Patent ID: 12231359

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the present disclosure is described below in further details in conjunction with the drawings. It should be noted that the embodiments of the present disclosure and the characteristics of the embodiments may be arbitrarily combined if no conflict is caused.

Embodiment 1

Embodiment 1 illustrates a flowchart of first information and a first signaling according to one embodiment of the present disclosure, as shown inFIG.1. InFIG.1, each box represents a step. Particularly, the sequential order of steps in these boxes does not necessarily mean that the steps are chronologically arranged.

In embodiment 1, a first communication node in the present disclosure receives first information in step101, the first information is used to determine a first payload size, and the first payload size is a positive integer; monitors a first signaling in a target search space in step102, a payload size of a payload of the first signaling is equal to a target payload size; herein, the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes.

In one embodiment, the first information is transmitted through an air interface.

In one embodiment, the first information is transmitted through a radio interface.

In one embodiment, the first information is transmitted through a PC5 interface.

In one embodiment, the first information is transmitted through a Uu interface.

In one embodiment, the first information is transmitted through sidelink.

In one embodiment, the first information is carried by a baseband signal.

In one embodiment, the first information is carried by a Radio Frequency (RF) signal.

In one embodiment, the first information is transferred inside the first communication node.

In one embodiment, the first information comprises higher-layer information, and the first information is transferred from a higher layer of the first communication node to a physical layer of the first communication node.

In one embodiment, the first information is pre-configured.

In one embodiment, the first information comprises all or part of a pre-configured Radio Resource Control (RRC) Information Element (IE).

In one embodiment, the first information comprises physical-layer information.

In one embodiment, the first information comprises dynamic information.

In one embodiment, the first information is semi-persistent information.

In one embodiment, the first information comprises all or partial information in a System Information Block (SIB).

In one embodiment, the first information comprises all or partial information in a Master Information Block (MIB).

In one embodiment, the first information comprises all or part of an RRC signaling.

In one embodiment, the first information is cell specific/cell common.

In one embodiment, the first information is UE specific/dedicated.

In one embodiment, the first information is zone-specific.

In one embodiment, the first information is broadcast.

In one embodiment, the first information is unicast.

In one embodiment, the first information comprises all or partial fields in DCI.

In one embodiment, the first information is transmitted through a Downlink Shared Channel (DL-SCH).

In one embodiment, the first information is transmitted through a Physical Downlink Shared Channel (PDSCH).

In one embodiment, the first information is transmitted through a Sidelink Shared Channel (SL-SCH).

In one embodiment, the first information is transmitted through a Physical Sidelink Shared Channel (PSSCH).

In one embodiment, the first information is transmitted through a Physical Downlink Control Channel (PDCCH).

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information is used by the first communication node in the present disclosure to determine the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information is used to directly indicate the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information is used to indirectly indicate the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information is used to explicitly indicate the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information is used to implicitly indicate the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information indicates a first Bandwidth Part (BWP), and a frequency-domain bandwidth occupied by the first BWP is used to determine the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information indicates a first BWP, and a number of Physical Resource Blocks (PRBs) occupied by the first BWP is used to determine the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information indicates a first BWP, a number of PRBs occupied by the first BWP is used to determine the first payload size, and the first BWP is used for sidelink.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information indicates a first frequency-domain resource pool, and a number of PRBs occupied by the first frequency-domain resource pool in frequency domain is used to determine the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information indicates a first candidate delay set, the first candidate delay set comprises at least one candidate delay, and a number of candidate delay(s) comprised in the first candidate delay set is used to determine the first payload size.

In one embodiment, the above phrase of “the first information being used to determine a first payload size” includes the following meaning: the first information indicates whether a second field is carried in the first signaling, and whether the second field is carried in the first signaling is used to determine the first payload size.

In one embodiment, the first payload size is greater than 1.

In one embodiment, the first payload size is not less than 12.

In one embodiment, the first payload size is equal to 12.

In one embodiment, the first payload size is greater than 12.

In one embodiment, the first payload size is a number of information bits comprised in a DCI format.

In one embodiment, the first payload size is a number of information bits comprised in a DCI format adopted by the first signaling.

In one embodiment, the first payload size is a number of information bits comprised in an SCI format.

In one embodiment, the first payload size is a number of information bits comprised in an SCI format adopted by the first signaling.

In one embodiment, the first payload size is a number of information bits comprised in the first signaling.

In one embodiment, the first payload size is a sum of a number of information bits comprised in a DCI format and a number of padding bits.

In one embodiment, the first payload size is a payload size of a DCI payload obtained by adding padding bits in a DCI format comprising less than 12 information bits, and the first payload size is equal to 12.

In one embodiment, the first payload size is a sum of numbers of bits comprised in all fields in the first signaling before truncating or adding padding bits.

In one embodiment, the first payload size is a number of information bits comprised in the first signaling before truncating or adding padding bits.

In one embodiment, the first payload size is a sum of numbers of bits comprised in all fields of a DCI format adopted by the first signaling before truncating or adding padding bits.

In one embodiment, the first bit sequence in the present disclosure is used to generate the first signaling, and the first payload size is equal to a number of bits comprised in the first bit sequence.

In one embodiment, the first payload size is equal to a number of bits comprised in a bit sequence used to generate the first signaling.

In one embodiment, the first payload size is a number of information bits that can be carried by the first signaling determined by the first communication node in the present disclosure itself.

In one embodiment, the target search space is a search space set.

In one embodiment, the target search space is a CSS or a USS.

In one embodiment, the target search space is a Common Search Space Set (CSS Set) or a UE-Specific Search Space Set (USS Set).

In one embodiment, the target search space comprises at least one PDCCH candidate.

In one embodiment, the target search space comprises at least one Physical Sidelink Control Channel (PSCCH) candidate.

In one embodiment, the target search space comprises at least one candidate time-frequency resource set of the first signaling.

In one embodiment, the target search space comprises at least one time-frequency resource set that may be used to transmit the first signaling.

In one embodiment, the target search space comprises at least one candidate of the first signaling being used by the first communication node in the present disclosure to blindly detect the first signaling.

In one embodiment, the target search space comprises a group of at least one time-frequency resource set that may be used to transmit the first signaling and a DCI format that may be adopted by the first signaling.

In one embodiment, the target search space comprises a group of at least one time-frequency resource set that may be used to transmit the first signaling and an SCI format that may be adopted by the first signaling.

In one embodiment, the first signaling is a physical-layer signaling.

In one embodiment, the first signaling is a dynamic signaling.

In one embodiment, the first signaling carries DCI.

In one embodiment, the first signaling carries SCI.

In one embodiment, the first signaling is a PDCCH.

In one embodiment, the first signaling is a PSCCH.

In one embodiment, the first signaling is UE-specific.

In one embodiment, the first signaling is cell-specific.

In one embodiment, the first signaling is a PDCCH scrambled by a UE-Specific Radio Network Temporary Identity (RNTI).

In one embodiment, the first signaling is transmitted through an air interface.

In one embodiment, the first signaling is transmitted through a radio interface.

In one embodiment, the first signaling is transmitted through a PC5 interface.

In one embodiment, the first signaling is transmitted through a Uu interface.

In one embodiment, the first signaling is transmitted through sidelink.

In one embodiment, the first signaling is carried by a baseband signal.

In one embodiment, the first signaling is carried by an RF signal.

In one embodiment, a bit sequence sequentially goes through padding bit insertion, CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources and OFDM Baseband Signal Generation to obtain the first signaling.

In one embodiment, a bit sequence sequentially goes through padding bit insertion, CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources, Modulation and Upconversion and OFDM Baseband Signal Generation to obtain the first signaling.

In one embodiment, a bit sequence sequentially goes through bit truncation, CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources and OFDM Baseband Signal Generation to obtain the first signaling.

In one embodiment, a bit sequence sequentially goes through bit truncation, CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources, Modulation and Upconversion and OFDM Baseband Signal Generation to obtain the first signaling.

In one embodiment, a bit sequence sequentially goes through CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources and OFDM Baseband Signal Generation to obtain the first signaling.

In one embodiment, a bit sequence sequentially goes through CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources, Modulation and Upconversion and OFDM Baseband Signal Generation to obtain the first signaling.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: monitoring the first signaling in the target search space according to a DCI format adopted by the first signaling.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: monitoring the first signaling in the target search space according to an SCI format adopted by the first signaling.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: decoding each PDCCH candidate in the target search space according to a DCI format adopted by the first signaling.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: decoding each PSCCH candidate in the target search space according to an SCI format adopted by the first signaling.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: blindly decoding each PDCCH candidate in the target search space according to a DCI format adopted by the first signaling.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: blindly decoding each PSCCH candidate in the target search space according to an SCI format adopted by the first signaling.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: decoding each PDCCH candidate in the target search space and determining whether there exists a PDCCH candidate in the target search space being used to carry the first signaling through whether a CRC check is passed.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: decoding each PSCCH candidate in the target search space and determining whether there exists a PSCCH candidate in the target search space being used to carry the first signaling through whether a CRC check is passed.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: decoding each PDCCH candidate in the target search space and determining whether there exists a PDCCH candidate in the target search space being used to carry the first signaling through whether a CRC check scrambled by an RNTI is passed.

In one embodiment, the above phrase of “monitoring a first signaling in a target search space” includes the following meaning: decoding each PSCCH candidate in the target search space and determining whether there exists a PSCCH candidate in the target search space being used to carry the first signaling through whether a CRC check scrambled by an RNTI is passed.

In one embodiment, a second bit sequence is used to generate the first signaling through channel coding, a payload of the first signaling is a bit set composed of bits other than a CRC bit in the second bit sequence, and the second bit sequence comprises at least one bit.

In one embodiment, a payload of the firsts signaling is a bit set composed of bits comprised in DCI of the first signaling.

In one embodiment, a payload of the first signaling is a bit set composed of bits other than a CRC bit in bits generated at PHY carried by the first signaling.

In one embodiment, a payload of the first signaling is a bit set composed of bits used to calculate a PHY CRC check bit in the first signaling.

In one embodiment, a payload of the first signaling is an information bit carried by the first signaling, or a payload of the first signaling is a bit after an information bit carried by the first signaling goes through padding bits adding and bit truncation.

In one embodiment, a payload of the first signaling is bits and padding bits (when padding bits exist) in all fields in a DCI format adopted by the first signaling.

In one embodiment, a payload size of a payload of the first signaling refers to a number of bits comprised in a payload of the first signaling.

In one embodiment, a payload size of a payload of the first signaling refers to a bit width of a bit comprised in a payload of the first signaling.

In one embodiment, the target payload size is a positive integer.

In one embodiment, when X is greater than 1, any two of the X payload sizes are not equal.

In one embodiment, when X is greater than 1, there exist two of the X payload sizes being equal.

In one embodiment, any of the X payload sizes is not less than 12.

In one embodiment, any of the X payload sizes is greater than 12.

In one embodiment, there exists one of the X payload sizes being equal to 12.

In one embodiment, any of the X payload sizes is a payload size of a DCI adopting a DCI format.

In one embodiment, there exists one of the X payload size(s) being a payload size of a payload obtained after a DCI format goes through adding padding bits.

In one embodiment, there exists one of the X payload size(s) being a payload size of a payload obtained after a DCI format goes through bit truncation.

In one embodiment, any of the X payload sizes is a payload size of DCI without adding padding bits adopting a DCI format.

In one embodiment, there exists one of the X payload size(s) being equal to a payload size of DCI Format 1-0.

In one embodiment, the X payload size(s) is(are) obtained after through DCI size alignment in the target search space.

In one embodiment, the X payload size(s) is(are) obtained after through DCI size alignment in section 7.3.1.0 of 3GPP TS 38.212 (v15.6.0) in the target search space.

In one embodiment, X is equal to 1, and the X payload size is equal to a payload size of DCI Format 1-0.

In one embodiment, X is equal to 2, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-1 and DCI Format 0-1.

In one embodiment, X is equal to 2, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-0 and DCI Format 2-0.

In one embodiment, X is equal to 2, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-0 and DCI Format 2-1.

In one embodiment, X is equal to 2, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-0 and DCI Format 1-1.

In one embodiment, X is equal to 2, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-0 and DCI Format 0-1.

In one embodiment, X is equal to 2, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-1 and DCI Format 0-1.

In one embodiment, X is equal to 3, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-0, DCI Format 2-0 and DCI Format 2-1.

In one embodiment, X is equal to 3, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-0, DCI Format 0-1 and DCI Format 1-1.

In one embodiment, X is greater than 1.

In one embodiment, X is equal to one of 1, 2, 3, or 4.

In one embodiment, the above phrase of “the target search space being used to determine X payload size(s)” includes the following meaning: the target search space is used by the first communication node in the present disclosure to determine the X payload size(s).

In one embodiment, the above phrase of “the target search space being used to determine X payload size(s)” includes the following meaning: a type of the target search space is used to determine the X payload size(s).

In one embodiment, the above phrase of “the target search space being used to determine X payload size(s)” includes the following meaning: whether the target search space is a CSS or a USS is used to determine the X payload size(s).

In one embodiment, the above phrase of “the target search space being used to determine X payload size(s)” includes the following meaning: the X payload size(s) is(are) related to whether the target search space is a CSS or a USS.

In one embodiment, the above phrase of “the target search space being used to determine X payload size(s)” includes the following meaning: any of the X payload size(s) is a payload size in a target payload size set, the target search space is used to determine the X payload size(s) out of the target payload size set, and the target payload size set is configurable, or the target payload size set is pre-defined.

In one embodiment, the above phrase of “the target search space being used to determine X payload size(s)” includes the following meaning: when the target search space is a CSS and X is equal to 1, the X payload size(s) is(are) equal to a payload size of DCI Format 1-0; when the target search space is a CSS and X is equal to 2, the X payload sizes are respectively equal to payload sizes of DCI Format 1-0 and DCI Format 2-0, or the X payload sizes are respectively equal to payload sizes of DCI Format 1-0 and DCI Format 2-1; when the target search space is a CSS and X is equal to 3, and the X payload sizes are respectively equal to payload sizes of DCI Format 1-0, DCI Format 2-0 and DCI Format 2-1; when the target search space is a USS and X is equal to 1, the X payload size is equal to a payload size of DCI Format 1-0; when the target search space is a USS and X is equal to 2, the X payload sizes are respectively equal to payload sizes of DCI Format 1-0 and DCI Format 1-1, or the X payload sizes are respectively equal to payload sizes of DCI Format 1-0 and DCI Format 0-1, or the X payload sizes are respectively equal to payload sizes of DCI Format 1-1 and DCI Format 0-1; when the target search space is a USS and X is equal to 3, the X payload sizes are respectively equal to payload sizes of DCI Format 1-0, DCI Format 0-1 and DCI Format 1-1.

In one embodiment, the above phrase of “the target search space being used to determine X payload size(s)” includes the following meaning: when the target search space is a CSS or USS, the target search space determines the X payload size(s) according to DCI size alignment in section 7.3.1.0 in 3GPP TS 38.212 (v15.6.0).

In one embodiment, the above phrase of “when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size being equal to a payload size not less than the first payload size with a minimum difference value between the first payload size among the X payload sizes” includes the following meaning: when X is greater than 1 and there exists one of the X payload sizes being equal to the first payload size, the target payload size is equal to the first payload size; when X is greater than 1 and any of the X payload sizes is not less than the first payload size and there exists one of the X payload sizes being greater than the first payload size, the target payload size is equal to a payload size greater than the first payload size with a minimum difference value between the first payload size among the X payload sizes.

In one embodiment, the above phrase of “when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size being equal to a payload size not less than the first payload size with a smallest difference value with the first payload size among the X payload sizes” includes the following meaning: when X is greater than 1 and there exists one of the X payload sizes being equal to the first payload size, the target payload size is equal to the first payload size; when X is greater than 1 and any of the X payload sizes is not less than the first payload size and there exists one of the X payload sizes being greater than the first payload size, the target payload size is greater than the first payload size, and the target payload size is equal to a minimum payload size greater than the first payload size among the X payload sizes.

In one embodiment, the above phrase of “when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size being equal to a payload size not less than the first payload size with a smallest difference value with the first payload size among the X payload sizes” includes the following meaning: when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size.

In one embodiment, when there exists one of the X payload size(s) being equal to the first payload size, the target payload size is equal to the first payload size.

In one embodiment, the above phrase of “when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size being equal to a payload size not less than the first payload size with a minimum difference value with the first payload size among the X payload sizes” includes the following meaning: when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, each of X1 payload size(s) is a payload size not less than the first payload size among the X payload sizes, X1 is a positive integer not greater than X, and the target payload size is equal to a minimum payload size among the X1 payload size(s).

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present disclosure, as shown inFIG.2.FIG.2is a diagram illustrating a network architecture200of 5G NR, Long-Term Evolution (LTE), and Long-Term Evolution Advanced (LTE-A) systems. The 5G NR or LTE network architecture200may be called an Evolved Packet System (EPS)200The EPS200may comprise one or more UEs201, an NG-RAN202, an Evolved Packet Core/5G-Core Network (EPC/5G-CN)210, a Home Subscriber Server (HSS)220and an Internet Service230. The EPS200may be interconnected with other access networks. For simple description, the entities/interfaces are not shown. As shown inFIG.2, the EPS200provides packet switching services. Those skilled in the art will readily understand that various concepts presented throughout the present disclosure can be extended to networks providing circuit switching services or other cellular networks. The NG-RAN202comprises an NR node B (gNB)203and other gNBs204. The gNB203provides UE201-oriented user plane and control plane protocol terminations. The gNB203may be connected to other gNBs204via an Xn interface (for example, backhaul). The gNB203may be called a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Base Service Set (BSS), an Extended Service Set (ESS), a Transmitter Receiver Point (TRP) or some other applicable terms. In V2X network, the gNB203may be a base station, a terrestrial base station relayed via a satellites or a Road Side Unit(RSU) and etc. The gNB203provides an access point of the EPC/5G-CN210for the UE201. Examples of the UE201include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistant (PDA), Satellite Radios, Global Positioning Systems (GPSs), multimedia devices, video devices, digital audio players (for example, MP3 players), cameras, game consoles, unmanned aerial vehicles (UAV), aircrafts, narrow-band physical network devices, machine-type communication devices, land vehicles, automobiles, communication units in vehicles, wearable devices, or any other similar functional devices. Those skilled in the art also can call the UE201a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a radio 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 proxy, a mobile client, a client, a vehicle terminal, V2X equipment or some other appropriate terms. The gNB203is connected to the EPC/5G-CN210via an S1/NG interface. The EPC/5G-CN210comprises a Mobility Management Entity/Authentication Management Field/User Plane Function (MME/AMF/UPF)211, other MMEs/AMFs/UPFs214, a Service Gateway (S-GW)212and a Packet Date Network Gateway (P-GW)213. The MME/AMF/UPF211is a control node for processing a signaling between the UE201and the EPC/5G-CN210. Generally, the MME/AMF/UPF211provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW212, the S-GW212is connected to the P-GW213. The P-GW213provides UE IP address allocation and other functions. The P-GW213is connected to the Internet Service230. The Internet Service230comprises IP services corresponding to operators, specifically including Internet, Intranet, IP Multimedia Subsystem (IMS) and Packet Switching Streaming Services (PSS).

In one embodiment, the UE201corresponds to the first communication node in the present disclosure.

In one embodiment, the UE201supports transmission in sidelink.

In one embodiment, the UE201supports a PC5 interface.

In one embodiment, the UE201supports Internet of Vehicles.

In one embodiment, the UE201supports V2X services.

In one embodiment, the UE201supports a new DCI format introduced after the R15 version.

In one embodiment, the gNB203corresponds to the second communication node in the present disclosure.

In one embodiment, the gNB203supports transmission in sidelink.

In one embodiment, the gNB203supports a PC5 interface.

In one embodiment, the gNB203supports Internet of Vehicles.

In one embodiment, the gNB203supports V2X services.

In one embodiment, the gNB203supports a new DCI format introduced after the R15 version.

Embodiment 3

Embodiment 3 illustrates a schematic diagram of an example of a radio protocol architecture of a user plane and a control plane according to one embodiment of the present disclosure, as shown inFIG.3.FIG.3is a schematic diagram illustrating an embodiment of a radio protocol architecture of a user plane350and a control plane300. InFIG.3, the radio protocol architecture for a first communication node (UE, gNB or vehicle equipment or vehicle-mounted communication modules in V2X) and a second communication node (gNB, UE or vehicle equipment or vehicle-mounted communication modules in V2X), or between two UEs is represented by three layers, which are a layer1, a layer2and a layer3, respectively. The layer1(L1) is the lowest layer and performs signal processing functions of various PHY layers. The L1is called PHY301in the present disclosure. The layer2(L2)305is above the PHY301, and is in charge of the link between the first communication node and the second communication node via the PHY301. L2305comprises a Medium Access Control (MAC) sublayer302, a Radio Link Control (RLC) sublayer303and a Packet Data Convergence Protocol (PDCP) sublayer304. All the three sublayers terminate at the second communication node. The PDCP sublayer304provides multiplexing among variable radio bearers and logical channels. The PDCP sublayer304provides security by encrypting a packet and provides support for a first communication node handover between second communication nodes. The RLC sublayer303provides segmentation and reassembling of a higher-layer packet, retransmission of a lost packet, and reordering of a data packet so as to compensate the disordered receiving caused by HARQ. The MAC sublayer302provides multiplexing between a logical channel and a transport channel. The MAC sublayer302is also responsible for allocating between first communication nodes various radio resources (i.e., resource block) in a cell. The MAC sublayer302is also in charge of HARQ operation. The RRC sublayer306in layer3(L3) of the control plane300is responsible for acquiring radio resources (i.e., radio bearer) and configuring the lower layer with an RRC signaling between a second communication node and a first communication node device. The radio protocol architecture of the user plane350comprises layer1(L1) and layer2(L2). In the user plane350, the radio protocol architecture for the first communication node and the second communication node is almost the same as the corresponding layer and sublayer in the control plane300for physical layer351, PDCP sublayer354, RLC sublayer353and MAC sublayer352in L2layer355, but the PDCP sublayer354also provides a header compression for a higher-layer packet so as to reduce a radio transmission overhead. The L2layer355in the user plane350also includes Service Data Adaptation Protocol (SDAP) sublayer356, which is responsible for the mapping between QoS flow and Data Radio Bearer (DRB) to support the diversity of traffic. Although not described inFIG.3, the first communication node may comprise several higher layers above the L2layer355, such as a network layer (e.g., IP layer) terminated at a P-GW of the network side and an application layer terminated at the other side of the connection (e.g., a peer UE, a server, etc.).

In one embodiment, the radio protocol architecture inFIG.3is applicable to the first communication node in the present disclosure.

In one embodiment, the radio protocol architecture inFIG.3is applicable to the second communication node in the present disclosure.

In one embodiment, the first information in the present disclosure is generated by the RRC306.

In one embodiment, the first information in the present disclosure is generated by the MAC302or the MAC352.

In one embodiment, the first information in the present disclosure is generated by the PHY301or the PHY351.

In one embodiment, the first signaling in the present disclosure is generated by the RRC306.

In one embodiment, the first signaling in the present disclosure is generated by the MAC302or the MAC352.

In one embodiment, the first signaling in the present disclosure is generated by the PHY301or the PHY351.

In one embodiment, the second information in the present disclosure is generated by the RRC306.

In one embodiment, the second information in the present disclosure is generated by the MAC302or the MAC352.

In one embodiment, the second information in the present disclosure is generated by the PHY301or the PHY351.

In one embodiment, the first signal in the present disclosure is generated by the RRC306.

In one embodiment, the first signal in the present disclosure is generated by the MAC302or the MAC352.

In one embodiment, the first signal in the present disclosure is generated by the PHY301or the PHY351.

Embodiment 4

Embodiment 4 illustrates a schematic diagram of a first communication node and a second communication node in the present disclosure, as shown inFIG.4.

The first communication node (450) may comprise a controller/processor490, a data source/buffer480, a receiving processor452, a transmitter/receiver456and a transmitting processor455, wherein the transmitter/receiver456comprises an antenna460. The data source/buffer480provides a higher-layer packet to the controller/processor490, the controller/processor490provides header compression and decompression, encryption and decryption, packet segmentation and reordering and multiplexing and demultiplexing between a logical channel and a transport channel so as to implement the L2layer and above layer protocols used for the user plane and the control plane. The higher layer packet may comprise data or control information, such as DL-SCH, UL-SCH or SL-SCH. The transmitting processor455performs various signal transmitting processing functions used for the L1layer (that is, PHY), including coding, interleaving, scrambling, modulation, power control/allocation and generation of physical layer control signaling. the receiving processor452performs various signal receiving processing functions used for the L1layer (that is, PHY), including decoding, deinterleaving, descrambling, demodulation, deprecoding and extraction of physical layer control signaling. The transmitter456is configured to convert a baseband signal provided by the transmitting processor455into a radio frequency (RF) signal to be transmitted via the antenna460. The receiver456converts the RF signal received via the antenna460into a baseband signal and provides the baseband signal to the receiving processor452.

The second communication node (410) may comprise a controller/processor440, a data source/buffer430, a receiving processor412, a transmitter/receiver416and a transmitting processor415, wherein the transmitter/receiver416comprises an antenna420. The data source/buffer430provides a higher layer packet to the controller/processor440, the controller/processor440provides header compression and decompression, encryption and decoding, packet segmentation and reordering, as well as a multiplexing between a logical channel and a transport channel so as to implement the L2layer protocols used for the user plane and the control plane; The higher layer packet may comprise data or control information, such as DL-SCH or UL-SCH or SL-SCH. The transmitting processor415provides various signal transmitting processing functions used for the L1layer (that is, PHY), including coding, interleaving, scrambling, modulating, power control/allocation, precoding and physical layer control signaling (including synchronization signal and reference signal) generation. The receiving processor412provides various signaling receiving processing functions used for the L1layer (i.e., PHY), including decoding, deinterleaving, descrambling, demodulation, deprecoding and extraction of physical layer signaling. The transmitter416is configured to convert a baseband signal provided by the transmitting processor415into a radio frequency (RF) signal to be transmitted via the antenna420. The receiver416converts the RF signal received via the antenna420into a baseband signal and provides the baseband signal to the receiving processor412.

In Downlink (DL), a higher-layer packet, such as high-layer information comprised in the first information, the second information, the first signaling (if higher-layer information is comprised in the first signaling) and the first signal (when the first signal is transmitted from the second communication node to the first communication node) in the present disclosure, is provided to the controller/processor440. The controller/processor440implements the functionality of the L2layer and the higher layer. In DL transmission, the controller/processor440provides header compression, encryption, packet segmentation and reordering and multiplexing between a logical channel and a transport channel, as well as radio resource allocation for the first communication node450based on varied priorities. The controller/processor440is also in charge of HARQ operation, retransmission of a lost packet, and a signaling to the first communication node450, for instance, the first information, the second information, the first signaling (if higher-layer information is comprised in the first signaling) and the first signal (when the first signal is transmitted from the second communication node to the first communication node) in the present disclosure are all generated in the controller/processor440. The transmitting processor415implements various signal processing functions on the L1layer (i.e., physical layer), including coding, interleaving, scrambling, modulation, power control/distribution, precoding, and generation of a physical-layer control signaling, etc. The generation of physical-layer signals of the first information, the second information, the first signaling and the first signal in the present disclosure are completed by the transmitting processor415, and the transmitting processor415divides the generated modulation symbols into parallel streams and maps each stream to a corresponding multi-carrier subcarrier and/or a multi-carrier symbol, which are then transmitted in the form of a radio-frequency signal by the transmitting processor415mapping to the antenna420via the transmitter416. At the receiving side, each receiver456receives an RF signal via a corresponding antenna460, each receiver456recovers baseband information modulated to the RF carrier and provides the baseband information to the receiving processor452. The receiving processor452provides various signal receiving functions for the L1layer. The signal receiving processing functions include reception of physical layer signals carrying the first information, the second information, the first signaling (if the higher-layer information is comprised in the first signaling) and the first signal (when the first signal is transmitted from the second communication node to the first communication node) in the present disclosure, demodulation of multicarrier symbols in multicarrier symbol streams based on each modulation scheme (e.g., BPSK, QPSK), and then descrambling, decoding and de-interleaving of the demodulated symbols so as to recover data or control signals transmitted by the second communication node410on a physical channel, and the data or control signals are later provided to the controller/processor490. The controller/processor490is responsible for the L2layer and above layers. The controller/processor490interprets the first information, the second information, the first signaling (if higher layer information is comprised in the first signaling) and the first signal (when the first signal is transmitted from the second communication node to the first communication node). The controller/processor can be connected to a memory480that stores program code and data. The memory480may be called a computer readable medium.

In UL transmission, the data source/memory480provides higher-layer data to the controller/processor490. The data source/buffer480represents all protocol layers of the L2layer and above the L2layer. The controller/processor490performs the L2layer protocol for the user plane and the control plane by providing header compression, encryption, packet segmentation and reordering, as well as multiplexing between a logic channel and a transport channel through radio resources allocation based on the second communication node410. The controller/processor490is also in charge of HARQ operation, retransmission of a lost packet, and a signaling to the second communication node410. The first signal in the present disclosure (when the first signal is transmitted from the first communication node to the second communication node) is generated at the data source/buffer480or at the controller/processor490. The transmitting processor455provides various signal transmitting processing functions for the L1layer (that is, PHY). The generation of a physical layer signal carrying the first signal in the present disclosure is completed in the transmitting processor415. The signal transmission processing functions include coding and interleaving so as to facilitate Forward Error Correction (FEC) at the UE450as well as modulation of baseband signals based on various modulation schemes (i.e., BPSK, QPSK). The modulated symbols are divided into parallel streams and each stream is mapped onto a corresponding multicarrier subcarrier and/or multicarrier symbol, which is later mapped from the transmitting processor455to the antenna460via the transmitter456to be transmitted in the form of RF signal. The receiver416receives a radio-frequency signal via its corresponding antenna420, and each receiver416recovers baseband information modulated to a radio-frequency carrier, and supplies the baseband information to the receiving processor412. The receiving processor412provides various signal receiving and processing functions for the L1layer (i.e., PHY), including receiving and processing a physical layer signal carrying the first signal, the signal receiving and processing function includes acquisition of multi-carrier symbol streams, demodulation based on each modulation scheme (i.e., BPSK, QPSK), then the decoding and de-interleaving to recover data and/or control signals originally transmitted by the first communication node450on the PHY. The data and the control signal are then provided to the controller/processor440. The controller/processor440performs functions of L2layer, including interpreting information carried by the first signal in the present disclosure. The controller/processor can be connected to a buffer430that stores program code and data. The buffer430may be called a computer readable medium.

When the sidelink transmission is performed, it is similar to the uplink transmission described above.

In one embodiment, the first communication node450comprises at least one processor and at least one memory. The at least one memory comprises computer program codes; the at least one memory and the computer program codes are configured to be used in collaboration with the at least one processor, the first communication node450at least: receives first information, the first information is used to determine a first payload size, the first payload size is a positive integer; and monitors a first signaling in a target search space, a payload size of a payload of the first signaling is equal to a target payload size; herein, the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes.

In one embodiment, the first communication node450comprises a memory that stores a computer readable instruction program. The computer readable instruction program generates an action when executed by at least one processor. The action includes: receiving first information, the first information being used to determine a first payload size, the first payload size being a positive integer; and monitoring a first signaling in a target search space, a payload size of a payload of the first signaling being equal to a target payload size; herein, the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes.

In one embodiment, the second communication node410comprises at least one processor and at least one memory. The at least one memory comprises computer program codes; the at least one memory and the computer program codes are configured to be used in collaboration with the at least one processor. The second communication node410at least: transmits first information, the first information is used to determine a first payload size, the first payload size is a positive integer; and transmits a first signaling in a target search space, a payload size of a payload of the first signaling is equal to a target payload size; herein, the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes.

In one embodiment, the second communication node410comprises a memory that stores a computer readable instruction program. The computer readable instruction program generates an action when executed by at least one processor. The action includes: transmitting first information, the first information being used to determine a first payload size, the first payload size being a positive integer; and transmitting a first signaling in a target search space, a payload size of a payload of the first signaling being equal to a target payload size; herein, the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes.

In one embodiment, the first communication node450is a UE.

In one embodiment, the first communication node450is a UE that supports V2X.

In one embodiment, the first communication node450is a UE that supports a DCI format introduced after R15.

In one embodiment, the first communication node450is a vehicle equipment.

In one embodiment, the second communication node410is a base station (gNB/eNB).

In one embodiment, the second communication node410is a base station that supports V2X.

In one embodiment, the second communication node device410is a base station that supports a DCI format introduced after 15.

In one embodiment, the second communication node410is a Road Side Unit (RSU).

In one embodiment, the receiver456(including the antenna460), the receiving processor452and the controller/processor490are used to receive the first information in the present disclosure.

In one embodiment, the receiver456(including the antenna460), the receiving processor452and the controller/processor490are used to monitor the first signaling in the target search space in the present disclosure.

In one embodiment, the receiver456(including the antenna460) and the receiving processor452are used to monitor the first signaling in the target search space in the present disclosure.

In one embodiment, the receiver456(including the antenna460), the receiving processor452and the controller/processor490are used to receive the second information in the present disclosure.

In one embodiment, the receiver456(including the antenna460), the receiving processor452and the controller/processor490are used to receive the first signal in the present disclosure.

In one embodiment, the transmitter456(including the antenna460), the transmitting processor455and the controller/processor490are to transmit the first signal in the present disclosure.

In one embodiment, the transmitter416(including the antenna420), the transmitting processor415and the controller/processor440are used to transmit the first information in the present disclosure.

In one embodiment, the transmitter416(including the antenna420), the transmitting processor415and the controller/processor440are used to transmit the first signaling in the present disclosure.

In one embodiment, the transmitter416(including the antenna420) and the transmitting processor415are used to transmit the first signaling in the present disclosure.

In one embodiment, the transmitter416(including the antenna420), the transmitting processor415and the controller/processor440are used to transmit the second information in the present disclosure.

In one embodiment, the transmitter416(including the antenna420), the transmitting processor415and the controller/processor440are used to transmit the first signal in the present disclosure.

In one embodiment, the receiver416(including the antenna420), the receiving processor412and the controller/processor440are used to receive the first signal in the present disclosure.

Embodiment 5

Embodiment 5 illustrates a flowchart of signal transmission according to one embodiment in the present disclosure, as shown inFIG.5. InFIG.5, a second communication node N1is a maintenance base station of a serving cell of a first communication node U2, particularly, the order in the embodiment does not limit the order of signal transmission and implementation in the present disclosure.

The second communication node N1transmits first information in step S11, transmits second information in step S12, transmits a first signaling in a target search space in step S13, and transmits a first signal in step S14.

The first communication node U2receives first information in step S21, receives second information in step S22, monitors a first signaling in a target search space in step S23, and receives a first signal in step S24.

In embodiment 5, the first information is used to determine a first payload size, and the first payload size is a positive integer; a payload size of a payload of the first signaling is equal to a target payload size; the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes; the target search space is a CSS, or the target search space is a USS; the second information is used to determine whether the target search space is a CSS or a USS; the first signaling is used to determine time-frequency resources occupied by the first signal.

In one embodiment, the second information is transmitted through an air interface.

In one embodiment, the second information is transmitted through a radio interface.

In one embodiment, the second information is transmitted through a PC5 interface.

In one embodiment, the second information is transmitted through a Uu interface.

In one embodiment, the second information is transmitted through sidelink.

In one embodiment, the second information is carried by a baseband signal.

In one embodiment, the second information is carried by an RF signal.

In one embodiment, the second information is transferred inside the first communication node.

In one embodiment, the second information comprises higher-layer information, and the second information is transferred from a higher layer of the first communication node to a physical layer of the first communication node.

In one embodiment, the second information is pre-configured.

In one embodiment, the second information comprises all or part of a pre-configured RRC IE.

In one embodiment, the second information comprises physical-layer information.

In one embodiment, the second information comprises dynamic information.

In one embodiment, the second information is semi-persistent information.

In one embodiment, the second information comprises all or partial information in an SIB.

In one embodiment, the second information comprises all or partial information in an MIB.

In one embodiment, the second information comprises all or part of an RRC signaling.

In one embodiment, the second information is cell specific/cell common.

In one embodiment, the second information is UE specific/dedicated.

In one embodiment, the second information is zone-specific.

In one embodiment, the second information is broadcast.

In one embodiment, the second information is unicast.

In one embodiment, the second information comprises all or partial fields of DCI.

In one embodiment, the second information is transmitted through a DL-SCH.

In one embodiment, the second information is transmitted through a PDSCH.

In one embodiment, the second information is transmitted through an SL-SCH.

In one embodiment, the second information is transmitted through a PSSCH.

In one embodiment, the second information is transmitted through a PDCCH.

In one embodiment, the target search space being a CSS refers to: the target search space is a PDCCH CSS.

In one embodiment, the target search space being a CSS refers to: the target search space is a PDCCH CSS set.

In one embodiment, the target search space being a CSS refers to: the target search space is a PSCCH CSS set.

In one embodiment, the target search space being a USS refers to: the target search space is a PDCCH USS.

In one embodiment, the target search space being a USS refers to: the target search space is a PDCCH USS set.

In one embodiment, the target search space being a USS refers to: the target search space is a PSCCH USS.

In one embodiment, the phrase of “the second information being used to determine whether the target search space is a CSS or a USS” includes the following meaning: the second information is used by the first communication node in the present disclosure to determine whether the target search space is a CSS or a USS.

In one embodiment, the phrase of “the second information being used to determine whether the target search space is a CSS or a USS” includes the following meaning: the second information directly indicates whether the target search space is a CSS or a USS.

In one embodiment, the phrase of “the second information being used to determine whether the target search space is a CSS or a USS” includes the following meaning: the second information indirectly indicates whether the target search space is a CSS or a USS.

In one embodiment, the phrase of “the second information being used to determine whether the target search space is a CSS or a USS” includes the following meaning: the second information explicitly indicates whether the target search space is a CSS or a USS.

In one embodiment, the phrase of “the second information being used to determine whether the target search space is a CSS or a USS” includes the following meaning: the second information implicitly indicates whether the target search space is a CSS or a USS.

In one embodiment, the phrase of “the second information being used to determine whether the target search space is a CSS or a USS” includes the following meaning: the second information indicates Q search space set(s), Q being a positive integer, and the target search space is one of the Q search space set(s); the second information indicates whether each of the Q search space set(s) is a CSS or a USS.

In one embodiment, the first signal is a baseband signal.

In one embodiment, the first signal is an RF signal.

In one embodiment, the first signal is transmitted through an air interface.

In one embodiment, the first signal is transmitted through a radio interface.

In one embodiment, the first signal is transmitted through a Uu interface.

In one embodiment, the first signal is transmitted through a DL-SCH.

In one embodiment, the first signal is transmitted through a PDSCH.

In one embodiment, all or part of a Transport Block (TB) is used to generate the first radio signal.

In one embodiment, all or part of a bit block is used to generate the first signal.

In one embodiment, all or part of a characteristic sequence is used to generate the first signal.

In one embodiment, the above phrase of “the first signaling being detected” includes the following meaning: a Cyclic Redundancy Check (CRC) check of the first signaling after channel decoding is passed.

In one embodiment, the above phrase of “the first signaling being detected” includes the following meaning: a CRC check scrambled by a CRC of the first signaling after channel decoding with a characteristic identity of a target receiver of the first signaling is passed.

In one embodiment, the above phrase of “the first signaling being detected” includes the following meaning: a check scrambled by a CRC of the first signaling after channel decoding with an RNTI of the first communication node in the present disclosure is passed.

In one embodiment, the above phrase of “the first signaling being detected” includes the following meaning: a CRC check scrambled by a CRC of the first signaling after channel decoding with an ID of the first communication node in the present disclosure is passed.

In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meanings: the first signaling is used by the first communication node in the present disclosure to determine time-frequency resources occupied by the first signal.

In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meanings: the first signaling is used to directly indicate time-frequency resources occupied by the first signal.

In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meanings: the first signaling is used to indirectly indicate time-frequency resources occupied by the first signal.

In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meanings: the first signaling is used to explicitly indicate time-frequency resources occupied by the first signal.

In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meanings: the first signaling is used to implicitly indicate time-frequency resources occupied by the first signal.

In one embodiment, the above phrase of “the first signaling being used to determine time-frequency resources occupied by the first signal” includes the following meaning: the first signaling is used to indicate a target time-frequency resource pool, and time-frequency resources occupied by the first signal belong to the target time-frequency resource pool.

In one embodiment, the first signaling is also used to determine a Modulation Coding Scheme (MCS) adopted by the first signal.

In one embodiment, the first signaling is also used to determine a Redundancy Version (RV) adopted by the first signal.

In one embodiment, the first signaling is also used to determine a HARQ process to which the first signal belongs.

In one embodiment, the first signaling is also used to determine a characteristic ID of a target receiver of the first signal.

In one embodiment, the first signaling is also used to determine whether the first signal is broadcast, groupcast or unicast.

In one embodiment, the first signaling is also used to determine a Quality of Service (QoS) indicator of the first signal.

In one embodiment, when the operating action in the present disclosure is transmitting, the executing action in the present disclosure is receiving; and when the operating action in the present disclosure is receiving, and the executing action in the present disclosure is transmitting.

Embodiment 6

Embodiment 6 illustrates a flowchart of radio signal transmission according to another embodiment of the present disclosure, as shown inFIG.6. InFIG.6, a second communication node N3is a maintenance base station of a serving cell of a first communication node U4, particularly, the order in the embodiment does not limit the order of signal transmission and implementation in the present disclosure.

The second communication node N3transmits first information in step S31, transmits second information in step S32, and transmits a first signaling in a target search space in step S33.

The first communication node U4receives first information in step S41, receives second information in step S42, monitors a first signaling in a target search space in step S43, and transmits a first signal in step S44.

In embodiment 6, the first information is used to determine a first payload size, and the first payload size is a positive integer; a payload size of a payload of the first signaling is equal to a target payload size; the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes; the target search space is a CSS, or the target search space is a USS; the second information is used to determine whether the target search space is a CSS or a USS; the first signaling is used to determine time-frequency resources occupied by the first signal.

In one embodiment, the first signal is transmitted through a PC5 interface.

In one embodiment, the first signal is transmitted through sidelink.

In one embodiment, the first signal is transmitted through an SL-SCH.

In one embodiment, the first signal is transmitted through a PSSCH.

In one embodiment, the first signal is transmitted through a PSCCH.

In one embodiment, the first signal is transmitted through a Physical Sidelink Feedback Channel (PSFCH).

In one embodiment, the first signaling is also used to determine a characteristic ID of a target receiver of the first signal.

In one embodiment, the first signaling is also used to determine whether the first signal is broadcast, groupcast or unicast.

In one embodiment, the first signaling is also used to determine a Quality of Service (QoS) indicator of the first signal.

Embodiment 7

Embodiment 7 illustrates a flowchart of radio signal transmission according to another embodiment in the present disclosure, as shown inFIG.7. InFIG.7, a second communication node N5is a maintenance base station of a serving cell of a first communication node U6, particularly, the order in the embodiment does not limit the order of signal transmission and implementation in the present disclosure.

The second communication node N5transmits first information in step S51, transmits second information in step S52, transmits a first signaling in a target search space in step S53, and receives a first signal in step S54.

The first communication node U6receives first information in step S61, receives second information in step S62, monitors a first signaling in a target search space in step S63, and transmits a first signal in step S64.

In embodiment 7, the first information is used to determine a first payload size, and the first payload size is a positive integer; a payload size of a payload of the first signaling is equal to a target payload size; the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes; the target search space is a CSS, or the target search space is a USS; the second information is used to determine whether the target search space is a CSS or a USS; the first signaling is used to determine time-frequency resources occupied by the first signal.

In one embodiment, the first signal is transmitted through an Uplink Shared Channel (UL-SCH).

In one embodiment, the first signal is transmitted through a Physical Uplink Shared Channel (PUSCH).

Embodiment 8

Embodiment 8 illustrates a schematic diagram of a relation between a target payload size and a first control information format according to one embodiment of the present disclosure, as shown inFIG.8. InFIG.8, in case A, a first payload size is greater than a payload size of control information adopting a first control information format; in case B, a first payload size is greater than a payload size of control information adopting a first control information format.

In embodiment 8, the target search space in the present disclosure is a CSS, or the target search space is a USS; the second information in the present disclosure is used to determine whether the target search space is a CSS or a USS; when the target search space is a CSS, X in the present disclosure is equal to 1 and the target payload size in the present disclosure is equal to a payload size of control information adopting a first control information format, and control information adopting the first control information format can be used to schedule a PDSCH in a CSS.

In one embodiment, the first control information format is DCI format 1-0.

In one embodiment, the first control information format is DCI Format 1-0 in a CSS.

In one embodiment, the first control information format is DCI format 0-0.

In one embodiment, the first control information format is DCI Format 0-0 in a CSS.

In one embodiment, the first control information format is DCI Format 0-0 after through adding padding bits.

In one embodiment, the first control information format is DCI format 0-0 after bit truncation.

In one embodiment, a payload size of control information adopting the first control information format is equal to a payload size of control information adopting DCI Format 1-0 obtained according to Control Resource Set 0 (CORESET0) or an initial downlink bandwidth part.

In one embodiment, the above phrase of “control information adopting the first control information format can be used to schedule a PDSCH in a CSS” includes the following meaning: control information adopting the first control information format comprises scheduling information of a PDSCH, and the control information adopting the first control information format is successfully decoded in a common search space.

In one embodiment, the above phrase of “control information adopting the first control information format can be used to schedule a PDSCH in a CSS” includes the following meaning: control information adopting the first control information format can be used to schedule a PDSCH carrying paging information.

In one embodiment, the above phrase of “control information adopting the first control information format can be used to schedule a PDSCH in a CSS” includes the following meaning: control information adopting the first control information format can be used to schedule a PDSCH carrying Random Access Response (RAR) information.

In one embodiment, the above phrase of “control information adopting the first control information format can be used to schedule a PDSCH in a CSS” includes the following meaning: control information adopting the first control information format can be used to schedule a PDSCH carrying an SIB.

In one embodiment, the PDSCH is unicast.

In one embodiment, the PDSCH is broadcast.

In one embodiment, the PDSCH is groupcast.

In one embodiment, the PDSCH is UE-Specific.

In one embodiment, the PDSCH is cell-specific.

In one embodiment, the PDSCH is UE Group-Specific.

Embodiment 9

Embodiment 9 illustrates a schematic diagram of relations among Y control information formats and X payload sizes according to one embodiment of the present disclosure, as shown inFIG.9. InFIG.9, each rectangle in the upper row represents one of the Y control information formats, and each rectangle in the lower row represents one of X payload size(s).

In embodiment 9, the target search space in the present disclosure is a CSS, or the target search space is a USS; the second information in the present disclosure is used to determine whether the target search space is a CSS or a USS; when the target search space is a USS, the second information is also used to determine Y control information formats, Y being a positive integer greater than 1; the Y control information formats are used to determine the X payload size(s) in the present disclosure.

In one embodiment, Y is equal to 2.

In one embodiment, Y is equal to 4.

In one embodiment, Y is equal to a positive integer other than 2 or 4.

In one embodiment, any two of the Y control information formats are different.

In one embodiment, Y is equal to 2, and the Y control information formats are DCI format 0-0 and DCI format 1-0 respectively.

In one embodiment, Y is equal to 2, and the Y control information formats are DCI format 0-1 and DCI format 1-1 respectively.

In one embodiment, Y is equal to 2, and the Y control information formats are DCI format 0-0 and DCI format 1-0 respectively, or the Y control information formats are DCI Format 0-1 and DCI Format 1-1 respectively.

In one embodiment, Y is equal to 4, and the Y control information formats are DCI Format 0-0, DCI Format 1-0, DCI Format 0-1 and DCI Format 1-1 respectively.

In one embodiment, Y is not less than X.

In one embodiment, the above phrase of “the second information also being used to determine Y control information formats” includes the following meaning: the second information is used by the first communication node in the present disclosure to determine the Y control information formats.

In one embodiment, the above phrase of “the second information also being used to determine Y control information formats” includes the following meaning: the second information directly indicates the Y control information formats.

In one embodiment, the above phrase of “the second information also being used to determine Y control information formats” includes the following meaning: the second information indirectly indicates the Y control information formats.

In one embodiment, the above phrase of “the second information also being used to determine Y control information formats” includes the following meaning: the second information explicitly indicates the Y control information formats.

In one embodiment, the above phrase of “the second information also being used to determine Y control information formats” includes the following meaning: the second information implicitly indicates the Y control information formats.

In one embodiment, the above phrase of “the second information also being used to determine Y control information formats” includes the following meaning: the second information indicates P USS set(s), P being a positive integer, the second information indicates at least one control information format for each of the P USS set(s), and each control information format indicated for each of the P USS(s) is one of the Y control information formats; the target search space is one of the P USS set(s).

In one embodiment, the above phrase of “the second information also being used to determine Y control information formats” includes the following meaning: the second information indicates P USS set(s), P being a positive integer, the second information indicates at least one control information format for each of the P USS set(s), and a control information format indicated for the P USS(s) consists of the Y control information formats; the target search space is one of the P USS set(s).

In one embodiment, the second information comprises higher layer information “SearchSpace” IE.

In one embodiment, the second information comprises higher layer information “searchSpacesToAddModList” IE.

In one embodiment, the above phrase of “the Y control information formats being used to determine the X payload size(s)” includes the following meaning: the Y control information formats are used by the first communication node in the present disclosure to determine the X payload size(s).

In one embodiment, the above phrase of “the Y control information formats being used to determine the X payload size(s)” includes the following meaning: the Y control information formats are used by the first communication node in the present disclosure to determine the X payload size(s) according to DCI size alignment in section 7.3.1.0 in 3GPP TS 38.212 (v15.6.0).

In one embodiment, the above phrase of “the Y control information formats being used to determine the X payload size(s)” includes the following meaning: the Y control information formats are used by the first communication node in the present disclosure to determine the X payload size(s) according to DCI size alignment.

In one embodiment, the above phrase of “the Y control information formats being used to determine the X payload size(s)” includes the following meaning: the Y control information formats determine the X payload size(s) according to the principle of payload sizes of DCI Format 0-0 and DCI Format 1-0 being equal, payload sizes of DCI Format 0-0 and DCI Format 0-1 being not equal, and payload sizes of DCI Format 1-0 and DCI Format-1 being not equal.

In one embodiment, the above phrase of “the Y control information formats being used to determine the X payload size(s)” includes the following meaning: the Y control information formats determine the X payload size(s) according to the principle of payload size alignment of different control information formats in USS.

In one embodiment, the above phrase of “the Y control information formats being used to determine the X payload size(s)” includes the following meaning: the Y control information formats determine the X payload size(s) according to mapping criteria.

Embodiment 10

Embodiment 10 illustrates a schematic diagram of a relation of a first payload size and a target payload size according to one embodiment of the present disclosure, as shown inFIG.10. InFIG.10, the horizontal axis represents a payload size, the rectangle marked by a first payload size represents a first bit sequence, and the rectangle marked by a target payload size represents a payload of a first signaling; in the case A, the target payload size is greater than a first payload size, and the slash-filled rectangle represents padding bits; in the case B, the target payload size is less than a first payload size, and the cross-line filled rectangle represents truncation bits.

In embodiment 10, a first bit sequence is used to generate the first signaling in the present disclosure, and the first payload size in the present disclosure is equal to a number of bits comprised in the first bit sequence; when the target payload size in the present disclosure is greater than the first payload size, the first bit sequence generates a payload of the first signaling by adding padding bits, and a sum of the first payload size and a number of padding bits comprised in a payload of the first signaling is equal to the target payload size; when the target payload size is less than the first payload size, the first bit sequence generates a payload of the first signaling through bit truncation, and a number of truncated bits of the first bit sequence is equal to a difference value of the first payload size and the target payload size.

In one embodiment, the first bit sequence comprises at least one bit.

In one embodiment, the first bit sequence is composed of information bits carried by the first signaling.

In one embodiment, the first bit sequence is obtained by information bits carried by the first signaling through adding padding bits.

In one embodiment, when a number of information bits carried by the first signaling is less than 12, the first bit sequence is obtained by information bits carried by the first signaling through adding padding bits; and when a number of information bits carried by the first signaling is not less than 12, the first bit sequence is composed of information bits carried by the first bit sequence.

In one embodiment, the first bit sequence is obtained by arranging bits in a field in a DCI format adopted by the first signaling.

In one embodiment, the above phrase of “a first bit sequence being used to generate the first signaling” includes the following meaning: the first bit sequence sequentially goes through padding bit insertion, CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources and OFDM Baseband Signal Generation to obtain the first signaling.

In one embodiment, the above phrase of “a first bit sequence being used to generate the first signaling” includes the following meaning: the first bit sequence sequentially goes through padding bit insertion, CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources, OFDM Baseband Signal Generation and Modulation and Upconversion to obtain the first signaling.

In one embodiment, the above phrase of “a first bit sequence being used to generate the first signaling” includes the following meaning: the first bit sequence sequentially goes through CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources and OFDM Baseband Signal Generation to obtain the first signaling.

In one embodiment, the above phrase of “a first bit sequence being used to generate the first signaling” includes the following meaning: the first bit sequence sequentially goes through CRC Attachment, Channel Coding, Rate Matching, Scrambling, Modulation, Mapping to Physical Resources, OFDM Baseband Signal Generation and Modulation and Upconversion to obtain the first signaling.

In one embodiment, the padding bit is ‘0’ bit.

In one embodiment, the adding padding bit is zero-padding.

In one embodiment, the above phrase of “the first bit sequence generating a payload of the first signaling through adding padding bits” includes the following meaning: the first bit sequence directly generates a payload of the first signaling by adding padding bits.

In one embodiment, the above phrase of “the first bit sequence generating a payload of the first signaling through adding padding bits” includes the following meaning: the first bit sequence indirectly generates a payload of the first signaling by adding padding bits.

In one embodiment, each padding bit comprised in a payload of the first signaling is a ‘0’ bit.

In one embodiment, a number of padding bit(s) comprised in a payload of the first signaling is W1, W1 being a positive integer, padding bit(s) comprised in a payload of the first signaling occupy W1 bit(s) of Most Significant Bits (MSB) in a payload of the first signaling.

In one embodiment, a number of padding bit(s) comprised in a payload of the first signaling is W1, W1 being a positive integer, padding bit(s) comprised in a payload of the first signaling occupy W1 bit(s) of Least Significant Bits (LSB) in a payload of the first signaling.

In one embodiment, when a number of padding bits comprised in a payload of the first signaling is greater than 1, padding bits comprised in a payload of the first signaling are discretely distributed in bits comprised in a payload of the first signaling.

In one embodiment, when a number of padding bits comprised in a payload of the first signaling is greater than 1, padding bits comprised in a payload of the first signaling are centrally distributed in bits comprised in a payload of the first signaling.

In one embodiment, the above phrase of “the first bit sequence generating a payload of the first signaling by adding padding bits, and a sum of the first payload size and a number of padding bits comprised in a payload of the first signaling being equal to the target payload size” includes the following meaning: adding padding bits to the first bit sequence until a total number of bits is equal to the target payload size.

In one embodiment, when the target payload size is equal to the first payload size, the first bit sequence is a payload of the first signaling.

In one embodiment, the above phrase of “the first bit sequence generates a payload of the first signaling through bit truncation” includes the following meaning: the first bit sequence directly generates a payload of the first signaling through bit truncation.

In one embodiment, the above phrase of “the first bit sequence generates a payload of the first signaling through bit truncation” includes the following meaning: the first bit sequence indirectly generates a payload of the first signaling through bit truncation.

In one embodiment, truncated bits of the first bit sequence belong to a same field in a same DCI format.

In one embodiment, when the number of truncated bits of the first bit sequence is greater than 1, there exist two truncated bits of the first bit sequence belonging to two different fields in a same DCI format.

In one embodiment, a number of truncated bit(s) of the first bit sequence is equal to W2, W2 is a positive integer, and truncated bit(s) of the first bit sequence is(are) W2 bit(s) of MSB of the first bit sequence.

In one embodiment, a number of truncated bit(s) of the first bit sequence is equal to W2, W2 is a positive integer, and truncated bit(s) of the first bit sequence is(are) W2 bit(s) of LSB of the first bit sequence.

In one embodiment, a number of truncated bit(s) of the first bit sequence is equal to W2, W2 is a positive integer, and truncated bit(s) of the first bit sequence is(are) W2 bit(s) of MSB of a field in a DCI format adopted by the first bit sequence.

In one embodiment, a number of truncated bit(s) of the first bit sequence is equal to W2, W2 is a positive integer, and truncated bit(s) of the first bit sequence is(are) W2 bit(s) of LSB of a field in a DCI format adopted by the first bit sequence.

In one embodiment, when a number of truncated bits of the first bit sequence is greater than 1, the truncated bits of the first bit sequence are discretely distributed in bits comprised in the first bit sequence.

In one embodiment, when a number of truncated bits of the first bit sequence is greater than 1, the truncated bits of the first bit sequence are centrally distributed in bits comprised in the first bit sequence.

In one embodiment, the above phrase of “when the target payload size is less than the first payload size, the first bit sequence generating a payload of the first signaling through bit truncation, and a number of truncated bits of the first bit sequence being equal to a difference value of the first payload size and the target payload size” includes the following meaning: when the target payload size is less than the first payload size, a number of bits obtained by the first bit sequence through bit truncation is equal to the target payload size.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of relation(s) of M1 bit(s) and a first field according to one embodiment of the present disclosure, as shown inFIG.11. InFIG.11, each thick-line framed rectangle represents a field in a first bit sequence, and in case A, the slash-filled rectangle represents M1 bit(s); in the case B, the cross-line filled rectangle represents M1 bit(s); in cases A and B, the direction of the arrow represents a direction from high-order bit to low-order bit.

In embodiment 11, when the target payload size in the present disclosure is less than the first payload size in the present disclosure, the first bit sequence in the present disclosure generates a payload of the first signaling in the present disclosure after being truncated M bit(s), M1 bit(s) comprised in the M bit(s) belongs(belong) to a first field in the first bit sequence, the first field is used to indicate frequency-domain resources, M being a positive integer, M1 being a positive integer not greater than M.

In one embodiment, the M1 bit(s) is(are) arranged in the order in the first bit sequence, and the M1 bit(s) is(are) M1 MSB(s) in the first field.

In one embodiment, the M1 bit(s) is(are) arranged in the order in the first bit sequence, and the M1 bit(s) is(are) M1 LSB(s) in the first field.

In one embodiment, the M1 bit(s) is(are) arranged in the order in the first bit sequence, when M1 is greater than 1 and M is greater than M1, the M1 bits are centrally distributed in the M bits.

In one embodiment, the M1 bit(s) is(are) arranged in the order in the first bit sequence, when M1 is greater than 1 and M is greater than M1, the M1 bits are discretely distributed in the M bits.

In one embodiment, M1 is equal to M.

In one embodiment, M1 is less than M.

In one embodiment, M1 is equal to M, and the M1 bit(s) is(are) the M bit(s).

In one embodiment, the first field is a field in a DCI format adopted by an information bit generating the first bit sequence.

In one embodiment, the first field is a field in a DCI format adopted by the first bit sequence.

In one embodiment, the M1 bit(s) is(are) M1 MSB(s) of the first field before bit truncation.

In one embodiment, the M1 bit(s) is(are) M1 LSB(s) of the first field before bit truncation.

In one embodiment, the first field is a “Frequency Domain Resource Assignment” field.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to indicate frequency-domain resources occupied by a PDSCH.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to indicate frequency-domain resources occupied by a PUSCH.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to indicate frequency-domain resources occupied by a PSSCH.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to indicate frequency-domain resources occupied by a PSCCH.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to indicate a frequency-domain resource pool used for sidelink transmission.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to indicate a frequency-domain subchannel occupied by a PSSCH.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to indicate a frequency-domain subchannel occupied by a PSCCH.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used by the second communication node in the present disclosure to indicate frequency-domain resources.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used by the first communication node in the present disclosure to indicate frequency-domain resources.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to directly indicate frequency-domain resources.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to indirectly indicate frequency-domain resources.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to explicitly indicate frequency-domain resources.

In one embodiment, the above phrase of “the first field being used to indicate frequency-domain resources” includes the following meaning: the first field is used to implicitly indicate frequency-domain resources.

Embodiment 12

Embodiment 12 illustrates a schematic diagram of a process of calculating a target payload size according to one embodiment of the present disclosure, as shown inFIG.12. InFIG.12, each rectangle represents an operating action, and each diamond represents a judging action. InFIG.12, start from1201, judge whether a target search space is a CSS in1202, determine X payload size(s) in1203, judge whether X is equal to 1 in1204, a target payload size is equal to only one of X payload size(s) in1205, judge whether there exists one of X payload size(s) being not less than a first payload size in1206, a target payload size is equal to a maximum one of X payload size(s) in1207, a target payload size is equal to a payload size not less than a first payload size with a minimum difference value between a first payload size among X payload size(s) in1208, determine a payload size of DCI Format 1-0 in1209, and a target payload size is equal to a payload size of DCI Format 1-0 in1210.

In one embodiment, the first control information format is DCI format 1-0.

In one embodiment, the first control information format is DCI Format 1-0 in a CSS.

Embodiment 13

Embodiment 13 illustrates a structure block diagram of a processing device in a first communication node, as shown inFIG.13. InFIG.13, a processing device1300of the first communication node comprises a first receiver1301, a second receiver1302and a first processor1303. The first receiver1301comprises the transmitter/receiver456(including the antenna460), the receiving processor452and the controller/processor490inFIG.4of the present disclosure; the second receiver1302comprises the transmitter/receiver456(including the antenna460), the receiving processor452and the controller/processor490inFIG.4of the present disclosure; and the first processor1303comprises the transmitter/receiver456(including the antenna460), the receiver processor452, the transmitting processor455and the controller/processor490inFIG.4of the present disclosure.

In embodiment 13, the first receiver1301receives first information, the first information is used to determine a first payload size, the first payload size is a positive integer; and the second receiver1302monitors a first signaling in a target search space, a payload size of a payload of the first signaling is equal to a target payload size; herein, the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes.

In one embodiment, the first receiver1301receives second information; herein, the target search space is a CSS, or the target search space is a USS; the second information is used to determine whether the target search space is a CSS or a USS.

In one embodiment, the first receiver1301receives second information; herein, the target search space is a CSS, or the target search space is a USS; the second information is used to determine whether the target search space is a CSS or a USS; when the target search space is a CSS, X is equal to 1 and the target payload size is equal to a payload size of control information adopting a first control information format, and the control information adopting the first control information format can be used in a CSS to schedule a PDSCH.

In one embodiment, the first receiver1301receives second information; herein, the target search space is a CSS, or the target search space is a USS; the second information is used to determine whether the target search space is a CSS or a USS; when the target search space is a USS, the second information is also used to determine Y control information formats, Y being a positive integer greater than 1; the Y control information formats are used to determine the X payload size(s).

In one embodiment, a first characteristic sequence is used to generate the first signaling, and the first payload size is equal to a number of bits comprised in the first bit sequence; when the target payload size is greater than the first payload size, the first bit sequence generates a payload of the first signaling by adding padding bits, and a sum of the first payload size and a number of padding bits comprised in a payload of the first signaling is equal to the target payload size; when the target payload size is less than the first payload size, the first bit sequence generates a payload of the first signaling through bit truncation, and a number of truncated bits of the first bit sequence is equal to a difference value of the first payload size and the target payload size.

In one embodiment, a first characteristic sequence is used to generate the first signaling, and the first payload size is equal to a number of bits comprised in the first bit sequence; when the target payload size is greater than the first payload size, the first bit sequence generates a payload of the first signaling by adding padding bits, and a sum of the first payload size and a number of padding bits comprised in a payload of the first signaling is equal to the target payload size; when the target payload size is less than the first payload size, the first bit sequence generates a payload of the first signaling through bit truncation, and a number of truncated bits of the first bit sequence is equal to a difference value of the first payload size and the target payload size; when the target payload size is less than the first payload size, the first bit sequence generates a payload of the first signaling after being truncated M bit(s), M1 bit(s) comprised in the M bit(s) belongs(belong) to a first field in the first bit sequence, the first field is used to indicate frequency-domain resources, M being a positive integer, M1 being a positive integer not greater than M.

In one embodiment, the first processor1303operates a first signal; herein, the first signaling is detected, the first signaling is used to determine time-frequency resources occupied by the first signal, and the operating action is transmitting, or the operating action is receiving.

Embodiment 14

Embodiment 14 illustrates a structure block diagram of a processing device of a second communication node according to one embodiment, as shown inFIG.14. InFIG.14, a processing device1400of the second communication node comprises a first transmitter1401, a second transmitter1402and a second processor1403. The first transmitter1401comprises the transmitter/receiver416(including the antenna420), the transmitting processor415and the controller/processor440inFIG.4of the present disclosure; the second transmitter1402comprises the transmitter/receiver416(including the antenna420), the transmitting processor415and the controller/processor440inFIG.4of the present disclosure; the second processor1403comprises the transmitter/receiver416(including the antenna420), the transmitting processing415, the receiving processor412and the controller/processor440inFIG.4of the present disclosure.

In embodiment 14, the first transmitter1401transmits first information, the first information is used to determine a first payload size, the first payload size is a positive integer; and a second transmitter1402transmits a first signaling in a target search space, a payload size of a payload of the first signaling is equal to a target payload size; herein, the target search space is used to determine X payload size(s), the target payload size is equal to one of X payload size(s), X is a positive integer, and any of the X payload size(s) is a positive integer; when X is greater than 1 and there exists one of the X payload sizes being not less than the first payload size, the target payload size is equal to a payload size among the X payload sizes which is closest to and not less than the first payload size; when X is greater than 1 and any of the X payload sizes is less than the first payload size, the target payload size is equal to a largest payload size among the X payload sizes.

In one embodiment, the first transmitter1401transmits second information; herein, the target search space is a CSS, or the target search space is a USS; the second information is used to indicate whether the target search space is a CSS or a USS.

In one embodiment, the first transmitter1401transmits second information; herein, the target search space is a CSS, or the target search space is a USS; the second information is used to indicate whether the target search space is a CSS or a USS; when the target search space is a CSS, X is equal to 1 and the target payload size is equal to a payload size of control information adopting a first control information format, and the control information adopting the first control information format can be used in a CSS to schedule a PDSCH.

In one embodiment, the first transmitter1401transmits second information; herein, the target search space is a CSS, or the target search space is a USS; the second information is used to indicate whether the target search space is a CSS or a USS; when the target search space is a USS, the second information is also used to indicate Y control information formats, Y being a positive integer greater than 1; the Y control information formats are used to determine the X payload size(s).

In one embodiment, a first characteristic sequence is used to generate the first signaling, and the first payload size is equal to a number of bits comprised in the first bit sequence; when the target payload size is greater than the first payload size, the first bit sequence generates a payload of the first signaling by adding padding bits, and a sum of the first payload size and a number of padding bits comprised in a payload of the first signaling is equal to the target payload size; when the target payload size is less than the first payload size, the first bit sequence generates a payload of the first signaling through bit truncation, and a number of truncated bits of the first bit sequence is equal to a difference value of the first payload size and the target payload size.

In one embodiment, a first characteristic sequence is used to generate the first signaling, and the first payload size is equal to a number of bits comprised in the first bit sequence; when the target payload size is greater than the first payload size, the first bit sequence generates a payload of the first signaling by adding padding bits, and a sum of the first payload size and a number of padding bits comprised in a payload of the first signaling is equal to the target payload size; when the target payload size is less than the first payload size, the first bit sequence generates a payload of the first signaling through bit truncation, and a number of truncated bits of the first bit sequence is equal to a difference value of the first payload size and the target payload size; when the target payload size is less than the first payload size, the first bit sequence generate a payload of the first signaling after being truncated M bits, M1 bit(s) comprised in the M bit(s) belongs(belong) to a first field in the first bit sequence, the first field is used to indicate frequency-domain resources, M being a positive integer, M1 being a positive integer not greater than M.

In one embodiment, the second processor1403executes a first signal; herein, the first signaling is used to determine time-frequency resources occupied by the first signal, the executing action is receiving, or the executing action is transmitting.

The ordinary skill in the art may understand that all or part of steps in the above method may be implemented by instructing related hardware through a program. The program may be stored in a computer readable storage medium, for example Read-Only Memory (ROM), hard disk or compact disc, etc. Optionally, all or part of steps in the above embodiments also may be implemented by one or more integrated circuits. Correspondingly, each module unit in the above embodiment may be realized in the form of hardware, or in the form of software function modules. The first communication node or the second communication node in the present disclosure includes but is not limited to mobile phones, tablet computers, notebooks, network cards, low-consumption equipment, enhanced MTC (eMTC) terminals, NB-IOT terminals, vehicle-mounted communication equipment, aircrafts, diminutive airplanes, unmanned aerial vehicles, telecontrolled aircrafts and other wireless communication devices. The base station or network side equipment in the present disclosure includes but is not limited to macro-cellular base stations, micro-cellular base stations, home base stations, relay base station, eNB, gNB, Transmitter Receiver Point (TRP), relay satellites, satellite base stations, space base stations and other radio communication equipment.

The above are merely the preferred embodiments of the present disclosure and are not intended to limit the scope of protection of the present disclosure. Any modification, equivalent substitute and improvement made within the spirit and principle of the present disclosure are intended to be included within the scope of protection of the present disclosure.