CN114765499A

CN114765499A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN114765499A
Application number: CN202110054526.8A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2022-07-19

Abstract

A method and apparatus in a node used for wireless communication is disclosed. Firstly, a node receives a first information set; subsequently receiving a set of target information, the set of target information being used to determine that a first set of search spaces and a second set of search spaces are associated; monitoring K1 control signaling alternatives; the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces; the first information subset is used to indicate a position of a time domain resource occupied by the first search space, and one domain included in the second information subset is used to simultaneously determine the number of control signaling alternatives included in the first search space set and the number of control signaling alternatives included in the second search space set; the method and the device improve the configuration mode when a plurality of PDCCH search spaces are jointly monitored under M-TRP so as to optimize the system performance.

Description

Method and device used in node of wireless communication

Technical Field

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

Background

In 5G NR (New Radio, New wireless), Massive MIMO (Multi-Input Multi-Output) is one key technology. In massive MIMO, multiple antennas form a narrow beam pointing in a specific direction by Beamforming (Beamforming) to improve communication quality. In the 5G NR, a CORESET (Control Resource Set) and a Search Space Set (Search Space Set) for PDCCH (Physical Downlink Control Channel) monitoring are defined, where each Search Space Set is associated with one CORESET, the CORESET is used for configuring frequency domain resources, mapping of CCE (Control Channel Element) to REG (Resource Element Group), and TCI (Transmission Configuration Indication), and other related information; the search space set is used to configure time domain resources occupied by the PDCCH, supported DCI (Downlink Control Information) Format (Format), supported AL (Aggregation Level), and supported PDCCH Candidate numbers under different Aggregation levels.

In the discussion of NR 17, for Multi-TRP (transmitting and receiving node) scenarios, to increase the reliability of PDCCH, the terminal may jointly detect two PDCCH candidates (candidates) associated together to improve performance.

Disclosure of Invention

The inventor finds that, through research, when two search space sets can be associated together for PDCCH joint detection, a simple configuration mode is to use the two joint search space sets as a new search space set, and configure the new search space set through a high-level signaling; however, the above approach obviously increases signaling overhead and reduces spectrum efficiency.

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

In order to solve the above problem, the present application discloses a method and an apparatus for configuration and calculation of PDCCH alternatives under multiple TRPs. It should be noted that, without conflict, the embodiments and features in the embodiments in the user equipment of the present application may be applied to the base station, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict. Further, although the present application is intended for cellular networks, the present application can also be used for internet of things and car networking. Further, although the present application was originally directed to multi-carrier communication, the present application can also be applied to single-carrier communication. Further, although the present application was originally directed to multi-antenna communication, the present application can also be applied to single-antenna communication. Further, although the original intention of the present application is directed to the terminal and base station scenario, the present application is also applicable to the terminal and terminal, the terminal and relay, the Non-Terrestrial network (NTN), and the communication scenario between the relay and the base station, and similar technical effects in the terminal and base station scenario are obtained. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to the communication scenario of the terminal and the base station) also helps to reduce hardware complexity and cost.

Further, without conflict, embodiments and features of embodiments in a first node device of the present application may apply to a second node device and vice versa. In particular, the terms (Terminology), noun, function, variable in the present application may be explained (if not specifically stated) by referring to the definitions in the 3GPP specification protocol TS (technical specification)36 series, TS38 series, TS37 series.

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

receiving a first set of information;

receiving a target set of information, the target set of information being used to determine that a first set of search spaces and a second set of search spaces are associated, the first set of search spaces and the second set of search spaces being different;

monitoring K1 control signaling alternatives, wherein K1 is a positive integer greater than 1;

wherein the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; the K1 control signaling candidates include at least one given control signaling candidate, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively.

As an embodiment, one technical feature of the above method is that: when the first search space set and the second search space set are used for joint PDCCH monitoring, a partial region for configuring PDCCH Candidate in the first information set for configuring the first search space set, that is, the second information subset, can be used for configuring the second search space set, thereby reducing signaling overhead and improving spectral efficiency.

As an embodiment, one technical feature of the above method is that: when the first search space set and the second search space set are used for joint PDCCH monitoring, a part of the domains for configuring time domain resources in the first information set for configuring the first search space set is still only used for configuring the first search space set, so that the flexibility of configuring the first search space set and the second search space set for joint PDCCH monitoring is improved, and the two search space sets can be conveniently used independently.

According to an aspect of the application, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first subset of information comprising only the first identity of the first identity and the second identity.

As an embodiment, one technical feature of the above method is that: the first set of information is a set of configuration information for the first search space.

According to an aspect of the application, the first subset of information comprises a third identification used to indicate a first set of control resources to which the first search space is associated.

According to an aspect of the application, the second subset of information is used to determine an aggregation level supported by the first set of search spaces and an aggregation level supported by the second set of search spaces.

According to an aspect of the application, the second subset of information is used to determine downlink control information formats supported by the first set of search spaces and downlink control information formats supported by the second set of search spaces.

According to one aspect of the application, comprising:

receiving a second set of information;

wherein the second set of information is used to configure the second set of search spaces; the second set of information comprises a third subset of information comprising the second identity and a fourth subset of information used to indicate a position of a time domain resource occupied by the second search space, the fourth subset of information being updated by the second subset of information.

As an embodiment, one technical feature of the above method is that: the second set of information is a regular set of configuration information for the second set of search spaces.

According to one aspect of the application, the target control signaling alternative set comprises a first control signaling alternative set, a second control signaling alternative set and a third control signaling alternative set; the control signaling alternatives included in the first signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second signaling alternative set all belong to the second search space set, and any control signaling alternative in the third signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second subset of information is used to determine the first set of control signaling alternatives and the third set of control signaling alternatives.

As an embodiment, one technical feature of the above method is that: the second information subset in the first information set configures PDCCH candidates in the second search space set only when the second search space set and the first search space set are jointly used, so as to ensure performance in joint use.

According to an aspect of the application, when the second set of search spaces is associated with the first set of search spaces, the second set of search spaces includes a second set of control signaling alternatives; when the second set of search spaces is not associated with any set of search spaces, the second set of search spaces includes a fourth set of control signaling alternatives; the second set of control signaling alternatives is different from the fourth set of control signaling alternatives; the fourth subset of information is used to determine the fourth set of control signaling alternatives.

As an embodiment, one technical feature of the above method is that: and the second information set is used as a conventional configuration information set of the second search space set, and when the second search space set is independently used as a PDCCH search space, the PDCCH candidates of the second search space set are configured, so that the flexibility of configuration in independent use is ensured.

According to one aspect of the application, comprising:

receiving a first signaling;

receiving a first signal;

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

According to one aspect of the application, comprising:

receiving a first signaling;

transmitting a first signal;

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

sending a first set of information;

transmitting a target set of information, the target set of information being used to determine that a first set of search spaces and a second set of search spaces are associated, the first set of search spaces and the second set of search spaces being different;

determining K1 control signaling alternatives, the K1 being a positive integer greater than 1;

According to an aspect of the application, the first and second sets of search spaces are associated to a first and second identity, respectively, the first subset of information comprising only the first identity of the first and second identities.

According to one aspect of the application, comprising:

sending a second set of information;

According to one aspect of the application, comprising:

sending a first signaling;

transmitting a first signal;

According to one aspect of the application, comprising:

sending a first signaling;

receiving a first signal;

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

a first receiver to receive a first set of information;

a second receiver to receive a set of target information, the set of target information being used to determine that a first set of search spaces and a second set of search spaces are associated, the first set of search spaces and the second set of search spaces being different;

a first transceiver to monitor K1 control signaling alternatives, the K1 being a positive integer greater than 1;

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

a first transmitter to transmit a first set of information;

a second transmitter to transmit a set of target information, the set of target information being used to determine that a first set of search spaces and a second set of search spaces are associated, the first set of search spaces and the second set of search spaces being different;

a second transceiver, configured to determine K1 control signaling alternatives, where K1 is a positive integer greater than 1;

As an example, compared with the conventional scheme, the method has the following advantages:

when the first search space set and the second search space set are used for joint PDCCH monitoring, a partial region for configuring PDCCH Candidate in the first information set for configuring the first search space set, that is, the second information subset, can be used for configuring the second search space set, so as to reduce signaling overhead and improve spectrum efficiency; and a partial region for configuring time domain resources in the first information set for configuring the first search space set is still only used for configuring the first search space set, so that the flexibility of the configuration of the first search space set and the second search space set for joint PDCCH monitoring is improved, and the two search space sets can be conveniently used independently;

the second information set is used as a regular configuration information set of the second search space set, and when the second search space set is independently used as a PDCCH search space, the PDCCH candidates of the second search space set are configured, so as to ensure flexibility of configuration when being independently used.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of the non-limiting embodiments 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 an embodiment of the present application;

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

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

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

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

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

FIG. 8 shows a schematic diagram of a second set of information according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a first search space and a second search space according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of a target control signaling alternative set according to one embodiment of the present application;

FIG. 11 shows a schematic diagram of a fourth control signaling alternative according to an embodiment of the present application;

FIG. 12 shows a schematic diagram of an application scenario according to an embodiment of the present application;

FIG. 13 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the present application;

fig. 14 shows a block diagram of a processing apparatus in a second node device according to an embodiment of the present application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives a first set of information in step 101; receiving a target information set in step 102; k1 control signaling alternatives are monitored in step 103.

In embodiment 1, the target information set is used to determine that a first search space set and a second search space set are associated, and the first search space set and the second search space set are not the same; the K1 is a positive integer greater than 1; the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; the K1 control signaling candidates include at least one given control signaling candidate, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively.

As an embodiment, what carries the target information set is RRC (Radio Resource Control) signaling.

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

As an embodiment, the target Information set includes SearchSpace IE (Information Elements) in TS 38.331.

For one embodiment, the set of target information includes one or more fields (fields) in a SearchSpace IE in TS 38.331.

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

As an embodiment, the target information set includes one or more fields in PDCCH-Config common ie in TS 38.331.

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

As an embodiment, the control signaling alternative in the present application is a PDCCH Candidate.

As an embodiment, the first Set of Search spaces is a Search Space Set.

As an embodiment, the first set of Search spaces is a Search Space.

As an embodiment, the second Set of Search spaces is a Search Space Set.

As an embodiment, the second set of Search spaces is a Search Space.

As an example, the above phrases meaning that the first search space set and the second search space set are related include: the one or more control signaling alternatives comprised by the first set of search spaces and the one or more control signaling alternatives comprised by the second set of search spaces can be merged into one merged control signaling alternative.

As an example, the above phrases meaning that the first search space set and the second search space set are related include: the first and second sets of search spaces can be jointly PDCCH monitored.

As an example, the above phrases meaning that the first search space set and the second search space set are related include: the first set of search spaces and the second set of search spaces can form a third set of search spaces, the third set of search spaces being different from the first set of search spaces and the third set of search spaces being different from the second set of search spaces.

As an example, the above phrases meaning that the first search space set and the second search space set are related include: the first search space set comprises a first control signaling alternative, the second search space set comprises a second control signaling alternative, and the number of times of monitoring, which is counted by the first control signaling alternative and the second control signaling alternative, is a positive integer greater than 2.

As an embodiment, the phrase that the first search space set and the second search space set are different means includes: the SearchSpaceID that first search space set adopted is first sign, the SearchSpaceID that second search space set adopted is the second sign, first sign with the second sign is different.

As an embodiment, the phrase that the first search space set and the second search space set are different means includes: the first set of search spaces is associated to a first set of control resources, the second set of search spaces is associated to a second set of control resources, the frequency domain resources occupied by the first set of control resources being different from the frequency domain resources occupied by the second set of control resources.

As an embodiment, the phrase that the first search space set and the second search space set are different means includes: the first set of search spaces is associated to a first set of control resources, the second set of search spaces is associated to a second set of control resources, the first set of control resources employing a control resource set identity (controlresourcesetidld) different from the control resource set identity employed by the second set of control resources.

As an embodiment, the phrase that the first search space set and the second search space set are different means includes: the time domain resources occupied by the first search space set are different from the time domain resources occupied by the second search space set.

As an embodiment, the phrase that the first search space set and the second search space set are different means includes: the first set of search spaces supports a different DCI Format (Format) than the second set of search spaces.

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

As an embodiment, it is MAC CE that carries the first set of information.

For one embodiment, the first set of information includes a SearchSpace IE in TS 38.331.

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

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

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

As an embodiment, the first set of information is used to configure the first set of search spaces.

As an embodiment, a plurality of fields comprised by the second subset of information is used to determine the number of control signaling alternatives comprised by the first set of search spaces and the number of control signaling alternatives comprised by the second set of search spaces simultaneously.

As an embodiment, a field comprised by the second subset of information is used to determine the number of control signaling alternatives comprised by the first set of search spaces and the number of control signaling alternatives comprised by the second set of search spaces simultaneously.

As one embodiment, the first set of search spaces is a set of Anchor (Anchor) search spaces of the second set of search spaces.

As an embodiment, the first set of information includes a SearchSpace IE in TS 38.331, the first subset of information includes one or more of the following fields included in the SearchSpace IE:

-SearchspaceId，

-ControlResourceSetId，

-monitoringSlotPeriodicityAndOffset，

-duration，

-monitoringSymbolsWithinSlot。

as an embodiment, the first set of information includes SearchSpace IEs in TS 38.331, the second subset of information includes one or more of the following fields included in the SearchSpace IEs:

-nrofcandidates，

-SearchspaceType。

as an embodiment, the first set of information includes a SearchSpace IE in TS 38.331, the second subset of information includes one or more of the following fields included in the SearchSpace IE:

-aggregationLevel1，

-aggregationLevel2，

-aggregationLevel4，

-aggregationLevel8，

-aggregationLevel16，

-dci-FormatX-Y；

wherein X is one of 0, 1 and 2, and Y is one of 0, 1, 2 and 3.

As an embodiment, the first information subset is used to indicate a position of an OFDM (Orthogonal Frequency Division Multiplexing) Symbol (Symbol) occupied by the first search space in one slot.

As an embodiment, the first subset of information is used to indicate a position of a time slot occupied by the first search space.

As an embodiment, the given control signaling alternative consists of the first control signaling alternative and the second control signaling alternative.

As an embodiment, the first search space set is associated to a first control resource set, the second search space set is associated to a second control resource set, the first control resource set belongs to a first control resource set Pool (CORESET Pool), the second control resource set belongs to a second control resource set Pool, the first control resource set Pool and the second control resource set Pool are different.

As an embodiment, the first search space set is associated to a first control resource set, the second search space set is associated to a second control resource set, the first control resource set belongs to a first control resource set Pool (CORESET Pool), the second control resource set belongs to a second control resource set Pool, and the first control resource set Pool and the second control resource set Pool respectively use different coresetpoolndex.

As an embodiment, the control signaling candidate included in the first search space set is Quasi Co-located with a first reference signal resource QCL, the control signaling candidate included in the second search space set is Quasi Co-located with a second reference signal resource QCL, and the first reference signal resource and the second reference signal resource are non-QCL.

As an embodiment, the first control signaling alternative is Quasi Co-located with a first reference signal resource QCL, the second control signaling alternative is Quasi Co-located with a second reference signal resource QCL, and the first reference signal resource and the second reference signal resource are non-QCL.

As a sub-embodiment of this embodiment, the first Reference signal resource includes at least one of a CSI-RS (Channel-State Information Reference Signals) resource or an SSB (SS/PBCH Block, synchronization signal/physical broadcast Channel Block).

As a sub-embodiment of this embodiment, the second reference signal resource comprises at least one of a CSI-RS resource or an SSB.

As an embodiment, the first control signaling alternative and the second control signaling alternative are respectively transmitted by two different TRPs.

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

As an embodiment, the Control signaling alternative in this application is PSCCH (Physical Sidelink Control Channel) Candidate.

As an embodiment, the above phrase that the given control signaling alternative comprises a first control signaling alternative and a second control signaling alternative means that: the CCE occupied by the given control signaling alternative comprises the CCE occupied by the first control signaling alternative and the CCE occupied by the second control signaling alternative.

As an embodiment, the above phrase that the given control signaling alternative comprises a first control signaling alternative and a second control signaling alternative means that: the REs occupied by the given control signaling alternative includes the REs occupied by the first control signaling alternative and the REs occupied by the second control signaling alternative.

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 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include a UE (User Equipment) 201, an NG-RAN (next generation radio access Network) 202, an EPC (Evolved Packet Core)/5G-CN (5G-Core Network,5G Core Network) 210, an HSS (Home Subscriber Server) 220, and an internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 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 b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP, or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 210. Examples of UEs 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptops, Personal Digital Assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband internet of things equipment, machine-type communication equipment, land vehicles, automobiles, wearable equipment, or any other similar functioning device. Those skilled in the art may also refer to 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 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes MME (Mobility Management Entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMF/UPF 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

As an embodiment, the UE201 can receive PDCCH from multiple TRPs simultaneously.

As an embodiment, the UE201 is a terminal with the capability of monitoring multiple beams simultaneously.

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

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

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

As an embodiment, the gNB203 can simultaneously transmit PDCCHs originating from multiple TRPs.

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

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

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

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing 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 PHY 301. 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 PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) 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 data packets, and the PDCP sublayer 304 also provides handover support for a first communication node device to a second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of 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 between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio resource Control) sublayer 306 in layer 3 (layer L3) 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 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the 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 packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device 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., far end UE, server, etc.).

As an example, the wireless protocol architecture in fig. 3 is applicable to the first node in this application.

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

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

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

As an embodiment, the target information set in the present application is generated in the MAC302 or the MAC 352.

As an embodiment, the target information set in the present application is generated in the RRC 306.

As an example, the target information set in the present application is generated in PHY301 or PHY 351.

As an embodiment, the first set of information in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first set of information in this application is generated in the RRC 306.

As an embodiment, the second set of information in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the second set of information in this application is generated in the RRC 306.

As an embodiment, the first signaling in this application is generated in the PHY301 or the PHY 351.

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signal in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the first signal in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signal in this application is generated in the RRC 306.

As an embodiment, the first node is a terminal.

As an embodiment, the second node is a terminal.

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

As an embodiment, the second node is a Grouphead.

As an embodiment, the second node is a TRP (Transmitter Receiver Point).

As an embodiment, the second node is a Cell (Cell).

As an embodiment, the second node is an eNB.

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

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

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

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the 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 communications device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multiple antenna transmit processor 457, a multiple 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 multiple antenna receive processor 472, a multiple 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, at the second communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of the L2 layer. In transmissions from the second communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communications 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., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal constellation 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 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, 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 the physical channels that carry the time-domain multicarrier symbol streams. 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 multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the second communications apparatus 410 to the first communications apparatus 450, each receiver 454 receives a signal through its respective antenna 452 at the first communications apparatus 450. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of 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. Receive processor 456 converts the baseband multicarrier symbol stream after the receive 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 signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered at 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 transmitted by the second communications device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functionality 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 transmissions from the second communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In a transmission from the first communications device 450 to the second communications device 410, a data source 467 is used at the first communications 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 send function at the second communications apparatus 410 described in the transmission from the second communications apparatus 410 to the first communications apparatus 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to said 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, by the multi-antenna transmit processor 457, and then the transmit processor 468 modulates the resulting spatial streams into multi-carrier/single-carrier symbol streams, which are provided to the different antennas 452 via the transmitter 454 after analog precoding/beamforming in the multi-antenna transmit processor 457. 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 the radio frequency symbol stream to the antenna 452.

In a transmission from the first communication device 450 to the second communication device 410, the functionality at the second communication device 410 is similar to the receiving functionality 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 rf signals through its respective antenna 420, converts the received rf 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 multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmission from the first communication device 450 to the second communication device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a 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 configured to, for use with the at least one processor, the first communication device 450 apparatus at least: first receiving a first information set; secondly receiving a target information set, wherein the target information set is used for determining that a first search space set and a second search space set are associated, and the first search space set and the second search space set are not the same; then monitoring K1 control signaling alternatives, wherein K1 is a positive integer larger than 1; the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; the K1 control signaling candidates include at least one given control signaling candidate, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively.

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 result in actions comprising: first receiving a first information set; secondly receiving a target information set, wherein the target information set is used for determining that a first search space set and a second search space set are associated, and the first search space set and the second search space set are not the same; then monitoring K1 control signaling alternatives, wherein K1 is a positive integer greater than 1; the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; the K1 control signaling candidates include at least one given control signaling candidate, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively.

As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: firstly, sending a first information set; secondly, sending a target information set, wherein the target information set is used for determining that a first search space set and a second search space set are associated, and the first search space set and the second search space set are not the same; then determining K1 control signaling alternatives, the K1 being a positive integer greater than 1; the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; the K1 control signaling candidates include at least one given control signaling candidate, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively.

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 result in actions comprising: firstly, sending a first information set; secondly sending a target information set, wherein the target information set is used for determining that a first search space set and a second search space set are associated, and the first search space set and the second search space set are not the same; then determining K1 control signaling alternatives, the K1 being a positive integer greater than 1; the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; the K1 control signaling candidates include at least one given control signaling candidate, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively.

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.

For one embodiment, the first communication device 450 is a UE.

The first communication device 450 is a terminal, as one embodiment.

For one embodiment, the second communication device 410 is a base station.

In one embodiment, the second communication device 410 is a UE.

For one embodiment, the second communication device 410 is a network device.

For one embodiment, the second communication device 410 is a serving cell.

For one embodiment, the second communication device 410 is a TRP.

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

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

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

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

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

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

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

Example 5

Embodiment 5 illustrates a flow chart of a first set of information, as shown in fig. 5. In FIG. 5, a first node U1 communicates with a second node N2 via a wireless link. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application.

For theFirst node U1Receiving a first set of information in step S10; receiving a second set of information in step S11; receiving a target information set in step S12; receiving a first signaling in step S13; the first signal is received in step S14.

For theSecond node N2Sending a first set of information in step S20; sending a second set of information in step S21; transmitting the target information set in step S22; transmitting a first signaling in step S23; the first signal is transmitted in step S24.

In embodiment 5, the target information set is used to determine that a first search space set and a second search space set are associated, the first search space set and the second search space set being different; the K1 is a positive integer greater than 1; the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; at least one given control signaling candidate is included in the K1 control signaling candidates, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively; the second set of information comprises a third subset of information comprising the second identity and a fourth subset of information used to indicate a location of a time domain resource occupied by the second search space, the fourth subset of information being updated by the second subset of information; the first signaling occupies one or more control signaling alternatives selected from the K1 control signaling alternatives, the first signaling being used for scheduling the first signal.

As an embodiment, the first and second sets of search spaces are associated to a first and second identity, respectively, the first subset of information comprising only the first identity of the first and second identities.

As a sub-embodiment of this embodiment, the first identifier is a non-negative integer.

As a sub-embodiment of this embodiment, the second identification is a non-negative integer.

As a sub-embodiment of this embodiment, the first identifier is different from the second identifier.

As a sub-embodiment of this embodiment, the first identifier is a searchspace id.

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

As a sub-embodiment of this embodiment, the first subset of information does not include the second identification.

As an embodiment, the first subset of information comprises a third identity, the third identity being used to indicate a first set of control resources to which the first search space is associated.

As a sub-embodiment of this embodiment, the third identity is ControlResourceSetId.

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

As an embodiment, the second subset of information is used to determine an aggregation level supported by the first set of search spaces and an aggregation level supported by the second set of search spaces.

As a sub-embodiment of this embodiment, the second subset of information is used to indicate the aggregation level supported by the first set of search spaces and the aggregation level supported by the second set of search spaces.

As a sub-embodiment of this embodiment, the first set of search spaces and the second set of search spaces support the same one or more aggregation levels.

As an embodiment, the second subset of information is used to determine downlink control information formats supported by the first set of search spaces and downlink control information formats supported by the second set of search spaces.

As a sub-embodiment of this embodiment, the second information subset is used to indicate downlink control information formats supported by the first search space set and downlink control information formats supported by the second search space set.

As a sub-embodiment of this embodiment, the first search space set and the second search space set support the same one or more downlink control information formats.

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

As an embodiment, it is MAC CE that carries the second set of information.

For one embodiment, the second set of information includes a SearchSpace IE in TS 38.331.

For one embodiment, the second set of information includes one or more fields in a SearchSpace IE in TS 38.331.

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

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

As an embodiment, the second set of information includes a SearchSpace IE in TS 38.331, the third subset of information includes one or more of the following fields included in the SearchSpace IE:

-SearchspaceId，

-ControlResourceSetId，

-monitoringSlotPeriodicityAndOffset，

-duration，

-monitoringSymbolsWithinSlot。

as an embodiment, the second set of information includes SearchSpace IEs in TS 38.331, the fourth subset of information includes one or more of the following fields included in the SearchSpace IEs:

-nrofcandidates，

-SearchspaceType。

as an embodiment, the second set of information includes a SearchSpace IE in TS 38.331, the fourth subset of information includes one or more of the following fields included in the SearchSpace IE:

-aggregationLevel1，

-aggregationLevel2，

-aggregationLevel4，

-aggregationLevel8，

-aggregationLevel16，

-dci-FormatX-Y；

wherein X is one of 0, 1 and 2, and Y is one of 0, 1, 2 and 3.

As an embodiment, the second subset of information is used to indicate a position in one slot of an OFDM symbol occupied by the second search space.

As an embodiment, the second subset of information is used to indicate a position of a time slot occupied by the second search space.

As an example, the above phrase that the fourth information subset is updated by the second information subset includes: when the first node receives the second subset of information and the fourth subset of information, the first node U1 determines the configuration of the second set of search spaces from the second subset of information.

As an example, the above phrase that the fourth information subset is updated by the second information subset includes: the second subset of information has a higher priority than the fourth subset of information.

As an embodiment, the target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set, and a third control signaling alternative set; the control signaling alternatives included in the first signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second signaling alternative set all belong to the second search space set, and any control signaling alternative in the third signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second subset of information is used to determine the first set of control signaling alternatives and the third set of control signaling alternatives.

As a sub-embodiment of this embodiment, the first set of control signaling alternatives includes M1 control signaling alternatives, the second set of control signaling alternatives includes M1 control signaling alternatives, the third set of control signaling alternatives includes M1 control signaling alternatives, and M1 is a positive integer greater than 1.

As an additional embodiment of this sub-embodiment, the K1 is not less than the product of the M1 and 3.

As an additional example of this sub-embodiment, the K1 is equal to the product of the M1 and 3.

As an additional embodiment of this sub-embodiment, the given first control signaling alternative is the ith control signaling alternative from the M1 control signaling alternatives included in the first control signaling alternative set, the given second control signaling alternative is the ith control signaling alternative from the M1 control signaling alternatives included in the second control signaling alternative set, and the given first control signaling alternative and the given second control signaling alternative constitute the ith control signaling alternative from the M1 control signaling alternatives included in the third control signaling alternative set.

As a sub-embodiment of this embodiment, the aggregation level supported by the first control signaling alternative set is the same as the aggregation level supported by the second control signaling alternative set.

As a sub-embodiment of this embodiment, the M1 control signaling alternatives included in the first control signaling alternative set, and any control signaling alternative of the M1 control signaling alternatives included in the first control signaling alternative set is an independent control signaling alternative.

As a sub-embodiment of this embodiment, the M1 control signaling alternatives included in the second control signaling alternative set, and any control signaling alternative among the M1 control signaling alternatives included in the second control signaling alternative set is an independent control signaling alternative.

As a sub-embodiment of this embodiment, the M1 control signaling alternatives included in the third control signaling alternative set, and any one of the M1 control signaling alternatives included in the third control signaling alternative set is a merged control signaling alternative.

As a sub-embodiment of this embodiment, the second subset of information is used to indicate one or more aggregation levels supported by the first set of control signaling alternatives.

As a sub-embodiment of this embodiment, the second subset of information is used to indicate the number of control signaling alternatives included at each aggregation level supported by the first set of control signaling alternatives.

As a sub-embodiment of this embodiment, the second subset of information is used to indicate one or more aggregation levels supported by the third set of control signaling alternatives.

As a sub-embodiment of this embodiment, the second subset of information is used to indicate the number of control signaling alternatives included at each aggregation level supported by the third set of control signaling alternatives.

As an embodiment, when the second set of search spaces is associated with the first set of search spaces, the second set of search spaces includes a second set of control signaling alternatives; when the second set of search spaces is not associated with any set of search spaces, the second set of search spaces includes a fourth set of control signaling alternatives; the second set of control signaling alternatives is different from the fourth set of control signaling alternatives; the fourth subset of information is used to determine the fourth set of control signaling alternatives.

As a sub-embodiment of this embodiment, the fourth set of control signaling alternatives includes a positive integer number of control signaling alternatives greater than 1.

As a sub-embodiment of this embodiment, all the control signaling alternatives included in the fourth control signaling alternative set are independent control signaling alternatives.

As a sub-embodiment of this embodiment, the above sentence that the meaning of the second control signaling alternative set is different from that of the fourth control signaling alternative set includes: the number of control signaling alternatives included in the second set of control signaling alternatives is different from the number of control signaling alternatives included in the fourth set of control signaling alternatives.

As a sub-embodiment of this embodiment, the above sentence that the meaning of the second control signaling alternative set is different from that of the fourth control signaling alternative set includes: the aggregation level supported by the second control signaling alternative set is different from the aggregation level supported by the fourth control signaling alternative set.

As a sub-embodiment of this embodiment, the above sentence that the meaning of the second control signaling alternative set is different from that of the fourth control signaling alternative set includes: the time frequency resource occupied by at least one control signaling alternative in the control signaling alternatives included in the second control signaling alternative set is different from the time frequency resource occupied by any control signaling alternative in the control signaling alternatives included in the fourth control signaling.

As an embodiment, the first signaling is a DCI.

As an embodiment, the first signaling is an SCI.

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

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

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

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

As an embodiment, the Physical layer Channel carrying the first signal includes a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the Physical layer Channel carrying the first signaling includes a psch (Physical Sidelink Shared Channel).

As an embodiment, the transmission Channel carrying the first signal includes DL-SCH (Downlink Shared Channel).

As an embodiment, the transport Channel carrying the first signaling includes SL-SCH (Sidelink Shared Channel).

As an embodiment, the first set of information and the second set of information belong to the same RRC IE.

Example 6

Embodiment 6 illustrates a flow chart of another first set of information, as shown in fig. 6. In FIG. 6, a first node U3 communicates with a second node N4 via a wireless link. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application. Without conflict, the embodiment, sub-embodiment, and dependent embodiment in embodiment 5 can be used in embodiment 6; also, the embodiment, the sub-embodiment, and the subsidiary embodiment in embodiment 6 can be used for embodiment 5 without conflict.

For theFirst node U3Receiving a first set of information in step S30; receiving a second set of information in step S31; receiving a target information set in step S32; receiving a first signaling in step S33; the first signal is transmitted in step S34.

For theSecond node N4Sending a first set of information in step S40; sending a second set of information in step S41; transmitting the target information set in step S42; transmitting a first signaling in step S43; the first signal is received in step S44.

In embodiment 6, the set of target information is used to determine that a first set of search spaces and a second set of search spaces are associated, the first set of search spaces and the second set of search spaces being different; the K1 is a positive integer greater than 1; the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; at least one given control signaling candidate is included in the K1 control signaling candidates, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively; the second set of information comprises a third subset of information comprising the second identity and a fourth subset of information, the third subset of information being used to indicate a location of a time domain resource occupied by the second search space, the fourth subset of information being updated by the second subset of information; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

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

As an embodiment, the Physical layer Channel carrying the first signal includes a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the transmission Channel carrying the first signal includes UL-SCH (Uplink Shared Channel).

Example 7

Embodiment 7 illustrates a schematic diagram of a first set of information, as shown in fig. 7. In fig. 7, the first set of information includes a first subset of information and a second subset of information; the bold boxes in the figure correspond to said first set of information.

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

As an embodiment, the first subset of information is used only to configure the first set of search spaces.

As an embodiment, the second subset of information is used to configure the first set of search spaces and the second set of search spaces when the first search space and the second search space are associated.

As an embodiment, the second subset of information is only used to configure the first set of search spaces when the first search space and the second search space are not associated.

As an embodiment, the first set of information includes the target set of information in the present application.

As an embodiment, the first set of information further comprises a subset of information other than the first subset of information and the second subset of information.

Example 8

Example 8 illustrates a schematic diagram of a second set of information, as shown in fig. 8. In fig. 8, the second set of information includes a third subset of information and a fourth subset of information; the bold boxes in the figure correspond to said second set of information.

As an embodiment, the second set of information is associated to the second set of search spaces.

As an embodiment, the third subset of information is used only for configuring the second set of search spaces.

As an embodiment, the fourth subset of information is disabled (disabled) when the first search space and the second search space are associated.

As an embodiment, the fourth subset of information is enabled when the second search space has no associated set of search spaces.

As an embodiment, the fourth subset of information is used to configure the second set of search spaces when the second search space does not have an associated set of search spaces.

As an embodiment, the second set of information further includes a subset of information other than the third subset of information and the fourth subset of information.

Example 9

Embodiment 9 illustrates a schematic diagram of a first search space and a second search space, as shown in fig. 9. In fig. 9, the time frequency resources occupied by the first search space set and the time frequency resources occupied by the second search space set are orthogonal.

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

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

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

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

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

Example 10

Embodiment 10 illustrates a schematic diagram of an alternative set of target control signaling, as shown in fig. 10. In fig. 10, the target control signaling alternative set includes a first control signaling alternative set, a second control signaling alternative set, and a third control signaling alternative set; the control signaling alternatives included in the first signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second signaling alternative set all belong to the second search space set, and any control signaling alternative in the third signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the rectangles filled with oblique lines in the figure correspond to one control signaling alternative belonging to the first control signaling alternative set, the rectangles filled with squares in the figure correspond to one control signaling alternative belonging to the second control signaling alternative set, and two control signaling alternatives connected by a dotted line form one control signaling alternative belonging to the third control signaling alternative set.

As an embodiment, the first set of signaling alternatives includes a positive integer number of control signaling alternatives greater than 1.

As an embodiment, the second set of signaling alternatives includes a positive integer number of control signaling alternatives greater than 1.

As an embodiment, the third set of signaling alternatives comprises a positive integer number of control signaling alternatives greater than 1.

As an embodiment, the first set of signaling alternatives includes Q1 control signaling alternatives, the Q1 is a positive integer greater than 1; the second set of signaling alternatives comprises Q2 control signaling alternatives, the Q2 being a positive integer greater than 1; the third set of signaling alternatives includes Q3 control signaling alternatives, the Q3 being equal to the smaller of the Q1 and the Q2.

As an embodiment, a subcarrier interval adopted by a control signaling alternative in the first control signaling alternative set is a first subcarrier interval, and a subcarrier interval adopted by a control signaling alternative in the second control signaling alternative set is a second subcarrier interval; the first subcarrier spacing is greater than the second subcarrier spacing; the target set of control signaling alternatives includes a number of control signaling alternatives equal to K1, the K1 is less than a first threshold, the first threshold is a positive integer, and the first subcarrier spacing is used to determine the first threshold.

As an embodiment, a subcarrier interval adopted by a control signaling alternative in the first control signaling alternative set is a first subcarrier interval, and a subcarrier interval adopted by a control signaling alternative in the second control signaling alternative set is a second subcarrier interval; the first subcarrier spacing is less than the second subcarrier spacing; the target set of control signaling alternatives includes a number of control signaling alternatives equal to K1, the K1 is less than a first threshold, the first threshold is a positive integer, and the first subcarrier spacing is used to determine the first threshold.

Example 11

Embodiment 11 illustrates a schematic diagram of a fourth control signaling alternative, as shown in fig. 11. In fig. 11, a rectangle filled with diagonal lines in a drawing corresponds to a control signaling alternative belonging to the second control signaling alternative set, a rectangle filled with a bold frame in the drawing corresponds to a control signaling alternative belonging to the fourth control signaling alternative set, and the second search space set is associated with the second control signaling alternative set and the fourth control signaling alternative set at the same time; when the second set of search spaces is associated with the first set of search spaces, the second set of search spaces includes a second set of control signaling alternatives; when the second set of search spaces is not associated with any set of search spaces, the second set of search spaces includes a fourth set of control signaling alternatives.

As an embodiment, said second set of control signaling alternatives and said fourth set of control signaling alternatives are associated to the same CORESET.

As an embodiment, the second set of control signaling alternatives at least includes one control signaling alternative, and one control signaling alternative included in the fourth set of control signaling alternatives occupies the same REs.

As an embodiment, the fourth set of control signaling alternatives includes at least one control signaling alternative that does not belong to the second set of control signaling alternatives.

As an embodiment, the second control signaling alternative set at least includes one control signaling alternative and one control signaling alternative included in the fourth control signaling alternative set adopts the same aggregation level, and occupies different REs.

Example 12

Example 12 illustrates a schematic diagram of an application scenario, as shown in fig. 12. In fig. 12, a first control resource set and a second control resource set are respectively configured to a first TRP and a second TRP of a first cell, and the first node receives PDCCHs from both TRPs at the same time; the first set of search spaces is associated to the first set of control resources and the second set of search spaces is associated to the second set of control resources.

As an example, two different CORESET Pool indexes are respectively adopted for the first TRP and the second TRP.

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

As an embodiment, there is between the first TRP and the second TRP.

Example 13

Embodiment 13 is a block diagram illustrating the structure of a first node, as shown in fig. 13. In fig. 13, a first node 1300 includes a first receiver 1301, a second receiver 1302 and a first transceiver 1303.

A first receiver 1301, receiving a first set of information;

a second receiver 1302 that receives a target set of information, the target set of information being used to determine that a first set of search spaces and a second set of search spaces are associated, the first set of search spaces and the second set of search spaces being different;

the first transceiver 1303, monitoring K1 control signaling alternatives, where K1 is a positive integer greater than 1;

in embodiment 13, the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; the K1 control signaling candidates include at least one given control signaling candidate, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively.

As an embodiment, the first set of search spaces and the second set of search spaces are associated to a first identity and a second identity, respectively, the first subset of information comprising only the first identity of the first identity and the second identity.

For one embodiment, the first receiver 1301 receives a second set of information; the second set of information is used to configure the second set of search spaces; the second set of information comprises a third subset of information comprising the second identity and a fourth subset of information, the third subset of information being used to indicate a position of a time domain resource occupied by the second search space, the fourth subset of information being updated by the second subset of information.

For one embodiment, the first transceiver 1303 receives a first signal, and the first transceiver 1303 receives a first signal; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

For one embodiment, the first transceiver 1303 receives a first signal, and the first transceiver 1303 transmits the first signal; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

For one embodiment, the first receiver 1301 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, and the controller/processor 459 in embodiment 4.

For one embodiment, the second receiver 1302 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 of embodiment 4.

As one example, the first transceiver 1303 includes at least the first 6 of the antenna 452, the receiver/transmitter 454, the multi-antenna receive processor 458, the multi-antenna transmit processor 457, the receive processor 456, the transmit processor 468, and the controller/processor 459 of example 4.

Example 14

Embodiment 14 illustrates a block diagram of the structure in a second node, as shown in fig. 14. In fig. 14, the second node 1400 comprises a first transmitter 1401, a second transmitter 1402 and a second transceiver 1403.

A first transmitter 1401 that transmits a first set of information;

a second transmitter 1402 that transmits a target set of information, the target set of information being used to determine that a first set of search spaces and a second set of search spaces are associated, the first set of search spaces and the second set of search spaces being different;

the second transceiver 1403, determining K1 control signaling alternatives, the K1 being a positive integer greater than 1;

in embodiment 14, the first set of information comprises a first subset of information and a second subset of information; the first subset of information is used only to configure the first set of search spaces of the first set of search spaces and the second set of search spaces; the first information subset is used for indicating the position of the time domain resource occupied by the first search space, and the domain or domains included in the second information subset is/are used for simultaneously determining the number of the control signaling alternatives included in the first search space set and the number of the control signaling alternatives included in the second search space set; the K1 control signaling candidates include at least one given control signaling candidate, where the given control signaling candidate includes a first control signaling candidate and a second control signaling candidate, and the first control signaling candidate and the second control signaling candidate belong to the first search space set and the second search space set, respectively.

As an example, the first transmitter 1401 transmits a second set of information; the second set of information is used to configure the second set of search spaces; the second set of information comprises a third subset of information comprising the second identity and a fourth subset of information used to indicate a position of a time domain resource occupied by the second search space, the fourth subset of information being updated by the second subset of information.

For one embodiment, the second transceiver 1402 sends a first signaling; and the second transceiver transmits a first signal; the first signaling occupies one or more of the K1 control signaling alternatives, the first signaling being used to schedule the first signal.

For one embodiment, the second transceiver 1402 sends a first signaling; and the second transceiver 1402 receives the first signal; the first signaling occupies one or more control signaling alternatives selected from the K1 control signaling alternatives, the first signaling being used for scheduling the first signal.

As one example, the first transmitter 1401 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 414, the controller/processor 475 of example 4.

For one embodiment, the second transmitter 1402 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 414, and the controller/processor 475 of embodiment 4.

For one embodiment, the second transceiver 1403 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the multi-antenna receive processor 472, the transmit processor 416, the receive processor 470, and the controller/processor 475 in embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in 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 by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The first node in this application includes but not limited to wireless communication devices such as cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, vehicle, RSU, aircraft, unmanned aerial vehicle, telecontrolled aircraft. The second node in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a small cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, an RSU, an unmanned aerial vehicle, a testing device, a transceiver device or a signaling tester simulating a function of a part of a base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

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

a first receiver to receive a first set of information;

2. The first node of claim 1, wherein the first set of search spaces and the second set of search spaces are associated with a first identity and a second identity, respectively, and wherein the first subset of information comprises only the first identity of the first identity and the second identity.

3. The first node according to claim 1 or 2, characterized in that the first subset of information comprises a third identity, which is used to indicate a first set of control resources to which the first search space is associated.

4. The first node of any of claims 1-3, wherein the second subset of information is used to determine an aggregation level supported by the first set of search spaces and an aggregation level supported by the second set of search spaces.

5. The first node of any of claims 1-4, wherein the second subset of information is used to determine downlink control information formats supported by the first set of search spaces and downlink control information formats supported by the second set of search spaces.

6. The first node of any of claims 1-5, wherein the first receiver receives a second set of information, the second set of information being used to configure the second set of search spaces; the second set of information comprises a third subset of information comprising the second identity and a fourth subset of information used to indicate a position of a time domain resource occupied by the second search space, the fourth subset of information being updated by the second subset of information.

7. The first node according to any of claims 1 to 6, wherein the target set of control signaling alternatives comprises a first set of control signaling alternatives, a second set of control signaling alternatives and a third set of control signaling alternatives; the control signaling alternatives included in the first signaling alternative set all belong to the first search space set, the control signaling alternatives included in the second signaling alternative set all belong to the second search space set, and any control signaling alternative in the third signaling alternative set consists of at least one control signaling alternative from the first control signaling alternative set and at least one control signaling alternative from the second control signaling alternative set; the second subset of information is used to determine the first set of control signaling alternatives and the third set of control signaling alternatives.

8. The first node of claim 6 or 7, wherein the second set of search spaces comprises a second set of control signaling alternatives when the second set of search spaces is associated with the first set of search spaces; when the second set of search spaces is not associated with any set of search spaces, the second set of search spaces includes a fourth set of control signaling alternatives; the second set of control signaling alternatives is different from the fourth set of control signaling alternatives; the fourth subset of information is used to determine the fourth set of control signaling alternatives.

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

a first transmitter to transmit a first set of information;

a second transmitter to transmit a set of target information, the set of target information used to determine a first set of search spaces and a second set of search spaces are associated, the first set of search spaces and the second set of search spaces being different;

10. A method in a first node in wireless communication, comprising:

receiving a first set of information;

11. A method in a second node in wireless communication, comprising:

sending a first set of information;