CN114793151B

CN114793151B - Method and apparatus in a node for wireless communication

Info

Publication number: CN114793151B
Application number: CN202110101290.9A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2024-05-14
Anticipated expiration: 2041-01-26
Also published as: CN114793151A

Abstract

A method and apparatus in a node for wireless communication is disclosed. The node first receives a first information set, wherein the first information set is used for determining X1 first type time windows and X1 second type time windows; subsequently monitoring K1 control signaling alternatives in a third time window; the first control signaling alternative and the second control signaling alternative are one of the K1 control signaling alternatives and are associated with each other; the first control signaling alternative belongs to a first time window, and the second control signaling alternative belongs to a second time window; the first time window and the second time window are one of the X1 first type time windows and the X1 second type time windows, respectively; the aggregation levels employed by the first and second control signaling alternatives are used to determine the first and second time windows, respectively. The present application optimizes the configuration of multiple search spaces when jointly monitored to improve performance.

Description

Method and apparatus in a node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a design scheme and apparatus of control signaling in wireless communication.

Background

In 5G NR (New Radio), massive (Massive) MIMO (Multi-Input Multi-Output) is an important technology. In massive MIMO, a plurality of antennas are formed into narrower beams by Beamforming (Beamforming), which are directed in a specific direction to improve communication quality. In 5G NR, CORESET (Control Resource Set ) for PDCCH (Physical Downlink Control Channel, physical downlink Control channel) monitoring and search space sets (SEARCH SPACE SET) are defined, each of which is associated with one CORESET, CORESET for configuring frequency domain resources, mapping of CCEs (Control CHANNEL ELEMENT, control channel elements) to REGs (Resource Element Group, resource element groups), and related information such as TCI (Transmission Configuration Indication ); the search space set is used for configuring time domain resources occupied by the PDCCH, supported DCI (Downlink Control Information ) Format (Format), supported AL (Aggregation Level ), and supported PDCCH CANDIDATE (alternative) numbers under different aggregation levels.

In the discussion of NR R17, for a Multi-TRP (transmit receive node) scenario, to increase PDCCH reliability, a terminal may jointly detect two PDCCH alternatives (CANDIDATE) that are associated together to improve performance.

Disclosure of Invention

The inventor finds through research that when two search space sets can be correlated together for PDCCH joint monitoring, one problem to be solved is how to configure two correlated PDCCH alternatives. A simple solution is to directly indicate by explicit signaling, but the above method obviously increases signaling overhead, and the configuration of the current search space set is that one RRC (Radio Resource Control ) signaling uniformly configures all aggregation levels, which also has problems in PDCCH joint monitoring.

In view of the above, the present application discloses a solution. It should be noted that, although the above description uses massive MIMO and beam-based communication scenarios as examples, the present application is also applicable to other scenarios such as LTE multi-antenna systems, and achieves technical effects similar to those in massive MIMO and beam-based communication scenarios. Furthermore, the adoption of unified solutions for different scenarios (including but not limited to massive MIMO, beam-based communication and LTE multi-antenna systems) also helps to reduce hardware complexity and cost. Embodiments of the application and features in embodiments may be applied to any other node and vice versa without conflict. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.

In view of the above problems, the present application discloses a method and apparatus for indicating multiple PDCCH alternative joint monitoring under multiple TRPs. It should be noted that embodiments of the user equipment and features of embodiments of the present application may be applied to a base station and vice versa without conflict. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict. Further, although the present application is primarily directed to cellular networks, the present application can also be used in internet of things as well as internet of vehicles. Further, while the present application is primarily directed to multi-carrier communications, the present application can also be used for single carrier communications. Further, while the present application is primarily directed to multi-antenna communications, the present application can also be used for single antenna communications. Further, although the present application is initially directed to a terminal and base station scenario, the present application is also applicable to a terminal and terminal, a terminal and relay, a Non-terrestrial network (NTN, non-TERRESTRIAL NETWORKS), and a communication scenario between a relay and a base station, to achieve similar technical effects in a terminal and base station scenario. Furthermore, the adoption of a unified solution for different scenarios, including but not limited to the communication scenario of the terminal and the base station, also helps to reduce hardware complexity and cost.

Further, embodiments of the present application and features of embodiments may be applied to a second node device and vice versa without conflict. In particular, the term (Terminology), noun, function, variable in the present application may be interpreted (if not specifically described) with reference to the definitions in the 3GPP specification protocols TS (Technical Specification) series, TS38 series, TS37 series.

The application discloses a method in a first node for wireless communication, comprising the following steps:

Receiving a first set of information, the first set of information being used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1;

monitoring K1 control signaling alternatives in a third time window;

Wherein the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1.

As an embodiment, the above method is characterized in that: the joint PDCCH alternatives are configured individually for each different aggregation level, i.e. the manner in which the corresponding PDCCH alternatives are joined together is different for different aggregation levels.

As an embodiment, another technical feature of the above method is that: by indicating the first time window and the second time window, the association mode between the PDCCH alternatives included in the first search space set and the PDCCH alternatives included in the second search space set is implicitly determined, so that the flexibility is ensured, and meanwhile, the signaling overhead is reduced.

According to one aspect of the present application, the X1 first type time windows respectively correspond to X1 aggregation levels, the X1 second type time windows respectively correspond to the X1 aggregation levels, and the first aggregation level is one of the X1 aggregation levels; the first time window is a first type time window corresponding to the first aggregation level in the X1 first type time windows, and the second time window is a second type time window corresponding to the first aggregation level in the X1 second type time windows.

As an embodiment, the above method is characterized in that: different time windows are respectively configured according to different aggregation levels, so that PDCCH alternatives with different aggregation levels can be realized in different association modes, and the configuration flexibility is improved.

According to one aspect of the application, the X1 first type time windows are all associated with a first set of search spaces and the X1 second type time windows are all associated with a second set of search spaces.

According to one aspect of the application, the number of monitoring times in which the K1 control signaling alternatives are counted together is equal to K2, the K2 being a positive integer greater than the K1.

As an embodiment, the above method is characterized in that: the K1 control signaling alternatives can form at least one joint control signaling alternative, thereby occupying more monitoring times.

According to one aspect of the application, the first search space set includes M1 first type control signaling alternatives in the first time window, and aggregation levels adopted by the M1 first type control signaling alternatives are all the first aggregation levels, and M1 is a positive integer greater than 1; the second search space set comprises M2 second class control signaling alternatives in the second time window, aggregation levels adopted by the M2 second class control signaling alternatives are all the first aggregation levels, and M2 is a positive integer greater than 1; the first time window is used to determine the M1 first type control signaling alternatives, the second time window is used to determine the M2 second type control signaling alternatives, and the M1 first type control signaling alternatives are associated with the M2 second type control signaling alternatives.

According to one aspect of the application, the quotient between the M1 and the M2 is used to determine the manner in which the M1 first type control signaling alternatives and the M2 second type control signaling alternatives are associated.

As an embodiment, the above method is characterized in that: and determining the association mode of the control signaling alternatives according to the number of the control signaling alternatives in the time window, thereby reducing the cost of configuration signaling.

According to one aspect of the present application, the quotient of the M1 divided by the M2 is equal to a first value, the first value being used to determine Q, the Q being a positive integer not smaller, any one of the Q first type control signaling alternatives of the M1 first type control signaling alternatives and one of the M2 second type control signaling alternatives forming a joint control signaling alternative.

According to one aspect of the application, a first information block comprises the first set of information, the first information block being used to determine the first set of search spaces; the first information set comprises X1 information units, wherein the X1 information units are respectively aimed at X1 different aggregation levels; the X1 information units are used to determine at least the X1 first-type time windows of the X1 first-type time windows or the X1 second-type time windows, respectively; the X1 different aggregation levels include the first aggregation level, and the first set of search spaces supports the X1 different aggregation levels.

According to one aspect of the application, the first set of information is used to indicate the X1 first type of time windows, which X1 first type of time windows are used to determine the X1 second type of time windows, respectively.

As an embodiment, the above method is characterized in that: and determining a second type time window implicitly through the first type time window, further determining an association mode of the control signaling alternatives, and further reducing signaling overhead.

According to one aspect of the application, it comprises:

Receiving a first signaling;

receiving a first signal;

Wherein the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

According to one aspect of the application, it comprises:

Receiving a first signaling;

transmitting a first signal;

The application discloses a method in a second node for wireless communication, comprising the following steps:

transmitting a first set of information, the first set of information being used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1;

determining K1 control signaling alternatives in a third time window;

According to one aspect of the application, it comprises:

Transmitting a first signaling;

transmitting a first signal;

According to one aspect of the application, it comprises:

Transmitting a first signaling;

receiving a first signal;

The application discloses a first node for wireless communication, comprising:

a first receiver that receives a first set of information, the first set of information being used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1;

A first transceiver monitoring K1 control signaling alternatives in a third time window;

The application discloses a second node for wireless communication, comprising:

A first transmitter that transmits a first set of information, the first set of information being used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1;

A second transceiver determining K1 control signaling alternatives in a third time window;

As an embodiment, the present application has the following advantages over the conventional scheme:

the joint PDCCH alternatives are configured individually for each different aggregation level, i.e. the way corresponding PDCCH alternatives are joined together is different for different aggregation levels;

implicitly determining a correlation mode between the PDCCH alternatives included in the first search space set and the PDCCH alternatives included in the second search space set by indicating the first time window and the second time window, thereby reducing signaling overhead while ensuring flexibility;

configuring different time windows according to different aggregation levels, so that PDCCH alternatives with different aggregation levels can adopt different association modes to improve the configuration flexibility;

Determining the association mode of the control signaling alternatives according to the number of the control signaling alternatives in the time window, thereby reducing the cost of configuration signaling;

and determining a second type time window implicitly through the first type time window, further determining an association mode of the control signaling alternative, and further reducing signaling overhead.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:

FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the application;

FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the application;

fig. 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the application;

FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the application;

FIG. 5 shows a flow diagram of a first set of information according to one embodiment of the application;

FIG. 6 shows a flow chart of a first set of information according to another embodiment of the application;

FIG. 7 shows a schematic diagram of a first set of information according to one embodiment of the application;

fig. 8 shows a schematic diagram of a first information block according to an embodiment of the application;

FIG. 9 shows a schematic diagram of X1 first type of time windows according to one embodiment of the application;

FIG. 10 shows a schematic diagram of X1 second type time windows according to one embodiment of the application;

FIG. 11 shows a schematic diagram of a first time window and a second time window according to an embodiment of the application;

FIG. 12 shows a schematic diagram of K1 control signaling alternatives according to one embodiment of the application;

Fig. 13 shows a schematic diagram of M1 first type control signaling alternatives according to an embodiment of the application;

fig. 14 shows a schematic diagram of M1 first type control signaling alternatives according to another embodiment of the application;

FIG. 15 shows a schematic diagram of a first search space and a second search space, according to one embodiment of the application;

FIG. 16 shows a schematic diagram of an application scenario according to one embodiment of the application;

Fig. 17 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the application;

Fig. 18 shows a block diagram of the processing means in the second node device according to an embodiment of the application.

Detailed Description

The technical scheme of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other.

Example 1

Embodiment 1 illustrates a process flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives a first set of information in step 101; in step 102K 1 control signaling alternatives are monitored in a third time window.

In embodiment 1, the first set of information is used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1; the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1.

As an embodiment, it is RRC signaling that carries the first set of information.

As an embodiment, the first set of information is carried by a MAC (Medium Access Control, media access Control) CE (Control Elements).

As an embodiment, the first set of information includes an IE (Information Elements, information element) SEARCHSPACE in the TS 38.331.

For one embodiment, the first set of information includes one or more fields (fields) in IE SEARCHSPACE in TS 38.331.

As an embodiment, the first set of information includes one or more fields in an IE PDCCH-Config in TS 38.331.

As an embodiment, the first set of information includes one or more fields in IE PDCCH-ConfigCommon in TS 38.331.

As an embodiment, the first set of information is used to configure a first set of search spaces comprising M1 control signaling alternatives in the first time window, the first control signaling alternative being one of the M1 control signaling alternatives; the M1 control signaling alternatives all adopt the first aggregation level.

As an embodiment, the first set of information is used to indicate a first identity, which is one SEARCHSPACEID.

As a sub-embodiment of the two embodiments, the first identification is used to identify the first set of search spaces.

As an embodiment, the first set of information is used to indicate a second identity, which is one SEARCHSPACEID.

As a sub-embodiment of this embodiment, the second identification is used to identify a second set of search spaces comprising M2 control signaling alternatives in the second time window, the second control signaling alternative being one of the M2 control signaling alternatives; the M2 control signaling alternatives all employ the first aggregation level.

As an embodiment, the first set of information is used to indicate a number of PDCCH monitoring occasions (Monitoring Occasion) comprised by any one of the X1 first type time windows.

As an embodiment, the first set of information is used to indicate the duration of any one of the X1 first type of time windows in the time domain.

As an embodiment, the first set of information is used to indicate a period of any one of the X1 first type of time windows in the time domain.

As an embodiment, the first set of information is used to indicate the number of time slots that any one of the X1 time windows of the first type includes to be monitored for control signaling alternatives.

As an embodiment, the first set of information is used to indicate a period of time slots included in any one of the X1 first type of time windows that require monitoring of control signaling alternatives.

As an embodiment, the first set of information is used to indicate an offset of a time slot included in any one of the X1 first type time windows that needs to be monitored for a control signaling alternative.

As an embodiment, any one of the K1 control signaling alternatives is one PDCCH CANDIDATE.

As an embodiment, any one of the K1 Control signaling alternatives is a PSCCH (PHYSICAL SIDELINK Control Channel ) CANDIDATE.

As an embodiment, the control signaling alternative in the present application is one PDCCH CANDIDATE.

As an embodiment, the control signaling alternative in the present application is one PSCCH CANDIDATE.

As an embodiment, any one of the K1 control signaling alternatives occupies a positive integer number of CCEs.

As an embodiment, any one of the K1 control signaling alternatives occupies a positive integer number of REs (Resource Elements ) greater than 1.

As an embodiment, the demodulation reference signal comprised by the first control signaling alternative and the demodulation reference signal comprised by the second control signaling alternative are non-QCL (Quasi Co-located).

As an embodiment, the first control signaling alternative and the second control signaling alternative are transmitted by two TRPs (transmitting receiving nodes), respectively.

As an embodiment, the first control signaling alternative and the second control signaling alternative correspond to different TCIs, respectively.

As an embodiment, the first control signaling alternative and the second control signaling alternative correspond to different TCI states (states), respectively.

As an embodiment, the first control signaling alternative and the second control signaling alternative correspond to different TCI-states, respectively.

As an embodiment, the first control signaling alternative and the second control signaling alternative correspond to different TCIs-StateID, respectively.

As an embodiment, the time-frequency resources occupied by the first control signaling alternative belong to a first control resource set, the time-frequency resources occupied by the second control signaling alternative belong to a second control resource set, the first control resource set belongs to a first control resource set pool, the second control resource set belongs to a second control resource set pool, and the first control resource set pool and the second control resource set pool are different.

As a sub-embodiment of this embodiment, the first control resource set pool and the second control resource set pool each employ a different coresetpoolIndex.

As an embodiment, the phrase that the meaning of the association between the first control signaling alternative and the second control signaling alternative includes: the first control signaling alternative and the second control signaling alternative can be Combined into one Combined (Combined) control signaling alternative.

As an embodiment, the phrase that the meaning of the association between the first control signaling alternative and the second control signaling alternative includes: the first control signaling alternative and the second control signaling alternative together are counted for a number of monitoring greater than 2.

As an embodiment, the phrase that the meaning of the association between the first control signaling alternative and the second control signaling alternative includes: the first control signaling alternative and the second control signaling alternative together are counted for a number of monitoring equal to 3.

As a sub-embodiment of this embodiment, the first control signaling alternative is counted as a monitoring, the second control signaling alternative is counted as a monitoring, and the combined control signaling alternatives of the first control signaling alternative and the second control signaling alternative are counted as a monitoring.

As an embodiment, the phrase that the meaning of the association between the first control signaling alternative and the second control signaling alternative includes: the number of monitoring times that the first control signaling alternative and the second control signaling alternative are counted together is equal to 2, and the second control signaling alternative is not counted separately for one monitoring.

As a sub-embodiment of this embodiment, the first control signaling alternative is counted in one monitoring and the combined control signaling alternative of the first control signaling alternative and the second control signaling alternative is counted in one monitoring.

As an embodiment, the first time window comprises T1 time slots, only one time slot of the T1 time slots needs to monitor for a control signaling alternative, and the T1 is a positive integer greater than 1.

As an embodiment, the first time window includes T1 time slots, at least 2 time slots of the T1 time slots need to monitor for control signaling alternatives, and the T1 is a positive integer greater than 1.

As an embodiment, the second time window comprises T2 time slots, only one time slot of the T2 time slots needs to monitor for a control signaling alternative, and the T2 is a positive integer greater than 1.

As an embodiment, the second time window includes T2 time slots, at least 2 time slots of the T2 time slots need to monitor for control signaling alternatives, and T2 is a positive integer greater than 1.

As an embodiment, at least two first type time windows of the X1 first type time windows overlap in the time domain.

As an embodiment, there is at least one time domain resource occupied by two first type time windows in the X1 first type time windows simultaneously.

As an embodiment, at least two second type time windows of the X1 second type time windows overlap in the time domain.

As an embodiment, there is at least one time domain resource occupied by one OFDM symbol belonging to two second type time windows of the X1 second type time windows at the same time.

As one embodiment, the first set of information is used to indicate that the first set of search spaces and the second set of search spaces are associated.

As an embodiment, the meaning that the first set of search spaces and the second set of search spaces are different from each other includes: SEARCHSPACEID employed by the first set of search spaces is a first identification and SEARCHSPACEID employed by the second set of search spaces is a second identification, the first identification and the second identification being different.

As an embodiment, the meaning that the first set of search spaces and the second set of search spaces are different from each other includes: the first set of search spaces is associated with a first set of control resources and the second set of search spaces is associated with a second set of control resources, the frequency domain resources occupied by the first set of control resources being different from the frequency domain resources occupied by the second set of control resources.

As an embodiment, the meaning that the first set of search spaces and the second set of search spaces are different from each other includes: the first set of search spaces is associated with a first set of control resources and the second set of search spaces is associated with a second set of control resources, the first set of control resources employing a control resource set identification (ControlResourceSetId) different from the second set of control resources employing a control resource set identification.

As an embodiment, the meaning that the first set of search spaces and the second set of search spaces are different from each other includes: the time domain resources occupied by the first set of search spaces are different from the time domain resources occupied by the second set of search spaces.

As an embodiment, the meaning that the first set of search spaces and the second set of search spaces are different from each other includes: the DCI formats supported by the first set of search spaces are different from the DCI formats supported by the second set of search spaces.

As an embodiment, the first aggregation level is equal to one of 1,2, 4, 8 or 16.

As an embodiment, the first control signaling alternatively occupies the first aggregation level number of CCEs.

As an embodiment, the second control signaling alternatively occupies the first aggregation level number of CCEs.

As an embodiment, the determining the meaning of the first time window and the second time window from the X1 first time windows and the X1 second time windows respectively includes: the X1 first type time windows respectively correspond to X1 aggregation levels, and the X1 second type time windows respectively correspond to the X1 aggregation levels; the first aggregation level is one of the X1 aggregation levels, the first time window is a first type time window corresponding to the first aggregation level in the X1 first type time windows, and the second time window is a second type time window corresponding to the first aggregation level in the X1 second type time windows.

As an embodiment, the first control signaling alternative and the second control signaling alternative form a joint control signaling alternative.

As an embodiment, the DCI carried by the first control signaling alternative and the DCI carried by the second control signaling alternative adopt the same DCI Format (Format).

As an embodiment, the SCI (Sidelink Control Information ) carried by the first control signaling alternative and the SCI carried by the second control signaling alternative are in the same SCI format.

As an embodiment, the third time window occupies a positive integer number of time slots greater than 1.

As an embodiment, the third time window occupies a time slot occupied by the first time window and a time slot occupied by the second time window.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Fig. 2 illustrates a diagram of a network architecture 200 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved PACKET SYSTEM ) 200, or some other suitable terminology. EPS 200 may include a UE (User Equipment) 201, ng-RAN (next generation radio access Network) 202, epc (Evolved Packet Core )/5G-CN (5G Core Network) 210, hss (Home Subscriber Server ) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP, or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN 210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN 210 through an S1/NG interface. EPC/5G-CN 210 includes MME (Mobility MANAGEMENT ENTITY )/AMF (Authentication management domain)/UPF (User Plane Function ) 211, other MME/AMF/UPF214, S-GW (SERVICE GATEWAY, serving Gateway) 212, and P-GW (PACKET DATE Network Gateway) 213. The MME/AMF/UPF211 is a control node that handles signaling between the UE201 and the EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW212, which S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

As an embodiment, the UE201 corresponds to the first node in the present application.

As an embodiment, the UE201 can receive PDCCHs from a plurality of TRPs at the same time.

As an embodiment, the UE201 is a terminal with the capability to monitor multiple beams simultaneously.

As an embodiment, the UE201 is a Massive-MIMO enabled terminal.

As an embodiment, the UE201 is a V2X (Vehicle-to-evaluation) enabled terminal.

As an embodiment, the gNB203 corresponds to the second node in the present application.

As an embodiment, the gNB203 can simultaneously transmit PDCCHs originating from a plurality of TRPs.

As an embodiment, the gNB203 supports multi-beam transmission.

As an embodiment, the gNB203 supports Massive-MIMO based transmission.

As an embodiment, the gNB203 includes at least two TRPs.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gNB or V2X) and a second communication node device (gNB, RSU in UE or V2X) in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device through PHY301. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (PACKET DATA Convergence Protocol ) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering the data packets, and the PDCP sublayer 304 also provides handoff support for the first communication node device to the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out of order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resouce Control, radio resource control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (SERVICE DATA Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first communication node apparatus may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the second node in the present application.

As an embodiment, PDCP304 of the second communication node device is used to generate a schedule for the first communication node device.

As one embodiment, PDCP354 of the second communication node device is used to generate a schedule for the first communication node device.

As an embodiment, the first information set in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the first information set in the present application is generated in the RRC306.

As an embodiment, the first information block in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the first information block in the present application is generated in the RRC306.

As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the first signaling in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the first signal in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the first signal in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the first signal in the present application is generated in the RRC306.

As an embodiment, the first node is a terminal.

As an embodiment, the second node is a terminal.

As an embodiment, the second node is an RSU (Road Side Unit).

As an embodiment, the second node is a Grouphead (group head).

As an embodiment, the second node is a TRP (TRANSMITTER RECEIVER Point), transmitting receiving Point.

As an embodiment, the second node is a Cell.

As an embodiment, the second node is an eNB.

As an embodiment, the second node is a base station.

As one embodiment, the second node is used to manage a plurality of TRPs.

As an embodiment, the second node is a node for managing a plurality of cells.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

The first communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

The second communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

In the transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the second communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal clusters based on various modulation schemes, e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.

In a transmission from the second communication device 410 to the first communication device 450, each receiver 454 receives a signal at the first communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.

In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.

As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the first communication device 450 to at least: first receiving a first set of information, the first set of information being used to determine X1 time windows of a first type and X1 time windows of a second type, the X1 being a positive integer greater than 1; secondly, monitoring K1 control signaling alternatives in a third time window; the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: first receiving a first set of information, the first set of information being used to determine X1 time windows of a first type and X1 time windows of a second type, the X1 being a positive integer greater than 1; secondly, monitoring K1 control signaling alternatives in a third time window; the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: firstly, a first information set is sent, wherein the first information set is used for determining X1 first type time windows and X1 second type time windows, and X1 is a positive integer greater than 1; secondly, K1 control signaling alternatives are determined in a third time window; the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: firstly, a first information set is sent, wherein the first information set is used for determining X1 first type time windows and X1 second type time windows, and X1 is a positive integer greater than 1; secondly, K1 control signaling alternatives are determined in a third time window; the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1.

As an embodiment, the first communication device 450 corresponds to a first node in the present application.

As an embodiment, the second communication device 410 corresponds to a second node in the present application.

As an embodiment, the first communication device 450 is a UE.

As an embodiment, the first communication device 450 is a terminal.

As an embodiment, the second communication device 410 is a base station.

As an embodiment, the second communication device 410 is a UE.

As an embodiment, the second communication device 410 is a network device.

As an embodiment, the second communication device 410 is a serving cell.

As an embodiment, the second communication device 410 is a TRP.

As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processors 459 are used to receive a first set of information; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controller/processors 475 are used to transmit a first set of information.

As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processor 459 are used to monitor K1 control signaling alternatives; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controller/processor 475 are used to determine K1 control signaling alternatives.

As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processors 459 are used to receive first signaling; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controller/processors 475 are used to transmit first signaling.

As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least the first four of the controller/processors 459 are used to receive a first signal; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least the first four of the controller/processors 475 are used to transmit a first signal.

As one implementation, the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, at least the first four of the controller/processor 459 are used to transmit a first signal; the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least the first four of the controller/processors 475 are used to receive a first signal.

Example 5

Embodiment 5 illustrates a flow chart of a first set of information, as shown in fig. 5. In fig. 5, the first node U1 and the second node N2 communicate via a wireless link. It is specifically explained that the order in the present embodiment is not limited to the order of signal transmission and the order of implementation in the present application.

For the first node U1, receiving a first set of information in step S10; monitoring K1 control signaling alternatives in a third time window in step S11; receiving a first signaling in step S12; the first signal is received in step S13.

For the second node N2, transmitting a first set of information in step S20; determining K1 control signaling alternatives in a third time window in step S21; transmitting a first signaling in step S22; the first signal is transmitted in step S23.

In embodiment 5, the first set of information is used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1; the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

As an embodiment, the X1 first type time windows respectively correspond to X1 aggregation levels, the X1 second type time windows respectively correspond to the X1 aggregation levels, and the first aggregation level is one of the X1 aggregation levels; the first time window is a first type time window corresponding to the first aggregation level in the X1 first type time windows, and the second time window is a second type time window corresponding to the first aggregation level in the X1 second type time windows.

As one embodiment, any one of the X1 aggregation levels is equal to one of 1,2, 4, 8, 16, or 32.

As an embodiment, said X1 is equal to one of 2, 3,4, 5 or 6.

As one embodiment, the X1 first type time windows are all associated with a first set of search spaces and the X1 second type time windows are all associated with a second set of search spaces.

As a sub-embodiment of this embodiment, the first set of search spaces includes Y1 time slots in the time domain for which monitoring control signaling is desired, where Y1 is a positive integer greater than 1, and one of the X1 first type time windows includes Z1 time slots adjacent in the time domain from among the Y1 time slots, and Z1 is a positive integer not greater than Y1.

As a sub-embodiment of this embodiment, the second set of search spaces includes Y2 time slots in the time domain for which monitoring control signaling is desired, where Y2 is a positive integer greater than 1, and one of the X1 second type time windows includes Z2 time slots adjacent in the time domain from among the Y2 time slots, and Z2 is a positive integer not greater than Y2.

As a sub-embodiment of this embodiment, the meaning that all X1 time windows of the first class of the sentence are associated with the first set of search spaces includes: the number of time slots, included in any one of the X1 first type time windows, of which the monitoring control signaling is required to be replaced is related to the configuration of the first search space set.

As a sub-embodiment of this embodiment, the meaning that all X1 time windows of the first class of the sentence are associated with the first set of search spaces includes: the monitoring slot period and offset (MonitoringSlotPeriodicityAndOffset) employed by the first set of search spaces is used to determine the number of slots included in any one of the X1 first type of time windows that require monitoring control signaling alternatives.

As a sub-embodiment of this embodiment, the meaning that all X1 second class time windows of the sentence are associated with the second set of search spaces includes: the number of time slots, which are included in any one of the X1 second type time windows and need to monitor control signaling alternatives, is related to the configuration of the second search space set.

As a sub-embodiment of this embodiment, the meaning that all X1 second class time windows of the sentence are associated with the second set of search spaces includes: the monitoring slot period and offset (MonitoringSlotPeriodicityAndOffset) employed by the second set of search spaces is used to determine the number of slots included in any one of the X1 second type time windows that require monitoring control signaling alternatives.

As a sub-embodiment of this embodiment, the first set of search spaces and the second set of search spaces are associated to two different CORESET, respectively.

As a sub-embodiment of this embodiment, the first set of search spaces and the second set of search spaces are associated to two different CORESET Pool, respectively.

As an embodiment, the number of monitoring times of the K1 control signaling alternatives is counted together is equal to K2, where K2 is a positive integer greater than K1.

As an embodiment, the K1 control signaling alternatives include M1 first type control signaling alternatives, and any one of the M1 first type control signaling alternatives belongs to the first search space set; the K1 control signaling alternatives comprise M2 second-type control signaling alternatives, and any one of the M2 second-type control signaling alternatives belongs to the second search space set; both M1 and M2 are positive integers less than K1 and greater than 1.

As a sub-embodiment of this embodiment, any one of the M1 first type of control signaling alternatives adopts the first aggregation level, and any one of the M2 second type of control signaling alternatives adopts the first aggregation level.

As a sub-embodiment of this embodiment, any one of the M1 first type of control signaling alternatives is a separate control signaling alternative.

As a sub-embodiment of this embodiment, any one of the M2 second type control signaling alternatives is a separate control signaling alternative.

As a sub-embodiment of this embodiment, the sum of said M1 and said M2 is equal to said K1.

As a sub-embodiment of this embodiment, one of the M1 first type of control signaling alternatives and one of the M2 second type of control signaling alternatives form a joint control signaling alternative.

As a sub-embodiment of this embodiment, said M1 is equal to said M2, the sum of said M1 and said M2 is equal to said K1, and said K2 is equal to the product of said M1 and 3.

As a sub-embodiment of this embodiment, said M1 is equal to said M2, the sum of said M1 and said M2 is equal to said K1, and said K2 is greater than said K1.

As an embodiment, the first search space set includes M1 first type control signaling alternatives in the first time window, and aggregation levels adopted by the M1 first type control signaling alternatives are all the first aggregation levels, where M1 is a positive integer greater than 1; the second search space set comprises M2 second class control signaling alternatives in the second time window, aggregation levels adopted by the M2 second class control signaling alternatives are all the first aggregation levels, and M2 is a positive integer greater than 1; the first time window is used to determine the M1 first type control signaling alternatives, the second time window is used to determine the M2 second type control signaling alternatives, and the M1 first type control signaling alternatives are associated with the M2 second type control signaling alternatives.

As a sub-embodiment of this embodiment, the meaning of the sentence "the M1 first type of control signaling alternatives are associated with the M2 second type of control signaling alternatives" includes: any one of the M1 first type control signaling alternatives and one of the M2 second type control signaling alternatives form a joint control signaling alternative.

As a sub-embodiment of this embodiment, the meaning of the sentence "the M1 first type of control signaling alternatives are associated with the M2 second type of control signaling alternatives" includes: one first type control signaling alternative of the M1 first type control signaling alternatives and any second type control signaling alternative of the M2 second type control signaling alternatives form a joint control signaling alternative.

As a sub-embodiment of this embodiment, the meaning of the sentence "the M1 first type of control signaling alternatives are associated with the M2 second type of control signaling alternatives" includes: the M1 first type control signaling alternatives are sequentially ordered, the M2 second type control signaling alternatives are sequentially ordered, and the M1 first type control signaling alternatives are sequentially associated with the M1 second type control signaling alternatives in the M2 second type control signaling alternatives; the M2 is not smaller than the M1.

As a sub-embodiment of this embodiment, the meaning of the sentence "the M1 first type of control signaling alternatives are associated with the M2 second type of control signaling alternatives" includes: the M1 first type control signaling alternatives are sequentially ordered, the M2 second type control signaling alternatives are sequentially ordered, and the M2 second type control signaling alternatives are sequentially associated with the M2 first type control signaling alternatives in the M1 first type control signaling alternatives; the M1 is not smaller than the M2.

As a sub-embodiment of this embodiment, when a first type of control signaling alternative in the present application is associated with a second type of control signaling alternative in the present application, the associated first type of control signaling alternative and second type of control signaling alternative form a joint control signaling alternative.

As a sub-embodiment of this embodiment, the M1 first type of control signaling alternatives and the M2 second type of control signaling alternatives are associated in a manner related to the first time window and the second time window.

As a sub-embodiment of this embodiment, the M1 first type of control signaling alternatives and the M2 second type of control signaling alternatives are associated in a manner related to the number of time slots of the first time window included in the time domain in which the control signaling alternatives need to be monitored, and the number of time slots of the second time window included in the time domain in which the control signaling alternatives need to be monitored.

As an embodiment, the quotient between the M1 and the M2 is used to determine the manner in which the M1 first type control signaling alternatives and the M2 second type control signaling alternatives are associated.

As an embodiment, the M1 is greater than the M2, and a quotient of the dividing of the M1 by the M2 is equal to a first value, the first value being used to determine Q, the Q being a positive integer not less, any one of the Q first type control signaling alternatives of the M1 first type control signaling alternatives and one of the M2 second type control signaling alternatives forming a joint control signaling alternative.

As a sub-embodiment of this embodiment, the one joint control signaling alternative counts into one monitoring.

As a sub-embodiment of this embodiment, the Q is a maximum positive integer not greater than the first value.

As a sub-embodiment of this embodiment, the Q is a minimum positive integer not less than the first value.

As a sub-embodiment of this embodiment, the M1 first type control signaling alternatives are sequentially ordered, and the M1 first type control signaling alternatives are sequentially divided into M2 first type control signaling alternative groups, the M2 first type control signaling alternative groups being sequentially associated with the M2 second type control signaling alternatives; any one of the M2 first-type control signaling alternative groups includes Q first-type control signaling alternatives.

As an subsidiary embodiment of this sub-embodiment, a given first type of control signaling alternative group is any one of the M2 first type of control signaling alternative groups, the given first type of control signaling alternative group being associated with a given second type of control signaling alternative of the M2 second type of control signaling alternatives, any one of the given first type of control signaling alternative groups being associated with the given second type of control signaling alternative.

As an example of this subordinate embodiment, any one of the given set of first type control signaling alternatives and the given second type control signaling alternative constitute a joint control signaling alternative.

As one embodiment, a first information block comprises the first set of information, the first information block being used to determine the first set of search spaces; the first information set comprises X1 information units, wherein the X1 information units are respectively aimed at X1 different aggregation levels; the X1 information units are used to determine at least the X1 first-type time windows of the X1 first-type time windows or the X1 second-type time windows, respectively; the X1 different aggregation levels include the first aggregation level, and the first set of search spaces supports the X1 different aggregation levels.

As a sub-embodiment of this embodiment, the first information block is an RRC signaling.

As a sub-embodiment of this embodiment, the first information block comprises IE SEARCHSPACE in TS 38.331.

As a sub-embodiment of this embodiment, the first information block includes one or more fields (fields) in IE SEARCHSPACE in TS 38.331.

As a sub-embodiment of this embodiment, the first information block includes one or more fields in the IE PDCCH-Config in TS 38.331.

As a sub-embodiment of this embodiment, the first information block includes one or more fields in an IE PDCCH-Config command in TS 38.331.

As a sub-embodiment of this embodiment, the first information block is used to indicate SEARCHSPACEID of the first set of search spaces.

As a sub-embodiment of this embodiment, the first information block is used to indicate SEARCHSPACEID of the second set of search spaces.

As a sub-embodiment of this embodiment, the first set of information is one IE in the first information block.

As a sub-embodiment of this embodiment, the X1 information units are X1 fields in the first set of information, respectively.

As an embodiment, the first set of information is used to indicate the X1 first type of time windows, which X1 first type of time windows are used to determine the X1 second type of time windows, respectively.

As a sub-embodiment of this embodiment, the meaning of the phrase "the X1 first type time windows are used to determine the X1 second type time windows, respectively" includes: a given first type of time window is any one of the X1 first type of time windows, the given first type of time window corresponding to a given aggregation level of the X1 aggregation levels, a duration of the given first type of time window in the time domain being used to determine a duration of a given second type of time window in the time domain, the given second type of time window being a second type of time window of the X1 second type of time windows determined by the given first type of time window.

As a sub-embodiment of this embodiment, the meaning of the phrase "the X1 first type time windows are used to determine the X1 second type time windows, respectively" includes: a given first type of time window is any one of the X1 first type of time windows, the given first type of time window corresponds to a given aggregation level of the X1 aggregation levels, the number of time slots included in the given first type of time window that need to monitor control signaling alternatives is used to determine a duration of a given second type of time window in the time domain, the given second type of time window being a second type of time window of the X1 second type of time windows determined by the given first type of time window.

As a sub-embodiment of this embodiment, the meaning of the phrase "the X1 first type time windows are used to determine the X1 second type time windows, respectively" includes: a given first type time window is any first type time window in the X1 first type time windows, the given first type time window corresponds to a given aggregation level in the X1 aggregation levels, the number of time slots, included in the given first type time window, of which the need to monitor control signaling alternatives is the same as the number of time slots, included in the given second type time window, of which the second type time window is determined by the given first type time window in the X1 second type time windows.

As a sub-embodiment of this embodiment, the meaning of the phrase "the X1 first type time windows are used to determine the X1 second type time windows, respectively" includes: a given first type of time window is any one of the X1 first type of time windows, the given first type of time window corresponds to a given second type of time window of the X1 second type of time windows, the given first type of time window corresponds to a given aggregation level of the X1 aggregation levels, and the number of first type of control signaling alternatives employing the given aggregation level included in the given first type of time window is the same as the number of second type of control signaling alternatives employing the given aggregation level included in the given second type of time window.

As an embodiment, the first type of control signaling alternative in the present application is one PDCCH CANDIDATE.

As an embodiment, the second type of control signaling alternative in the present application is one PDCCH CANDIDATE.

As an embodiment, the first signaling is a DCI.

As an embodiment, the first signaling is a SCI.

As an embodiment, the first signaling is used to indicate time domain resources occupied by the first signal.

As an embodiment, the first signaling is used to indicate frequency domain resources occupied by the first signal.

As an embodiment, the first signaling is used to indicate HARQ (Hybrid Automatic Repeat reQuest ) process numbers employed by the first signal.

As one embodiment, the first signaling is used to indicate the MCS (Modulation and Coding Scheme ) employed by the first signal.

As an embodiment, the first signaling is used to indicate an RV (Redundancy Version ) employed by the first signal.

As an embodiment, the physical layer channel carrying the first signaling comprises PDCCH.

As an embodiment, the physical layer channel carrying the first signaling comprises a PSCCH.

As an embodiment, the first signaling is a downlink grant.

As an embodiment, the first signal is a wireless signal or the first signal is a baseband signal.

As an embodiment, the physical layer channel carrying the first signal includes PDSCH (Physical Downlink SHARED CHANNEL ).

As an embodiment, the physical layer channel carrying the first signaling includes a PSSCH (PHYSICAL SIDELINK SHARED CHANNEL ).

As an embodiment, the transport channel carrying the first signal includes DL-SCH (Downlink SHARED CHANNEL ).

As an embodiment, the transport channel carrying the first signaling comprises a SL-SCH (SIDELINK SHARED CHANNEL ).

As one embodiment, the phrase above to determine the meaning of K1 control signaling alternatives includes: and determining the positions of the time-frequency resources occupied by the K1 control signaling alternatives respectively.

As one embodiment, the phrase above to determine the meaning of K1 control signaling alternatives includes: and determining the positions of REs occupied by the K1 control signaling alternatives respectively.

As one embodiment, the phrase above to determine the meaning of K1 control signaling alternatives includes: and determining the aggregation level adopted by the K1 control signaling alternatives.

As one embodiment, the phrase above to determine the meaning of K1 control signaling alternatives includes: when two independent control signaling alternatives in the K1 control signaling alternatives form a joint control signaling alternative, the second node N2 determines a position of a time-frequency resource occupied by the joint control signaling alternative.

As one embodiment, the phrase above to determine the meaning of K1 control signaling alternatives includes: when two independent control signaling alternatives of the K1 control signaling alternatives form a joint control signaling alternative, the second node N2 determines the location of REs occupied by the joint control signaling alternative.

Example 6

Embodiment 6 illustrates another flow chart of the first set of information, as shown in fig. 6. In fig. 6, the first node U3 and the second node N4 communicate via a wireless link. It is specifically explained that the order in the present embodiment is not limited to the order of signal transmission and the order of implementation in the present application. Without conflict, the embodiments, sub-embodiments, subsidiary embodiments and examples of embodiment 5 can be used for embodiment 6; likewise, without conflict, the embodiments, sub-embodiments and sub-embodiments of embodiment 6 can be used for embodiment 5.

For the first node U3, receiving a first set of information in step S30; monitoring K1 control signaling alternatives in a third time window in step S31; receiving a first signaling in step S32; the first signal is transmitted in step S33.

For the second node N4, transmitting a first set of information in step S40; determining K1 control signaling alternatives in a third time window in step S41; transmitting a first signaling in step S42; the first signal is received in step S43.

In embodiment 6, the first set of information is used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1; the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

As an embodiment, the first signaling is an uplink grant.

As an embodiment, the Physical layer channel carrying the first signal includes PUSCH (Physical Uplink SHARED CHANNEL ).

As an embodiment, the transport channel carrying the first signal includes an UL-SCH (Uplink SHARED CHANNEL), uplink shared channel.

Example 7

Embodiment 7 illustrates a schematic diagram of a first set of information, as shown in fig. 7. In fig. 7, the first information set includes X1 information units; the thick line boxes in the figure correspond to the first information set; information element #1 to information element #x1 marked in the figure correspond to the X1 information elements, respectively.

As an embodiment, the first set of information comprises information units other than the X1 information units.

As an embodiment, the X1 information elements are fields in X1 RRC IEs, respectively.

As an embodiment, the X1 information units are all for one DCI format.

As an embodiment, the X1 information units are used to indicate the X1 time windows of the first type, respectively.

As a sub-embodiment of this embodiment, the X1 information units are used to indicate the duration of the X1 time windows of the first type in the time domain, respectively.

As a sub-embodiment of this embodiment, the X1 information units are used to indicate the number of time slots respectively comprised by the X1 time windows of the first type.

As a sub-embodiment of this embodiment, the X1 information units are used to indicate the number of time slots, respectively, of the X1 time windows of the first type, which need to be monitored for control signaling alternatives.

As an embodiment, the X1 information units are used to indicate the X1 second type time windows, respectively.

As a sub-embodiment of this embodiment, the X1 information units are used to indicate the duration of the X1 second type time windows in the time domain, respectively.

As a sub-embodiment of this embodiment, the X1 information units are used to indicate the number of time slots respectively comprised by the X1 time windows of the second type.

As a sub-embodiment of this embodiment, the X1 information units are used to indicate the number of time slots, respectively, of the X1 second type time windows, which need to be monitored for control signaling alternatives.

Example 8

Embodiment 8 illustrates a schematic diagram of a first information block, as shown in fig. 8. In fig. 8, the first information block includes a first set of information, and the first information block includes a second set of information; the thick line box in the figure corresponds to the first information block; the thin line boxes in the figure correspond to the first set of information and the second set of information.

As an embodiment, the first information set is used to indicate a first DCI format, and any one of the K1 control signaling alternatives adopts the first DCI format.

As an embodiment, the second set of information is used to indicate a second DCI format, any one of the K1 control signaling alternatives employing the second DCI format.

As a sub-embodiment of the above two embodiments, the first DCI format and the second DCI format are different.

Example 9

Example 9 illustrates a schematic diagram of X1 time windows of the first type, as shown in fig. 9. In fig. 9, the time domain resources occupied by any one of the X1 first type time windows are consecutive; the X1 first type time windows are associated to the first set of search spaces in the present application; the first type time window #1 to the first type time window #x1 in the figure correspond to the X1 first type time windows, respectively.

As an embodiment, at least one first type time window of the X1 first type time windows occupies only one time slot in the time domain.

As an embodiment, at least one first type time window of the X1 first type time windows occupies a plurality of time slots in the time domain.

As an embodiment, at least one first type time window of the X1 first type time windows is orthogonal to one second type time window of the X1 second type time windows in the time domain.

As an embodiment, any one of the X1 first-class time windows is orthogonal to any one of the X1 second-class time windows in the time domain.

As an embodiment, the X1 first type time windows are identical at the start time of the time domain.

As an embodiment, the X1 first type time windows are identical at the truncated instants in the time domain.

As an embodiment, the number of time slots occupied by at least one first type time window in the X1 first type time windows is different from the number of time slots occupied by one second type time window in the X1 second type time windows.

Example 10

Embodiment 10 illustrates a schematic diagram of X1 time windows of the second type, as shown in fig. 10. In fig. 10, the time domain resources occupied by any one of the X1 first type time windows are consecutive; the X1 second type time windows are associated with the second set of search spaces in the present application.

As an embodiment, at least one second type time window of the X1 second type time windows occupies only one time slot in the time domain.

As an embodiment, at least one second type time window of the X1 second type time windows occupies a plurality of time slots in the time domain.

As an embodiment, the X1 second type time windows are identical at the start time of the time domain.

As an embodiment, the X1 second type time windows are identical at the time-domain deadlines.

Example 11

Embodiment 11 illustrates a schematic diagram of a first time window and a second time window, as shown in fig. 11. In fig. 11, the first time window and the second time window are associated.

As an embodiment, the time domain resources occupied by the first time window and the time domain resources occupied by the second time window are orthogonal in time domain.

As an embodiment, the control signaling alternatives in the first time window and the second time window are jointly monitored.

As an embodiment, the number of time slots occupied by the first time window is different from the number of time slots occupied by the second time window.

As an embodiment, the number of time slots occupied by the first time window is the same as the number of time slots occupied by the second time window.

Example 12

Embodiment 12 illustrates a schematic diagram of K1 control signaling alternatives, as shown in fig. 12. In fig. 12, there are M1 first type control signaling alternatives among the K1 control signaling alternatives, where the M1 first type control signaling alternatives belong to the first search space set of the present application; m2 second-class control signaling alternatives exist in the K1 control signaling alternatives, and the M2 second-class control signaling alternatives belong to a second search space set of the application; one of the M1 first type of control signaling alternatives and one of the M2 second type of control signaling alternatives are formed into a joint control signaling alternative. The rectangle filled with oblique lines in the figure is the M1 first type control signaling alternatives, the rectangle filled with square lines in the figure is the M2 second type control signaling alternatives, and the dotted line box part in the figure is the combined control signaling alternatives.

Example 13

Embodiment 13 illustrates a schematic diagram of M1 first type control signaling alternatives, as shown in fig. 13. The M1 first type control signaling alternatives are sequentially associated with M1 second type control signaling alternatives in the M2 second type control signaling alternatives, M2 is larger than M1, the M2 second type control signaling alternatives are not associated with the second type control signaling alternatives except the M1 second type control signaling alternatives. The rectangle filled with oblique lines in the figure is the M1 first type control signaling alternatives, and the rectangle filled with square lines in the figure is the M2 second type control signaling alternatives; the connection line between the first type control signaling alternatives and the second type control signaling alternatives is associated in the figure.

Example 14

Embodiment 14 illustrates another schematic diagram of M1 first type control signaling alternatives, as shown in fig. 14. The M1 first type control signaling alternatives are divided into M2 first type control signaling alternative groups in turn, wherein M1 is Q times of M2, and Q is a positive integer greater than 1; any one of the M2 first-type control signaling alternatives comprises Q first-type control signaling alternatives, and the M2 first-type control signaling alternatives are respectively associated with the M2 second-type control signaling alternatives. The rectangle filled with oblique lines in the figure is the M1 first type control signaling alternatives, and the rectangle filled with square lines in the figure is the M2 second type control signaling alternatives; the connection line between the first type control signaling alternatives and the second type control signaling alternatives is associated in the figure.

As an embodiment, the given first type of control signaling alternative group is any one of the M2 first type of control signaling alternative groups, the given first type of control signaling alternative group being associated to a given second type of control signaling alternative of the M2 second type of control signaling alternatives; any first type of control signaling alternatives included in the given set of first type of control signaling alternatives are associated with the given second type of control signaling alternatives.

Example 15

Embodiment 15 illustrates a schematic diagram of a first search space and a second search space, as shown in fig. 15. In fig. 15, the time-frequency resources occupied by the first set of search spaces and the time-frequency resources occupied by the second set of search spaces are orthogonal.

As an embodiment, REs (Resource Elements, resource units) occupied by the first set of search spaces and REs occupied by the second set of search spaces belong to two different CORESET, respectively.

As an embodiment, the REs occupied by the first set of search spaces and the REs occupied by the second set of search spaces belong to two different CORESET Pool, respectively.

As one embodiment, the first set of search spaces and the second set of search spaces occupy the same number of REs.

As an embodiment, the frequency domain resources occupied by the first set of search spaces and the frequency domain resources occupied by the second set of search spaces are orthogonal in the frequency domain.

As an embodiment, the time domain resources occupied by the first set of search spaces and the time domain resources occupied by the second set of search spaces are orthogonal in the time domain.

Example 16

Embodiment 16 illustrates a schematic diagram of an application scenario, as shown in fig. 16. In fig. 16, a first set of control resources and the second set of control resources are respectively configured to a first TRP and a second TRP of a first cell, and the first node receives PDCCHs from both TRPs at the same time; the first set of search spaces is associated with the first set of control resources and the second set of search spaces is associated with the second set of control resources.

As one embodiment, the first TRP and the second TRP respectively employ two different CORESET Pool Index.

As one embodiment, the first TRP and the second TRP are connected by an X2 interface.

As one embodiment, there is a space between the first TRP and the second TRP.

Example 17

Embodiment 17 illustrates a block diagram of the structure in a first node, as shown in fig. 17. In fig. 17, the first node 1700 includes a first receiver 1701 and a first transceiver 1702.

A first receiver 1701 that receives a first set of information, the first set of information being used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1;

the first transceiver 1702 monitoring K1 control signaling alternatives in a third time window;

in embodiment 17, the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1.

For one embodiment, the first transceiver 1702 receives a first signaling and the first transceiver 1702 receives a first signal; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

For one embodiment, the first transceiver 1702 receives a first signaling and the first transceiver 1702 sends a first signal; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

As an embodiment, the first receiver 1701 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 in embodiment 4.

As one embodiment, the first transceiver 1702 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of embodiment 4.

Example 18

Embodiment 18 illustrates a block diagram of the structure in a second node, as shown in fig. 18. In fig. 18, the second node 1800 includes a first transmitter 1801 and a second transceiver 1802.

A first transmitter 1801 that transmits a first set of information, the first set of information being used to determine X1 first type time windows and X1 second type time windows, the X1 being a positive integer greater than 1;

a second transceiver 1802, determining K1 control signaling alternatives in a third time window;

In embodiment 18, the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1.

As one embodiment, the second transceiver 1802 transmits a first signaling, and the second transceiver 1802 transmits a first signal; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

As one embodiment, the second transceiver 1802 transmits first signaling, and the second transceiver 1802 receives first signals; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

As one example, the first transmitter 1801 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of example 4.

As one example, the second transceiver 1802 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the multi-antenna receive processor 472, the transmit processor 416, the receive processor 470, and the controller/processor 475 of example 4.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The first node in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, a vehicle, an RSU, an aircraft, an airplane, an unmanned plane, a remote control airplane, and other wireless communication devices. The second node in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a small cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission receiving node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, an RSU, a drone, a test device, a transceiver device or a signaling tester for example, which simulates a function of a part of a base station, and the like.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A first node for use in wireless communications, comprising:

Wherein the first control signaling alternative is one of the K1 control signaling alternatives, the second control signaling alternative is one of the K1 control signaling alternatives, and the K1 is a positive integer greater than 1; the aggregation levels adopted by the first control signaling alternative and the second control signaling alternative are both first aggregation levels, and the first control signaling alternative and the second control signaling alternative are associated; the time domain resource occupied by the first control signaling alternative belongs to a first time window, the first time window is one of the X1 first type time windows, and the first control signaling alternative belongs to a first search space set; the time domain resource occupied by the second control signaling alternative belongs to a second time window, the second time window is one of the X1 second type time windows, and the second control signaling alternative belongs to a second search space set; the first set of search spaces and the second set of search spaces are different, the third time window comprising the first time window and the second time window; the first aggregation level is used to determine the first and second time windows from the X1 first-type time windows and the X1 second-type time windows, respectively; the X1 is a positive integer greater than 1; the X1 first type time windows respectively correspond to X1 aggregation levels, the X1 second type time windows respectively correspond to the X1 aggregation levels, and the first aggregation level is one of the X1 aggregation levels; the first time window is a first type time window corresponding to the first aggregation level in the X1 first type time windows, and the second time window is a second type time window corresponding to the first aggregation level in the X1 second type time windows.

2. The first node of claim 1, wherein the X1 first type time windows are all associated with a first set of search spaces and the X1 second type time windows are all associated with a second set of search spaces.

3. The first node according to claim 1 or 2, characterized in that the number of monitoring times for which the K1 control signaling alternatives are counted together is equal to K2, the K2 being a positive integer greater than the K1.

4. The first node according to claim 1 or 2, wherein the first set of search spaces comprises M1 first type of control signaling alternatives in the first time window, and wherein aggregation levels employed by the M1 first type of control signaling alternatives are all the first aggregation levels, the M1 being a positive integer greater than 1; the second search space set comprises M2 second class control signaling alternatives in the second time window, aggregation levels adopted by the M2 second class control signaling alternatives are all the first aggregation levels, and M2 is a positive integer greater than 1; the first time window is used to determine the M1 first type control signaling alternatives, the second time window is used to determine the M2 second type control signaling alternatives, and the M1 first type control signaling alternatives are associated with the M2 second type control signaling alternatives.

5. The first node of claim 4, wherein a quotient between the M1 and the M2 is used to determine a manner in which the M1 first type of control signaling alternatives and the M2 second type of control signaling alternatives are associated.

6. The first node of claim 1 or 2, wherein a first information block comprises the first set of information, the first information block being used to determine the first set of search spaces; the first information set comprises X1 information units, wherein the X1 information units are respectively aimed at X1 different aggregation levels; the X1 information units are used to determine at least the X1 first-type time windows of the X1 first-type time windows or the X1 second-type time windows, respectively; the X1 different aggregation levels include the first aggregation level, and the first set of search spaces supports the X1 different aggregation levels.

7. The first node according to claim 1 or 2, wherein the first set of information is used to indicate the X1 first type of time windows, which X1 first type of time windows are used to determine the X1 second type of time windows, respectively.

8. The first node of claim 1 or 2, wherein the first transceiver receives first signaling and the first transceiver operates on first signals; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal; the operation is a reception or the operation is a transmission.

9. A second node for use in wireless communications, comprising:

10. The second node of claim 9, wherein the X1 first type time windows are all associated with a first set of search spaces and the X1 second type time windows are all associated with a second set of search spaces.

11. The second node according to claim 9 or 10, characterized in that the number of monitoring times for which the K1 control signaling alternatives are counted together is equal to K2, the K2 being a positive integer greater than the K1.

12. The second node according to claim 9 or 10, wherein the first set of search spaces comprises M1 first type of control signaling alternatives in the first time window, and wherein aggregation levels employed by the M1 first type of control signaling alternatives are all the first aggregation levels, the M1 being a positive integer greater than 1; the second search space set comprises M2 second class control signaling alternatives in the second time window, aggregation levels adopted by the M2 second class control signaling alternatives are all the first aggregation levels, and M2 is a positive integer greater than 1; the first time window is used to determine the M1 first type control signaling alternatives, the second time window is used to determine the M2 second type control signaling alternatives, and the M1 first type control signaling alternatives are associated with the M2 second type control signaling alternatives.

13. The second node according to claim 12, characterized in that a quotient between the M1 and the M2 is used to determine a manner in which the M1 first type control signaling alternatives and the M2 second type control signaling alternatives are associated.

14. The second node according to claim 9 or 10, characterized in that a first information block comprises the first set of information, the first information block being used for determining the first set of search spaces; the first information set comprises X1 information units, wherein the X1 information units are respectively aimed at X1 different aggregation levels; the X1 information units are used to determine at least the X1 first-type time windows of the X1 first-type time windows or the X1 second-type time windows, respectively; the X1 different aggregation levels include the first aggregation level, and the first set of search spaces supports the X1 different aggregation levels.

15. The second node according to claim 9 or 10, wherein the first set of information is used to indicate the X1 first type of time windows, which X1 first type of time windows are used to determine the X1 second type of time windows, respectively.

16. The second node according to claim 9 or 10, characterized in that,

The second transceiver transmitting a first signal, the second transceiver transmitting a first signal; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

17. The second node according to claim 9 or 10, wherein the second transceiver transmits a first signaling and the second transceiver receives the first signal; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

18. A method in a first node for use in wireless communications, comprising:

monitoring K1 control signaling alternatives in a third time window;

19. The method in the first node of claim 18,

The X1 first type time windows are all associated with a first set of search spaces and the X1 second type time windows are all associated with a second set of search spaces.

20. Method in a first node according to claim 18 or 19, characterized in that the number of monitoring times in which the K1 control signaling alternatives are counted together is equal to K2, the K2 being a positive integer greater than the K1.

21. Method in a first node according to claim 18 or 19, characterized in that,

The first search space set comprises M1 first type control signaling alternatives in the first time window, aggregation levels adopted by the M1 first type control signaling alternatives are all the first aggregation levels, and M1 is a positive integer greater than 1; the second search space set comprises M2 second class control signaling alternatives in the second time window, aggregation levels adopted by the M2 second class control signaling alternatives are all the first aggregation levels, and M2 is a positive integer greater than 1; the first time window is used to determine the M1 first type control signaling alternatives, the second time window is used to determine the M2 second type control signaling alternatives, and the M1 first type control signaling alternatives are associated with the M2 second type control signaling alternatives.

22. The method in the first node of claim 21,

The quotient between the M1 and the M2 is used to determine the manner in which the M1 first type control signaling alternatives and the M2 second type control signaling alternatives are associated.

23. Method in a first node according to claim 18 or 19, characterized in that,

A first information block comprising the first set of information, the first information block being used to determine the first set of search spaces; the first information set comprises X1 information units, wherein the X1 information units are respectively aimed at X1 different aggregation levels; the X1 information units are used to determine at least the X1 first-type time windows of the X1 first-type time windows or the X1 second-type time windows, respectively; the X1 different aggregation levels include the first aggregation level, and the first set of search spaces supports the X1 different aggregation levels.

24. Method in a first node according to claim 18 or 19, characterized in that,

The first set of information is used to indicate the X1 first type of time windows, which X1 first type of time windows are used to determine the X1 second type of time windows, respectively.

25. A method in a first node according to claim 18 or 19, comprising:

Receiving a first signaling;

Operating the first signal;

Wherein the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal; the operation is a reception or the operation is a transmission.

26. A method in a second node for use in wireless communications, comprising:

determining K1 control signaling alternatives in a third time window;

27. The method in the second node of claim 26, wherein the X1 first type time windows are all associated with a first set of search spaces and the X1 second type time windows are all associated with a second set of search spaces.

28. Method in a second node according to claim 26 or 27, characterized in that the number of monitoring times in which the K1 control signaling alternatives are counted together is equal to K2, the K2 being a positive integer greater than the K1.

29. The method in a second node according to claim 26 or 27, wherein the first set of search spaces comprises M1 first type of control signaling alternatives in the first time window, and wherein the aggregation levels employed by the M1 first type of control signaling alternatives are all the first aggregation levels, and wherein M1 is a positive integer greater than 1; the second search space set comprises M2 second class control signaling alternatives in the second time window, aggregation levels adopted by the M2 second class control signaling alternatives are all the first aggregation levels, and M2 is a positive integer greater than 1; the first time window is used to determine the M1 first type control signaling alternatives, the second time window is used to determine the M2 second type control signaling alternatives, and the M1 first type control signaling alternatives are associated with the M2 second type control signaling alternatives.

30. The method in the second node according to claim 29, wherein a quotient between the M1 and the M2 is used to determine a manner in which the M1 first type of control signaling alternatives and the M2 second type of control signaling alternatives are associated.

31. The method in a second node according to claim 26 or 27, characterized in that a first information block comprises the first set of information, the first information block being used for determining the first set of search spaces; the first information set comprises X1 information units, wherein the X1 information units are respectively aimed at X1 different aggregation levels; the X1 information units are used to determine at least the X1 first-type time windows of the X1 first-type time windows or the X1 second-type time windows, respectively; the X1 different aggregation levels include the first aggregation level, and the first set of search spaces supports the X1 different aggregation levels.

32. The method in a second node according to claim 26 or 27, wherein the first set of information is used to indicate the X1 first type time windows, which X1 first type time windows are used to determine the X1 second type time windows, respectively.

33. A method in a second node according to claim 26 or 27, comprising:

Transmitting a first signaling;

transmitting a first signal;

34. A method in a second node according to claim 26 or 27, comprising:

Transmitting a first signaling;

receiving a first signal;