CN117040700A

CN117040700A - Method and apparatus in a node for wireless communication

Info

Publication number: CN117040700A
Application number: CN202210461940.5A
Authority: CN
Inventors: 胡杨; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-11-10
Also published as: WO2023207705A1

Abstract

A method and apparatus in a node for wireless communication is disclosed. A first receiver receiving first signaling including a first domain used to indicate an association between a PT-RS port and a DM-RS port; a first transmitter for transmitting a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks; wherein the time domain density of the first sub-signal and the time domain density of the second sub-signal are related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal, respectively, or to an MCS index indicated by the same domain in the first signaling.

Description

Method and apparatus in a node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus for wireless signals in a wireless communication system supporting a cellular network.

Background

In the wireless communication using a higher frequency band, selecting a proper PT-RS time domain density can effectively improve the transmission performance of wireless signals. In Uplink (Uplink) transmission, how to relate the time domain density of PT-RS to an appropriate MCS according to an indication of DCI signaling is an important issue to be considered in improving Uplink transmission performance.

Disclosure of Invention

In view of the above, the present application discloses a solution. It should be noted that the above description takes higher frequency band and uplink as examples; the application is also applicable to other scenarios, such as frequency bands other than higher frequency bands, downlink (Downlink), sidelink (Sidelink), etc., and achieves similar technical effects. Furthermore, the use of unified solutions for different scenarios (including but not limited to uplink, downlink or sidelink in various different frequency bands) also helps to reduce hardware complexity and cost, or to improve performance. Embodiments in any one node of the application and features in embodiments may be applied to any other node without conflict. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.

As an embodiment, the term (terminalogy) in the present application is explained with reference to the definition of the 3GPP specification protocol TS36 series.

As an embodiment, the term in the present application is explained with reference to the definition of the 3GPP specification protocol TS38 series.

As an embodiment, the term in the present application is explained with reference to the definition of the 3GPP specification protocol TS37 series.

As one example, the term in the present application is explained with reference to the definition of the specification protocol of IEEE (Institute of Electrical and Electronics Engineers ).

The application discloses a method used in a first node of wireless communication, which is characterized by comprising the following steps:

receiving first signaling, wherein the first signaling comprises a first domain, and the first domain is used for indicating association between a PT-RS port and a DM-RS port;

transmitting a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks;

wherein the time domain density of the first sub-signal and the time domain density of the second sub-signal are related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal, respectively, or to an MCS index indicated by the same domain in the first signaling.

As one example, the benefits of the above method include: the scheduling flexibility of the base station side is improved, and the improvement of transmission performance is facilitated.

As one example, the benefits of the above method include: the cost of DCI signaling is saved.

As one example, the benefits of the above method include: the flexibility of PT-RS configuration is improved.

As one example, the benefits of the above method include: the resource overhead for PT-RS is reduced or the utilization efficiency of PT-RS is improved on the premise of ensuring the transmission performance.

As one example, the benefits of the above method include: and is beneficial to improving the frequency spectrum efficiency.

According to one aspect of the application, the above method is characterized in that,

the time domain density of the first sub-signal is associated to an MCS index indicated by a given domain in the first signaling; when the first domain in the first signaling indicates that a PT-RS port occupied by the second sub-signal is associated to a first DM-RS port, the time domain density of the second sub-signal is associated to the MCS index indicated by the given domain in the first signaling; when the first domain in the first signaling indicates that the PT-RS port occupied by the second sub-signal is associated to a second DM-RS port, the time domain density of the second sub-signal is associated to an MCS index indicated by a domain other than the given domain in the first signaling; the first DM-RS port and the second DM-RS port share the PT-RS port occupied by the second sub-signal.

As one embodiment, the features of the above method include: and determining the configuration of the PT-RS time domain density according to the association relation between the PT-RS port and the DM-RS port.

the first DM-RS port and the second DM-RS port correspond to a first bit block and a second bit block respectively, and the second signal carries the first bit block and the second bit block.

the second signal carries a first bit block and a second bit block; when a first set of conditions is satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are respectively associated to MCS indexes indicated by two different domains in the first signaling; when a first set of conditions is not satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are associated to an MCS index indicated by a same domain in the first signaling; the first set of conditions relates to at least one of a transport layer occupied by the first bit block or a transport layer occupied by the second bit block.

when the number of transport layers occupied by the first bit block belongs to a first number set, the first condition set is satisfied; the first set of quantities includes at least one quantity.

As one embodiment, the features of the above method include: and determining the configuration of the PT-RS time domain density according to the number of transmission layers occupied by the transmission blocks carried by the second signal.

the first MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the first MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the first sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling in an MCS index range to which the plurality of MCS index ranges in the first MCS index range set belong; the second MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the second MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the second sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling among the plurality of MCS index ranges in the second MCS index range set.

the first signal comprises a first PT-RS, the first sub-signal comprises a portion of the first PT-RS occupying a first PT-RS port, and the second sub-signal comprises a portion of the first PT-RS occupying a second PT-RS port.

The application discloses a method used in a second node of wireless communication, which is characterized by comprising the following steps:

transmitting first signaling, wherein the first signaling comprises a first domain, and the first domain is used for indicating association between a PT-RS port and a DM-RS port;

receiving a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks;

The application discloses a first node used for wireless communication, which is characterized by comprising the following components:

a first receiver receiving first signaling including a first domain used to indicate an association between a PT-RS port and a DM-RS port;

a first transmitter for transmitting a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks;

The present application discloses a second node used for wireless communication, which is characterized by comprising:

a second transmitter transmitting first signaling including a first domain used to indicate association between PT-RS ports and DM-RS ports;

a second receiver for receiving a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks;

Drawings

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

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

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

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

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

FIG. 5 shows a signal transmission flow diagram according to one embodiment of the application;

fig. 6 shows an illustrative diagram of determining an MCS index to which a time domain density of a second sub-signal is associated in accordance with an embodiment of the present application;

FIG. 7 is a schematic diagram showing a relationship among a first DM-RS port, a second DM-RS port, a first bit block, a second bit block, and a second signal according to one embodiment of the application;

FIG. 8 shows an illustrative diagram when a first set of conditions is satisfied or not satisfied in accordance with an embodiment of the present application;

FIG. 9 shows an illustrative diagram of a first set of conditions being met in accordance with one embodiment of the application;

fig. 10 shows a schematic diagram of a relationship between a first MCS index range set, a time domain density of a first sub-signal, a second MCS index range set and a time domain density of a second sub-signal according to an embodiment of the present application;

FIG. 11 shows an illustrative schematic of a first signal, a first sub-signal and a second sub-signal according to one embodiment of the application;

fig. 12 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the application;

fig. 13 shows a block diagram of the processing means in the second node device according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a process flow diagram of a first node according to one embodiment of the application, as shown in fig. 1.

In embodiment 1, the first node in the present application receives first signaling in step 101; the first signal and the second signal are transmitted in step 102.

In embodiment 1, the first signaling includes a first field used to indicate an association between a PT-RS port and a DM-RS port; the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks; whether the time domain density of the first sub-signal and the time domain density of the second sub-signal are associated to an MCS index indicated by the same domain in the first signaling or to MCS indexes indicated by two different domains in the first signaling, respectively, relates to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling comprises physical layer signaling.

As an embodiment, the first signaling is downlink control signaling.

As an embodiment, the first signaling is a DCI (Downlink control information ) format (DCI format).

As an embodiment, the first signaling is a DCI signaling.

As an embodiment, the first signaling is signaling in a DCI format.

As an embodiment, the first node receives the first signaling in a physical layer control channel.

As an embodiment, the first node receives the first signaling in one PDCCH (Physical downlink control channel).

As an embodiment, the first signaling is DCI format 0_0.

As an embodiment, the first signaling is DCI format 0_1.

As an embodiment, the first signaling is DCI format 0_2.

As an embodiment, the first signaling uses one of DCI format 0_0, DCI format 0_1 or DCI format 0_2.

As an embodiment, the first signaling uses DCI formats other than DCI format 0_0, DCI format 0_1 or DCI format 0_2.

As an embodiment, the first signaling is an uplink scheduling signaling (UpLink Grant Signalling).

As an embodiment, the first signaling is dynamically configured.

As an embodiment, the first signaling comprises layer 1 (L1) signaling.

As an embodiment, the first signaling comprises layer 1 (L1) control signaling.

For one embodiment, the first signaling includes one or more fields (fields) in a physical layer signaling.

As an embodiment, the first signaling comprises higher layer (HigherLayer) signaling.

As an embodiment, the first signaling comprises one or more domains in a higher layer signaling.

As an embodiment, the first signaling comprises RRC (Radio Resource Control ) signaling.

As an embodiment, the first signaling comprises a MAC CE (Medium Access Control layer Control Element ).

As an embodiment, the first signaling includes one or more domains in an RRC signaling.

As an embodiment, the first signaling includes one or more domains in one MAC CE.

As an embodiment, the first signaling includes one or more fields in one IE (Information Element).

As an embodiment, the first signaling includes SCI (side link control information ).

As an embodiment, the first signaling comprises one or more fields in one SCI.

As an embodiment, the first field comprises at least one bit.

As an embodiment, the first field is made up of 1 bit.

As an embodiment, the first field is composed of 2 bits.

As an embodiment, the first field is composed of 3 bits.

As an embodiment, the first field is made up of 4 bits.

As an embodiment, the first domain is a PTRS-DMRS association domain.

As an embodiment, the name of the first domain includes at least one of PTRS or DMRS or association.

As an embodiment, the second signal comprises a wireless signal.

As an embodiment, the second signal comprises a baseband signal.

As an embodiment, the second signal comprises a frequency band signal.

As an embodiment, the second signal employs a codebook based transmission scheme.

As an embodiment, the second signal employs a Non-Codebook based transmission scheme.

As an embodiment, the second signal is a PUSCH (Physical uplink shared channel) signal.

As an embodiment, the second signal comprises a PUSCH.

As an embodiment, the second signal belongs to a PUSCH.

As an embodiment, the second signal is transmitted on one PUSCH.

As an embodiment, the second signal is a PSSCH (Physical sidelink shared channel) signal.

As an embodiment, the second signal comprises a PSSCH.

As an embodiment, the second signal belongs to one PSSCH.

As an embodiment, the second signal is transmitted on one PSSCH.

As an embodiment, the second signal carries at least one transport block.

As an embodiment, the second signal carries 2 blocks of bits.

As an embodiment, one of the bit blocks carried by the second signal comprises a plurality of bits.

As an embodiment, one of the bit blocks carried by the second signal comprises bits of UL-SCH (Uplink Shared Channel (s)).

As an embodiment, one of the blocks of bits carried by the second signal is a transport block (TransportBlock, TB).

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal includes an output after at least a portion of the scrambling, modulating, layer mapping, antenna port mapping (Antenna port mapping), mapping to virtual resource blocks (Mapping to virtual resource blocks), mapping from virtual resource blocks to physical resource blocks (Mapping from virtual to physical resource blocks), multicarrier symbol generation, and modulation up-conversion of the encoded bits of each of the plurality of bit blocks.

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal includes an output after each of the plurality of bit blocks has undergone CRC attachment (CRC attachment), code block segmentation (Code block segmentation), code block CRC attachment, channel coding (Channel coding), rate matching (Rate matching), code block concatenation (Code block concatenation), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer mapping), transform Precoding (Transform Precoding), precoding (Precoding), mapping to virtual resource blocks (Mapping to virtual resource blocks), mapping from virtual resource blocks to physical resource blocks (Mapping from virtual to physical resourceblocks), multicarrier symbol generation, modulation up-conversion.

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal includes an output after each of the plurality of bit blocks has undergone CRC attachment (CRC attachment), code block segmentation (Code block segmentation), code block CRC attachment, channel coding (Channel coding), rate matching (Rate matching), code block concatenation (Code block concatenation), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer mapping), antenna port mapping (Antenna port mapping), precoding (Precoding), mapping to virtual resource blocks (Mapping to virtual resource blocks), mapping from virtual resource blocks to physical resource blocks (Mapping from virtual to physical resource blocks), multicarrier symbol generation, modulation up-conversion.

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal includes an output after each of the plurality of bit blocks has undergone CRC attachment (CRC attachment), code block segmentation (Code block segmentation), code block CRC attachment, channel coding (Channel coding), rate matching (Rate matching), code block concatenation (Code block concatenation), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer mapping), precoding (Precoding), antenna port mapping (Antenna port mapping), mapping to virtual resource blocks (Mapping to virtual resource blocks), mapping from virtual resource blocks to physical resource blocks (Mapping from virtual to physical resource blocks), multicarrier symbol generation, modulation up-conversion.

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal includes a signal used to transmit modulation symbols generated by codewords generated by each of the plurality of bit blocks.

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal includes a PUSCH on which modulation symbols generated by codewords generated by each of the plurality of bit blocks are transmitted.

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal includes a PSSCH upon which modulation symbols generated by codewords generated by each of the plurality of bit blocks are transmitted.

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal belongs to a PUSCH on which modulation symbols generated by codewords generated by each of the plurality of bit blocks are transmitted.

As an embodiment, said expressing that said second signal carries a plurality of bit blocks comprises: the second signal belongs to a PSSCH on which modulation symbols generated by codewords generated by each of the plurality of bit blocks are transmitted.

As one embodiment, the first signal comprises a wireless signal.

As an embodiment, the first signal comprises a baseband signal.

As an embodiment, the first signal comprises a frequency band signal.

As an embodiment, the first signal comprises a reference signal (reference signal).

As an embodiment, the first sub-signal and the second sub-signal respectively comprise signals transmitted on 2 PT-RS ports.

As an embodiment, the first sub-signal and the second sub-signal respectively include PT-RSs (Phase-tracking reference signal, phase tracking reference signals) transmitted on 2 PT-RS ports.

As an embodiment, the first sub-signal and the second sub-signal respectively comprise different parts of one PTRS transmitted on 2 PT-RS ports.

As one embodiment, the time domain density (time density) of the first sub-signal includes a size of a space between symbols occupied by the first sub-signal in a time domain.

As an embodiment, the time domain density (time density) of the first sub-signal is one of {4,2,1 }.

As one embodiment, the time domain density (time density) of the second sub-signal includes a size of a space between symbols occupied by the second sub-signal in a time domain.

As an embodiment, the time domain density (time density) of the second sub-signal is one of {4,2,1 }.

As an embodiment, the allocation of a transport layer (transmission layer (s)) in the second signal comprises: the number of transport layers occupied by the bit block carried by the second signal.

As an embodiment, the allocation of a transport layer in the second signal comprises: and a DM-RS (Demodulation reference signal ) port mapped to a transmission layer occupied by the bit block carried by the second signal.

As an embodiment, the allocation of a transport layer in the second signal comprises: and the mapping relation between the transmission layer occupied by the bit block carried by the second signal and the DM-RS port.

As an embodiment, the first signaling is used to indicate the allocation of a transport layer in the second signal.

As an embodiment, the first signaling explicitly indicates the allocation of transport layers in the second signal.

As an embodiment, the first signaling implicitly indicates the allocation of transport layers in the second signal.

As an embodiment, the first signaling is used to determine a mapping relationship between a transport layer occupied by a bit block carried by the second signal and a DM-RS port.

As an embodiment, the first signaling is used to indicate a mapping relationship between a transport layer occupied by a bit block carried by the second signal and a DM-RS port.

As an embodiment, in the present application, the correlation of the time domain density of one sub-signal to one MCS index includes the following meanings: the plurality of MCS index ranges correspond to a plurality of time domain densities, and the time domain density of the one sub-signal is a time domain density corresponding to an MCS index range to which the one MCS index belongs among the plurality of MCS index ranges.

As a sub-embodiment of the above embodiment, the plurality of MCS index ranges are configurable.

As a sub-embodiment of the above embodiment, the plurality of MCS index ranges are configured by RRC signaling.

As a sub-embodiment of the above embodiment, the plurality of time domain densities includes {4,2,1}.

As a sub-embodiment of the above embodiment, the correspondence between the plurality of MCS index ranges and the plurality of time domain densities is obtained based on one table (table).

As an embodiment, in the present application, the correlation of the time domain density of one sub-signal to one MCS index includes the following meanings: the time domain density of the one sub-signal is a function of the one MCS index.

As an embodiment, in the present application, the correlation of the time domain density of one sub-signal to one MCS index includes the following meanings: the one MCS index indicates the time domain density of the one sub-signal.

As an embodiment, in the present application, the correlation of the time domain density of one sub-signal to one MCS index includes the following meanings: the one MCS index explicitly or implicitly indicates the time domain density of the one sub-signal.

As an embodiment, the first field in the first signaling is used to indicate a DM-RS port associated with a PT-RS port occupied by the first sub-signal.

As an embodiment, the first field in the first signaling is used to indicate a DM-RS port associated with a PT-RS port occupied by the second sub-signal.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2.

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

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

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

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

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

As an embodiment, the UE201 corresponds to the first node in the present application, and the gNB203 corresponds to the second node in the present application.

As an embodiment, the gNB203 is a macro cell (marcocelluar) base station.

As one example, the gNB203 is a Micro Cell (Micro Cell) base station.

As an embodiment, the gNB203 is a PicoCell (PicoCell) base station.

As an example, the gNB203 is a home base station (Femtocell).

As an embodiment, the gNB203 is a base station device supporting a large delay difference.

As an embodiment, the gNB203 is a flying platform device.

As one embodiment, the gNB203 is a satellite device.

As an embodiment, the first node and the second node in the present application both correspond to the UE201, for example, V2X communication is performed between the first node and the second node.

Example 3

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

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

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

As an embodiment, the first signaling in the present application is generated in the MAC sublayer 302.

As an embodiment, the first signaling in the present application is generated in the MAC sublayer 352.

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

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

As an embodiment, one of the bit blocks in the present application is generated in the SDAP sublayer 356.

As an embodiment, one of the bit blocks in the present application is generated in the RRC sublayer 306.

As an embodiment, one of the bit blocks in the present application is generated in the MAC sublayer 302.

As an embodiment, one of the bit blocks in the present application is generated in the MAC sublayer 352.

As an embodiment, one of the bit blocks in the present application is generated in the PHY301.

As an embodiment, one of the bit blocks in the present application is generated in the PHY351.

Example 4

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

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

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

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

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

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

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

As an embodiment, the first node in the present application includes the second communication device 450, and the second node in the present application includes the first communication device 410.

As a sub-embodiment of the above embodiment, the first node is a user equipment and the second node is a user equipment.

As a sub-embodiment of the above embodiment, the first node is a user equipment and the second node is a relay node.

As a sub-embodiment of the above embodiment, the first node is a relay node and the second node is a user equipment.

As a sub-embodiment of the above embodiment, the first node is a user equipment and the second node is a base station device.

As a sub-embodiment of the above embodiment, the first node is a relay node and the second node is a base station device.

As a sub-embodiment of the above embodiment, the second node is a user equipment and the first node is a base station device.

As a sub-embodiment of the above embodiment, the second node is a relay node, and the first node is a base station apparatus.

As a sub-embodiment of the above embodiment, the second communication device 450 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for error detection using a positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 means at least: receiving first signaling, wherein the first signaling comprises a first domain, and the first domain is used for indicating association between a PT-RS port and a DM-RS port; transmitting a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks; wherein the time domain density of the first sub-signal and the time domain density of the second sub-signal are related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal, respectively, or to an MCS index indicated by the same domain in the first signaling.

As a sub-embodiment of the above embodiment, the second communication device 450 corresponds to the first node in the present application.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving first signaling, wherein the first signaling comprises a first domain, and the first domain is used for indicating association between a PT-RS port and a DM-RS port; transmitting a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks; wherein the time domain density of the first sub-signal and the time domain density of the second sub-signal are related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal, respectively, or to an MCS index indicated by the same domain in the first signaling.

As one embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: transmitting first signaling, wherein the first signaling comprises a first domain, and the first domain is used for indicating association between a PT-RS port and a DM-RS port; receiving a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks; wherein the time domain density of the first sub-signal and the time domain density of the second sub-signal are related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal, respectively, or to an MCS index indicated by the same domain in the first signaling.

As a sub-embodiment of the above embodiment, the first communication device 410 corresponds to the second node in the present application.

As one embodiment, the first communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting first signaling, wherein the first signaling comprises a first domain, and the first domain is used for indicating association between a PT-RS port and a DM-RS port; receiving a first signal and a second signal, wherein the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks; wherein the time domain density of the first sub-signal and the time domain density of the second sub-signal are related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal, respectively, or to an MCS index indicated by the same domain in the first signaling.

As an embodiment at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used for receiving the first signaling in the present application.

As an example, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476 is used for transmitting the first signaling in the present application.

As an example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467 is used to transmit the first signal and the second signal in the present application.

As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used to receive the first signal and the second signal in the present application.

Example 5

Embodiment 5 illustrates a signal transmission flow diagram according to one embodiment of the application, as shown in fig. 5. In fig. 5, the first node U1 and the second node U2 communicate over an air interface.

The first node U1 receives the first signaling in step S511; the first signal and the second signal are transmitted in step S512.

The second node U2 transmitting the first signaling in step S521; the first signal and the second signal are received in step S522.

In embodiment 5, the first signaling includes a first field used to indicate an association between a PT-RS port and a DM-RS port; the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports respectively, and the second signal carries a plurality of bit blocks; whether the time domain density of the first sub-signal and the time domain density of the second sub-signal are associated to an MCS index indicated by the same domain in the first signaling or respectively to MCS indexes indicated by two different domains in the first signaling is related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal; the first MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the first MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the first sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling in an MCS index range to which the plurality of MCS index ranges in the first MCS index range set belong; the second MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the second MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the second sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling in an MCS index range belonging to the plurality of MCS index ranges in the second MCS index range set; the first signal comprises a first PT-RS, the first sub-signal comprises a portion of the first PT-RS occupying a first PT-RS port, and the second sub-signal comprises a portion of the first PT-RS occupying a second PT-RS port.

As a sub-embodiment of embodiment 5, the time domain density of the first sub-signal is associated to an MCS index indicated by a given domain in the first signaling; when the first domain in the first signaling indicates that a PT-RS port occupied by the second sub-signal is associated to a first DM-RS port, the time domain density of the second sub-signal is associated to the MCS index indicated by the given domain in the first signaling; when the first domain in the first signaling indicates that the PT-RS port occupied by the second sub-signal is associated to a second DM-RS port, the time domain density of the second sub-signal is associated to an MCS index indicated by a domain other than the given domain in the first signaling; the first DM-RS port and the second DM-RS port share the PT-RS port occupied by the second sub-signal; the first DM-RS port and the second DM-RS port respectively correspond to a first bit block and a second bit block, and the second signal carries the first bit block and the second bit block; the first bit block and the second bit block are each a transport block.

As a sub-embodiment of embodiment 5, the second signal carries a first bit block and a second bit block; when a first set of conditions is satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are respectively associated to MCS indexes indicated by two different domains in the first signaling; when a first set of conditions is not satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are associated to an MCS index indicated by a same domain in the first signaling; the first set of conditions relates to at least one of a transport layer occupied by the first bit block or a transport layer occupied by the second bit block.

As an embodiment, the first node U1 is the first node in the present application.

As an embodiment, the second node U2 is the second node in the present application.

As an embodiment, the first node U1 is a UE.

As an embodiment, the first node U1 is a base station.

As an embodiment, the second node U2 is a base station.

As an embodiment, the second node U2 is a UE.

As an embodiment, the air interface between the second node U2 and the first node U1 is a Uu interface.

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a cellular link.

As an embodiment, the air interface between the second node U2 and the first node U1 is a PC5 interface.

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a sidelink.

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a radio interface between a base station device and a user equipment.

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a wireless interface between a satellite device and a user device.

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a wireless interface between user equipment and user equipment.

As one embodiment, the problems to be solved by the present application include: how to determine the time domain density of PT-RS.

As one embodiment, the problems to be solved by the present application include: how to determine the time domain density of PT-RS according to the association relation between PT-RS ports and DM-RS ports.

As one embodiment, the problems to be solved by the present application include: how to determine whether signals transmitted on the 2 PT-RS ports have the same time domain density.

As one embodiment, the problems to be solved by the present application include: how to determine the MCS index associated with the PT-RS port.

As one embodiment, the problems to be solved by the present application include: how to improve the utilization efficiency of PT-RS or reduce the resource overhead of PT-RS.

As one embodiment, the problems to be solved by the present application include: how to enhance the transmission performance of the uplink.

Example 6

Embodiment 6 illustrates an explanatory diagram of determining an MCS index to which a time domain density of the second sub-signal is associated according to an embodiment of the present application, as shown in fig. 6. In fig. 6, a DM-RS port to which the PT-RS port occupied by the second sub-signal is associated is determined based on the indication of the first domain in the first signaling in S61; in S62, the time domain density of the second sub-signal is associated to an MCS index indicated by the given domain in the first signaling; in S63, the time domain density of the second sub-signal is associated to the MCS index indicated by a domain other than the given domain in the first signaling.

In embodiment 6, the time domain density of the first sub-signal is associated to an MCS index indicated by a given domain in the first signaling; when the first domain in the first signaling indicates that a PT-RS port occupied by the second sub-signal is associated to a first DM-RS port, the time domain density of the second sub-signal is associated to the MCS index indicated by the given domain in the first signaling; when the first domain in the first signaling indicates that the PT-RS port occupied by the second sub-signal is associated to a second DM-RS port, the time domain density of the second sub-signal is associated to an MCS index indicated by a domain other than the given domain in the first signaling; the first DM-RS port and the second DM-RS port share the PT-RS port occupied by the second sub-signal.

As an embodiment, the given domain in the first signaling and the one domain outside the given domain in the first signaling are each for different bit blocks.

As an embodiment, the given domain in the first signaling and the one domain outside the given domain in the first signaling indicate MCS (Modulation and coding scheme, modulation and coding strategy) for different transport blocks, respectively.

As an embodiment, the given domain in the first signaling and the one domain outside the given domain in the first signaling are Modulation and coding scheme domains for different transport blocks, respectively.

As an embodiment, the given domain in the first signaling and the one domain outside the given domain in the first signaling are a Modulation and coding scheme domain for transport block 1 and a Modulation and coding scheme domain for transport block 2, respectively.

As an embodiment, the given domain in the first signaling and the one domain outside the given domain in the first signaling are a Modulation and coding scheme domain for transport block 2 and a Modulation and coding scheme domain for transport block 1, respectively.

As an embodiment, the given domain in the first signaling and the one domain outside the given domain in the first signaling are a Modulation and coding scheme domain for transport block 1 and a Modulation and coding scheme domain for transport block 0, respectively.

As an embodiment, the given domain in the first signaling and the one domain outside the given domain in the first signaling are a Modulation and coding scheme domain for transport block 0 and a Modulation and coding scheme domain for transport block 1, respectively.

As an embodiment, the given field in the first signaling comprises 5 bits.

As an embodiment, the one domain outside the given domain in the first signaling comprises 5 bits.

As an embodiment, the given field in the first signaling comprises 6 bits.

As an embodiment, the one domain outside the given domain in the first signaling comprises 6 bits.

As an embodiment, the given field in the first signaling comprises 7 bits.

As an embodiment, the one domain outside the given domain in the first signaling comprises 7 bits.

As an embodiment, the given field in the first signaling comprises 8 bits.

As an embodiment, the one domain outside the given domain in the first signaling comprises 8 bits.

As one embodiment, the time domain density of the first sub-signal is associated to an MCS index indicated by a given domain in the first signaling; when the first domain in the first signaling indicates that a PT-RS port occupied by the second sub-signal is associated to a first DM-RS port, the time domain density of the second sub-signal is associated to the MCS index indicated by the given domain in the first signaling; when the first domain in the first signaling indicates that the PT-RS port occupied by the second sub-signal is associated to a second DM-RS port, the time domain density of the second sub-signal is associated to an MCS index indicated by a domain other than the given domain in the first signaling.

As an embodiment, the first DM-RS port and the second DM-RS port share the PT-RS port occupied by the second sub-signal.

As an embodiment, the first DM-RS port and the second DM-RS port are used for transmitting a first bit block and a second bit block, respectively, the second signal carrying the first bit block and the second bit block.

As an embodiment, the first DM-RS port and the second DM-RS port are associated to the PT-RS port occupied by the second sub-signal based on a configuration of higher layer signaling.

As an embodiment, the first DM-RS port and the second DM-RS port are associated to the PT-RS port occupied by the second sub-signal based on an indication of the first signaling.

As one embodiment, the first signaling indicates a first set of DM-RS ports including at least a first DM-RS port and a second DM-RS port.

As one embodiment, the time domain density of the first sub-signal is associated to an MCS index indicated by a given domain in the first signaling; when the first domain in the first signaling indicates that a PT-RS port occupied by the second sub-signal is associated to any DM-RS port in a first DM-RS port subset, the time domain density of the second sub-signal is associated to the MCS index indicated by the given domain in the first signaling; when the first domain in the first signaling indicates that the PT-RS port occupied by the second sub-signal is associated to any DM-RS port in a second DM-RS port subset, the time domain density of the second sub-signal is associated to an MCS index indicated by a domain other than the given domain in the first signaling.

As an embodiment, the first signaling indicates a first DM-RS port set, and the first DM-RS port subset and the second DM-RS port subset both belong to the first DM-RS port set.

As an embodiment, the first DM-RS port belongs to the first subset of DM-RS ports and the second DM-RS port belongs to the second subset of DM-RS ports.

As an embodiment, the first DM-RS port and the second DM-RS port belong to the same DM-RS CDM group.

As an embodiment, the first DM-RS port and the second DM-RS port are respectively associated to different transport blocks.

As an embodiment, the first DM-RS port and the second DM-RS port are used for different transport blocks, respectively.

As an embodiment, the first DM-RS port and the second DM-RS port correspond to a first transmission layer and a second transmission layer, respectively, and the first transmission layer and the second transmission layer are mapped to different codewords, respectively.

As an embodiment, the first DM-RS port and the second DM-RS port are mapped to a first transport layer and a second transport layer, respectively, the first transport layer and the second transport layer being mapped to different codewords, respectively.

As an embodiment, the association of one PT-RS port to one DM-RS port includes the following meanings: the channel used to transmit the signal transmitted on this DM-RS port can be inferred from the channel used to transmit the signal transmitted on this PT-RS port.

As an embodiment, the association of one PT-RS port to one DM-RS port includes the following meanings: the channel used to transmit the signal transmitted on this PT-RS port can be inferred from the channel used to transmit the signal transmitted on this DM-RS port.

As an embodiment, the PT-RS port occupied by the second sub-signal is PT-RS port 0 (PT-RS port 0).

As an embodiment, the PT-RS port occupied by the second sub-signal is PT-RS port 1 (PT-RS port 1).

As an embodiment, the PT-RS port occupied by the first sub-signal is PT-RS port 0 (PT-RS port 0).

As an embodiment, the PT-RS port occupied by the first sub-signal is PT-RS port 1 (PT-RS port 1).

As an embodiment, the first signaling is used to indicate a DM-RS port associated with a PT-RS port occupied by the first sub-signal.

As one embodiment, the MCS index indicated by the given domain in the first signaling is an MCS index used for a codeword mapped to a DM-RS port associated with at least a PT-RS port occupied by the first sub-signal.

Example 7

Embodiment 7 illustrates a schematic diagram of the relationship among the first DM-RS port, the second DM-RS port, the first bit block, the second bit block, and the second signal according to one embodiment of the present application, as shown in fig. 7.

In embodiment 7, the first DM-RS port and the second DM-RS port correspond to a first bit block and a second bit block, respectively, and the second signal carries the first bit block and the second bit block.

As an embodiment, the first bit block and the second bit block are mapped to different codewords (codewiord), respectively.

As an embodiment, the first bit block and the second bit block are mapped to codeword 0 and codeword 1, respectively.

As an embodiment, the first bit block and the second bit block are mapped to codeword 1 and codeword 0, respectively.

As an embodiment, the first bit block and the second bit block comprise different transport blocks, respectively.

As an embodiment, the first bit block and the second bit block comprise a transport block 1 and a transport block 2, respectively.

As an embodiment, the first bit block and the second bit block comprise a transport block 2 and a transport block 1, respectively.

As an embodiment, the first bit block and the second bit block comprise transport block 0 and transport block 1, respectively.

As an embodiment, the first bit block and the second bit block comprise transport block 1 and transport block 0, respectively.

As an embodiment, the expressing that the first DM-RS port and the second DM-RS port correspond to a first bit block and a second bit block respectively includes: the first DM-RS port and the second DM-RS port are mapped to a first transport layer and a second transport layer, respectively, the first transport layer and the second transport layer being mapped to the first bit block and the second bit block, respectively.

As an embodiment, the expressing that the first DM-RS port and the second DM-RS port correspond to a first bit block and a second bit block respectively includes: the first DM-RS port and the second DM-RS port are used to infer a channel used to transmit the first block of bits and a channel used to transmit the second block of bits, respectively.

As an embodiment, the expressing that the first DM-RS port and the second DM-RS port correspond to a first bit block and a second bit block respectively includes: the first DM-RS port and the second DM-RS port are associated with the first bit block and the second bit block, respectively.

As an embodiment, the expressing that the first DM-RS port and the second DM-RS port correspond to a first bit block and a second bit block respectively includes: the first DM-RS port and the second DM-RS port are mapped to a first transmission layer and a second transmission layer respectively, and the first bit block and the second bit block occupy the first transmission layer and the second transmission layer respectively.

Example 8

Embodiment 8 illustrates an explanatory diagram when the first condition set is satisfied or not satisfied according to an embodiment of the present application, as shown in fig. 8.

In embodiment 8, when a first set of conditions is satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are respectively associated to MCS indexes indicated by two different domains in the first signaling; when a first set of conditions is not satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are associated to an MCS index indicated by a same domain in the first signaling.

As an embodiment, when a first set of conditions is not satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are respectively associated to MCS indexes indicated by two different domains in the first signaling; when a first set of conditions is satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are associated to an MCS index indicated by a same domain in the first signaling.

As an embodiment, the two different domains in the first signaling are Modulation and coding scheme domains for different transport blocks, respectively.

As an embodiment, the two different domains in the first signaling are Modulation and coding scheme domain for transport block 1 and Modulation and coding scheme domain for transport block 2, respectively.

As an embodiment, the two different domains in the first signaling are Modulation and coding scheme domain for transport block 2 and Modulation and coding scheme domain for transport block 1, respectively.

As an embodiment, the two different domains in the first signaling are Modulation and coding scheme domain for transport block 1 and Modulation and coding scheme domain for transport block 0, respectively.

As an embodiment, the two different domains in the first signaling are Modulation and coding scheme domain for transport block 0 and Modulation and coding scheme domain for transport block 1, respectively.

As an embodiment, the one field in the first signaling indicating the MCS index comprises 5 bits.

As an embodiment, one field in the first signaling indicating the MCS index comprises 6 bits.

As an embodiment, one field in the first signaling indicating the MCS index includes 7 bits.

As an embodiment, the one field in the first signaling indicating the MCS index comprises 8 bits.

As an embodiment, the same domain in the first signaling is a Modulation and coding scheme domain.

As an embodiment, the same domain in the first signaling is a Modulation and coding scheme domain for transport block 1.

As an embodiment, the same field in the first signaling is a Modulation and coding scheme field for transport block 2 and a Modulation and coding scheme field for transport block 1.

As an embodiment, the same domain in the first signaling is a Modulation and coding scheme domain for transport block 0.

As an embodiment, the second signal carries a first block of bits and a second block of bits.

As one embodiment, the first set of conditions is satisfied when all conditions in the first set of conditions are satisfied; when any one of the first set of conditions is not satisfied, the first set of conditions is not satisfied.

As an embodiment, when all conditions in the first set of conditions are not satisfied, the first set of conditions is not satisfied; the first set of conditions is satisfied when any one of the first set of conditions is satisfied.

As an embodiment, the first set of conditions relates to at least one of a transport layer occupied by the first bit block or a transport layer occupied by the second bit block.

As an embodiment, the first set of conditions relates to at least one of a number of transport layers occupied by the first bit block or a number of transport layers occupied by the second bit block.

As one embodiment, the first set of conditions relates to a mapping relationship between a transmission layer and a DM-RS CDM group (CDM group) in the second signal.

As an embodiment, the first set of conditions relates to a mapping relationship between a transport layer and DM-RS ports in the second signal.

As an embodiment, the first condition set relates to an association relationship between DM-RS ports and PT-RS ports.

As an embodiment, the first condition set relates to a mapping relationship between at least one of a transport layer occupied by the first bit block or a transport layer occupied by the second bit block and a DM-RS port.

As an embodiment, the first condition set relates to an association relationship between a DM-RS port and a PT-RS port mapped to at least one of a transport layer occupied by the first bit block or a transport layer occupied by the second bit block.

As an embodiment, the first condition set includes: the DM-RS port mapped to by at least one transmission layer occupied by the first bit block and the DM-RS port mapped to by at least one transmission layer occupied by the second bit block belong to the same CDM group.

As an embodiment, the first condition set includes: the DM-RS port mapped to by at least one transmission layer occupied by the first bit block and the DM-RS port mapped to by at least one transmission layer occupied by the second bit block respectively belong to different CDM groups.

As an embodiment, the first condition set includes: the DM-RS port mapped to by any transport layer occupied by the first bit block is associated to the PT-RS port occupied by the first sub-signal and the DM-RS port mapped to by any transport layer occupied by the second bit block is associated to the PT-RS port occupied by the second sub-signal.

As an embodiment, the first condition set includes: the DM-RS port mapped to by any transport layer occupied by the first bit block is associated to the PT-RS port occupied by the second sub-signal and the DM-RS port mapped to by any transport layer occupied by the second bit block is associated to the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: the DM-RS port mapped to by any transport layer occupied by the first bit block is associated to the PT-RS port occupied by the first sub-signal and the DM-RS port mapped to by any transport layer occupied by the second bit block is associated to the PT-RS port occupied by the second sub-signal, or the DM-RS port mapped to by any transport layer occupied by the first bit block is associated to the PT-RS port occupied by the second sub-signal and the DM-RS port mapped to by any transport layer occupied by the second bit block is associated to the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: the DM-RS port with the smallest index mapped to by the transport layer occupied by the first bit block is associated to the PT-RS port occupied by the first sub-signal and the DM-RS port with the smallest index mapped to by the transport layer occupied by the second bit block is associated to the PT-RS port occupied by the second sub-signal.

As an embodiment, the first condition set includes: the DM-RS port with the smallest index mapped to by the transport layer occupied by the first bit block is associated to the PT-RS port occupied by the second sub-signal and the DM-RS port with the smallest index mapped to by the transport layer occupied by the second bit block is associated to the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: the DM-RS port with the smallest index mapped to by the transmission layer occupied by the first bit block is associated to the PT-RS port occupied by the first sub-signal and the DM-RS port with the smallest index mapped to by the transmission layer occupied by the second bit block is associated to the PT-RS port occupied by the second sub-signal, or the DM-RS port with the smallest index mapped to the transmission layer occupied by the first bit block is associated to the PT-RS port occupied by the second sub-signal and the DM-RS port with the smallest index mapped to by the transmission layer occupied by the second bit block is associated to the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: the DM-RS port with the largest index mapped to by the transport layer occupied by the first bit block is associated to the PT-RS port occupied by the first sub-signal and the DM-RS port with the largest index mapped to by the transport layer occupied by the second bit block is associated to the PT-RS port occupied by the second sub-signal.

As an embodiment, the first condition set includes: the DM-RS port with the largest index mapped to by the transport layer occupied by the first bit block is associated to the PT-RS port occupied by the second sub-signal and the DM-RS port with the largest index mapped to by the transport layer occupied by the second bit block is associated to the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: the DM-RS port with the largest index mapped to by the transmission layer occupied by the first bit block is associated to the PT-RS port occupied by the first sub-signal and the DM-RS port with the largest index mapped to by the transmission layer occupied by the second bit block is associated to the PT-RS port occupied by the second sub-signal, or the DM-RS port with the largest index mapped to the transmission layer occupied by the first bit block is associated to the PT-RS port occupied by the second sub-signal and the DM-RS port with the largest index mapped to by the transmission layer occupied by the second bit block is associated to the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: one transport layer occupied by the first bit block is mapped to a DM-RS port with the largest index associated with a PT-RS port occupied by the first sub-signal and one transport layer occupied by the second bit block is mapped to a DM-RS port with the largest index associated with a PT-RS port occupied by the second sub-signal.

As an embodiment, the first condition set includes: one transport layer occupied by the first bit block is mapped to a DM-RS port with the largest index associated with the PT-RS port occupied by the second sub-signal and one transport layer occupied by the second bit block is mapped to a DM-RS port with the largest index associated with the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: one transport layer occupied by the first bit block is mapped to a DM-RS port with the largest index associated with the PT-RS port occupied by the first sub-signal and one transport layer occupied by the second bit block is mapped to a DM-RS port with the largest index associated with the PT-RS port occupied by the second sub-signal, or one transport layer occupied by the first bit block is mapped to a DM-RS port with the largest index associated with the PT-RS port occupied by the second sub-signal and one transport layer occupied by the second bit block is mapped to a DM-RS port with the largest index associated with the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: one transport layer occupied by the first bit block is mapped to a DM-RS port with a smallest index associated with a PT-RS port occupied by the first sub-signal and one transport layer occupied by the second bit block is mapped to a DM-RS port with a smallest index associated with a PT-RS port occupied by the second sub-signal.

As an embodiment, the first condition set includes: one transport layer occupied by the first bit block is mapped to a DM-RS port with a smallest index associated with a PT-RS port occupied by the second sub-signal and one transport layer occupied by the second bit block is mapped to a DM-RS port with a smallest index associated with a PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: one transport layer occupied by the first bit block is mapped to a DM-RS port with the smallest index associated with the PT-RS port occupied by the first sub-signal and one transport layer occupied by the second bit block is mapped to a DM-RS port with the smallest index associated with the PT-RS port occupied by the second sub-signal, or one transport layer occupied by the first bit block is mapped to a DM-RS port with the smallest index associated with the PT-RS port occupied by the second sub-signal and one transport layer occupied by the second bit block is mapped to a DM-RS port with the smallest index associated with the PT-RS port occupied by the first sub-signal.

As an embodiment, the first condition set includes: the number of transport layers occupied by the first bit block belongs to a first number set comprising at least one number.

As an embodiment, the first condition set includes: one of the number of transport layers occupied by the first bit block or the number of transport layers occupied by the second bit block belongs to a first number set, the first number set comprising at least one number.

As an embodiment, the first bit block occupies at least one transport layer and the second bit block occupies at least one transport layer.

As an embodiment, the one transport layer occupied by the first bit block is one transport layer to which the codeword to which the first bit block is mapped.

As an embodiment, the one transport layer occupied by the second bit block is one transport layer to which the codeword to which the second bit block is mapped.

As an embodiment, a transport layer occupied by the first bit block is used to carry at least part of the encoded bits generated by the first bit block.

As an embodiment, a transport layer occupied by the second bit block is used to carry at least part of the encoded bits generated by the second bit block.

As an embodiment, a transport layer occupied by the first bit block is used to map at least part of the modulation symbols generated by the coded bits generated by the first bit block.

As an embodiment, a transport layer occupied by the second bit block is used to map at least part of the modulation symbols generated by the coded bits generated by the second bit block.

As an embodiment, the first signaling is used to indicate a transport layer occupied by the first bit block.

As an embodiment, the first signaling is used to indicate the transport layer occupied by the second bit block.

As an embodiment, the first signaling explicitly indicates a transport layer occupied by the first bit block.

As an embodiment, the first signaling explicitly indicates the transport layer occupied by the second bit block.

As an embodiment, the first signaling implicitly indicates a transport layer occupied by the first bit block.

As an embodiment, the first signaling implicitly indicates a transport layer occupied by the second bit block.

Example 9

Embodiment 9 illustrates an explanatory diagram in which a first set of conditions is satisfied according to one embodiment of the present application, as shown in fig. 9.

In embodiment 9, the first set of conditions is satisfied when the number of transport layers occupied by the first bit block belongs to a first set of numbers.

As an embodiment, the first set of numbers comprises at least one number.

As an embodiment, the first number set comprises {2,3}.

As an embodiment, the first number set comprises {3}.

As an embodiment, the first number set comprises {2,3,4,5,6,7}.

As an embodiment, the first number set comprises {3,4,5,6,7}.

As an embodiment, the first number set comprises {4,5,6,7}.

As an embodiment, the first number set comprises {5,6,7}.

As an embodiment, the first number set comprises {6,7}.

As an embodiment, the first number set comprises {7}.

Example 10

Embodiment 10 illustrates a schematic diagram of the relationship between the first MCS index range set, the time domain density of the first sub-signal, the second MCS index range set and the time domain density of the second sub-signal according to an embodiment of the present application, as shown in fig. 10.

In embodiment 10, the first MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the first MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the first sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling among the plurality of MCS index ranges in the first MCS index range set; the second MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the second MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the second sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling among the plurality of MCS index ranges in the second MCS index range set.

As one embodiment, the first MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the first MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the first sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling among the plurality of MCS index ranges in the first MCS index range set.

As one embodiment, the second MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the second MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the second sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling among the plurality of MCS index ranges in the second MCS index range set.

As one embodiment, the first MCS index range set includes 2 MCS index ranges.

As one embodiment, the first MCS index range set includes 3 MCS index ranges.

As one embodiment, the first MCS index range set includes 4 MCS index ranges.

As an embodiment, any 2 MCS index ranges in the first MCS index range set do not overlap each other.

As one embodiment, any MCS index range in the first set of MCS index ranges includes at least one MCS index.

As an embodiment, any MCS index range in the first set of MCS index ranges is configurable.

As an embodiment, one MCS index range of the first set of MCS index ranges is configured by higher layer signaling.

As an embodiment, one MCS index range of the first set of MCS index ranges is configured by at least one parameter provided by the higher layer parameter PTRS-DownlinkConfig.

As one embodiment, at least one higher layer parameter is used to partition the plurality of MCS index ranges in the first set of MCS index ranges.

As one embodiment, the second MCS index range set includes 2 MCS index ranges.

As one embodiment, the second MCS index range set includes 3 MCS index ranges.

As one embodiment, the second MCS index range set includes 4 MCS index ranges.

As an embodiment, any 2 MCS index ranges in the second MCS index range set do not overlap each other.

As an embodiment, any MCS index range in the second set of MCS index ranges includes at least one MCS index.

As an embodiment, any MCS index range in the second set of MCS index ranges is configurable.

As an embodiment, one MCS index range of the second set of MCS index ranges is configured by higher layer signaling.

As an embodiment, one MCS index range of the second set of MCS index ranges is configured by at least one parameter provided by the higher layer parameter PTRS-DownlinkConfig.

As one embodiment, at least one higher layer parameter is used to partition the plurality of MCS index ranges in the second set of MCS index ranges.

As one embodiment, the first MCS index range set is the same as the second MCS index range set.

As one embodiment, the first MCS index range set is different from the second MCS index range set.

As one embodiment, the second MCS index range set is the first MCS index range set.

As one embodiment, the plurality of time domain densities corresponding to the plurality of MCS index ranges in the first MCS index range set include {4,2,1}.

As one embodiment, the plurality of time domain densities corresponding to the plurality of MCS index ranges in the second MCS index range set include {4,2,1}.

As one embodiment, the first MCS index range set includes an MCS index range # {1,0}, an MCS index range # {1,1}, an MCS index range # {1, K }, the K being a positive integer; for any non-negative integer K not greater than K, MCS index range # {1, K } corresponds to time domain density # {1, K }; when the MCS index indicated by one field in the first signaling associated with the time domain density of the first sub-signal belongs to an MCS index range # {1, j }, the time domain density of the first sub-signal is a time domain density # {1, j }, the j being a non-negative integer not greater than the K.

As an embodiment, the K is equal to 1.

As an embodiment, said K is equal to 2.

As an embodiment, the K is equal to 3.

As an embodiment, said K is equal to 4.

As an embodiment, the K is not greater than 1023.

As one embodiment, the second MCS index range set includes an MCS index range # {2,0}, an MCS index range # {2,1}, an MCS index range # {2, N }, the N being a positive integer; for any non-negative integer N not greater than N, MCS index range # {2, N } corresponds to time domain density # {2, N }; when the MCS index indicated by one domain in the first signaling associated with the time domain density of the second sub-signal belongs to an MCS index range # {2, i }, the time domain density of the second sub-signal is a time domain density # {2, i }, the i being a non-negative integer not greater than the N.

As an embodiment, said N is equal to 1.

As an embodiment, said N is equal to 2.

As an embodiment, the N is equal to 3.

As an embodiment, said N is equal to 4.

As one embodiment, the N is no greater than 1023.

Example 11

Embodiment 11 illustrates a first signal, a first sub-signal and a second sub-signal according to an embodiment of the present application, as shown in fig. 11.

In embodiment 11, the first signal includes a first PT-RS, the first sub-signal includes a portion of the first PT-RS occupying a first PT-RS port, and the second sub-signal includes a portion of the first PT-RS occupying a second PT-RS port

As an embodiment, the first PT-RS port and the second PT-RS port are two different PT-RS ports (PT-RS ports), respectively.

As an embodiment, the first PT-RS port and the second PT-RS port are respectively associated to different PUSCH antenna ports.

As an embodiment, the first PT-RS port is PT-RS port 0 and the second PT-RS port is PT-RS port 1.

As an embodiment, the first PT-RS port is PT-RS port 1 and the second PT-RS port is PT-RS port 0.

Example 12

Embodiment 12 illustrates a block diagram of the processing means in the first node device, as shown in fig. 12. In fig. 12, a first node device processing apparatus 1200 includes a first receiver 1201 and a first transmitter 1202.

As an embodiment, the first node device 1200 is a base station.

As an embodiment, the first node device 1200 is a user device.

As an embodiment, the first node device 1200 is a relay node.

As an embodiment, the first node device 1200 is an in-vehicle communication device.

As an embodiment, the first node device 1200 is a user device supporting V2X communication.

As an embodiment, the first node device 1200 is a relay node supporting V2X communication.

As an embodiment, the first node device 1200 is a user device supporting operation over a high frequency spectrum.

As an embodiment, the first node device 1200 is a user device that supports operation on a shared spectrum.

As an example, the first receiver 1201 includes at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first receiver 1201 includes at least the first five of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first receiver 1201 includes at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first receiver 1201 includes at least the first three of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an example, the first receiver 1201 includes at least two of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As one example, the first transmitter 1202 includes at least one of the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As one example, the first transmitter 1202 includes at least the first five of the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As one example, the first transmitter 1202 includes at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As one example, the first transmitter 1202 includes at least the first three of the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As one example, the first transmitter 1202 includes at least a first of the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As an embodiment, the first receiver 1201 receives first signaling, where the first signaling includes a first field, and the first field is used to indicate an association between a PT-RS port and a DM-RS port; the first transmitter 1202 sends a first signal and a second signal, where the first signal includes a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports, respectively, and the second signal carries a plurality of bit blocks; wherein the time domain density of the first sub-signal and the time domain density of the second sub-signal are related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal, respectively, or to an MCS index indicated by the same domain in the first signaling.

As one embodiment, the time domain density of the first sub-signal is associated to an MCS index indicated by a given domain in the first signaling; when the first domain in the first signaling indicates that a PT-RS port occupied by the second sub-signal is associated to a first DM-RS port, the time domain density of the second sub-signal is associated to the MCS index indicated by the given domain in the first signaling; when the first domain in the first signaling indicates that the PT-RS port occupied by the second sub-signal is associated to a second DM-RS port, the time domain density of the second sub-signal is associated to an MCS index indicated by a domain other than the given domain in the first signaling; the first DM-RS port and the second DM-RS port share the PT-RS port occupied by the second sub-signal.

As an embodiment, the first DM-RS port and the second DM-RS port correspond to a first bit block and a second bit block, respectively, and the second signal carries the first bit block and the second bit block.

As an embodiment, the second signal carries a first block of bits and a second block of bits; when a first set of conditions is satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are respectively associated to MCS indexes indicated by two different domains in the first signaling; when a first set of conditions is not satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are associated to an MCS index indicated by a same domain in the first signaling; the first set of conditions relates to at least one of a transport layer occupied by the first bit block or a transport layer occupied by the second bit block.

As an embodiment, the first set of conditions is satisfied when the number of transport layers occupied by the first bit block belongs to a first set of numbers; the first set of quantities includes at least one quantity.

As one embodiment, the first MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the first MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the first sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling among the plurality of MCS index ranges in the first MCS index range set; the second MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the second MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the second sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling among the plurality of MCS index ranges in the second MCS index range set.

As an embodiment, the first signal includes a first PT-RS, the first sub-signal includes a portion of the first PT-RS occupying a first PT-RS port, and the second sub-signal includes a portion of the first PT-RS occupying a second PT-RS port.

Example 13

Embodiment 13 illustrates a block diagram of the processing means in a second node device, as shown in fig. 13. In fig. 13, the second node device processing apparatus 1300 includes a second transmitter 1301 and a second receiver 1302.

As an embodiment, the second node device 1300 is a user device.

As an embodiment, the second node device 1300 is a base station.

As one embodiment, the second node apparatus 1300 is a satellite apparatus.

As an embodiment, the second node device 1300 is a relay node.

As one embodiment, the second node apparatus 1300 is an in-vehicle communication apparatus.

As an embodiment, the second node device 1300 is a user device supporting V2X communication.

As one embodiment, the second node apparatus 1300 is an apparatus supporting an operation on a high frequency spectrum.

As one embodiment, the second node device 1300 is a device that supports operation on a shared spectrum.

As an embodiment, the second node apparatus 1300 is one of a testing device, a testing apparatus, and a testing meter.

As an example, the second transmitter 1301 includes at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As one example, the second transmitter 1301 includes at least the first five of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As one example, the second transmitter 1301 includes at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second transmitter 1301 includes at least the first three of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As one example, the second transmitter 1301 includes at least the first two of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an example, the second receiver 1302 includes at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As one example, the second receiver 1302 includes at least the first five of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As one example, the second receiver 1302 includes at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As one example, the second receiver 1302 includes at least three of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As one example, the second receiver 1302 includes at least the first two of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As an embodiment, the second transmitter 1301 transmits first signaling including a first field used to indicate association between PT-RS ports and DM-RS ports; the second receiver 1302 receives a first signal and a second signal, where the first signal includes a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal occupy 2 PT-RS ports, respectively, and the second signal carries a plurality of bit blocks; wherein the time domain density of the first sub-signal and the time domain density of the second sub-signal are related to at least one of an indication of the first domain in the first signaling or an allocation of a transport layer in the second signal, respectively, or to an MCS index indicated by the same domain in the first signaling.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The first node device in the application comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an internet card, a low-power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned plane, a remote control airplane and other wireless communication devices. The second node device in the application comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an internet card, a low-power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned plane, a remote control airplane and other wireless communication devices. The user equipment or the UE or the terminal in the application comprises, but is not limited to, mobile phones, tablet computers, notebooks, network cards, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle-mounted communication equipment, aircrafts, planes, unmanned planes, remote control planes and other wireless communication equipment. The base station equipment or the base station or the network side equipment in the application comprises, but is not limited to, macro cell base station, micro cell base station, home base station, relay base station, eNB, gNB, transmission receiving node TRP, GNSS, relay satellite, satellite base station, air base station, testing device, testing equipment, testing instrument and other equipment.

It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the presently disclosed embodiments are considered in all respects to be illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, wherein the time domain density of the first sub-signal is associated to an MCS index indicated by a given domain in the first signaling; when the first domain in the first signaling indicates that a PT-RS port occupied by the second sub-signal is associated to a first DM-RS port, the time domain density of the second sub-signal is associated to the MCS index indicated by the given domain in the first signaling; when the first domain in the first signaling indicates that the PT-RS port occupied by the second sub-signal is associated to a second DM-RS port, the time domain density of the second sub-signal is associated to an MCS index indicated by a domain other than the given domain in the first signaling; the first DM-RS port and the second DM-RS port share the PT-RS port occupied by the second sub-signal.

3. The first node of claim 2, wherein the first DM-RS port and the second DM-RS port correspond to a first bit block and a second bit block, respectively, the second signal carrying the first bit block and the second bit block.

4. The first node of claim 1, wherein the second signal carries a first block of bits and a second block of bits; when a first set of conditions is satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are respectively associated to MCS indexes indicated by two different domains in the first signaling; when a first set of conditions is not satisfied, the time domain density of the first sub-signal and the time domain density of the second sub-signal are associated to an MCS index indicated by a same domain in the first signaling; the first set of conditions relates to at least one of a transport layer occupied by the first bit block or a transport layer occupied by the second bit block.

5. The first node of claim 4, wherein the first set of conditions is satisfied when the number of transport layers occupied by the first bit block belongs to a first set of numbers; the first set of quantities includes at least one quantity.

6. The first node of any of claims 1-5, wherein a first set of MCS index ranges includes a plurality of MCS index ranges, the plurality of MCS index ranges in the first set of MCS index ranges corresponding to a plurality of time domain densities, respectively, the time domain density of the first sub-signal being a time domain density to which an MCS index indicated by a domain in the first signaling corresponds to an MCS index range of the plurality of MCS index ranges in the first set of MCS index ranges; the second MCS index range set includes a plurality of MCS index ranges, the plurality of MCS index ranges in the second MCS index range set respectively correspond to a plurality of time domain densities, and the time domain density of the second sub-signal is a time domain density corresponding to an MCS index indicated by a domain in the first signaling among the plurality of MCS index ranges in the second MCS index range set.

7. The first node of any of claims 1 to 6, wherein the first signal comprises a first PT-RS, the first sub-signal comprises a portion of the first PT-RS occupying a first PT-RS port, and the second sub-signal comprises a portion of the first PT-RS occupying a second PT-RS port.

8. A second node for wireless communication, comprising:

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

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