RU2798864C1 - Communication method and device - Google Patents

Abstract

FIELD: wireless communication technologies.

SUBSTANCE: communication method performed by the network device includes: configuring at least two time domain parameters and/or at least two received beams for a user equipment (UE) to receive the same downlink control information (DCI); and transmitting the DCI to the UE via a physical downlink control channel (PDCCH) based on at least two time domain parameters.

EFFECT: increase in the reliability and noise immunity of communication.

16 cl, 7 dwg, 1 tbl

Description

FIELD OF TECHNOLOGY

The invention relates to communication technologies and, more specifically, to a communication method and device, as well as to a computer-readable data carrier.

BACKGROUND OF THE INVENTION

In the New Radio (NR, New Radio) system for 5th generation mobile networks or 5th generation wireless systems (referred to as 5G), especially with a communication bandwidth above 6 GHz, it is necessary to use beam-based transmission and reception to ensure the range coverage, since the attenuation of high-frequency channels occurs relatively quickly.

In the prior art, only one of a plurality of transmission configuration indication (TCI) states is activated by media access control (MAC) signaling corresponding to each control resource set (CORESET, control resource set) to transmit a physical physical downlink control channel (PDCCH), respectively, with TCI states configured by radio resource control (RRC) signaling. The UE then receives the PDCCH using the optimal received beam (Rx beam), which is also used when a reference signal (RS, reference signal) corresponding to the TCI state identifier is received. When a base station has a plurality of transmitter receiver points (TRPs), each TRP has one or more transmitting panels, or when a base station has only one TRP and a TRP has a plurality of transmitting panels, the plurality of panels can be used by the base station for transmission data to the same user equipment (UE, user equipment), and the plurality of panels may belong to the same TRP or different TRPs of a cell, or may reside in different cells. Similarly, the UE also has a plurality of panels that can be used by the UE to receive data transmitted by the base station. Therefore, there is a need to improve the reliability of the PDCCH.

SUMMARY OF THE INVENTION

The invention provides a communication method and device, as well as a computer-readable data carrier.

According to a first aspect of the embodiments of the invention, a communication method applied in a network device is provided. The method includes: configuring at least two time domain parameters and/or at least two received beams for a user equipment (UE) to receive the same downlink control information (DCI); and transmitting the DCI to the UE via a physical downlink control channel (PDCCH) based on the at least two time domain parameters.

In the above solution, the method also includes: configuring a search space for the UE, wherein said at least two time domain parameters correspond to the same search space.

In the above solution, said at least two time domain parameters correspond to different symbols within a time interval in the search space.

In the above solution, said at least two time domain parameters correspond to symbols in different time intervals in the search space.

In the above solution, the method also includes: configuring a search space for the UE in which the first time domain parameter of the at least two time domain parameters corresponds to the search space; and configuring a relative search space offset value for the UE, wherein the relative search space offset value is an offset value of a second time domain parameter of the at least two time domain parameters with respect to the first time domain parameter.

In the above solution, the search space relative offset value includes: one or more combinations of the PDCCH supervision cycle relative offset value, the PDCCH supervision slot offset relative offset value, and the within-slot monitoring symbol position relative offset value.

In the above solution, the method also includes: configuring at least two search spaces for the UE, wherein different time domain parameters of the at least two time domain parameters correspond to different search spaces.

In the above solution, configuring the search space includes configuring the following parameters: the PDCCH supervision cycle, the PDCCH supervision slot offset value, and the position of the supervision symbol within the time slot.

In the above solution, the method also includes: configuring a control resource set for the UE, wherein said at least two search spaces correspond to the same control resource set.

In the above solution, the method also includes: configuring a control resource set identifier for said control resource set, wherein the control resource set identifier is configured to indicate that received beams corresponding to different search spaces in the control resource set are different.

In the above solution, among the configuration parameters of the at least two search spaces, at least one of the PDCCH monitoring cycle parameter, the PDCCH monitoring slot offset parameter, and the intra-slot monitoring symbol position parameter is different.

In the above solution, the method also includes: configuring at least two control resource sets for the UE, wherein different search spaces of said at least two search spaces correspond to different control resource sets of said at least two control resource sets.

In the above solution, the frequency domain resources of the at least two sets of control resources are identical.

In the above solution, the time domain resources of the at least two control resource sets are identical, and the control resource set IDs or cell IDs of the at least two control resource sets are different.

In the above solution, the method also includes: for the same search space, configuring at least two different received beams for the UE, or for different search spaces with the same set of control resources, configuring different received beams for the UE, or for different sets control resources configuring different received beams for the UE.

In the above solution, different received beams are configured for the UE to receive DCI from different cells, or DCI from different round trip points (TRPs) in the same cell, or DCI from different antenna panels of the same TRP.

In the above solution, the method also includes: transmitting the configuration signaling, wherein the configuration signaling is configured to notify the UE that the DCI to be received by different received beams with the at least two time domain parameters is identical.

In the above solution, the method also includes: transmitting a signaling that includes a transmission configuration indication (TCI) state, wherein the TCI state includes TCI state information of at least one cell, or TCI state information of at least one TRP in the cell, or TCI status information of at least one TRP antenna panel.

According to a second aspect of the embodiments of the invention, a communication method applied in a user equipment (UE) is provided. The method includes: determining at least two time domain parameters and/or at least two received beams for receiving downlink control information (DCI); and receiving the DCI with different received beams based on different time domain parameters from said at least two time domain parameters, wherein the DCI is transmitted by the network device via a physical downlink control channel (PDCCH) based on said different time domain parameters.

In the above solution, the method also includes: determining a search space configured by the network device, wherein said at least two time domain parameters correspond to the same search space.

In the above solution, said at least two time domain parameters correspond to different symbols within a time interval in the search space.

In the above solution, said at least two time domain parameters correspond to symbols in different time intervals in the search space.

In the above solution, the method also includes: determining a search space and a relative search space offset value configured by the network device, wherein the first time domain parameter of the at least two time domain parameters corresponds to the search space, and the relative search space offset value is the value offsetting a second time domain parameter of said at least two time domain parameters relative to the first time domain parameter; the second time domain parameter of the at least two time domain parameters is determined based on the search space and the relative search space offset value.

In the above solution, the search space relative offset value includes: one or more combinations of the PDCCH monitoring cycle relative offset value, the PDCCH monitoring slot offset relative offset value, and the intra-slot symbol position relative offset value.

In the above solution, the method also includes: determining at least two search spaces configured by the network device, wherein different time domain parameters of said at least two time domain parameters correspond to different search areas.

In the above solution, configuring the search space includes configuring the following parameters: the PDCCH supervision cycle, the PDCCH supervision slot offset value, and the position of the supervision symbol within the time slot.

In the above solution, the method also includes: determining a control resource set configured by the network device, wherein said at least two search spaces correspond to the same control resource set.

In the above solution, determining the control resource set configured by the network device includes: determining a control resource set ID, wherein different received beams corresponding to different search spaces in the control resource set are determined based on the control resource set ID.

In the above solution, among the configuration parameters of the at least two search spaces, at least one of the PDCCH monitoring cycle parameter, the PDCCH monitoring slot offset parameter, and the intra-slot monitoring symbol position parameter is different.

In the above solution, the method also includes: determining at least two sets of control resources configured by the network device, wherein different search spaces of said at least two search spaces correspond to different sets of control resources of said at least two sets of control resources.

In the above solution, the frequency domain resources of the at least two sets of control resources are identical.

In the above solution, the time domain resources of the at least two control resource sets are identical, and the control resource set IDs or cell IDs of the at least two control resource sets are different.

In the above solution, the method also includes: determining at least two different received beams configured by the network device for the same search space, or determining different received beams configured by the network device for different search spaces for the same set of control resources, or determining different received beams configured by the network device for different sets of control resources.

In the above solution, different received beams are configured for the UE to receive DCI from different cells, or DCI from different round trip points (TRPs) in the same cell, or DCI from different antenna panels of the same TRP.

In the above solution, the method also includes: determining that the DCI to be transmitted by the network device via the PDCCH with at least two time domain parameters is identical based on the configuration signaling.

In the above solution, the method also includes: receiving a signaling that includes a transmission configuration indication (TCI) state, and determining a received beam based on the TCI state.

According to a third aspect of the embodiments of the invention, a communication device used in a network device is provided. The apparatus comprises: a configuration unit configured to set at least two time domain parameters and/or at least two received beams for a user equipment (UE) to receive the same downlink control information (DCI); and a first communication unit configured to transmit DCI to the UE via a physical downlink control channel (PDCCH) based on the at least two time domain parameters.

According to a fourth aspect of the embodiments of the invention, a communication device used in a user equipment (UE) is provided. The apparatus comprises: a determination unit configured to determine at least two time domain parameters and/or at least two received beams for receiving downlink control information (DCI); and a second communication module configured to receive DCI with different received beams based on different time domain parameters of said at least two time domain parameters, wherein the DCI is transmitted by the network device via a Physical Downlink Control Channel (PDCCH) based on said different time domain settings.

According to a fifth aspect of embodiments of the invention, a communication device is provided. The device contains: a processor and a memory for storing executable instructions. When executing the executable instructions, the processor is configured to implement a communication method in accordance with any of the above-described technical solutions used on the network device side.

According to a sixth aspect of the embodiments of the invention, a communication device is provided. The device contains: a processor and a memory for storing executable instructions. When executing the executable instructions, the processor is configured to implement a communication method in accordance with any of the above-described technical solutions applied on the UE side.

According to a seventh aspect of the embodiments of the invention, a computer-readable storage medium is provided on which executable instructions are stored. When executable instructions are executed by the processor, the processor performs the communication method in accordance with any of the technical solutions described above used on the side of the network device.

According to an eighth aspect of embodiments of the invention, a computer-readable storage medium is provided on which executable instructions are stored. When executable instructions are executed by the processor, the processor executes the communication method in accordance with any of the technical solutions described above applied on the UE side.

Technical solutions in accordance with embodiments of the invention may provide the following advantages: at least two time domain parameters and/or at least two received beams are configured for a UE for the same DCI; and the DCI is transmitted to the UE via the PDCCH based on the at least two time domain parameters mentioned. Thus, the same DCI is retransmitted to the same UE via the PDCCH with the at least two time domain parameters mentioned, so that the UE can receive the same DCI using different received beams with at least two time domain parameters. area, which improves the reliability and noise immunity of the PDCCH communication.

It is to be understood that the foregoing general description and the following detailed description are illustrative and explanatory only and do not limit the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

Fig. 1 is a block diagram of a wireless communication system according to an exemplary embodiment of the invention.

Fig. 2 is a first flowchart of a communication method according to an embodiment of the invention.

Fig. 3 is a second flowchart of a communication method according to an embodiment of the invention.

Fig. 4 is a first block diagram of a communication device according to an embodiment of the invention.

Fig. 5 is a second block diagram of a communication device according to an exemplary embodiment of the invention.

Fig. 6 is a block diagram of a device 800 for communicating according to an exemplary embodiment of the invention.

Fig. 7 is a block diagram of a device 900 for communicating according to an exemplary embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION

Here, illustrative embodiments of the invention will be described in detail, examples of which are shown in the accompanying drawings. In the following description, reference is made to the drawings, with the same reference numbers in the various drawings referring to the same or like elements, unless otherwise indicated. The implementations described in the following embodiments of the invention do not represent all implementations corresponding to the embodiments of the invention. Rather, they are merely examples of devices and methods according to certain aspects of the embodiments of the invention as set forth in the appended claims.

The terms used in the embodiments of the invention are only intended to describe specific embodiments of the invention and are not intended to limit the invention. As used in the embodiments and the appended claims, the singular forms are also intended to include plural forms, unless the context clearly dictates otherwise. It is also to be understood that the combination "and/or" as used herein refers to and includes any and all possible combinations of one or more related listed elements.

It should be understood that although the terms "first", "second", "third", etc. may be used in embodiments of the invention to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type. For example, within the spirit of the embodiments of the invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "in case" used here can mean "at the time of...", "when...", or "in response to a determination...".

In FIG. 1 is a block diagram of a wireless communication system according to an embodiment of the invention. As shown in FIG. 1, the wireless communication system is a communication system based on cellular mobile communication technology. The wireless communication system may include: multiple terminals 11 and multiple base stations 12.

Terminal 11 may be a device that provides communication for voice and/or data to a user. Terminal 11 may communicate with one or more core networks via a radio access network (RAN, radio access network). Terminal 11 may be an Internet of Things (IoT) terminal such as a touch device, a mobile phone (also referred to as a "cellular" phone), and a computer with an IoT terminal. For example, terminal 11 may be a fixed, portable, pocket, handheld, embedded computer, or vehicle-mounted device. For example, terminal 11 may be a station (STA), subscriber unit, subscriber station, mobile station, mobile device, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, terminal 11 may also be an unmanned aerial vehicle device. Alternatively, the terminal 11 may also be a vehicle-mounted device, such as a trip computer with a wireless communication function, or a wireless communication device connected to an external trip computer.

Alternatively, the terminal 11 may also be an infrastructure such as a street light, beacons, or other infrastructure with a wireless communication function. Base station 12 may be a network device in a wireless communication system. The wireless communication system may be a 4th generation (4G) mobile communication system, also known as a long term evolution (LTE) system. Alternatively, the wireless communication system may also be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may also be a next generation 5G system. The access network in a 5G system may be referred to as a new generation-radio access network (NG-RAN). Alternatively, it may be a machine-type communication (MTC) system.

Base station 12 may be an evolved base station (eNB) used in a 4G system. Alternatively, base station 12 may also be a base station (gNB) that uses a centralized distributed architecture in a 5G system. When the base station 120 adopts a centralized distributed architecture, it typically includes a central unit (CU, central unit) and at least two distributed units (DU, distributed unit). The CU is equipped with packet data convergence protocol (PDCP), radio link control (RLC) and medium access control (MAC) protocol stacks. The DU is provided with a physical (PHY) layer protocol stack. The specific implementation of the base station 12 is not limited to this embodiment of the invention.

A wireless connection can be established between base station 12 and terminal 11 via a wireless air interface. In various embodiments, the wireless air interface is a wireless air interface based on the fourth generation (4G) mobile network technology standard or a wireless air interface based on the fifth generation (5G) mobile network technology standard. For example, the wireless air interface may be a new air interface. Alternatively, the wireless air interface may also be a wireless air interface based on the next generation 5G mobile communication network technology standard.

In some embodiments, an end-to-end (E2E) connection may also be established between terminals 11, such as vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-infrastructure (V2I), means and pedestrians (V2P, vehicle to pedestrian) and other types of communication within the framework of communication between a vehicle and all objects (V2X, vehicle-to-everything). Terminal 11 and base station 12 may also be vehicle mounted devices.

In some embodiments of the invention, the wireless communication system described above may also include a network management device 13 .

Several base stations 12 are respectively connected to the network manager 13 . The network manager 13 may be a core network device in a wireless communication system. For example, network manager 130 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may also be another core network device such as serving gateway (SGW, serving gateway), public data network gateway (PGW), policy and charging rule function (PCRF, policy and charging). rules function) or home subscriber server (HSS, home subscriber server), etc. The implementation of the network management device 13 is not limited to this embodiment.

In an NR system, especially at a communication bandwidth above 6 GHz, since the high frequency channel decays quickly, it is necessary to use beam-based transmission and reception to ensure coverage.

Currently, for beam-based reception, the base station indicates the TCI type D state through signaling and informs the UE of the beam to be used in the reception. Each TCI state corresponds to an RS identifier, where RS can be a channel state information-reference signal (CSI-RS) reference signal resource with non-zero power (NZP, non-zero power) or a synchronization signal block (SSB). block), or may also be a sounding reference signal (SRS). Until now, it has been considered that the base station uses the panel to transmit the PDCCH to the UE, where the PDCCH TCI states are a list of TCI states configured by RRC signaling for each CORESET, and there are many TCI states (for example, 64) in the list, MAC signaling activates one of the many TCI states configured by RRC signaling for each CORESET. Then, when the base station transmits the PDCCH to the UE, the received reference signal beam corresponding to the TCI state activated by the MAC is used by the UE to receive the PDCCH in the CORESET resource. Currently, for the PDCCH, in one CORESET resource, the base station configures only one TCI state per UE.

When a base station has multiple TRPs and each TRP has one or more transmission panels, or when a base station has only one TRP and a TRP has multiple transmission panels, the base station can simultaneously transmit the same PDCCH to the same UE with using multiple panels, which may be from the same TRP or from different TRPs. That is, the PDCCH is retransmitted. Moreover, different cells may also retransmit the PDCCH to the same UE using different panels. In this case, the transmission directions of the different panels are different, so the UE also needs to receive multiple PDCCHs using different panels, and the base station needs to indicate different TCI states to the UE, with each TCI state corresponding to the direction of the received beam on each panel of the UE.

When a type D TCI state identifier is set by signaling, the user is instructed to receive the PDCCH using the optimal received beam (Rx beam), which is also used when an RS corresponding to the TCI state identifier is received, as described in Table 1.

In the prior art for a CORESET for PDCCH transmission, the MAC signaling corresponding to each CORESET can activate only one of the plurality of TCI states configured by its RRC signaling, then the TCI state activated by the MAC signaling is used to determine the received beam when the UE receives the PDCCH transmitted in CORESET.

When the base station configures the CORESET for the UE, the CORESET index can be configured (the CORESET index is identical to the CORESET of the same panel of the same TRP), the CORESET identifier can also be configured along with the time domain position and the frequency domain position occupied by the CORESET and the resources spatial domain (ie, TCI states activated by MAC signaling). The time domain is configurable only by characters, and the starting position of a character is determined by the search space.

Based on the wireless communication system described above, various embodiments of the described method are proposed regarding how to improve the reliability of the PDCCH.

Fig. 2 is a first flowchart of a communication method according to an embodiment of the invention. As shown in FIG. 2, the communication method is used in a network device such as a base station and includes the following steps.

In step S11, at least two time domain parameters and/or at least two received beams are configured for a user equipment (UE) to receive the same downlink control information (DCI).

In step S12, the DCI is transmitted to the UE via a Physical Downlink Control Channel (PDCCH) based on the at least two time domain parameters mentioned.

In this embodiment, the time domain parameter may refer to a PDCCH monitoring time domain parameter that appears in one cycle in the search space, or may refer to a PDCCH monitoring time domain parameter that appears in every cycle.

In this embodiment, the time domain parameter includes a position in the time domain.

In the technical solutions described in the embodiments of the invention, the network device configures at least two time domain parameters and/or at least two received beams for the UE to receive the same DCI and transmits the DCI via the PDCCH to the UE based on the at least mentioned at least two time domain parameters. Thus, the same DCI is retransmitted to the same UE via the PDCCH based on at least two time domain parameters, so that the UE can receive the same DCI using different received beams based on at least two parameters. time domain, which improves the reliability and noise immunity of the PDCCH communication.

Given that said at least two time domain parameters may belong to the same search space, in some embodiments of the invention, the method also includes: configuring a search space for the UE, wherein said at least two time domain parameters correspond to one and the same search space.

Configuring the search space includes configuring the following parameters: the PDCCH control cycle, the PDCCH control slot offset value, and the position of the control symbol within the slot.

The PDCCH control cycle is N slots; the PDCCH monitoring slot offset value is M slots, where M is 0 to N-1; and the position of the control symbol within the slot indicates the position of the start CORESET symbol, and determines the position of the CORESET symbol by adding the CORESET symbols to the position of the start CORESET symbol.

In some embodiments of the invention, the at least two time domain parameters correspond to different symbols within a time interval in the search space.

The position of the control symbol within a slot is a sequence of 14 bits, that is, 14 symbols in one slot. If the character needs to be controlled, the bit is "1", otherwise "0". Because it is a 14-bit sequence, the PDCCH control cycle can be the same as the PDCCH control slot offset value, but the position of the control symbol within the slot is used to distinguish time domain parameters when different panels transmit DCI for the terminal. Taking two bars as an example, the first 7 bits in the control character position within the timeslot indicates the bar #0 start character position for PDCCH transmission, which corresponds to the first TCI state, and the last 7 bits indicate the bar #1 start character position for PDCCH transmission, which corresponds to the second state of TCI. The number of symbols to transmit the PDCCH corresponding to each panel is the same as the number of symbols in the CORESET time domain resource configuration corresponding to the search space. When there are more than two panels, the 14 bits are divided into more bit sets, and each bit set indicates the start symbol position of the corresponding panel for PDCCH transmission. Alternatively, in another indication method, the position of the control symbol within a timeslot with a length of 14-bit sequence is still only used to indicate the position of the PDCCH start symbol, while for symbols in the CORESET time domain resource configuration corresponding to the search space, half characters is used by one panel to transmit the PDCCH and the other half of the symbols are used by the other panel to transmit the PDCCH. Taking panel #0 and panel #1 as an example, the position of the control character within the timeslot corresponding to the search space is, for example, symbol #0, and the number of symbols in the CORESET time domain resource configuration corresponding to the search space is 4, then the symbol #0 and symbol #1 are used by panel #0 to transmit the PDCCH for the UE, which corresponds to the first TCI state; symbol #2 and symbol #3 are used by panel #1 to transmit the PDCCH for the UE, which corresponds to the second TCI state. If there are more than two panels, the time domain symbols configured by CORESET are divided into more symbol sets, and each symbol set is used by the corresponding panel to transmit the PDCCH for the terminal, corresponding to a different TCI state. Therefore, for the DCI of said at least two different time domain parameters in the same search space, at least two different received beams need to be configured for the terminal.

The different panels may be different panels of the same TRP, or different panels of different TRPs, or different panels of different cells, and this will not be repeated hereinafter.

Thus, the at least two time domain parameters are indicated by configuring one search space for the UE.

In other embodiments of the invention, the at least two time domain parameters correspond to symbols in different time intervals in the search space.

For example, when the PDCCH control symbols appear in different time slots, the PDCCH control symbols in the first time slot having the PDCCH control symbols are used by the first panel to transmit DCI for the terminal, and the PDCCH control symbols in the second time slot having the PDCCH control symbols are used by the second panel to transmit DCI to the terminal. When there are more than two panels, time slots corresponding to each panel for PDCCH transmission for the terminal appear in order. Therefore, for the DCI of said at least two different time domain parameters in the same search space, at least two different received beams need to be configured for the terminal.

Thus, the at least two time domain parameters are indicated by configuring one search space for the UE.

Given that the at least two time domain parameters may belong to different search spaces but belong to the same CORESET, in some embodiments of the invention, the method also includes: configuring a search space for the UE, wherein the first time domain parameter of the mentioned at least two time domain parameters correspond to the search space; and configuring a relative search space offset value for the UE, wherein the relative search space offset value is an offset value of a second time domain parameter of the at least two time domain parameters with respect to the first time domain parameter.

In this embodiment, the second time domain parameter is another time domain parameter than the first time domain parameter, among the at least two time domain parameters.

Configuring the search space includes configuring the following parameters: the PDCCH control cycle, the PDCCH control slot offset value, and the position of the control symbol within the slot.

The PDCCH control cycle is N slots; the PDCCH monitoring slot offset value is M slots, where M is 0 to N-1; and the check symbol position within the slot indicates the position of the start CORESET symbol, and determines the position of the PDCCH CORESET check symbol by adding CORESET symbols to the start CORESET symbol position.

In some embodiments, the search space relative offset value includes: one or more combinations of a PDCCH supervision cycle relative offset value, a PDCCH supervision slot offset relative offset value, and an intra-slot relative control symbol position offset value.

For example, the relative offset value of the PDCCH control cycle and the relative offset value of the offset value of the PDCCH control slot are 0, and the relative offset value of the control symbol position within the slot is the number of symbols configured by CORESET. That is, for the two search spaces, the PDCCH monitoring cycles are identical and the PDCCH monitoring slot offsets are also identical, but the start symbol positions are different. Thus, the PDCCH control symbols in the two search spaces are located at different symbol positions in the same time slot.

Thus, the UE is informed to receive the at least two time domain parameters of the same DCI using different beams by configuring a search space and a relative search space offset value for the UE.

Given that the at least two time domain parameters may belong to different search spaces, in some embodiments of the invention, the method also includes: configuring at least two search spaces for the UE, wherein different time domain parameters from the at least two time domain parameters correspond to different search spaces.

Configuring the search space includes configuring the following parameters: the PDCCH control cycle, the PDCCH control slot offset value, and the position of the control symbol within the slot.

The PDCCH control cycle is N slots; the PDCCH monitoring slot offset value is M slots, where M is 0 to N-1; and the check symbol position within the slot indicates the position of the start CORESET symbol, and determines the position of the PDCCH CORESET check symbol by adding CORESET symbols to the start CORESET symbol position.

Thus, by configuring different search spaces for the UE, the UE is informed to receive the at least two time domain parameters of the same DCI using different beams.

Considering that only the number of occupied symbols is specified in the CORESET configuration, the time slot and the position of the start symbol in the time slot are determined by the three parameters (i.e., PDCCH control cycle, PDCCH control slot offset value, and control symbol position within the time slot) configured by the space search, so different panels can correspond to search spaces with different time domain settings. Therefore, in some embodiments, the method also includes: configuring a control resource set (CORESET) for the UE, wherein at least two search spaces correspond to the same CORESET.

In the above solution, the method also includes: configuring a CORESET identifier for the CORESET, wherein the CORESET identifier is used to indicate that received beams corresponding to different search spaces in the CORESET are different.

In the above solution, among the configuration parameters of the at least two search spaces, at least one of the PDCCH monitoring cycle parameter, the PDCCH monitoring slot offset parameter, and the intra-slot monitoring symbol position parameter is different.

For example, the PDCCH monitoring cycles are identical, but the PDCCH monitoring slot offsets are different.

For example, the PDCCH monitoring cycles are different and the PDCCH monitoring slot offsets are different.

For example, the PDCCH supervision cycles are identical, the PDCCH supervision slot offsets are identical, but the positions of the supervision symbols within a slot are different.

Thus, by configuring two search spaces in one CORESET for the UE and configuring different TCI states for different search spaces, it can be achieved that different panels respectively use different time domain parameters of different search spaces to transmit the same DCI for the UE.

Considering that only the number of occupied symbols is specified in the CORESET configuration, the time slot and the position of the start symbol in the time slot are determined by the three parameters (i.e., PDCCH control cycle, PDCCH control slot offset value, and control symbol position within the time slot) configured by the space search, so different panes can correspond to different time domain settings for different search spaces. Therefore, in some embodiments, the method also includes: configuring at least two CORESETs for the UE, wherein different search spaces of said at least two search spaces correspond to different CORESETs of said at least two CORESETs.

In other words, different search spaces correspond to different CORESETs.

In the above solution, the frequency domain resources are at least CORESET identical.

In the above solution, the time domain resources of the at least two CORESETs are identical, and the CORESET IDs or cell IDs of the at least two CORESETs are different.

Thus, by configuring a set of CORESETs for a UE and configuring different TCI states for different CORESETs, it can be achieved that different panels respectively use different time domain parameters of different search spaces of different CORESETs to transmit the same DCI for the terminal.

Given that the UE allows the same DCI to be received using different received beams based on at least two time domain parameters, in some embodiments, the method also includes: for the same search space, configuring at least two different of received beams for the UE, or for different search spaces with the same CORESET configuring different received beams for the UE, or for different CORESETs configuring different received beams for the UE.

In the above solution, different received beams are used for the UE to receive DCI from different cells, or DCI from different round trip points (TRPs) in the same cell, or DCI from different antenna panels of the same TRP.

In the case where the UEs are configured with at least two different received beams for the same search space, in some embodiments of the invention, the method also includes transmitting Radio Resource Control (RRC) signaling. RRC signaling configures multiple TCI state lists for a terminal. Each TCI status list corresponds to one panel's TCI status information. Alternatively, the RRC signaling configures a list of TCI states for the terminal, and the list includes TCI state information of a plurality of panels. The method also includes: transmitting a plurality of MAC CE signaling, each MAC CE signaling activating a TCI state, and each TCI state is used by the terminal to receive the DCI transmitted by the corresponding panel; or transmitting MAC CE signaling, wherein the MAC CE signaling activates a plurality of TCI states, and each TCI state is used by the terminal to receive the DCI transmitted by the corresponding panel.

In the case where the UE is configured with different received beams for different search spaces with the same CORESET, in some embodiments of the invention, the method also includes RRC signaling. RRC signaling configures multiple TCI state lists for a terminal. Each TCI status list corresponds to one panel's TCI status information. Alternatively, the RRC signaling configures a list of TCI states for the terminal, and the list includes TCI state information of a plurality of panels. The method also includes: transmitting a plurality of MAC CE signaling, each MAC CE signaling activating a TCI state, and each TCI state is used by the terminal to receive the DCI transmitted by the corresponding panel; or transmitting MAC CE signaling, wherein the MAC CE signaling activates a plurality of TCI states, and each TCI state is used by the terminal to receive the DCI transmitted by the corresponding panel.

In the case where the UE is configured with different received beams for different sets of control resources, in some embodiments of the invention, the method also includes RRC signaling. RRC signaling configures multiple TCI state lists for a terminal. Each TCI status list corresponds to one panel's TCI status information. Alternatively, the RRC signaling configures a list of TCI states for the terminal, and the list includes TCI state information of a plurality of panels. The method also includes: transmitting a plurality of MAC CE signaling, each MAC CE signaling activating a TCI state, and each TCI state is used by the terminal to receive the DCI transmitted by the corresponding panel; or transmitting MAC CE signaling, wherein the MAC CE signaling activates a plurality of TCI states, and each TCI state is used by the terminal to receive the DCI transmitted by the corresponding panel.

In order to inform the UE about specific configuration information, in the above solution, the method also includes:

transmitting configuration signaling, wherein the configuration signaling is used to notify the UE that the DCI to be received on different received beams with the at least two time domain parameters is identical.

For example, the configuration signaling is RRC signaling or MAC signaling; configuration signaling can also be used to configure at least two time domain parameters and/or at least two received beams for a UE to receive the same DCI, e.g., at least two received beams configured for the same search space. , or different received beams configured for different search spaces in the same control resource set. That is, the terminal is implicitly notified that the DCI transmitted based on different time domain parameters is identical, and DCI combined reception can be performed to improve reliability.

To determine the beam received by the UE in the above solution, the method also includes: signaling that includes a TCI state, wherein the TCI state includes information about the TCI state of at least one cell, or information about the TCI state of at least one TRP in the cell, or information the TCI status of at least one TRP antenna panel.

For example, the signaling that includes the TCI state may be RRC signaling or MAC signaling.

For example, in the case where a plurality of control resource sets are configured for a UE and a TCI state list is configured for each control resource set, the TCI state corresponding to the control resource set is activated by a media access control (MAC) control element (CE) for each set. management resources.

For example, in the case where a plurality of control resource sets are configured for a UE and a TCI state list is configured for a plurality of control resource sets, for a plurality of control resource sets, the TCI state in the TCI state list corresponding to the plurality of control resource sets is activated by one MAC CE.

For example, when a control resource set is configured for a UE and a TCI state list is configured for a control resource set, the TCI state list includes TCI state information of a plurality of panels, and a plurality of TCI states in the TCI state list corresponding to the control resource set are activated by one MAC CE.

In the communication method according to the invention, the UE is configured to receive at least two time domain parameters and/or at least two received beams for the same DCI; The DCI is transmitted to the UE via the PDCCH based on the at least two time domain parameters mentioned. Thus, the same DCI is retransmitted to the same UE via the PDCCH with the at least two time domain parameters mentioned, so that the UE can receive the same DCI using different received beams with the at least two parameters mentioned. time domain, which improves the reliability and noise immunity of the PDCCH communication.

Fig. 3 is a second flowchart of a communication method according to an embodiment of the invention. As shown in FIG. 3, the communication method is used in the user equipment (UE) and includes the following steps.

In step S21, at least two time domain parameters and/or at least two received beams are determined for receiving the same downlink control information (DCI).

In step S22, the same DCI is received with different received beams based on different time domain parameters from said at least two time domain parameters, wherein the DCI is transmitted by the network device via a Physical Downlink Control Channel (PDCCH) based on said different time domain settings.

In the communication method according to this embodiment, the UE can receive the same DCI with different received beams with the at least two time domain parameters mentioned, which improves the reliability and robustness of the PDCCH communication.

In some embodiments of the invention, the method also includes: determining the search space configured by the network device. Said at least two time domain parameters correspond to the same search space.

Thus, the UE can determine the at least two time domain parameters for receiving the same DCI transmitted by the network device based on the search space.

In some embodiments of the invention, the at least two time domain parameters correspond to different symbols within a time interval in the search space.

Thus, the UE can determine at least two time domain parameters for receiving the same DCI transmitted by the network device based on different symbols within a time interval in the search space.

In the above solution, said at least two time domain parameters correspond to symbols in different time intervals in the search space.

Thus, the UE can determine at least two time domain parameters for receiving the same DCI transmitted by the network device based on symbols in different time slots in the search space.

In some embodiments, the method also includes: determining a search space and a relative search space offset value configured by the network device. The first time domain parameter of the at least two time domain parameters corresponds to the search space, and the relative search space offset value is the offset value of the second time domain parameter of the at least two time domain parameters relative to the first time domain parameter. The second time domain parameter of the at least two time domain parameters is determined based on the search space and the relative search space offset value.

In the above solution, the search space relative offset value includes: one or more combinations of the PDCCH supervision cycle relative offset value, the PDCCH supervision slot offset relative offset value, and the within-slot monitoring symbol position relative offset value.

Thus, the UE can determine the first time domain parameter and the second time domain parameter different from the first time domain parameter among the at least two time domain parameters based on the search space and the relative search space offset value.

In some embodiments, the method also includes: determining at least two search spaces configured by the network device. Different time domain parameters of the at least two time domain parameters correspond to different search spaces.

Configuring the search space includes configuring the following parameters: the PDCCH control cycle, the PDCCH control slot offset value, and the position of the control symbol within the slot.

Thus, the UE may determine different time domain parameters among the at least two time domain parameters based on different search spaces.

In some embodiments of the invention, the method also includes: determining the set of control resources configured by the network device. Said at least two search spaces correspond to the same set of control resources.

Determining the management resource set configured by the network device includes: determining a management resource set identifier. Different received beams corresponding to different search spaces in the control resource set are determined based on the control resource set ID.

In the above solution, among the configuration parameters of the at least two search spaces, at least one of the PDCCH monitoring cycle parameter, the PDCCH monitoring slot offset parameter, and the intra-slot monitoring symbol position parameter is different.

Thus, the UE determines the reception of the DCI transmitted by different panels for the terminal by using different received beams with different time domain parameters of different search spaces through different search spaces according to the control resource set configured by the network device.

In some embodiments of the invention, the method also includes: determining at least two sets of control resources configured by the network device, wherein different search spaces from said at least two search spaces correspond to different sets of control resources from said at least two sets of control resources.

In the above solution, the frequency domain resources of the at least two sets of control resources are identical.

In the above solution, the time domain resources of the at least two control resource sets are identical, and the control resource set IDs or cell IDs of the at least two control resource sets are different.

Thus, the UE determines to receive the DCI transmitted by different panels for the terminal using different received beams with different time domain parameters in different search spaces with multiple sets of control resources configured by the network device through different search spaces.

In some embodiments, the method also includes: determining at least two different received beams configured by the network device for the same search space, or determining different received beams configured by the network device for different search spaces with the same set of control resources. , or determining different received beams configured by the network device for different sets of control resources.

In the above solution, different received beams are used for the UE to receive DCI from different cells, or DCI from different TRPs in the same cell, or DCI from different antenna panels in the same TRP.

In some embodiments, the method also includes: determining that the DCI to be transmitted by the network device over the PDCCH with at least two time domain parameters is identical based on the configuration signaling.

For example, the configuration signaling is RRC signaling or MAC signaling.

In some embodiments, the method also includes: receiving a signaling that includes a transmission configuration indication (TCI) state, and determining a received beam based on the TCI state.

For example, the signaling including the TCI state may be RRC signaling or MAC signaling.

The communication method according to the invention may include determining at least two time domain parameters and/or at least two received beams for receiving the same DCI; and receiving the same DCI using different received beams based on different time domain parameters of the at least two time domain parameters, the DCI being transmitted by the network device via the PDCCH with different time domain parameters. Thus, the UE can use different received beams to receive the same DCI with at least two time domain parameters, which improves the reliability and robustness of the PDCCH communication.

Fig. 4 is a first block diagram of a communication device according to an embodiment of the invention. The communication device is applied on the side of a network device such as a base station. As shown in FIG. 4, the device comprises a configuration unit 10 and a first communication unit 20.

The configuration unit 10 configures the UE with at least two time domain parameters and/or at least two received beams to receive the same DCI.

The first communication unit 20 is configured to transmit DCI to the UE via the PDCCH based on the at least two time domain parameters mentioned.

In some embodiments of the invention, configuration block 10 also configures the search space for the UE. Said at least two time domain parameters correspond to the same search space.

In some embodiments of the invention, the at least two time domain parameters correspond to different symbols within a time interval in the search space.

In some embodiments of the invention, the at least two time domain parameters correspond to symbols in different time intervals in the search space.

In some embodiments of the invention, configuration block 10 also configures the search space for the UE. The first time domain parameter of the at least two time domain parameters corresponds to the search space.

The configuration unit 10 also configures the relative search space offset value for the UE. The search space relative offset value is an offset value of the second time domain parameter of the at least two time domain parameters relative to the first time domain parameter.

In the above solution, the search space relative offset value includes: one or more combinations of the PDCCH supervision cycle relative offset value, the PDCCH supervision slot offset relative offset value, and the within-slot monitoring symbol position relative offset value.

In some embodiments, the configuration module 10 also configures at least two search spaces for the UE, wherein different time domain parameters of the at least two time domain parameters correspond to different search spaces.

In the above solution, configuring the search space includes configuring the following parameters: the PDCCH supervision cycle, the PDCCH supervision slot offset value, and the position of the supervision symbol within the time slot.

In some embodiments, configuration module 10 also configures a control resource set for the UE, wherein said at least two search spaces correspond to the same control resource set.

In some embodiments, the configuration unit 10 also configures the control resource set identifier for the control resource set, where the control resource set identifier is used to indicate that received beams corresponding to different search spaces in the control resource set are different.

In the above solution, among the configuration parameters of the at least two search spaces, at least one of the PDCCH monitoring cycle parameter, the PDCCH monitoring slot offset parameter, and the intra-slot monitoring symbol position parameter is different.

In some embodiments, configuration module 10 also configures at least two sets of control resources for the UE, wherein different search spaces of the at least two search spaces correspond to different sets of control resources of the at least two sets of control resources.

In the above solution, the frequency domain resources of the at least two sets of control resources are identical.

In the above solution, the time domain resources of the at least two control resource sets are identical, and the control resource set IDs or cell IDs of the at least two control resource sets are different.

In some embodiments, the configuration module 10 also configures the UE with at least two different received beams for the same search space, or configures the UE with different received beams for different search spaces with the same set of control resources, or configures the UE with different received beams for different sets of control resources.

In the above solution, different received beams are configured for the UE to receive DCI from different cells, or DCI from different round trip points (TRPs) in the same cell, or DCI from different antenna panels of the same TRP.

In some embodiments of the invention, the first communication unit 20 is also configured to transmit configuration signaling, wherein the configuration signaling is configured to notify the UE that the DCI to be received using different received beams with said at least two time domain parameters is identical.

In some embodiments, the first communication unit 20 is also configured to transmit signaling that includes a transmission configuration indication (TCI) state, wherein the TCI state includes TCI state information of at least one cell, or TCI state information of at least one TRP. in the cell, or TCI status information of at least one transmit-receive point (TRP) antenna panel.

With regard to the device in the above-described embodiments of the invention, the specific ways in which each module performs operations have been described in detail in the method embodiments, which will not be described in detail here.

In practical applications, the particular structures of the configuration unit 10 described above and the first communication unit 20 may be implemented by a central processing unit (CPU), a microcontroller unit (MCU), a digital signal processor (DSP), or a programmable logic controller (PLC, programmable logic controller), etc. in the communication device or in the network device to which the communication device belongs.

The communication device described in this embodiment of the invention may be located on the side of a network device such as a base station.

Those skilled in the art will appreciate that the functions of each processing unit in the communication device in the embodiments of the invention can be understood by referring to the above description of the communication method applied on the network device side. The processing module may be implemented by an analog circuit that implements the functions described in the embodiments of the invention, and may also be implemented by running software on a network device that performs the functions described in the embodiments of the invention.

The communication apparatus described in the embodiments of the invention improves the reliability and robustness of PDCCH communications.

Fig. 5 is a second block diagram of a communication device according to an exemplary embodiment of the invention. The communication device is applied on the UE side. As shown in FIG. 5, the device comprises a determination unit 30 and a second communication unit 40.

The determiner 30 is configured to determine at least two time domain parameters and/or at least two received beams for receiving the same downlink control information (DCI).

The second communication unit 40 is configured to receive DCI with different received beams based on different time domain parameters from the at least two time domain parameters, wherein the DCI is transmitted by the network device via a Physical Downlink Control Channel (PDCCH) based on different time domain parameters .

In some embodiments of the invention, determiner 30 is also configured to determine a search space configured by a network device, wherein said at least two time domain parameters correspond to the same search space.

In some embodiments of the invention, the at least two time domain parameters correspond to different symbols within a time interval in the search space.

In some embodiments of the invention, at least two time domain parameters correspond to symbols in different time intervals in the search space.

In some embodiments of the invention, determiner 30 is also configured to determine a search space and a relative search space offset value configured by the network device, wherein the first time domain parameter of the at least two time domain parameters corresponds to the search space, and the relative search space offset value is an offset value of the second time domain parameter of the at least two time domain parameters with respect to the first time domain parameter.

The second time domain parameter of the at least two time domain parameters is determined based on the search space and the relative search space offset value.

In the above solution, the search space relative offset value includes one or more combinations of the PDCCH supervision cycle relative offset value, the PDCCH supervision slot offset relative offset value, and the within-slot monitoring symbol position relative offset value.

In some embodiments, determiner 30 is also configured to determine at least two search spaces configured by the network device, wherein different time domain parameters of the at least two time domain parameters correspond to different search spaces.

Configuring the search space includes configuring the following parameters: the PDCCH control cycle, the PDCCH control slot offset value, and the position of the control symbol within the slot.

In some embodiments of the invention, determination module 30 is also configured to determine a control resource set configured by the network device, wherein said at least two search spaces correspond to the same control resource set.

In some embodiments, determination module 30 is also configured to determine a control resource set identifier, wherein different received beams corresponding to different search spaces in the control resource set are determined based on the control resource set identifier.

In some embodiments of the invention, among the configuration parameters of the at least two search spaces, at least one of the PDCCH control cycle parameter, the PDCCH control slot offset parameter, and the within-slot control symbol position parameter is different.

In some embodiments of the invention, the determiner 30 is also configured to determine at least two sets of control resources configured by the network device, wherein different search spaces from said at least two search spaces correspond to different sets of control resources from said at least two sets of resources. management.

In some embodiments of the invention, the frequency domain resources of the at least two sets of control resources are identical.

In some embodiments, the time domain resources of the at least two control resource sets are identical, and the control resource set IDs or cell IDs of the at least two control resource sets are different.

In some embodiments of the invention, determiner 30 is also configured to determine at least two different received beams configured by the network device for the same search space, or to determine different received beams configured by the network device for different search spaces with the same set control resources, or determining different received beams configured by the network device for different sets of control resources.

Different receive beams are configured for the UE to receive DCI from different cells, or DCI from different round trip points (TRPs) in the same cell, or DCI from different antenna panels of the same TRP.

In some embodiments of the invention, the determination module 30 is also configured to determine that the DCI to be transmitted by the network device over the PDCCH with the at least two time domain parameters mentioned is identical based on the configuration signaling.

In some embodiments, the second communication unit 40 is also configured to receive signaling that includes a transmission configuration indication (TCI) state and determine a received beam based on the TCI state.

With regard to the device in the above embodiments, the specific ways in which each module performs operations have been described in detail in the method embodiments, which will not be described in detail here.

In practical applications, the particular structures of the determiner 30 and the second communication unit 40 may be implemented by a CPU, MCU, DSP, or PLC in the communication device or the UE that owns the communication device.

The communication device described in this embodiment of the invention may be located on the side of the UE.

Those skilled in the art will appreciate that the functions of each processing unit in the communication device according to the embodiment of the invention can be understood by referring to the above description of the communication method applied at the UE side. The module may be implemented by analog circuitry implementing the functions described in the embodiments of the invention, and may also be implemented by running software on a terminal that implements the functions described in the embodiments of the invention.

The communication apparatus described in the embodiments of the invention can improve the reliability and robustness of PDCCH communications.

Fig. 6 is a block diagram of a device 800 for communicating according to an exemplary embodiment of the invention. For example, device 800 may be a terminal, which may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

As shown in FIG. 6, device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, measurement component 814, and communication component 816.

The processing component 802 typically manages the general operations of the device 800, such as operations related to display, phone calls, data transfer, camera operations, and recording operations. Processing component 802 may include one or more processors 820 for executing instructions for performing all or some of the steps of the methods described above. Moreover, the processing component 802 may include one or more modules that provide interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module for enabling interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support the operation of the device 800. Examples of such data include instructions for any application or method running on the device 800, contact information, phone book data, messages, images, videos, and so on. Memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, for example, through static random-access memory (SRAM, static random-access memory), electrically erasable programmable read-only memory (EEPROM, electrically-erasable programmable read only memory), erasable programmable permanent memory (EPROM, erasable programmable read only memory), programmable permanent memory (PROM, programmable read only memory), permanent memory (ROM, read only memory), magnetic memory, flash memory, magnetic or optical disk.

Power component 806 provides power to various components of device 800. Power component 806 may include a power management system, one or more power supplies, and any other components associated with generating, controlling, and distributing power within device 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments of the invention, the screen may include a liquid crystal display (LCD, liquid crystal display) and a touch panel (TP, touch panel). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input from a user. The touchpad includes one or more touch sensors for recognizing taps, swipes, and gestures on the touchpad. The touch sensors can not only sense a touch or slide boundary, but also determine the time period and pressure associated with the touch or slide. In some embodiments, media component 808 includes a front camera and/or a rear camera. When the device 800 is in an operating mode, such as a photo or video mode, the front camera and/or the rear camera can receive external media. Both the front and rear cameras can be a fixed optical lens system or have focus and optical zoom capabilities.

Audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a microphone (MIC for short) that is configured to receive external audio signals when the device 800 is in an operating mode such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in the memory 804 or transmitted via the communication component 816 . In some embodiments of the invention, the audio component 810 also includes a speaker for outputting audio signals.

The input/output interface 812 provides an interface between the processing component 802 and peripheral interface modules such as a keyboard, control wheel, buttons, and the like. The buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.

The metering component 814 includes one or more sensors to provide an assessment of the status of various aspects of the device 800. For example, the metering component 814 may determine the open/closed state of the device 800, the relative position of components such as the display and keyboard of the device 800, a change in the position of the device 800, or a device component. 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and the change in temperature of the device 800. The measurement component 814 may include a proximity sensor configured to detect the presence of nearby objects without physical contact with them. The measurement component 814 may also include a light sensor, such as a complementary metal oxide semiconductor (CMOS) or charge-coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, measurement component 814 may also include an accelerometer, gyroscope, magnetic sensor, pressure sensor, or temperature sensor.

Communications component 816 is configured to provide wired or wireless communication between device 800 and other devices. Device 800 may access a wireless network based on a communication standard such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast control system via a broadcast channel. In an exemplary embodiment of the invention, communication component 816 also includes a near field communication (NFC) wireless communication module for providing short-range communications. For example, the NFC module can be implemented on the basis of radio frequency identification technology (RFID, radio frequency identification), infrared data association technology (IrDA, ultra-wide band), ultra-wideband access technology (UWB, ultra-wide band), Bluetooth technology ( BT) and other technologies.

In exemplary embodiments, device 800 may be implemented using one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic device (PLD), field programmable gate array (FPGA), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described communication method on the UE side.

Exemplary embodiments of the invention also provide a computer-readable storage medium containing executable instructions, such as those stored in memory 804 and executed by processor 820 in device 800 to perform the method described above. For example, a computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical storage device, and the like.

Fig. 7 is a block diagram of a device 900 for communicating according to an exemplary embodiment of the invention. For example, device 900 may be provided as a server. As shown in FIG. 9, device 900 includes a processing component 922, which also includes one or more processors, and a memory resource represented by memory 932 for storing instructions executed by processing component 922, such as an application program. An application program stored in memory 932 may include one or more modules, each of which corresponds to a set of instructions. In addition, the processing component 922 is configured to execute instructions for executing the communication method applied on the network device side.

The device 900 may also include a power component 926 configured to power the device 900, a wired or wireless network interface 950 configured to connect the device 900 to a network, and an input/output (I/O) interface 958. Device 900 may operate on an operating system stored in memory 932 such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, and the like.

The technical solutions described in the embodiments of the invention can be arbitrarily combined in the absence of contradictions.

Those skilled in the art will appreciate other embodiments of the invention after considering the description and practice of the invention disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include well-known or conventional techniques in the art not specified herein. The description and embodiments of the invention are to be considered as illustrative and the scope and spirit of the invention are defined by the claims.

It should be understood that the present invention is not limited to the precise structures described above and shown in the accompanying drawings, and that various modifications and changes may be made within the spirit of the invention. The scope of the present invention is only limited by the appended claims.

Claims (41)

1. A communication method performed by a network device, including: configuring at least two time domain parameters and/or at least two received beams for a user equipment (UE) to receive the same downlink control information (DCI); And transmitting the same DCI to the UE via a physical downlink control channel (PDCCH) based on the at least two time domain parameters; while configuring the search space includes configuring the following parameters: the PDCCH control cycle, the PDCCH control slot offset value, and the position of the control symbol within the slot. 2. The method according to p. 1, also including: configuring a search space for the UE, wherein the first time domain parameter of the at least two time domain parameters corresponds to the search space; And configuring a relative search space offset value for the UE, wherein the relative search space offset value is an offset value of a second time domain parameter of the at least two time domain parameters relative to the first time domain parameter. 3. The method of claim 2, wherein the relative search space offset value includes: one or more combinations of a PDCCH control cycle relative offset value, a PDCCH control slot offset value relative offset value, and a control symbol position relative offset value within a slot. 4. The method of claim 1, further comprising: configuring at least two search spaces for the UE, wherein different time domain parameters of said at least two time domain parameters correspond to different search spaces. 5. The method according to p. 4, also including: configuring a control resource set for the UE, wherein said at least two search spaces correspond to said control resource set. 6. The method according to p. 5, also including: configuring a control resource set identifier for said control resource set, wherein the control resource set identifier is configured to indicate that received beams corresponding to different search spaces in the control resource set are different. 7. The method according to claim 5, in which among the configuration parameters of the at least two search spaces, at least one of the following is different: a PDCCH supervision cycle, a PDCCH supervision slot offset, or a position of a supervision symbol within a time slot. 8. The method according to claim 4, also including: configuring at least two sets of control resources for the UE, wherein different search spaces of said at least two search spaces correspond to different sets of control resources of said at least two sets of control resources. 9. The method according to claim 8, in which the frequency domain resources of the at least two sets of control resources are identical. 10. The method of claim 9, wherein the time domain resources of the at least two control resource sets are identical, and the control resource set IDs or cell IDs of the at least two control resource sets are different. 11. The method according to p. 1, also including: signaling that includes a transmission configuration indication (TCI) state, wherein the TCI state includes one of TCI state information of at least one cell, TCI state information of at least one TRP in the cell, and TCI state information of at least one antenna panel TRP. 12. A communication method performed by a user equipment (UE) and including: determining at least two time domain parameters and/or at least two received beams for receiving the same downlink control information (DCI); And receiving the same DCI with different received beams based on different time domain parameters from said at least two time domain parameters, wherein the same DCI is transmitted by a network device via a Physical Downlink Control Channel (PDCCH) based on said different time domain parameters; while configuring the search space includes configuring the following parameters: the PDCCH control cycle, the PDCCH control slot offset value, and the position of the control symbol within the slot. 13. The method according to p. 12, also including: determining at least two search spaces configured by the network device, wherein different time domain parameters of said at least two time domain parameters correspond to different search spaces. 14. The method according to p. 13, also including: defining at least two sets of control resources configured by the network device, wherein different search spaces of said at least two search spaces correspond to different sets of control resources of said at least two sets of control resources. 15. Network communication device, containing: processor and memory for storing executable instructions; wherein, when executing the executable instructions, the processor is configured to implement the communication method according to any one of claims. 1-11. 16. User communication device, containing: processor and memory for storing executable instructions; wherein, when executing the executable instructions, the processor is configured to implement the communication method according to any one of claims. 12-14.

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