CN113965299B

CN113965299B - Method and apparatus in a node for wireless communication

Info

Publication number: CN113965299B
Application number: CN202010695994.9A
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: 2020-07-20
Filing date: 2020-07-20
Publication date: 2024-04-12
Anticipated expiration: 2040-07-20
Also published as: CN113965299A; CN117938335A

Abstract

A method and apparatus in a node for wireless communication is disclosed. The node preferably receives first information, wherein the first information is used for indicating a first search space set and a second search space set, and a first search space identifier and a second search space identifier are respectively used for identifying the first search space set and the second search space set; then monitoring a target control signaling alternative set in a target time window, wherein the target control signaling alternative set comprises a positive integer number of control signaling alternatives; the order of priority of the first set of search spaces and the second set of search spaces in blind detection is related to the relationship of the first set of search spaces and the second set of search spaces to a first time window and a second time window. According to the method and the device, when the search space set group can be dynamically switched under the unlicensed spectrum, the sequence of blind detection priorities among the search space sets is improved, and therefore blind detection performance and scheduling possibility are improved.

Description

Method and apparatus in a node for wireless communication

Technical Field

The present application relates to transmission methods and apparatus in wireless communication systems, and more particularly to transmission methods and apparatus over unlicensed spectrum.

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 the unlicensed spectrum (Unlicensed Spectrum) scenario, to increase the chance of a terminal being scheduled, DCI (Downlink Control Information ) format 2_0 via PDCCH (Physical Downlink Control Channel, physical downlink control channel) is introduced to inform the terminal of search space set group switching (Search Space Set Group Switch) in COT (Channel Occupy Time, channel occupation time), thereby increasing the likelihood of being scheduled by detecting different search space set groups inside and outside the COT.

Meanwhile, in the conventional PDCCH blind detection of Release 16, the terminal maintains the maximum number of control channel candidates (PDCCH candidates) for one Serving Cell (Serving Cell) monitoring (Monitored) and the maximum number of Non-overlapping (Non-Overlapped) control channel elements (CCEs, control Channel Element) in one downlink bandwidth portion (DL BWP, downlink Bandwidth Part) in one Slot (Slot); when the total number of control channel alternatives and non-overlapping CCEs to be monitored by the terminal exceeds an upper limit, the terminal performs blind detection according to a Search Space identifier (Search Space ID) from small to large under the condition of ensuring blind detection times of a CSS (Common Search Space, public Search Space), and when the number of control channel alternatives or non-overlapping CCEs exceeds a corresponding maximum value, a Search Space set with a larger Search Space set identifier is more easily discarded (droping).

After introducing dynamic switching of the set of search space sets, the above criteria for search space set discard need to be redesigned.

Disclosure of Invention

In the unlicensed spectrum, if the probability of a terminal being scheduled is increased, even if CORESET (Control Resource Set ) corresponding to one search space set does not belong to the COT indicated by the base station, the terminal may still perform blind detection for PDCCH in the search space set to increase the opportunity of being scheduled. In this scenario, when there are multiple sets of search spaces that are not related to the corresponding COTs, all of the above factors need to be considered on the priority of blind detection.

In view of the above application scenario and requirements, the present application discloses a solution, and it needs to be noted that, without conflict, the embodiments of the first node and the features in the embodiments of the present application may be applied to the base station, and the embodiments of the second node and the features in the embodiments of the present application may be applied to the terminal. Meanwhile, the embodiments of the present application and the features in the embodiments may be arbitrarily combined with each other without collision.

Further, although the present application is initially directed to a scenario in which a UE receives downlink in an unlicensed spectrum, the present application can also be applied to a scenario in a licensed spectrum. Further, although the present application is initially directed to the transmission scenario of the control channel, the present application is also applicable to the scenario of the data channel, and achieves technical effects similar to those of the control channel. Furthermore, different scenarios (including but not limited to communication scenarios of terminals and base stations), such as scenarios of communication between terminals, may still employ a unified solution similar to that described herein to help reduce hardware complexity and cost.

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

receiving first information, wherein the first information is used for indicating a first search space set and a second search space set, the first search space set comprises a positive integer number of control signaling alternatives, the second search space set comprises a positive integer number of control signaling alternatives, and a first search space identifier and a second search space identifier are used for identifying the first search space set and the second search space set respectively;

monitoring a target control signaling alternative set in a target time window, wherein the target control signaling alternative set comprises a positive integer number of control signaling alternatives;

wherein the time domain resources occupied by the first set of search spaces overlap with the time domain resources occupied by the second set of search spaces; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set.

As an embodiment, the above method is characterized in that: whether the search space belongs to the COT or not is compared with the search space identification, and the search space is higher in priority in the process of judging whether the search space is discarded or not; when two search space sets belong to one COT and one does not belong to the COT, the search space set belonging to the COT is preferentially blindly detected; when two sets of search spaces belong to COT at the same time or do not belong to COT at the same time, the set of search spaces with smaller search space identifiers is preferentially blindly detected.

As an embodiment, another technical feature of the above method is that: the PDCCH alternatives in the search space set in the COT are not discarded, so that the scheduling probability under the unlicensed spectrum is improved.

According to one aspect of the application, the first set of search spaces is associated to a first identifier and the second set of search spaces is associated to a second identifier; the first and second identifications are both non-negative integers; when the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set belong to the first time window and the second time window respectively, or the time frequency resources occupied by the first search space set and the time frequency resources occupied by the second search space set do not belong to the first time window and the second time window respectively, the first identifier and the second identifier are equal; when the time domain resources occupied by the first search space set belong to the first time window and the time domain resources occupied by the second search space set do not belong to the second time window, the first identifier is larger than the second identifier; and when the time domain resources occupied by the second search space set belong to the second time window and the time domain resources occupied by the first search space set do not belong to the first time window, the first identifier is smaller than the second identifier.

As an embodiment, the above method is characterized in that: the first and second identifiers are each a search space set group index.

According to one aspect of the present application, there is provided:

receiving a first information block and a second information block;

wherein the first information block is used to determine the first time window and the second information block is used to determine the second time window; the first information block is carried by physical layer dynamic signaling, and the second information block is carried by physical layer dynamic signaling.

As an embodiment, the above method is characterized in that: the first time window and the second time window are independently indicated, and LBT (Listen Before Talk, post-listening session) is performed on different subbands to increase the likelihood of access.

According to one aspect of the present application, there is provided:

receiving a third information block;

wherein the time domain resources occupied by the first set of search spaces belong to the first time window, the third information block is used to determine that monitoring for the target control signaling alternative set in the first time window switches from a first set of search spaces to a second set of search spaces, the first identity being an identity employed by the second set of search spaces; the second set of search space sets includes the first set of search spaces; the third information block is carried by physical layer dynamic signaling.

As an embodiment, the above method is characterized in that: the third information block is used for switching of the set of search spaces.

According to one aspect of the present application, there is provided:

receiving a fourth information block;

wherein the time domain resources occupied by the second set of search spaces belong to the second time window, the fourth information block is used to determine that monitoring for the target control signaling alternative set in the second time window switches from a third set of search spaces to a fourth set of search spaces, the second identity being an identity employed by the fourth set of search spaces; the fourth set of search space sets includes the second set of search spaces; the fourth information block is carried by physical layer dynamic signaling.

As an embodiment, the above method is characterized in that: the fourth information block is used for switching of the set of search spaces.

According to one aspect of the present application, there is provided:

receiving a target signal;

wherein the target signal is used to determine a target search space set group, the search space set included in the target search space set group is a common search space, the target search space set group includes P1 control channel alternatives, and the P1 control channel alternatives occupy Q1 control channel elements; any one of the P1 control channel alternatives is one of a positive integer number of control signaling alternatives included in the target set of control signaling alternatives.

According to one aspect of the application, the first set of search spaces includes M1 control channel alternatives, and the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, the M1 being a positive integer greater than 1, the N1 being a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives that the first node monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that the first node monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window.

As an embodiment, one technical effect of the above method is: the blind detection priority of the first search space set and the blind detection priority of the second search space set are smaller than those of the CSS, and the first node performs blind detection in the first search space set and the second search space set after the first node preferentially meets the PDCCH alternatives and non-overlapping CCEs configured for all the CSS.

According to one aspect of the present application, there is provided:

receiving a first signaling;

receiving a first signal;

wherein the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used for scheduling the first signal.

According to one aspect of the present application, there is provided:

receiving a first signaling;

transmitting a first signal;

According to one aspect of the present application, the frequency domain resource occupied by the first signal belongs to a target cell, the first signaling indicates that the frequency domain resource occupied by the first search space set belongs to a first serving cell, the frequency domain resource occupied by the second search space set belongs to a second serving cell, and both the first serving cell and the second serving cell are scheduling cells of the target cell; the first serving cell and the second serving cell are different.

As an embodiment, one technical effect of the above method is: the above scheme is applicable to a scenario in which the target cell can be scheduled by the first serving cell and the second serving cell, that is, the above scheme is applicable to a scenario in which one serving cell can be scheduled by a plurality of scheduling cells.

According to one aspect of the application, 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

As an embodiment, one technical effect of the above method is: the first search space set and the second search space set respectively correspond to different TRPs (Transmitter Receiver Points, transmitting and receiving points), and different beamforming vectors are adopted, so that multi-antenna gain is realized.

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

Transmitting first information, wherein the first information is used for indicating a first search space set and a second search space set, the first search space set comprises a positive integer number of control signaling alternatives, the second search space set comprises a positive integer number of control signaling alternatives, and a first search space identifier and a second search space identifier are used for identifying the first search space set and the second search space set respectively;

determining a target control signaling alternative set in a target time window, wherein the target control signaling alternative set comprises a positive integer number of control signaling alternatives;

According to one aspect of the present application, there is provided:

transmitting the first information block and the second information block;

According to one aspect of the present application, there is provided:

transmitting a third information block;

According to one aspect of the present application, there is provided:

transmitting a fourth information block;

According to one aspect of the present application, there is provided:

transmitting a target signal;

According to one aspect of the present application, there is provided:

transmitting a first signaling;

transmitting a first signal;

According to one aspect of the present application, there is provided:

transmitting a first signaling;

receiving a first signal;

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

a first receiver that receives first information that is used to indicate a first set of search spaces that includes a positive integer number of control signaling alternatives and a second set of search spaces that includes a positive integer number of control signaling alternatives, a first search space identification and a second search space identification being used to identify the first set of search spaces and the second set of search spaces, respectively;

a first transceiver monitoring a target set of control signaling alternatives in a target time window, the target set of control signaling alternatives comprising a positive integer number of control signaling alternatives;

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

a first transmitter that transmits first information, the first information being used to indicate a first set of search spaces and a second set of search spaces, the first set of search spaces including a positive integer number of control signaling alternatives, the second set of search spaces including a positive integer number of control signaling alternatives, a first search space identification and a second search space identification being used to identify the first set of search spaces and the second set of search spaces, respectively;

a second transceiver to determine a target set of control signaling alternatives in a target time window, the target set of control signaling alternatives comprising a positive integer number of control signaling alternatives;

As an example, compared to the conventional solution, the present application has the following advantages:

whether belonging to the COT has a higher priority in determining whether the search space is discarded than the search space identification; when two search space sets belong to one COT and one does not belong to the COT, the search space set belonging to the COT is preferentially blindly detected; when two search space sets belong to COT at the same time or do not belong to COT at the same time, the search space set with smaller search space mark is preferentially detected blindly; thereby ensuring that PDCCH alternatives in a search space set in COT are not discarded, and further improving the probability of being scheduled under unlicensed spectrum;

the above scheme is applicable to a scenario in which the target cell can be scheduled by the first serving cell and the second serving cell, i.e., the above scheme is applicable to a scenario in which one serving cell can be scheduled by a plurality of scheduling cells;

the first set of search spaces and the second set of search spaces correspond to different TRPs, respectively, and different beamforming vectors are adopted, thereby realizing multi-antenna gain.

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 present application;

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

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

FIG. 5 illustrates a flow chart of first information according to one embodiment of the present application;

fig. 6 shows a flow chart of a first signaling according to an embodiment of the present application;

FIG. 7 shows a flow chart of a first information block and a second information block according to one embodiment of the present application;

FIG. 8 shows a flow chart of a third information block according to one embodiment of the present application;

FIG. 9 shows a flow chart of a fourth information block according to one embodiment of the present application;

FIG. 10 illustrates a flow chart of a target signal according to one embodiment of the present application;

FIG. 11 illustrates a schematic diagram of a first set of search spaces and a second set of search spaces, according to one embodiment of the present application;

FIG. 12 shows a schematic diagram of a first time window and a second time window according to one embodiment of the present application;

FIG. 13 shows a schematic diagram of a first identifier and a second identifier according to one embodiment of the present application;

FIG. 14 illustrates a schematic diagram of a target search space collection group, according to one embodiment of the present application;

FIG. 15 illustrates a schematic diagram of a first control resource collection pool and a second control resource collection pool, according to one embodiment of the present application;

FIG. 16 illustrates a block diagram of a processing device in a first node according to one embodiment of the present application;

fig. 17 shows a block diagram of a processing arrangement in a second node according to an embodiment of the present application.

Detailed Description

The technical solution 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 first information in step 101; the target set of control signaling alternatives is monitored in a target time window in step 102.

In embodiment 1, the first information is used to indicate a first set of search spaces comprising a positive integer number of control signaling alternatives and a second set of search spaces comprising a positive integer number of control signaling alternatives, a first search space identification and a second search space identification being used to identify the first set of search spaces and the second set of search spaces, respectively; the target control signaling alternative set comprises a positive integer number of control signaling alternatives; the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set.

As an embodiment, the target time window comprises time domain resources occupied by the first set of search spaces.

As an embodiment, the target time window comprises time domain resources occupied by the second set of search spaces.

As an embodiment, the target time window includes both time domain resources occupied by the first set of search spaces and time domain resources occupied by the second set of search spaces.

As an embodiment, it is RRC (Radio Resoure Control, radio resource control) signaling that carries the first information.

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

As an embodiment, the first information is UE (User Equipment) specific.

As an embodiment, the first information is specific to the first node.

As one embodiment, the first information includes ControlResourceSet IE in TS 38.331.

As an embodiment, the first information includes a SearchSpace IE in TS 38.331.

As one embodiment, the first information includes ControlResourceSetPool IE in TS 38.331.

As an embodiment, the first information includes a PDCCH-Config IE in TS 38.331.

As an embodiment, the first information includes one or more fields in a searchspaceswitchinggrouplst in TS 38.331.

As an embodiment, the first information includes one or more fields in a searchspaceWitchTrigger in TS 38.331.

As an embodiment, the first set of search spaces is one PDCCH Search Space.

As an embodiment, the second set of search spaces is one PDCCH Search Space.

As an embodiment, the first set of search spaces is one PDCCH Search Space Set.

As an embodiment, the second set of search spaces is one PDCCH Search Space Set.

As an embodiment, any one of the positive integer number of control signaling alternatives included in the first set of search spaces is one PDCCH alternative (Candidate).

As an embodiment, any one of the positive integer number of control signaling alternatives included in the second set of search spaces is one PDCCH alternative.

As an embodiment, any one of the positive integer number of control signaling alternatives included in the set of target control signaling alternatives is one PDCCH alternative.

As an embodiment, the first search space set identifier is a searchspace id.

As an embodiment, the second search space set identifier is a searchspace id.

As an embodiment, the meaning that the time domain resource occupied by the first search space set and the time domain resource occupied by the second search space set of the sentence overlap includes: there is at least one OFDM (Orthogonal Frequency Division Multiplexing ) symbol belonging to both 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.

As an embodiment, the meaning that the time domain resource occupied by the first search space set and the time domain resource occupied by the second search space set of the sentence overlap includes: at least one OFDM symbol simultaneously belongs to the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set, and at least another OFDM symbol does not simultaneously belong to the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set.

As an embodiment, the meaning that the time domain resource occupied by the first search space set and the time domain resource occupied by the second search space set of the sentence overlap includes: the first set of search spaces and the second set of search spaces occupy the same one or more OFDM symbols.

As an embodiment, the first search space identification is a non-zero integer.

As an embodiment, the second search space identification is a non-zero integer.

As an embodiment, the first time window and the second time window are different.

As an embodiment, the first time window and the second time window are non-overlapping.

As an embodiment, there is at least one OFDM symbol not belonging to both the first time window and the second time window.

As an embodiment, when the time domain resource occupied by the second search space set belongs to the second time window and the time domain resource occupied by the first search space set belongs to the first time window, the control signaling alternative included in the second search space set belongs to the target control signaling alternative set.

As an embodiment, when the time domain resources occupied by the second set of search spaces do not belong to the second time window and the time domain resources occupied by the first set of search spaces do not belong to the first time window, the control signaling alternatives included in the second set of search spaces belong to the target control signaling alternative set.

As an embodiment, when the time domain resource occupied by the second search space set belongs to the second time window and the time domain resource occupied by the first search space set does not belong to the first time window, the control signaling alternative included in the second search space set belongs to the target control signaling alternative set.

As an embodiment, when the time domain resources occupied by the second set of search spaces do not belong to the second time window and the time domain resources occupied by the first set of search spaces belong to the first time window, the control signaling alternatives included in the first set of search spaces belong to the target control signaling alternative set.

As an embodiment, the first time window comprises a positive integer number of consecutive time slots.

As an embodiment, the second time window comprises a positive integer number of consecutive time slots.

As an embodiment, the first time window comprises a positive integer number of consecutive multicarrier symbols.

As an embodiment, the second time window comprises a positive integer number of consecutive multicarrier symbols.

As an embodiment, the first time window is indicated by physical layer dynamic signaling.

As an embodiment, the second time window is indicated by physical layer dynamic signaling.

As an embodiment, the first time window is subband-specific.

As an embodiment, the second time window is subband-specific.

As an embodiment, the first time window is used only for a first sub-band, the first sub-band includes a positive integer number of RBs (Resource blocks) greater than 1, and the frequency domain resources occupied by the first search space set belong to the positive integer number of RBs greater than 1.

As an embodiment, the second time window is used only for a second sub-band, the second sub-band comprises a positive integer number of RBs greater than 1, and the frequency domain resources occupied by the second set of search spaces belong to the positive integer number of RBs greater than 1.

As a sub-embodiment of the two embodiments, the first sub-band and the second sub-band are orthogonal in the frequency domain.

As an embodiment, the frequency domain resources occupied by the first set of search spaces belong to unlicensed spectrum.

As an embodiment, the frequency domain resources occupied by the second set of search spaces belong to unlicensed spectrum.

As an embodiment, the frequency domain resources occupied by the first set of search spaces are between 450MHz and 6 GHz.

As an embodiment, the frequency domain resources occupied by the first set of search spaces are between 24.25GHz and 52.6 GHz.

As an embodiment, the frequency domain resources occupied by the second set of search spaces are between 450MHz and 6 GHz.

As an embodiment, the frequency domain resources occupied by the second set of search spaces are between 24.25GHz and 52.6 GHz.

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 located in two different serving cells, respectively.

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 located in two different carriers, respectively.

As an embodiment, the meaning that the time domain resource occupied by the first search space set belongs to the first time window includes: the OFDM symbols occupied by the first set of search spaces all belong to the first time window.

As an embodiment, the meaning that the time domain resource occupied by the first search space set does not belong to the first time window includes: the OFDM symbols occupied by the first set of search spaces do not belong to the first time window.

As an embodiment, the meaning that the time domain resource occupied by the first search space set does not belong to the first time window includes: at least one OFDM symbol which is not included in the first time window exists in the OFDM symbols occupied by the first search space set.

As an embodiment, the meaning that the time domain resource occupied by the second search space set belongs to the second time window includes: the OFDM symbols occupied by the second set of search spaces all belong to the second time window.

As an embodiment, the meaning that the time domain resource occupied by the second search space set does not belong to the first time window includes: and the OFDM symbols occupied by the second search space set do not belong to the second time window.

As an embodiment, the meaning that the time domain resource occupied by the second search space set does not belong to the first time window includes: at least one OFDM symbol which is not included in the second time window exists in the OFDM symbols occupied by the second search space set.

As an embodiment, when the control signaling alternatives included in the first set of search spaces belong to the target set of control signaling alternatives, the control signaling alternatives included in the second set of search spaces do not belong to the target set of control signaling alternatives.

As an embodiment, when the control signaling alternatives comprised by the first set of search spaces belong to the target set of control signaling alternatives, the control signaling alternatives comprised by the second set of search spaces are discarded.

As an embodiment, when the control signaling alternatives included in the second set of search spaces belong to the target set of control signaling alternatives, the control signaling alternatives included in the first set of search spaces do not belong to the target set of control signaling alternatives.

As an embodiment, when the control signaling alternatives included in the second set of search spaces belong to the target set of control signaling alternatives, the control signaling alternatives included in the first set of search spaces are discarded.

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 as some other suitable terminology. EPS 200 may include one or more UEs (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 application 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 (transmit receive node), 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 Field, authentication management domain)/UPF (User Plane Function ) 211, other MME/AMF/UPF214, S-GW (Service Gateway) 212, and P-GW (Packet Date Network Gateway, packet data 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 one embodiment, the UE201 supports wireless transmissions over unlicensed spectrum.

As an embodiment, the UE201 supports beamforming-based wireless transmission.

As one embodiment, the UE201 supports receiving wireless signals on multiple beamforming vectors simultaneously.

As an embodiment, the UE201 supports multiple panels for multi-antenna reception.

As an embodiment, the UE201 supports multiple Directional (LBT).

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

As an embodiment, the gNB203 supports wireless transmissions over unlicensed spectrum.

As an embodiment, the gNB203 supports beamforming-based wireless transmission.

As one embodiment, the gNB203 supports receiving wireless signals on multiple beamforming vectors simultaneously.

As an embodiment, the gNB203 supports multiple panels for multi-antenna transmission.

As an embodiment, the gNB203 supports multiple directional LBTs.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present 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 in the present application is generated in the RRC306.

As an embodiment, the first information 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 PHY301 or the PHY351.

As an embodiment, the second information block in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the third information block in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the fourth information block in the present application is generated in the PHY301 or the PHY351.

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

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

As an embodiment, the target signal 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 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 PHY301 or the PHY351.

As an embodiment, the second node is a terminal.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present 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: receiving first information, wherein the first information is used for indicating a first search space set and a second search space set, the first search space set comprises a positive integer number of control signaling alternatives, the second search space set comprises a positive integer number of control signaling alternatives, and a first search space identifier and a second search space identifier are used for identifying the first search space set and the second search space set respectively; monitoring a target control signaling alternative set in a target time window, wherein the target control signaling alternative set comprises a positive integer number of control signaling alternatives; the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set.

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: receiving first information, wherein the first information is used for indicating a first search space set and a second search space set, the first search space set comprises a positive integer number of control signaling alternatives, the second search space set comprises a positive integer number of control signaling alternatives, and a first search space identifier and a second search space identifier are used for identifying the first search space set and the second search space set respectively; monitoring a target control signaling alternative set in a target time window, wherein the target control signaling alternative set comprises a positive integer number of control signaling alternatives; the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set.

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: transmitting first information, wherein the first information is used for indicating a first search space set and a second search space set, the first search space set comprises a positive integer number of control signaling alternatives, the second search space set comprises a positive integer number of control signaling alternatives, and a first search space identifier and a second search space identifier are used for identifying the first search space set and the second search space set respectively; determining a target control signaling alternative set in a target time window, wherein the target control signaling alternative set comprises a positive integer number of control signaling alternatives; the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set.

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: transmitting first information, wherein the first information is used for indicating a first search space set and a second search space set, the first search space set comprises a positive integer number of control signaling alternatives, the second search space set comprises a positive integer number of control signaling alternatives, and a first search space identifier and a second search space identifier are used for identifying the first search space set and the second search space set respectively; determining a target control signaling alternative set in a target time window, wherein the target control signaling alternative set comprises a positive integer number of control signaling alternatives; the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set.

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 terminal.

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

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

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 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 first 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 a target set of control signaling alternatives in a target time window; 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 a target set of control signaling alternatives in a target time window.

As an 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 information block and a second information block; 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 the first information block and the second information block.

As an 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 third block 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/processor 475 are used to transmit a third block of information.

As an 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 fourth block 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 fourth block 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 receive a target 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/processor 475 are used to transmit target signals.

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/processor 459 are used to receive a first signal in a target cell; 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 transmit a first signal in a target cell.

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 in a target cell; the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least the first four of the controllers/processors 475 are used to receive a first signal in a target cell.

Example 5

Embodiment 5 illustrates a flow chart of the first 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 described 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. The embodiments, sub-embodiments and subsidiary embodiments in embodiment 5 can be used in embodiment 6, embodiment 7, embodiment 8, embodiment 9 and embodiment 10 without conflict; conversely, embodiments, sub-embodiments and sub-embodiments of embodiments 6, 7 and 8, 9 and 10 can be used in embodiment 5 without conflict.

For the followingFirst node U1The first information is received in step S10, the target control signaling alternative set is monitored in a target time window in step S11, the first signaling is received in step S12, and the first signal is received in step S13.

For the followingSecond node N2The first information is transmitted in step S20, the target control signaling alternative set is determined in a target time window in step S21, the first signaling is transmitted in step S22, and the first signal is transmitted in step S23.

In embodiment 5, the first information is used to indicate a first set of search spaces comprising a positive integer number of control signaling alternatives and a second set of search spaces comprising a positive integer number of control signaling alternatives, a first search space identification and a second search space identification being used to identify the first set of search spaces and the second set of search spaces, respectively; the target control signaling alternative set comprises a positive integer number of control signaling alternatives; the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

As one embodiment, the first set of search spaces is associated with a first identifier and the second set of search spaces is associated with a second identifier; the first and second identifications are both non-negative integers; when the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set belong to the first time window and the second time window respectively, or the time frequency resources occupied by the first search space set and the time frequency resources occupied by the second search space set do not belong to the first time window and the second time window respectively, the first identifier and the second identifier are equal; when the time domain resources occupied by the first search space set belong to the first time window and the time domain resources occupied by the second search space set do not belong to the second time window, the first identifier is larger than the second identifier; and when the time domain resources occupied by the second search space set belong to the second time window and the time domain resources occupied by the first search space set do not belong to the first time window, the first identifier is smaller than the second identifier.

As a sub-embodiment of this embodiment, the first identification is a search space set group identification.

As a sub-embodiment of this embodiment, the second identification is a search space set group identification.

As a sub-embodiment of this embodiment, the first identity is a groupId.

As a sub-embodiment of this embodiment, the second identifier is a groupId.

As an embodiment, the first signaling is PDCCH.

As an embodiment, the first signaling is DCI.

As an embodiment, the first signaling is used to indicate an MCS (Modulation and Code Scheme, modulation coding scheme) employed by the first signal.

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

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

As an embodiment, the physical layer channel carrying the first signal is PDSCH (Physical Downlink Shared Channel ).

As an embodiment, the first signaling channel is DL-SCH (Downlink Shared Channel ).

As an embodiment, the frequency domain resource occupied by the first signal belongs to a target cell.

As an embodiment, the first signaling indicates the target cell.

As one embodiment, the target Cell is a Primary Cell.

As an embodiment, the frequency domain resource occupied by the first search space set belongs to a first serving cell, the frequency domain resource occupied by the second search space set belongs to a second serving cell, and the first serving cell and the second serving cell are both scheduling cells of the target cell; the first serving cell and the second serving cell are different.

As a sub-embodiment of this embodiment, the first serving Cell is a Secondary Cell and the second serving Cell is a primary Cell.

As a sub-embodiment of this embodiment, the first serving cell is a secondary cell and the second serving cell is a secondary cell.

As one embodiment, 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

As a sub-embodiment of this embodiment, the first set of control resources is a CORESET and the second set of control resources is a CORESET.

As a sub-embodiment of this embodiment, the first pool of control resources corresponds to the first time window and the second pool of control resources corresponds to the second time window.

As a sub-embodiment of this embodiment, the first control resource set pool corresponds to a first TRP, the second control resource set pool corresponds to a second TRP, and the sender of the first signaling includes the first TRP and the second TRP.

As an subsidiary embodiment of this embodiment, said first TRP is used for transmitting said first information block and said second TRP is used for transmitting said second information block.

As a sub-embodiment of this embodiment, the radio signals transmitted in the first control resource set pool and the radio signals transmitted in the second control resource set pool are non-QCL (Quasi Co-located).

As a sub-embodiment of this embodiment, the first node U1 comprises at least two panels monitoring the first and second set of search spaces for the target control signaling alternatives, respectively.

As one example, the QCL in this application is one of QCL-TypeA, QCL-TypeB, QCL-TypeC, or QCL-TypeD in TS 38.214.

As one embodiment, the monitoring comprises blind detection.

As an embodiment, the monitoring comprises receiving.

As an embodiment, the monitoring comprises coherent detection.

As an embodiment, the monitoring comprises energy detection.

As an embodiment, the first node U1 blindly detects the first signaling in the target control signaling alternative set.

As an embodiment, the first node U1 determines whether the first signaling is received correctly by means of a CRC (Cyclic Redundancy Check ) carried by the first signaling.

As an embodiment, the frequency domain resource occupied by the first signaling belongs to the frequency domain resource occupied by the target cell.

Example 6

Embodiment 6 illustrates a flow chart of a first signaling, 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 described 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. The embodiments, sub-embodiments and subsidiary embodiments in embodiment 6 can be used in embodiment 5, embodiment 7, embodiment 8, embodiment 9 and embodiment 10 without conflict; conversely, embodiments, sub-embodiments and sub-embodiments of embodiments 5, 7, 8, 9 and 10 can be used in embodiment 6 without conflict.

For the followingFirst node U3The first information is received in step S30, the target control signaling alternative set is monitored in a target time window in step S31, the first signaling is received in step S32, and the first signal is transmitted in step S33.

For the followingSecond node N4The first information is transmitted in step S40, the target control signaling alternative set is determined in a target time window in step S41, the first signaling is transmitted in step S42, and the first signal is received in step S43.

In embodiment 6, the first information is used to indicate a first set of search spaces including a positive integer number of control signaling alternatives and a second set of search spaces including a positive integer number of control signaling alternatives, a first search space identification and a second search space identification being used to identify the first set of search spaces and the second set of search spaces, respectively; the target control signaling alternative set comprises a positive integer number of control signaling alternatives; the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

As an embodiment, the first signaling is an uplink grant, and the physical layer channel carrying the first signal is PUSCH (Physical Uplink Shared Channel ).

As an embodiment, the first signaling is an uplink grant and the transport channel carrying the first signal is an UL-SCH (Uplink Shared Channel ).

Example 7

Embodiment 7 illustrates a flow chart of a first information block and a second information block, as shown in fig. 7. In fig. 7, the first node U5 and the second node N6 communicate via a wireless link. It is specifically described 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. The embodiments, sub-embodiments and subsidiary embodiments in embodiment 7 can be used in embodiment 5, embodiment 6, embodiment 8, embodiment 9 and embodiment 10 without conflict; conversely, embodiments, sub-embodiments and sub-embodiments of embodiments 5, 6, 8, 9 and 10 can be used in embodiment 7 without conflict.

For the followingFirst node U5The first information block and the second information block are received in step S50.

For the followingSecond node N6The first information block and the second information block are transmitted in step S60.

In embodiment 7, the first information block is used to determine the first time window and the second information block is used to determine the second time window; the first information block is carried by physical layer dynamic signaling, and the second information block is carried by physical layer dynamic signaling.

As an embodiment, the physical layer dynamic signaling carrying the first information block is PDCCH.

As a sub-embodiment of this embodiment, the CRC comprised by the PDCCH carrying the physical layer dynamic signalling of the first information block is scrambled by an RNTI (Radio Network Temporary Identifier, radio network temporary identity) other than the C-RNTI (Cell Radio Network Temporary Identifier, cell radio network temporary identity).

As a sub-embodiment of this embodiment, the CRC comprised by the PDCCH carrying the physical layer dynamic signalling of the first information block is scrambled by the SFI-RNTI.

As an embodiment, the physical layer dynamic signaling carrying the first information block is DCI.

As an embodiment, the Format of the physical layer dynamic signaling carrying the first information block is Format 2_0.

As an embodiment, the physical layer dynamic signaling carrying the second information block is PDCCH.

As an embodiment, the physical layer dynamic signaling carrying the second information block is DCI.

As an embodiment, the Format of the physical layer dynamic signaling carrying the second information block is Format 2_0.

As an embodiment, the first information block and the second information block are both carried by one PDCCH.

As an embodiment, the first information block and the second information block are carried by two PDCCHs, respectively.

As an embodiment, the first information block and the second information block are transmitted in the same time slot.

As an embodiment, the first information block and the second information block are transmitted in two different time slots, respectively.

As an embodiment, the first information block and the second information block are transmitted by two TRPs, respectively.

As an embodiment, the first information block and the second information block are associated to two different control resource set pools, respectively.

As an embodiment, the first information block and the second information block are transmitted in two different control resource set pools, respectively.

As an embodiment, the first information block is one COT Duration Indicator in one DCI Format 2_0.

As an embodiment, the second information block is one COT Duration Indicator in one DCI Format 2_0.

As an embodiment, the first information block is one Available RB Set Indicator in one DCI Format 2_0.

As an embodiment, the second information block is one Available RB Set Indicator in one DCI Format 2_0.

As an example, the step S50 is located before the step S11 and after the step S10 in the example 5.

As an example, the step S50 is located before the step S31 and after the step S30 in the example 6.

As an example, the step S60 is located before the step S21 and after the step S20 in the example 5.

As an example, the step S60 is located before the step S41 and after the step S40 in the example 6.

Example 8

Embodiment 8 illustrates a flow chart of a third information block, as shown in fig. 8. In fig. 8, the first node U7 communicates with the second node N8 via a wireless link. It is specifically described 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. The embodiments, sub-embodiments and subsidiary embodiments in embodiment 8 can be used in embodiment 5, embodiment 6, embodiment 7, embodiment 9 and embodiment 10 without conflict; conversely, embodiments, sub-embodiments and sub-embodiments of embodiments 5, 6, 7, 9 and 10 can be used in embodiment 8 without conflict.

For the followingFirst node U7In step S70 a third information block is received.

For the followingSecond node N8The third information block is transmitted in step S80.

In embodiment 8, the time domain resources occupied by the first set of search spaces belong to the first time window, and the third information block is used to determine that monitoring for the target control signaling candidate set in the first time window switches from a first set of search spaces to a second set of search spaces, the first identity being an identity employed by the second set of search spaces; the second set of search space sets includes the first set of search spaces; the third information block is carried by physical layer dynamic signaling.

As one embodiment, the first set of search space sets includes a positive integer number of search space sets.

As one embodiment, the second set of search space sets includes a positive integer number of search space sets.

As an embodiment, the first identity is an identity employed by the second search space set group, and the first identity is equal to 1.

As an embodiment, the first search space set employs an identification equal to 0.

As an embodiment, the third information block is carried by one PDCCH.

As an embodiment, the third information block is carried by one DCI.

As an embodiment, the Format of the physical layer dynamic signaling carrying the third information block is Format 2_0.

As an embodiment, the third information block is one Monitoring group flag in one DCI Format 2_0.

As an embodiment, the first search space set belongs to a first search space set group or a second search space set group, and the first identifier is an identifier adopted by one search space set group to which the first search space set belongs in the first search space set group and the second search space set group.

As an embodiment, when the first set of search spaces belongs to a first set of search spaces, the first identification is an identification employed by the first set of search spaces.

As an embodiment, when the first set of search spaces belongs to a second set of search spaces, the first identification is an identification employed by the second set of search spaces.

As an example, the step S70 is located before the step S11 and after the step S10 in the example 5.

As an example, the step S70 is located before the step S31 and after the step S30 in the example 6.

As an example, the step S80 is located before the step S21 and after the step S20 in the embodiment 5.

As an example, the step S80 is located before the step S41 and after the step S40 in the embodiment 6.

Example 9

Embodiment 9 illustrates a flow chart of a fourth information block, as shown in fig. 9. In fig. 9, the first node U9 and the second node N10 communicate via a wireless link. It is specifically described 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. The embodiments, sub-embodiments and subsidiary embodiments in embodiment 9 can be used in embodiment 5, embodiment 6, embodiment 7, embodiment 8 and embodiment 10 without conflict; conversely, embodiments, sub-embodiments and sub-embodiments of embodiments 5, 6, 7, 8 and 10 can be used in embodiment 9 without conflict.

For the followingFirst node U9A fourth information block is received in step S90.

For the followingSecond node N10The fourth information block is transmitted in step S100.

In embodiment 9, the time domain resources occupied by the second set of search spaces belong to the second time window, and the fourth information block is used to determine that monitoring for the target control signaling alternative set in the second time window switches from a third set of search spaces to a fourth set of search spaces, the second identity being the identity employed by the fourth set of search spaces; the fourth set of search space sets includes the second set of search spaces; the fourth information block is carried by physical layer dynamic signaling.

As an embodiment, the third set of search space sets comprises a positive integer number of search space sets.

As an embodiment, the fourth set of search space sets comprises a positive integer number of search space sets.

As an embodiment, the second identifier is an identifier adopted by the fourth search space set group, and the second identifier is equal to 1.

As an embodiment, the fourth search space set employs an identification equal to 1.

As an embodiment, the fourth information block is carried by one PDCCH.

As an embodiment, the fourth information block is carried by one DCI.

As an embodiment, the Format of the physical layer dynamic signaling carrying the fourth information block is Format 2_0.

As an embodiment, the fourth information block is one Monitoring group flag in one DCI Format 2_0.

As an embodiment, the second search space set belongs to a third search space set group or a fourth search space set group, and the second identifier is an identifier adopted by one search space set group to which the second search space set belongs in the third search space set group and the fourth search space set group.

As an embodiment, when the second set of search spaces belongs to a third set of search spaces, the second identification is an identification employed by the third set of search spaces.

As an embodiment, when the second set of search spaces belongs to a fourth set of search spaces, the second identification is an identification employed by the fourth set of search spaces.

As an example, the step S90 is located before the step S11 and after the step S10 in the example 5.

As an example, the step S90 is located before the step S31 and after the step S30 in the example 6.

As an example, the step S100 is located before the step S21 and after the step S20 in the example 5.

As an example, the step S100 is located before the step S41 and after the step S40 in the example 6.

Example 10

Embodiment 10 illustrates a flow chart of a target signal, as shown in fig. 10. In fig. 10, the first node U11 and the second node N12 communicate via a wireless link. It is specifically described 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. The embodiments, sub-embodiments and subsidiary embodiments in embodiment 10 can be used in embodiment 5, embodiment 6, embodiment 7, embodiment 8 and embodiment 9 without conflict; conversely, the embodiments, sub-embodiments and sub-embodiments of the embodiments 5, 6, 7, 8 and 9 can be used in the embodiment 10 without conflict.

For the followingFirst node U11The target signal is received in step S110.

For the followingSecond node N12The target signal is transmitted in step S120.

In embodiment 10, the target signal is used to determine a target set of search spaces, where the set of search spaces included in the target set of search spaces is a common search space, the set of target set of search spaces includes P1 control channel alternatives, and the P1 control channel alternatives occupy Q1 control channel elements; any one of the P1 control channel alternatives is one of a positive integer number of control signaling alternatives included in the target set of control signaling alternatives.

As one embodiment, the target search space set group includes a plurality of search space sets, which are all CSS (Common Search Space ).

As an embodiment, the target search space set group includes a plurality of search space sets, one search space among which is the CSS.

As an embodiment, the target search space set group comprises only 1 search space set, said 1 search space set being a CSS.

As one embodiment, the set of search spaces included in the set of target search space sets is PDCCH Search Space.

As one embodiment, the set of search spaces included in the set of target search space sets is PDCCH Search Space Set.

As one embodiment, the target signal includes SSB (SS/PBCH Block, synchronization signal/physical broadcast channel Block).

As an embodiment, the target signal comprises PBCH (Physical Broadcast Channel ).

As an embodiment, the target signal comprises a PSS (Primary Synchronization Signal ).

As an embodiment, the target signal comprises an SSS (Secondary Synchronization Signal, primary synchronization signal).

As one embodiment, the target signal includes PSS and SSS.

As one embodiment, the time domain resources occupied by the set of search spaces included in the set of target search space sets overlap with the time domain resources occupied by the first set of search spaces, and the time domain resources occupied by the set of search spaces included in the set of target search space sets overlap with the time domain resources occupied by the second set of search spaces.

As an embodiment, the target signal comprises RRC signaling.

As an embodiment, the target signal comprises a system information block.

As an embodiment, the target signal includes a SIB 1 Message (Message) in TS 38.331.

As one embodiment, the first set of search spaces includes M1 control channel alternatives, and the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, the M1 being a positive integer greater than 1, the N1 being a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives that the first node U11 monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window; the second threshold is the maximum number of non-overlapping control channel elements that the first node U11 monitors for one serving cell under the first subcarrier and in one downlink bandwidth portion in a given time window.

As a sub-embodiment of this embodiment, the control channel alternatives included in the target set of search spaces all employ the first subcarrier spacing.

As a sub-embodiment of this embodiment, the time domain resources occupied by the first set of search spaces belong to the given time window.

As a sub-embodiment of this embodiment, the time domain resources occupied by the second set of search spaces belong to the given time window.

As a sub-embodiment of this embodiment, all time domain resources occupied by the target set of search spaces belong to the given time window.

As a sub-embodiment of this embodiment, the first threshold is a smaller value of the first integer and the second integer.

As a subsidiary embodiment of this sub-embodiment, said first integer is in TS 38.213Said second integer is +.in TS 38.213>The first subcarrier spacing is used to determine μ.

As an subsidiary embodiment of this sub-embodiment, said first integer is obtained by means of said first subcarrier spacing look-up table.

As an subsidiary embodiment of this sub-embodiment, said second integer relates to the carrier aggregation capability of said first node U11.

As an subsidiary embodiment of this sub-embodiment, said second integer is related to the pdcch-blinddetection ca of said first node U11.

As an subsidiary embodiment of this sub-embodiment, said second integer is related to the version (Release) of said first node U11.

As a subsidiary embodiment of this sub-embodiment, said second integer andrelated to the following.

As an subsidiary embodiment of this sub-embodiment, said second integer relates to the number of CORESET pools comprised by the scheduling cell of said first node U11.

As a sub-embodiment of this embodiment, any one of the M1 control channel alternatives occupies one or more of the M2 control channel elements.

As a sub-embodiment of this embodiment, two independent channel estimates are required for any two of the M2 control channel elements (Channel Estimation).

As a sub-embodiment of this embodiment, channel estimates for any two of the M2 control channel elements cannot be reused (Reuse) with each other.

As a sub-embodiment of this embodiment, two independent channel equalizations (equallizations) are required for any two of the M2 control channel elements.

As a sub-embodiment of this embodiment, any one of the M2 control channel elements is a PDCCH CCE.

As a sub-embodiment of this embodiment, any one of the M2 control channel elements is a Non-overlapping control channel element (Non-overlapping CCE).

As a sub-embodiment of this embodiment, any two of the M2 control channel elements are Non-overlapping (Non-overlapping).

As a sub-embodiment of this embodiment, the number of time-frequency resource units included in any two control channel elements of the M2 control channel elements is equal.

As a sub-embodiment of this embodiment, any two control channel elements of the M2 control channel elements include equal numbers of REs.

As a sub-embodiment of this embodiment, any one of the M2 control channel elements includes 6 resource element groups (REGs, resource Element Group).

As a sub-embodiment of this embodiment, any one of the M2 control channel elements includes 6 resource element groups, each REG includes 9 resource elements used for transmitting data modulation symbols and 3 resource elements used for transmitting Reference channels (RSs).

As a sub-embodiment of this embodiment, the time-frequency resources occupied by any two of the M2 control channel elements are Orthogonal (orthological).

As a sub-embodiment of this embodiment, there are time-frequency resources Non-Orthogonal (Non-orthoonal) occupied by two control channel elements among the M2 control channel elements.

As a sub-embodiment of this embodiment, the time-frequency resources occupied by two control channel elements among the M2 control channel elements are the same.

As a sub-embodiment of this embodiment, the time-frequency resources occupied by any two control channel elements of the M2 control channel elements are different.

As a sub-embodiment of this embodiment, any one of the M1 control channel elements occupied by the M1 control channel alternatives is one of the M2 control channel elements.

As a sub-embodiment of this embodiment, one control channel element occupied by one of the M1 control channel alternatives is present is a control channel element other than the M2 control channel elements.

As a sub-embodiment of this embodiment, any one of the M2 control channel elements is occupied by at least one of the M1 control channel alternatives.

As a sub-embodiment of this embodiment, the M2 control channel elements include all control channel elements occupied by any one of the M1 control channel alternatives.

As a sub-embodiment of this embodiment, the subcarrier spacing of the subcarrier occupied by any one of the M2 control channel elements in the frequency domain is equal to the subcarrier spacing configured by the Bandwidth Part (BWP) of the Active (Active) to which any one of the M2 control channel elements belongs in the frequency domain.

As a sub-embodiment of this embodiment, the M2 control channel elements respectively belong to M3 Active (BWP) Bandwidth parts in the frequency domain, a subcarrier spacing of subcarriers included in any one of the M3 Active Bandwidth parts is equal to the first subcarrier spacing, and the M3 is a positive integer.

As a sub-embodiment of this embodiment, any one of the M2 control channel elements belongs to one of the first set of subbands in the present application in the frequency domain.

As a sub-embodiment of this embodiment, the subcarrier spacing of any two subcarriers occupied by the M2 control channel elements is equal.

As a sub-embodiment of this embodiment, a subcarrier spacing of subcarriers occupied by any one of the M2 control channel elements in the frequency domain is equal to the first subcarrier spacing.

As a sub-embodiment of this embodiment, a subcarrier spacing of any one subcarrier occupied by any one of the M2 control channel elements in the frequency domain is equal to the first subcarrier spacing.

As a sub-embodiment of this embodiment, the frequency domain resources occupied by the M1 control channel alternatives are between 450MHz and 6 GHz.

As a sub-embodiment of this embodiment, the frequency domain resources occupied by the M1 control channel alternatives are between 24.25GHz and 52.6 GHz.

As a sub-embodiment of this embodiment, the first threshold value and the second threshold value may or may not be equal.

As a sub-embodiment of this embodiment, the first threshold and the second threshold are independent.

As a sub-embodiment of this embodiment, the first threshold value and the second threshold value are independent.

As a sub-embodiment of this embodiment, the first threshold value and the second threshold value are correlated.

As a sub-embodiment of this embodiment, the first threshold value and the second threshold value are linearly related.

As a sub-embodiment of this embodiment, the first threshold value and the second threshold value are in a proportional relationship.

As a sub-embodiment of this embodiment, the first node U11 in the present application is not required to monitor (required) the number of control channel alternatives greater than the first threshold in the active part of the bandwidth employing the first subcarrier spacing in the given time window.

As a sub-embodiment of this embodiment, the first node U11 in the present application is not required to monitor the number of control channel elements greater than the second threshold in the active bandwidth portion of the given time window employing the first subcarrier spacing.

As a sub-embodiment of this embodiment, the given time window is a time slot.

As a sub-embodiment of this embodiment, the first time window comprises the given time window.

As a sub-embodiment of this embodiment, the second time window comprises the given time window.

As a sub-embodiment of this embodiment, both the first time window and the second time window comprise the given time window.

As a sub-embodiment of this embodiment, the magnitude of the first threshold value is related to the number of panels included in the first node U11.

As a sub-embodiment of this embodiment, the size of the second threshold value is related to the number of panels included in the first node U11.

As a sub-embodiment of this embodiment, the given time window comprises all or part of the time resources occupied by the first set of search spaces.

As a sub-embodiment of this embodiment, the given time window comprises all or part of the time resources occupied by the second set of search spaces.

As an example, the step S110 is located before the step S10 in example 5.

As an example, the step S110 is located before the step S30 in example 6.

As an example, the step S120 is located before the step S20 in example 5.

As an example, the step S120 is located before the step S40 in example 6.

Example 11

Embodiment 11 illustrates a schematic diagram of a first set of search spaces and a second set of search spaces, as shown in fig. 11. In fig. 11, 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, and 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 overlap.

As an embodiment, the first set of search spaces occupies a positive integer number of REs (Resource Elements, resource units) greater than 1.

As an embodiment, the second set of search spaces occupies a positive integer number of REs greater than 1.

As an embodiment, the first set of search spaces is associated to a CORESET.

For one embodiment, the second set of search spaces is associated with a CORESET.

Example 12

Embodiment 12 illustrates a schematic diagram of a first time window and a second time window, as shown in fig. 12. In fig. 12, the first time window is for a first subband and the second time window is for a second subband; the first time window and the second time window overlap in the time domain.

As one embodiment, the second node performs LBT on a first beamforming vector and determines the first time window, and the second node performs LBT on a second beamforming vector and determines the second time window, the wireless signal transmitted on the first beamforming vector and the wireless signal transmitted on the second beamforming vector being non-QCL.

As one embodiment, the second node LBT on a first set of spatial reception parameters and determines the first time window, and the second node LBT on a second set of spatial reception parameters and determines the second time window; the first set of spatial reception parameters is used to determine a first set of spatial transmission parameters and the second set of spatial reception parameters is used to determine a second set of spatial transmission parameters; the wireless signals transmitted using the first set of spatial transmission parameters and the wireless signals transmitted using the second set of spatial transmission parameters are non-QCL.

As an embodiment, the duration of the first time window in the time domain is the same as the duration of the second time window in the time domain.

Example 13

Example 13 illustrates a schematic diagram of a first identifier and a second identifier, as shown in fig. 13. In fig. 13, the first set of search spaces is associated with the first search space identification and the first identification, and the second set of search spaces is associated with the second search space identification and the second identification.

As an embodiment, the first identification is equal to 1 when the first set of search spaces belongs to the first time window; the first identification is equal to 0 when the second set of search spaces does not belong to the second time window.

As an embodiment, the second identification is equal to 1 when the second set of search spaces belongs to the second time window; the second identification is equal to 0 when the second set of search spaces does not belong to the second time window.

As an embodiment, the first identifier is a search space set group index.

As an embodiment, the second identifier is a search space set group index.

Example 14

Embodiment 14 illustrates a schematic diagram of a target search space set group, as shown in fig. 14. In fig. 14, the target search space set group is a positive integer number RE greater than 1, and the time domain resources occupied by the target search space set group overlap with the time domain resources occupied by the first search space set; and the time domain resources occupied by the target search space set group overlap with the time domain resources occupied by the second search space set.

As one embodiment, the set of target search spaces includes only one set of search spaces.

As one embodiment, the set of target search spaces includes a plurality of sets of search spaces.

Example 15

Embodiment 15 illustrates a schematic diagram of a first control resource collection pool and a second control resource collection pool, as shown in fig. 15. In fig. 15, the first and second control resource set pools are associated with first and second TRPs, respectively.

As one embodiment, the first pool of control resource sets includes a first set of control resources to which the first set of search spaces is associated.

As one embodiment, the second pool of control resource sets includes a second set of control resources to which the second set of search spaces is associated.

Example 16

Embodiment 16 illustrates a block diagram of the structure in a first node, as shown in fig. 16. In fig. 16, a first node 1600 includes a first receiver 1601 and a first transceiver 1602.

A first receiver 1601 that receives first information that is used to indicate a first set of search spaces that includes a positive integer number of control signaling alternatives and a second set of search spaces that includes a positive integer number of control signaling alternatives, a first search space identification and a second search space identification being used to identify the first set of search spaces and the second set of search spaces, respectively;

a first transceiver 1602 monitoring a target set of control signaling alternatives in a target time window, the target set of control signaling alternatives comprising a positive integer number of control signaling alternatives;

in embodiment 16, 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 overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set.

As an embodiment, the first transceiver 1602 receives a first information block and a second information block; the first information block is used to determine the first time window and the second information block is used to determine the second time window; the first information block is carried by physical layer dynamic signaling, and the second information block is carried by physical layer dynamic signaling.

For one embodiment, the first transceiver 1602 receives a third block of information; the time domain resources occupied by the first set of search spaces belong to the first time window, the third information block is used for determining that monitoring for the target control signaling alternative set in the first time window is switched from a first set of search spaces to a second set of search spaces, and the first identifier is an identifier adopted by the second set of search spaces; the second set of search space sets includes the first set of search spaces; the third information block is carried by physical layer dynamic signaling.

As an embodiment, the first transceiver 1602 receives a fourth block of information; the time domain resources occupied by the second set of search spaces belong to the second time window, the fourth information block is used for determining that monitoring for the target control signaling alternative set in the second time window is switched from a third set of search spaces to a fourth set of search spaces, and the second identifier is an identifier adopted by the fourth set of search spaces; the fourth set of search space sets includes the second set of search spaces; the fourth information block is carried by physical layer dynamic signaling.

As one embodiment, the first receiver 1601 receives a target signal; the target signal is used for determining a target search space set group, wherein a search space set included in the target search space set group is a public search space, the target search space set group comprises P1 control channel alternatives, and the P1 control channel alternatives occupy Q1 control channel elements; any one of the P1 control channel alternatives is one of a positive integer number of control signaling alternatives included in the target set of control signaling alternatives.

As one embodiment, the first set of search spaces includes M1 control channel alternatives, and the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, the M1 being a positive integer greater than 1, the N1 being a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives that the first node monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that the first node monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window.

For one embodiment, the first transceiver 1602 receives the first signaling and the first transceiver 1602 receives the first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

As one embodiment, the first transceiver 1602 receives the first signaling and the first transceiver 1602 sends the first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

As an embodiment, the frequency domain resource occupied by the first signal belongs to a target cell, the first signaling indicates the target cell, the frequency domain resource occupied by the first search space set belongs to a first service cell, the frequency domain resource occupied by the second search space set belongs to a second service cell, and both the first service cell and the second service cell are scheduling cells of the target cell; the first serving cell and the second serving cell are different.

As an embodiment, the first receiver 1601 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 example, the first transceiver 1602 includes at least the first 6 of the antenna 452, the transmitter/receiver 454, the multi-antenna transmit processor 457, the multi-antenna receive processor 458, the transmit processor 468, the receive processor 456, and the controller/processor 459 of example 4.

Example 17

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

A first transmitter 1701 that transmits first information that is used to indicate a first set of search spaces that includes a positive integer number of control signaling alternatives and a second set of search spaces that includes a positive integer number of control signaling alternatives, a first search space identification and a second search space identification being used to identify the first set of search spaces and the second set of search spaces, respectively;

A second transceiver 1702 that determines a target set of control signaling alternatives in a target time window, the target set of control signaling alternatives comprising a positive integer number of control signaling alternatives;

in embodiment 17, 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 overlap; the first search space identifier and the second search space identifier are both non-negative integers, and the first search space identifier is greater than the second search space identifier; when the time domain resources occupied by the second search space set belong to a second time window, or the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set do not belong to a first time window and a second time window respectively, the control signaling alternatives included in the second search space set belong to the target control signaling alternative set; when the time domain resources occupied by the first search space set belong to a first time window and the time domain resources occupied by the second search space set do not belong to a second time window, the control signaling alternatives included in the first search space set belong to the target control signaling alternative set.

As an embodiment, the second transceiver 1702 transmits a first information block and a second information block; the first information block is used to determine the first time window and the second information block is used to determine the second time window; the first information block is carried by physical layer dynamic signaling, and the second information block is carried by physical layer dynamic signaling.

For one embodiment, the second transceiver 1702 transmits a third block of information; the time domain resources occupied by the first set of search spaces belong to the first time window, the third information block is used for determining that monitoring for the target control signaling alternative set in the first time window is switched from a first set of search spaces to a second set of search spaces, and the first identifier is an identifier adopted by the second set of search spaces; the second set of search space sets includes the first set of search spaces; the third information block is carried by physical layer dynamic signaling.

For one embodiment, the second transceiver 1702 transmits a fourth block of information; the time domain resources occupied by the second set of search spaces belong to the second time window, the fourth information block is used for determining that monitoring for the target control signaling alternative set in the second time window is switched from a third set of search spaces to a fourth set of search spaces, and the second identifier is an identifier adopted by the fourth set of search spaces; the fourth set of search space sets includes the second set of search spaces; the fourth information block is carried by physical layer dynamic signaling.

As an embodiment, the first transmitter 1701 transmits a target signal; the target signal is used for determining a target search space set group, wherein a search space set included in the target search space set group is a public search space, the target search space set group comprises P1 control channel alternatives, and the P1 control channel alternatives occupy Q1 control channel elements; any one of the P1 control channel alternatives is one of a positive integer number of control signaling alternatives included in the target set of control signaling alternatives.

For one embodiment, the second transceiver 1702 sends a first signaling and the second transceiver 1702 sends a first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

For one embodiment, the second transceiver 1702 sends a first signaling and the second transceiver 1702 receives a first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

As one example, the first transmitter 1701 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 1702 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the multi-antenna receive processor 472, 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 application is not limited to any specific combination of software and hardware. The first node and the second node in the application include, but are not limited to, mobile phones, tablet computers, notebooks, network cards, low power consumption devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, vehicles, RSUs, aircrafts, airplanes, unmanned aerial vehicles, remote control aircrafts and other wireless communication devices. The base station in the present application includes, but is not limited to, a macro cell base station, a micro 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, and other wireless communication devices.

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 modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

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

2. The first node of claim 1, wherein the first set of search spaces is associated to a first identity and the second set of search spaces is associated to a second identity; the first and second identifications are both non-negative integers; when the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set belong to the first time window and the second time window respectively, or the time frequency resources occupied by the first search space set and the time frequency resources occupied by the second search space set do not belong to the first time window and the second time window respectively, the first identifier and the second identifier are equal; when the time domain resources occupied by the first search space set belong to the first time window and the time domain resources occupied by the second search space set do not belong to the second time window, the first identifier is larger than the second identifier; and when the time domain resources occupied by the second search space set belong to the second time window and the time domain resources occupied by the first search space set do not belong to the first time window, the first identifier is smaller than the second identifier.

3. The first node of claim 1 or 2, wherein the first transceiver receives a first information block and a second information block; the first information block is used to determine the first time window and the second information block is used to determine the second time window; the first information block is carried by physical layer dynamic signaling, and the second information block is carried by physical layer dynamic signaling.

4. The first node of claim 2, wherein the first transceiver receives a third block of information; the time domain resources occupied by the first set of search spaces belong to the first time window, the third information block is used for determining that monitoring for the target control signaling alternative set in the first time window is switched from a first set of search spaces to a second set of search spaces, and the first identifier is an identifier adopted by the second set of search spaces; the second set of search space sets includes the first set of search spaces; the third information block is carried by physical layer dynamic signaling.

5. The first node of claim 2, wherein the first transceiver receives a fourth block of information; the time domain resources occupied by the second set of search spaces belong to the second time window, the fourth information block is used for determining that monitoring for the target control signaling alternative set in the second time window is switched from a third set of search spaces to a fourth set of search spaces, and the second identifier is an identifier adopted by the fourth set of search spaces; the fourth set of search space sets includes the second set of search spaces; the fourth information block is carried by physical layer dynamic signaling.

6. The first node of any one of claims 1, 2, 4, or 5, wherein the first receiver receives a target signal; the target signal is used for determining a target search space set group, wherein a search space set included in the target search space set group is a public search space, the target search space set group comprises P1 control channel alternatives, and the P1 control channel alternatives occupy Q1 control channel elements; any one of the P1 control channel alternatives is one of a positive integer number of control signaling alternatives included in the target set of control signaling alternatives.

7. A first node according to claim 3, wherein the first receiver receives a target signal; the target signal is used for determining a target search space set group, wherein a search space set included in the target search space set group is a public search space, the target search space set group comprises P1 control channel alternatives, and the P1 control channel alternatives occupy Q1 control channel elements; any one of the P1 control channel alternatives is one of a positive integer number of control signaling alternatives included in the target set of control signaling alternatives.

8. The first node of claim 6, wherein the first set of search spaces includes M1 control channel alternatives, and the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, the M1 being a positive integer greater than 1, the N1 being a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives that the first node monitors for one serving cell in one downlink bandwidth portion under a first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that the first node monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window.

9. The first node of claim 7, wherein the first set of search spaces includes M1 control channel alternatives, and the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, the M1 being a positive integer greater than 1, the N1 being a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives that the first node monitors for one serving cell in one downlink bandwidth portion under a first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that the first node monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window.

10. The first node of any of claims 1, 2, 4, 5, 7, 8, or 9, wherein the first transceiver receives first signaling and the first transceiver operates on first signals; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling is used to schedule the first signal, the operation is a reception or the operation is a transmission.

11. A first node according to claim 3, wherein the first transceiver receives first signaling and the first transceiver operates on first signals; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling is used to schedule the first signal, the operation is a reception or the operation is a transmission.

12. The first node of claim 6, wherein the first transceiver receives first signaling and the first transceiver operates on first signals; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling is used to schedule the first signal, the operation is a reception or the operation is a transmission.

13. The first node of any of claims 1, 2, 4, 5, 7, 8, 9, 11, or 12, wherein 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

14. The first node of claim 3, wherein 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

15. The first node of claim 6, wherein 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

16. The first node of claim 10, wherein 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

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

18. The second node of claim 17, wherein the second node comprises a second node comprising a second node,

the first set of search spaces is associated to a first identity and the second set of search spaces is associated to a second identity; the first and second identifications are both non-negative integers; when the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set belong to the first time window and the second time window respectively, or the time frequency resources occupied by the first search space set and the time frequency resources occupied by the second search space set do not belong to the first time window and the second time window respectively, the first identifier and the second identifier are equal; when the time domain resources occupied by the first search space set belong to the first time window and the time domain resources occupied by the second search space set do not belong to the second time window, the first identifier is larger than the second identifier; and when the time domain resources occupied by the second search space set belong to the second time window and the time domain resources occupied by the first search space set do not belong to the first time window, the first identifier is smaller than the second identifier.

19. The second node according to claim 17 or 18, wherein the second transceiver transmits a first information block and a second information block; the first information block is used to determine the first time window and the second information block is used to determine the second time window; the first information block is carried by physical layer dynamic signaling, and the second information block is carried by physical layer dynamic signaling.

20. The second node of claim 18, wherein the second transceiver transmits a third block of information;

the time domain resources occupied by the first set of search spaces belong to the first time window, the third information block is used for determining that monitoring for the target control signaling alternative set in the first time window is switched from a first set of search spaces to a second set of search spaces, and the first identifier is an identifier adopted by the second set of search spaces; the second set of search space sets includes the first set of search spaces; the third information block is carried by physical layer dynamic signaling.

21. The second node of claim 18, wherein the second transceiver transmits a fourth block of information;

The time domain resources occupied by the second set of search spaces belong to the second time window, the fourth information block is used for determining that monitoring for the target control signaling alternative set in the second time window is switched from a third set of search spaces to a fourth set of search spaces, and the second identifier is an identifier adopted by the fourth set of search spaces; the fourth set of search space sets includes the second set of search spaces; the fourth information block is carried by physical layer dynamic signaling.

22. The second node according to any of claims 17, 18, 20 or 21, wherein the first transmitter transmits a target signal; the target signal is used for determining a target search space set group, wherein a search space set included in the target search space set group is a public search space, the target search space set group comprises P1 control channel alternatives, and the P1 control channel alternatives occupy Q1 control channel elements; any one of the P1 control channel alternatives is one of a positive integer number of control signaling alternatives included in the target set of control signaling alternatives.

23. The second node of claim 19, wherein the first transmitter transmits a target signal; the target signal is used for determining a target search space set group, wherein a search space set included in the target search space set group is a public search space, the target search space set group comprises P1 control channel alternatives, and the P1 control channel alternatives occupy Q1 control channel elements; any one of the P1 control channel alternatives is one of a positive integer number of control signaling alternatives included in the target set of control signaling alternatives.

24. The second node of claim 22, wherein the first set of search spaces includes M1 control channel alternatives, and the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, the M1 being a positive integer greater than 1, the N1 being a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives monitored by a receiver of the target signal for one serving cell in one downlink bandwidth portion under a first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that a receiver of the target signal monitors for one serving cell under the first subcarrier and in one downlink bandwidth portion in a given time window.

25. The second node of claim 23, wherein the first set of search spaces includes M1 control channel alternatives, and the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, the M1 being a positive integer greater than 1, the N1 being a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives monitored by a receiver of the target signal for one serving cell in one downlink bandwidth portion under a first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that a receiver of the target signal monitors for one serving cell under the first subcarrier and in one downlink bandwidth portion in a given time window.

26. The second node of any of claims 17, 18, 20, 21, 23, 24, or 25, wherein the second transceiver transmits a first signaling and the second transceiver transmits a first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

27. The second node of claim 19, wherein the second transceiver transmits a first signaling and the second transceiver transmits a first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

28. The second node of claim 22, wherein the second transceiver transmits a first signaling and the second transceiver transmits a first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

29. The second node of any of claims 17, 18, 20, 21, 23, 24, 25, 27, or 28, wherein the second transceiver transmits first signaling and the second transceiver receives first signals; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

30. The second node of claim 19, wherein the second transceiver transmits a first signaling and the second transceiver receives a first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

31. The second node of claim 22, wherein the second transceiver transmits a first signaling and the second transceiver receives a first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

32. The second node of claim 26, wherein the second transceiver transmits a first signaling and the second transceiver receives a first signal; the first signaling occupies one control signaling alternative of the set of target control signaling alternatives, the first signaling being used to schedule the first signal.

33. The second node according to any of claims 27, 28, 30, 31 or 32, wherein the frequency domain resources occupied by the first signal belong to a target cell, the first signaling indicates the target cell, the frequency domain resources occupied by the first set of search spaces belong to a first serving cell, the frequency domain resources occupied by the second set of search spaces belong to a second serving cell, and both the first serving cell and the second serving cell are scheduling cells of the target cell; the first serving cell and the second serving cell are different.

34. The second node of claim 26, wherein the frequency domain resources occupied by the first signal belong to a target cell, the first signaling indicates the target cell, the frequency domain resources occupied by the first set of search spaces belong to a first serving cell, the frequency domain resources occupied by the second set of search spaces belong to a second serving cell, and both the first serving cell and the second serving cell are scheduling cells of the target cell; the first serving cell and the second serving cell are different.

35. The second node of claim 29, wherein the frequency domain resources occupied by the first signal belong to a target cell, the first signaling indicates the target cell, the frequency domain resources occupied by the first set of search spaces belong to a first serving cell, the frequency domain resources occupied by the second set of search spaces belong to a second serving cell, and both the first serving cell and the second serving cell are scheduling cells of the target cell; the first serving cell and the second serving cell are different.

36. The second node of any one of claim 17, 18, 20, 21, 23, 24, 25, 27, 28, 30, 31, 32, 34, or 35,

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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

37. The second node of claim 19, wherein the second node comprises a second node comprising a second node,

38. The second node of claim 22, wherein the second node comprises a second node comprising a second node,

39. The second node of claim 26, wherein the second node comprises a second node comprising a second node,

40. The second node of claim 29, wherein the second node comprises a second node comprising a second node,

41. The second node of claim 33, wherein the second node comprises a second node comprising a second node,

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

43. The method in the first node of claim 42, wherein the first set of search spaces is associated with a first identifier and the second set of search spaces is associated with a second identifier; the first and second identifications are both non-negative integers; when the time domain resources occupied by the first search space set and the time domain resources occupied by the second search space set belong to the first time window and the second time window respectively, or the time frequency resources occupied by the first search space set and the time frequency resources occupied by the second search space set do not belong to the first time window and the second time window respectively, the first identifier and the second identifier are equal; when the time domain resources occupied by the first search space set belong to the first time window and the time domain resources occupied by the second search space set do not belong to the second time window, the first identifier is larger than the second identifier; and when the time domain resources occupied by the second search space set belong to the second time window and the time domain resources occupied by the first search space set do not belong to the first time window, the first identifier is smaller than the second identifier.

44. The method in a first node according to claim 42 or 43, comprising:

receiving a first information block and a second information block;

45. The method of claim 43, comprising:

receiving a third information block;

46. The method of claim 43, comprising:

Receiving a fourth information block;

47. The method in a first node of any one of claims 42, 43, 45, or 46, comprising:

receiving a target signal;

48. The method in a first node of claim 44, comprising:

receiving a target signal;

49. The method of claim 47, wherein the first set of search spaces includes M1 control channel alternatives, and wherein the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, wherein M1 is a positive integer greater than 1, and wherein N1 is a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives that the first node monitors for one serving cell in one downlink bandwidth portion under a first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that the first node monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window.

50. The method of claim 48, wherein the first set of search spaces includes M1 control channel alternatives, and wherein the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, wherein M1 is a positive integer greater than 1, and wherein N1 is a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives that the first node monitors for one serving cell in one downlink bandwidth portion under a first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that the first node monitors for one serving cell in one downlink bandwidth portion under the first subcarrier and in a given time window.

51. The method in a first node of any one of claims 42, 43, 45, 46, 48, 49, or 50, comprising:

receiving a first signaling;

operating the first signal;

52. The method in a first node of claim 44, comprising:

receiving a first signaling;

operating the first signal;

53. The method in a first node of claim 47, comprising:

receiving a first signaling;

operating the first signal;

54. The method in a first node of any one of claims 42, 43, 45, 46, 48, 49, 50, 52, or 53,

55. The method in the first node of claim 44,

56. The method of claim 47, wherein the first node,

57. The method in the first node of claim 51, wherein,

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

59. The method in the second node of claim 58, wherein,

60. The method in a second node according to claim 58 or 59, comprising:

transmitting the first information block and the second information block;

61. The method in a second node according to claim 59, comprising:

transmitting a third information block;

62. The method in a second node according to claim 59, comprising:

Transmitting a fourth information block;

63. A method in a second node according to any of claims 58, 59, 61 or 62, comprising:

transmitting a target signal;

64. The method in the second node of claim 60, comprising:

transmitting a target signal;

65. The method of claim 63 wherein the first set of search spaces includes M1 control channel alternatives and the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, the M1 being a positive integer greater than 1 and the N1 being a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives monitored by a receiver of the target signal for one serving cell in one downlink bandwidth portion under a first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that a receiver of the target signal monitors for one serving cell under the first subcarrier and in one downlink bandwidth portion in a given time window.

66. The method of claim 64, wherein the first set of search spaces includes M1 control channel alternatives, and wherein the number of non-overlapping control channel elements of the first set of search spaces is equal to N1, wherein M1 is a positive integer greater than 1, and wherein N1 is a positive integer greater than 1; the second set of search spaces includes M2 control channel alternatives, and the number of non-overlapping control channel elements of the second set of search spaces is equal to N2, the M2 being a positive integer greater than 1, the N2 being a positive integer greater than 1; the sum of the P1, the M1 and the M2 is greater than a first threshold, and the sum of the P1 and one of the M1 or the M2 is not greater than the first threshold; the sum of the Q1, the N1 and the N2 is larger than a second threshold value, and the sum of the Q1 and one of the N1 or the N2 is not larger than the second threshold value; the first threshold is a maximum number of control channel alternatives monitored by a receiver of the target signal for one serving cell in one downlink bandwidth portion under a first subcarrier and in a given time window; the second threshold is a maximum number of non-overlapping control channel elements that a receiver of the target signal monitors for one serving cell under the first subcarrier and in one downlink bandwidth portion in a given time window.

67. The method in a second node of any one of claims 58, 59, 61, 62, 64, 65, or 66, comprising:

transmitting a first signaling;

transmitting a first signal;

68. The method in the second node of claim 60, comprising:

transmitting a first signaling;

transmitting a first signal;

69. The method in a second node as recited in claim 63, comprising:

transmitting a first signaling;

transmitting a first signal;

70. The method in a second node of any one of claims 58, 59, 61, 62, 64, 65, 66, 68, or 69, comprising:

Transmitting a first signaling;

receiving a first signal;

71. The method in the second node of claim 60, comprising:

transmitting a first signaling;

receiving a first signal;

72. The method in a second node as recited in claim 63, comprising:

transmitting a first signaling;

receiving a first signal;

73. The method in a second node of claim 67, comprising:

transmitting a first signaling;

receiving a first signal;

74. The method according to any one of claims 68, 69, 71, 72 or 73, wherein frequency domain resources occupied by the first signal belong to a target cell, the first signaling indicates the target cell, frequency domain resources occupied by the first set of search spaces belong to a first serving cell, frequency domain resources occupied by the second set of search spaces belong to a second serving cell, and both the first serving cell and the second serving cell are scheduling cells of the target cell; the first serving cell and the second serving cell are different.

75. The method of claim 67, wherein frequency domain resources occupied by said first signal belong to a target cell, said first signaling indicates said target cell, frequency domain resources occupied by said first set of search spaces belong to a first serving cell, frequency domain resources occupied by said second set of search spaces belong to a second serving cell, and both said first serving cell and said second serving cell are scheduling cells of said target cell; the first serving cell and the second serving cell are different.

76. The method of claim 70, wherein the frequency domain resources occupied by the first signal belong to a target cell, the first signaling indicates the target cell, the frequency domain resources occupied by the first set of search spaces belong to a first serving cell, the frequency domain resources occupied by the second set of search spaces belong to a second serving cell, and both the first serving cell and the second serving cell are scheduling cells of the target cell; the first serving cell and the second serving cell are different.

77. The method in a second node of any of claims 58, 59, 61, 62, 64, 65, 66, 68, 69, 71, 72, 73, 75, or 76, wherein the first set of search spaces is associated to a first set of control resources and the second set of search spaces is associated to a second set of control resources; the first control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

78. The method of claim 60, wherein 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

79. The method of claim 63, wherein 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

80. The method of claim 67, wherein said first set of search spaces is associated with a first set of control resources and said second set of search spaces is associated with a second set of control resources; the first control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

81. The method in the second node of claim 70, wherein 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.

82. The method of claim 74, wherein 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 control resource set belongs to a first control resource set pool, and the second control resource set belongs to a second control resource set pool; the index of the first control resource collection pool is different from the index of the second control resource collection pool.