CN116074973A - Method and apparatus in a node for wireless communication - Google Patents

Abstract

A method and apparatus in a node for wireless communication is disclosed. The first node receives a first signaling and M signals; the first signaling includes scheduling information of the M signals; the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling includes a first domain, the first domain in the first signaling and a maximum value in the M integers are used together to determine a first DMRS port set, and a DMRS port occupied by any one of the M signals belongs to the first DMRS port set. According to the method, when one DCI schedules a plurality of PDSCHs, different PDSCHs are supported to carry different numbers of TB, and scheduling flexibility is improved.

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

Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. To meet the different performance requirements of various application scenarios, studies on NR (New Radio) (or 5G) systems are decided on the 3GPP (3 rd Generation Partner Project, third generation partnership project) RAN (Radio Access Network ) #72 full-scale. The standardization Work for NR starts with WI (Work Item) that passed NR at 3gpp ran#75 full session. The decision to start the work of SI (Study Item) and WI of NR R-17 is taken at 3gpp ran#86 full-meeting and the SI and WI of NR R-18 are expected to stand at 3gpp ran#94e full-meeting. Research projects for 71GHz spectrum communication were passed on the 3GPP NAN#86 meeting.

In the 71GHz spectrum, a higher subcarrier spacing (e.g., 960 kHz) would be employed. At such high subcarrier spacing, the length of each slot (slot) will be greatly shortened, thereby greatly increasing the complexity of the UE (User Equipment) monitoring the PDCCH (Physical Downlink Control Channel ). To alleviate the burden of the UE monitoring the PDCCH, a method of scheduling multiple PDSCH (Physical Downlink Shared Channel )/PUSCH (Physical Uplink Shared CHannel, physical uplink shared channel) by the same DCI (Downlink Control Information ) is introduced.

Disclosure of Invention

In NR R15 and R16, one PDSCH may carry at most two TBs (Transport blocks) mapped to two codewords (codewiords), respectively. The two TBs may be dynamically activated (enabled) or deactivated (disabled) in each schedule, respectively. Different codewords are mapped to different layers (layers), so the number of layers of PDSCH carrying different numbers of TBs is different, and the number of occupied DMRS (DeModulation Reference Signals, demodulation reference signal) ports is also different. The applicant found through research how to instruct DMRS ports to be a problem to be solved when multiple PDSCH are scheduled by the same DCI and the number of TBs carried by different PDSCH is different.

In view of the above, the present application discloses a solution. It should be noted that, although the above description uses the cellular network and PDSCH transmission as an example, the present application is also applicable to other scenarios such as Sidelink (Sidelink) transmission and PUSCH transmission, and achieves technical effects similar to those in the cellular network and PDSCH transmission. Furthermore, the adoption of unified solutions for different scenarios (including but not limited to cellular network, sidelink, PDSCH and PUSCH) also helps to reduce hardware complexity and cost. Embodiments in a first node and features in embodiments of the present application may be applied to a second node and vice versa without conflict. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

As an example, the term (terminality) 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, comprising the following steps:

receiving a first signaling, wherein the first signaling comprises scheduling information of M signals, and M is a positive integer greater than 1;

receiving the M signals;

wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

As one embodiment, the problems to be solved by the present application include: how to indicate DMRS ports when multiple PDSCH are scheduled by the same DCI and the number of TBs carried by different PDSCH is different. The method determines the first DMRS port set according to the maximum value of the number of TBs carried by the M signals, which solves the problem.

As one embodiment, the features of the above method include: the M signals occupy M PDSCH respectively, the first field in the first signaling indicates DMRS ports of the M signals, and interpretation of the first field in the first signaling is related to a maximum value of the number of TBs carried by the M signals.

As one example, the benefits of the above method include: supporting different signals of the M signals to carry different numbers of TB increases scheduling flexibility.

According to one aspect of the application, the first domain in the first signaling indicates the first DMRS port set from a target DMRS port set pool; the target DMRS port set pool is a first DMRS port set pool or a second DMRS port set pool, the maximum value of the M integers is used to determine the target DMRS port set pool from the first DMRS port set pool and the second DMRS port set pool; the first DMRS port set pool and the second DMRS port set pool each include a plurality of DMRS port sets.

According to one aspect of the application, the first signaling includes a second domain, a third domain, a fourth domain, and a fifth domain; at least one of the second domain in the first signaling and the fourth domain in the first signaling indicates MCSs of the M signals; the third domain in the first signaling comprises M bit groups, and the M bit groups in the third domain in the first signaling are in one-to-one correspondence with the M signals; the fifth domain in the first signaling comprises M bit groups, and the M bit groups in the fifth domain in the first signaling are in one-to-one correspondence with the M signals; the first signal is one of the M signals; the M groups of bits in the third field of the first signaling and the second field of the first signaling are used together to determine whether the first signal carries a first TB, and the M groups of bits in the fifth field of the first signaling and the fourth field of the first signaling are used together to determine whether the first signal carries a second TB.

According to an aspect of the present application, when the maximum value of the M integers is equal to 2, the first DMRS port set includes a first DMRS port subset and a second DMRS port subset; the first signal is one of the M signals; whether the first signal carries one TB or two TBs is used to determine whether the first signal occupies only one or two of the first and second DMRS port subsets.

According to an aspect of the application, the first signaling includes a second domain and a fourth domain, at least one of the second domain in the first signaling and the fourth domain in the first signaling indicating MCSs of the M signals; when the first signal carries only a first target TB, whether the first signal occupies the first subset of DMRS ports or whether the second subset of DMRS ports is related to whether an MCS of the first target TB is indicated by the second field in the first signaling or by the fourth field in the first signaling.

As one example, the benefits of the above method include: the DMRS port occupied by the signal carrying only one TB is indirectly indicated in an implicit manner, so that the cost of adding DCI is avoided.

According to an aspect of the present application, when the first signal carries only a first target TB, the first signal always occupies the first subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports.

As one example, the benefits of the above method include: the position of the DMRS port occupied by the signal carrying only one TB in the first DMRS port set is default, so that the cost of adding DCI is avoided.

According to one aspect of the present application, it is characterized by comprising:

receiving a first information block;

wherein the first information block indicates a maximum value of the M.

According to an aspect of the application, the first node comprises a user equipment.

According to an aspect of the application, the first node comprises a relay node.

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

transmitting a first signaling, wherein the first signaling comprises scheduling information of M signals, and M is a positive integer greater than 1;

transmitting the M signals;

wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

According to one aspect of the application, the first domain in the first signaling indicates the first DMRS port set from a target DMRS port set pool; the target DMRS port set pool is a first DMRS port set pool or a second DMRS port set pool, the maximum value of the M integers is used to determine the target DMRS port set pool from the first DMRS port set pool and the second DMRS port set pool; the first DMRS port set pool and the second DMRS port set pool each include a plurality of DMRS port sets.

According to one aspect of the application, the first signaling includes a second domain, a third domain, a fourth domain, and a fifth domain; at least one of the second domain in the first signaling and the fourth domain in the first signaling indicates MCSs of the M signals; the third domain in the first signaling comprises M bit groups, and the M bit groups in the third domain in the first signaling are in one-to-one correspondence with the M signals; the fifth domain in the first signaling comprises M bit groups, and the M bit groups in the fifth domain in the first signaling are in one-to-one correspondence with the M signals; the first signal is one of the M signals; the M groups of bits in the third field of the first signaling and the second field of the first signaling are used together to determine whether the first signal carries a first TB, and the M groups of bits in the fifth field of the first signaling and the fourth field of the first signaling are used together to determine whether the first signal carries a second TB.

According to an aspect of the present application, when the maximum value of the M integers is equal to 2, the first DMRS port set includes a first DMRS port subset and a second DMRS port subset; the first signal is one of the M signals; whether the first signal carries one TB or two TBs is used to determine whether the first signal occupies only one or two of the first and second DMRS port subsets.

According to an aspect of the application, the first signaling includes a second domain and a fourth domain, at least one of the second domain in the first signaling and the fourth domain in the first signaling indicating MCSs of the M signals; when the first signal carries only a first target TB, whether the first signal occupies the first subset of DMRS ports or whether the second subset of DMRS ports is related to whether an MCS of the first target TB is indicated by the second field in the first signaling or by the fourth field in the first signaling.

According to an aspect of the present application, when the first signal carries only a first target TB, the first signal always occupies the first subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports.

According to one aspect of the present application, it is characterized by comprising:

transmitting a first information block;

wherein the first information block indicates a maximum value of the M.

According to an aspect of the application, the second node is a base station.

According to an aspect of the application, the second node is a user equipment.

According to an aspect of the application, the second node is a relay node.

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

a first receiver that receives a first signaling and M signals, the first signaling including scheduling information of the M signals, M being a positive integer greater than 1;

wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

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

a first transmitter that transmits a first signaling and M signals, the first signaling including scheduling information of the M signals, M being a positive integer greater than 1;

wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

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

under the condition that one DCI schedules a plurality of PDSCHs, different PDSCHs are supported to carry different numbers of TB, and scheduling flexibility is improved.

The DCI indicates the DMRS ports of the PDSCH carrying 2 TB in the PDSCH, and indicates the DMRS ports of the PDSCH carrying only 1 TB in the PDSCH in an implicit or default mode, thereby avoiding the increase of the expenditure of the scheduling signaling.

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 shows a flow chart of a first signaling and M signals according to one embodiment of the present application;

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

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

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

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

fig. 6 shows a schematic diagram of a first DMRS port set pool and a second DMRS port set pool of M integers according to one embodiment of the present application;

fig. 7 shows a schematic diagram of a first signaling comprising a second domain, a third domain, a fourth domain and a fifth domain according to an embodiment of the present application;

fig. 8 is a schematic diagram of first signaling used to determine whether a first signal carries a first TB and a second TB according to one embodiment of the present application;

Fig. 9 shows a schematic diagram of a first signaling comprising a sixth domain and a seventh domain according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of M signals according to one embodiment of the present application;

fig. 11 is a schematic diagram showing whether a first signal carries one TB or two TBs are used to determine whether the first signal occupies only one DMRS port subset or two DMRS port subsets of the first and second DMRS port subsets when the maximum value of M integers is equal to 2 according to one embodiment of the present application;

fig. 12 shows a schematic diagram of a DMRS port occupied by a first signal according to one embodiment of the present application;

fig. 13 shows a schematic diagram of a DMRS port occupied by a first signal according to one embodiment of the present application;

fig. 14 shows a schematic diagram of a DMRS port occupied by a first signal according to one embodiment of the present application;

FIG. 15 shows a schematic diagram of a first information block according to one embodiment of the present application;

fig. 16 shows a block diagram of a processing arrangement for use in a first node device according to an embodiment of the present application;

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

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of a first signaling and M signals according to one embodiment of the present application, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In particular, the order of steps in the blocks does not represent a particular chronological relationship between the individual steps.

In embodiment 1, the first node in the present application receives a first signaling in step 101, where the first signaling includes scheduling information of M signals, where M is a positive integer greater than 1; the M signals are received in step 102. Wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

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

As an embodiment, the first signaling comprises dynamic signaling.

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

As an embodiment, the first signaling includes DCI (Downlink Control Information ).

Typically, the first signaling is a DCI.

As an embodiment, the first signaling includes DCI for a downlink Grant (DL Grant).

As an embodiment, the first signaling includes scheduling DCI for the M signals.

As an embodiment, the first signaling is a scheduling DCI for the M signals.

As an embodiment, the value of the first higher layer parameter configured by the first node is equal to 2, and the first higher layer parameter is an RRC parameter, and the name of the first higher layer parameter includes "maxNrofCodeWords".

As an embodiment, the value of the first higher layer parameter configured by the first node is equal to n2, and the first higher layer parameter is an RRC parameter, and the name of the first higher layer parameter includes "maxNrofCodeWords".

As one embodiment, the first higher layer parameter is "maxnrofcodewordsschedule bydci".

As an embodiment, the M signals respectively include baseband signals.

As one embodiment, the M signals respectively include wireless signals.

As an embodiment, the M signals respectively include radio frequency signals.

As an embodiment, any one of the M signals includes a DMRS.

Typically, the M signals occupy M PDSCH respectively.

As an embodiment, said M is a positive integer not greater than 8.

As one example, the M is a positive integer no greater than 64.

As an embodiment, the TB refers to: transport Block, transport Block.

As an embodiment, one TB corresponds to one codeword (codewird).

As an embodiment, one TB includes a plurality of bits.

As an embodiment, the first given signal and the second given signal are any two signals of the M signals, and any TB carried by the first given signal is different from any TB carried by the second given signal.

As an embodiment, there is one signal of the M signals carrying only one TB.

As an embodiment, there is one signal out of the M signals carrying two TBs.

As an embodiment, the number of TBs carried by two signals in the M signals is not equal.

Typically, there are two signals carrying different numbers of TBs in the M signals.

As an embodiment, the number of TBs carried by any two of the M signals is equal.

Typically, the M signals correspond to M different HARQ (Hybrid Automatic Repeat reQuest ) process numbers (process numbers), respectively.

As an embodiment, the maximum value of the number of TBs comprised by any of the M signals is equal to 2.

As an embodiment, any two signals of the M signals occupy the same frequency domain resource.

As an embodiment, two signals in the M signals occupy time domain resources with the same length.

As an embodiment, two signals in the M signals occupy time domain resources with different lengths.

As an embodiment, any two signals in the M signals correspond to the same one or two TCI (Transmission Configuration Indicator, transmission configuration identifier) states (states).

As an embodiment, the given signal is any one of the M signals, and when the given signal carries two TBs, the two TBs occupy overlapping time-frequency resources.

As a typical sub-embodiment of the above embodiment, the two TBs occupy time-frequency resources that overlap completely.

As a sub-embodiment of the above embodiment, the two TBs occupy partially overlapping time-frequency resources.

As an embodiment, the first signaling includes a second domain and a fourth domain, the second domain occurring before the fourth domain in the first signaling; the MCS of any TB carried by any one of the M signals is indicated by one of the second domain in the first signaling and the fourth domain in the first signaling; a given signal is any one of the M signals, and when the MCS of one TB carried by the given signal is indicated by the second field in the first signaling, the one TB is referred to as a first TB carried by the given signal; when the MCS of the one TB is indicated by the fourth field in the first signaling, the one TB is referred to as a second TB carried by the given signal.

As a sub-embodiment of the above embodiment, the second field in the first signaling is used to determine whether the given signal carries the first TB, and the fourth field in the first signaling is used to determine whether the given signal carries the second TB.

As a sub-embodiment of the above embodiment, when the given signal carries the first TB, the second field in the first signaling indicates an MCS of the first TB; the fourth field in the first signaling indicates an MCS for the second TB when the given signal carries the second TB.

As an embodiment, the MCS of one TB refers to the MCS of a signal carrying the one TB.

As an embodiment, the MCS of one TB refers to the MCS of the sub-signal carrying the one TB.

As an embodiment, the given signal is any one of the M signals, and if the given signal carries only one TB, the one TB corresponds to codeword (coded) 0; if the given signal carries two TBs, a first one of the two TBs corresponds to codeword 0 and a second one of the two TBs corresponds to codeword 1.

As an embodiment, a given signal is any one of the M signals, and if the given signal carries only one TB, the one TB corresponds to codeword 0 or codeword 1; if the given signal carries two TBs, a first one of the two TBs corresponds to codeword 0 and a second one of the two TBs corresponds to codeword 1.

As an embodiment, the given signal is any one of the M signals, a first TB carried by the given signal corresponds to codeword 0, and a second TB carried by the given signal corresponds to codeword 1.

As an embodiment, a given signal is any one of the M signals, if the given signal carries only one TB, the one TB is the first TB carried by the given signal or the second TB carried by the given signal.

As an embodiment, a given signal is any one of the M signals, and if the given signal carries only one TB, the one TB is always the first TB carried by the given signal.

As an embodiment, there is one signal of the M signals carrying only the first TB.

As an embodiment, there is one signal of the M signals carrying only the second TB.

As an embodiment, there is one signal of the M signals carrying a first TB and a second TB.

As one embodiment, the scheduling information of the M signals includes scheduling information of at least one signal of the M signals.

As one embodiment, the scheduling information of the M signals includes scheduling information of any one of the M signals.

As an embodiment, the scheduling information includes one or more of time domain resources, frequency domain resources, MCS (Modulation and Coding Scheme, modulation coding scheme), DMRS port (port), HARQ process number, RV (Redundancy Version ), NDI (New Data Indicator, new data indication) or TCI status.

As an embodiment, the first signaling indicates the scheduling information of a part of the M signals, and implicitly indicates the scheduling information of another part of the M signals.

As an embodiment, the first signaling indicates a part of the scheduling information of the M signals, and implicitly indicates another part of the scheduling information of the M signals.

As an embodiment, the first signaling indicates a time-frequency resource occupied by each of the M signals.

As an embodiment, the first signaling indicates a HARQ process number for each of the M signals.

As an embodiment, the first signaling indicates the HARQ process number of a first signal of the M signals, and the first signaling implicitly indicates the HARQ process number of any signal of the M signals except for the first signal.

As one embodiment, the first signaling indicates MCS, NDI and RV of each of the M signals.

As an embodiment, the first signaling indicates a DMRS port of each of the M signals.

As an embodiment, the DMRS port of the first signaling display that indicates a part of signals in the M signals implicitly indicates a DMRS port of another part of signals in the M signals.

As an embodiment, the first signaling indicates the M.

As an embodiment, any one of the M signals comprises one or two sub-signals; a given signal is any one of the M signals; when the given signal carries only one TB, the given signal includes only one sub-signal carrying the one TB; when the given signal carries two TBs, the given signal includes two sub-signals, which respectively carry the two TBs.

As a sub-embodiment of the above embodiment, the two sub-signals occupy completely overlapping time-frequency resources.

As a sub-embodiment of the above embodiment, the first signaling indicates MCS, NDI and RV of each of the two sub-signals.

As an embodiment, the meaning of a sentence that a signal carries a TB includes: the one signal includes an output after bits in the one TB are sequentially CRC (Cyclic Redundancy Check ) attached (Attachment), coded block segmented (Code Block Segmentation), coded block CRC attached, channel Coding (Channel Coding), rate Matching (Rate Matching), concatenation (Concatenation), scrambling (Scrambling), modulation (Modulation), layer Mapping (Layer Mapping), precoding (Precoding), virtual resource block Mapping (Mapping to Virtual Resource Blocks), virtual to physical resource block Mapping (Mapping from Virtual to Physical Resource Blocks), multicarrier symbol Generation (Generation), modulation and up-conversion (Modulation and Upconversion).

As an embodiment, the meaning of a sentence that a signal carries a TB includes: the one signal includes an output of bits in the one TB after CRC attachment, channel coding, rate matching, modulation, layer mapping, precoding, virtual resource block mapping, virtual to physical resource block mapping, multi-carrier symbol generation, modulation, and up-conversion in sequence.

As an embodiment, the meaning of a sentence that a signal carries a TB includes: the one TB is used to generate the one signal.

As an embodiment, the multi-carrier symbol comprises an OFDM (Orthogonal Frequency Division Multiplexing ) symbol.

As an embodiment, the multi-Carrier symbol includes an SC-FDMA (Single Carrier-Frequency Division Multiple Access, single Carrier frequency division multiple access) symbol.

As an embodiment, the M integers are M positive integers not greater than 2, respectively.

Typically, any one of the M integers is equal to 1 or 2.

As an embodiment, there is an integer equal to 2 among the M integers.

As an embodiment, one integer of the M integers is equal to 1.

As an embodiment, there are two integers of the M integers that are not equal.

As an embodiment, the maximum value of the M integers is equal to 1 or 2.

Typically, the maximum value of the M integers is not greater than 2.

As an embodiment, the maximum value of the M integers is greater than 2.

As an embodiment, the first signaling is used to determine the M integers.

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

As an embodiment, the first field includes one field in one DCI.

As an embodiment, the first field is a field in a DCI.

As an embodiment, the first field includes all or part of information in one field in one DCI.

As an embodiment, the first field includes all or part of the information in the "Antenna port(s)" field in the DCI.

As one embodiment, the first field is an "Antenna port(s)" field in DCI.

As an embodiment, the first field comprises a number of bits equal to 4,5 or 6.

As an embodiment, the number of bits comprised by the first field in the first signaling is independent of the maximum value of the M integers.

As an embodiment, the DMRS refers to: deModulation Reference Signals, demodulation reference signals.

As an embodiment, the DMRS port includes: an antenna port.

As an embodiment, the DMRS port occupied by any one of the M signals includes: an antenna port occupied by any one of the M signals.

As an embodiment, the DMRS port occupied by any one of the M signals includes: all DMRS ports occupied by any one of the M signals.

As an embodiment, the DMRS port occupied by any one of the M signals includes: all antenna ports occupied by any one of the M signals.

As an embodiment, the DMRS port occupied by any one of the M signals means: DMRS ports occupied by DMRS of any one of the M signals.

As an embodiment, the DMRS port occupied by any one of the M signals means: and an antenna port occupied by the DMRS of any one of the M signals.

As an embodiment, the number of DMRS ports occupied by any one of the M signals is a positive integer.

As an embodiment, the number of DMRS ports occupied by one signal out of the M signals is equal to 1.

As an embodiment, the number of DMRS ports occupied by one signal out of the M signals is greater than 1.

As an embodiment, any DMRS port occupied by any one of the M signals is a non-negative integer.

As one embodiment, any DMRS port occupied by any one of the M signals is a positive integer not less than 1000 and not more than 1007.

As one embodiment, any DMRS port occupied by any one of the M signals is a positive integer not less than 1000 and not more than 1011.

As an embodiment, any DMRS port in the first DMRS port set is a non-negative integer.

As an embodiment, any DMRS port in the first set of DMRS ports is a non-negative integer no greater than 7.

As an embodiment, any DMRS port in the first set of DMRS ports is a non-negative integer no greater than 11.

As an embodiment, any DMRS port in the first DMRS port set is a positive integer.

As one embodiment, any DMRS port in the first set of DMRS ports is a positive integer no less than 1000 and no greater than 1007.

As one embodiment, any DMRS port in the first set of DMRS ports is a positive integer no less than 1000 and no greater than 1011.

As an embodiment, the first DMRS port set includes only one DMRS port.

As an embodiment, the first DMRS port set includes a plurality of DMRS ports.

As an embodiment, the number of DMRS ports included in the first DMRS port set is a positive integer not greater than 8.

As an embodiment, the number of DMRS ports included in the first DMRS port set is a positive integer not greater than 12.

As an embodiment, the number of DMRS ports included in the first DMRS port set is not greater than a second higher layer parameter, and a name of the second higher layer parameter includes "maxmmo-Layers".

As a sub-embodiment of the above embodiment, the second higher layer parameters are configured for RRC signaling.

As a sub-embodiment of the above embodiment, the name of the second higher layer parameter includes "maxmmo-LayersDL".

As an embodiment, when the maximum value of the M integers is equal to 2, the number of DMRS ports included in the first DMRS port set is greater than 4; when the maximum value of the M integers is equal to 1, the number of DMRS ports included in the first DMRS port set is not greater than 4.

As an embodiment, when there is one signal carrying only one TB and another signal carrying two TBs in the M signals, the other signal occupies all DMRS ports in the first DMRS port set, and the one signal occupies only part of DMRS ports in the first DMRS port set.

As a sub-embodiment of the foregoing embodiment, the positions of the partial DMRS ports in the first DMRS port set occupied by the one signal in the first DMRS port set do not need dynamic signaling configuration.

As a sub-embodiment of the above embodiment, the positions of the partial DMRS ports in the first DMRS port set occupied by the one signal in the first DMRS port set are default.

As a sub-embodiment of the above embodiment, the positions of the partial DMRS ports in the first DMRS port set occupied by the one signal in the first DMRS port set are indicated by the first signaling.

Example 2

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

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) and future 5G systems. The network architecture 200 of LTE, LTE-a and future 5G systems is referred to as EPS (Evolved Packet System ) 200. The 5GNR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System ) 200 or some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, one UE241 in Sidelink (Sidelink) communication with the UE201, NG-RAN (next generation radio access network) 202,5GC (5G CoreNetwork)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and internet service 230. The 5GS/EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the 5GS/EPS200 provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services. The NG-RAN202 includes an NR (New Radio), node B (gNB) 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), TRP (transmit-receive point), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. 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 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 physical network device, a machine-type communication device, a land 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. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. The MME/AMF/SMF211 generally provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, internet, intranet, IMS (IP Multimedia Subsystem ) and Packet switching (Packet switching) services.

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

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

As one embodiment, the wireless link between the UE201 and the gNB203 is a cellular network link.

As an embodiment, the sender of the first signaling includes the gNB203.

As an embodiment, the receiver of the first signaling comprises the UE201.

As an embodiment, the senders of the M signals include the gNB203.

As an embodiment, the receivers of the M signals include the UE201.

As an embodiment, the sender of the first information block includes the gNB203.

As an embodiment, the receiver of the first information block comprises the UE201.

As one embodiment, the UE201 supports 52.6GHz to 71GHz spectrum communications.

As an embodiment, the UE201 supports one DCI scheduling multiple PDSCH.

As an embodiment, the UE201 supports one DCI scheduling multiple PUSCHs.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to one embodiment of the present application, as shown in fig. 3.

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 between a first communication node device (RSU in UE, gNB or V2X) and a second communication node device (RSU in gNB, 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, or between two UEs. 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 (PacketData 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 is generated in the PHY301, or the PHY351.

As an embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

As an embodiment, the M signals are generated in the PHY301, or the PHY351.

As an embodiment, the first information block is generated in the RRC sublayer 306.

Example 4

Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present 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 DL, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocations to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for HARQ operations, 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). The transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450, as well as constellation mapping 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 parallel streams. A transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., pilot) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to produce 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 parallel streams destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the 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 DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, 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. The controller/processor 459 is also responsible for error detection using Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocols to support HARQ operations.

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 function at the first communication device 410 described in DL, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations of the first communication device 410, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for HARQ operations, 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 then modulating the resulting parallel streams into multi-carrier/single-carrier symbol streams, which are 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. The controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the second communication device 450. Upper layer packets from the controller/processor 475 may be provided to the core network. The controller/processor 475 is also responsible for error detection using an ACK and/or 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 the first signaling; the M signals are received.

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 the first signaling; the M signals are received.

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 the first signaling; and transmitting the M signals.

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 the first signaling; and transmitting the M signals.

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

As an embodiment, the second node in the present application comprises the first communication device 410.

As an embodiment, at least one of the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467 is used for receiving the first signaling; { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476} is used to transmit the first signaling.

As an example, { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, at least one of the data sources 467} are used to receive the M signals; { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, at least one of the memories 476} is used to transmit the M signals.

As an embodiment, at least one of the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467 is used for receiving the first information block; { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476} is used for transmitting the first information block.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission according to one embodiment of the present application, as shown in fig. 5. In fig. 5, the second node U1 and the first node U2 are communication nodes transmitting over the air interface. In fig. 5, the steps in blocks F51 and F52, respectively, are optional.

For the second node U1, a first information block is sent in step S5101; transmitting a second information block in step S5102; transmitting a first signaling in step S511; m signals are transmitted in step S512.

For the first node U2, receiving a first information block in step S5201; receiving a second information block in step S5202; receiving a first signaling in step S521; m signals are received in step S522.

In embodiment 5, the M signals are orthogonal to each other in the time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling includes a first domain, the first domain in the first signaling and a maximum value in the M integers are used by the first node U2 together to determine a first DMRS port set, where a DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

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

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

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

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

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

As an embodiment, the second node U1 is a serving cell maintenance base station of the first node U2.

As an embodiment, the first signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used to carry physical layer signaling).

As an embodiment, the first signaling is transmitted on a PDCCH.

As an embodiment, the M signals are transmitted on a downlink physical layer data channel (i.e., a downlink channel that can be used to carry physical layer data).

As one embodiment, the M signals are transmitted on PDSCH.

As an embodiment, the M signals are transmitted on M PDSCH, respectively.

As an example, the steps in block F51 of fig. 5 exist; the first information block indicates a maximum value of the M.

As an embodiment, the first information block is transmitted on a downlink physical layer data channel (i.e. a downlink channel that can be used to carry physical layer data).

As one embodiment, the first information block is transmitted on PDSCH.

As an example, the steps in block F52 of fig. 5 exist; the method in the first node used for wireless communication includes: receiving a second information block; wherein the second information block indicates the first higher layer parameter.

As an embodiment, the second information block indicates that the value of the first higher layer parameter is equal to 2.

As an embodiment, the second information block is carried by higher layer (higher layer) signaling.

As an embodiment, the second information block is carried by RRC signaling.

As an embodiment, the second information block is carried by MAC CE (Medium Access Control layer Control Element ) signaling.

As an embodiment, the second information block is carried by an IE (Information Element ).

As an embodiment, the name of the IE carrying the second information block includes "PDSCH-Config".

As one embodiment, the second information block is transmitted on PDSCH.

As an embodiment, the second information block is earlier than the first information block.

As an embodiment, the second information block is later than the first information block.

Example 6

Embodiment 6 illustrates a schematic diagram of a first DMRS port set pool and a second DMRS port set pool, according to M integers, according to one embodiment of the present application; as shown in fig. 6. In embodiment 6, the first domain in the first signaling indicates the first DMRS port set from the target DMRS port set pool; the target DMRS port set pool is the first DMRS port set pool or the second DMRS port set pool, the maximum value of the M integers is used by the first node to determine the target DMRS port set pool from the first DMRS port set pool and the second DMRS port set pool; when the maximum value of the M integers is equal to 1, the target DMRS port set pool is the first DMRS port set pool; the target DMRS port set pool is the second DMRS port set pool when the maximum value of the M integers is equal to 2.

Typically, the number of DMRS ports included in any DMRS port set in the first DMRS port set pool is smaller than the number of DMRS ports included in any DMRS port set in the second DMRS port set pool.

As an embodiment, the number of DMRS port sets included in the first DMRS port set pool is not equal to the number of DMRS port sets included in the second DMRS port set pool.

As an embodiment, any one DMRS port set in the first DMRS port set pool is a subset of at least one DMRS port set in the second DMRS port set pool.

As an embodiment, one DMRS port included in one DMRS port set in the first DMRS port set pool does not belong to any DMRS port set in the second DMRS port set pool.

As an embodiment, the number of DMRS ports included in any DMRS port set in the first DMRS port set pool is not greater than 4; and the number of the DMRS ports included in any one DMRS port set in the second DMRS port set pool is more than 4 and not more than 8.

As an embodiment, the number of DMRS ports included in the two DMRS port sets in the first DMRS port set pool is not equal.

As an embodiment, the number of DMRS ports included in the two DMRS port sets in the first DMRS port set pool is equal.

As an embodiment, the number of DMRS ports included in the two DMRS port sets in the second DMRS port set pool is not equal.

As an embodiment, the number of DMRS ports included in the two DMRS port sets in the second DMRS port set pool is equal.

As an embodiment, the number of DMRS ports included in any two DMRS port sets in the second DMRS port set pool is not equal.

As an embodiment, any DMRS port set in the first DMRS port set pool includes at least one DMRS port, and any DMRS port set in the second DMRS port set pool includes at least one DMRS port.

As one embodiment, the first field in the first signaling indicates an index of the first DMRS port set in the target DMRS port set pool.

As an embodiment, the value of the first field in the first signaling is equal to the index of the first DMRS port set in the target DMRS port set pool.

As one embodiment, the index of the first DMRS port set in the target DMRS port set pool is a non-negative integer less than the number of DMRS port sets included in the target DMRS port set pool.

Example 7

Embodiment 7 illustrates a schematic diagram of a first signaling including a second domain, a third domain, a fourth domain, and a fifth domain according to one embodiment of the present application; as shown in fig. 7. In embodiment 7, at least one of the second domain in the first signaling and the fourth domain in the first signaling indicates MCSs of the M signals; the third domain in the first signaling comprises M bit groups, and the M bit groups in the third domain in the first signaling are in one-to-one correspondence with the M signals; the fifth domain in the first signaling comprises M bit groups, and the M bit groups in the fifth domain in the first signaling are in one-to-one correspondence with the M signals; the first signal is one of the M signals; the M groups of bits in the third domain in the first signaling and the second domain in the first signaling are used together by the first node to determine whether the first signal carries a first TB, and the M groups of bits in the fifth domain in the first signaling and the fourth domain in the first signaling are used together by the first node to determine whether the first signal carries a second TB.

As an embodiment, the second field, the third field, the fourth field and the fifth field each comprise at least one bit.

As an embodiment, the second field, the third field, the fourth field and the fifth field each include all or part of bits in one field of one DCI.

As an embodiment, the second domain, the third domain, the fourth domain and the fifth domain each include one domain in one DCI.

As an embodiment, the second field includes a "Modulation and coding scheme" field in one DCI.

Typically, the second field is a "Modulation and coding scheme" field in one DCI.

As an embodiment, the second field includes a "Modulation and coding scheme" field for the first TB in one DCI.

For one embodiment, the second field includes a preceding "Modulation and coding scheme" field of two "Modulation and coding scheme" fields in a DCI.

As an embodiment, the second field comprises a number of bits equal to 5.

As an embodiment, the third field includes a "Redundancy version" field in DCI.

Typically, the third field is the "Redundancy version" field in one DCI.

As an embodiment, the third field includes a "Redundancy version" field for the first TB in one DCI.

For one embodiment, the third field includes a preceding "Redundancy version" field of two "Redundancy version" fields in a DCI.

As an embodiment, the third field comprises a number of bits equal to 8.

As an embodiment, the third field includes a number of bits not smaller than M.

As an embodiment, the third field includes a number of bits equal to the maximum value of M.

As an embodiment, the fourth field includes a "Modulation and coding scheme" field in one DCI.

Typically, the fourth field is the "Modulation and coding scheme" field in one DCI.

As an embodiment, the fourth field includes a "Modulation and coding scheme" field for the second TB in one DCI.

For one embodiment, the fourth field includes two "Modulation and coding scheme" fields in a DCI appearing in a subsequent "Modulation and coding scheme" field.

Typically, the second and fourth fields are two "Modulation and coding scheme" fields in one DCI, respectively, the second field occurring before the fourth field.

As an embodiment, the fourth field comprises a number of bits equal to 5.

As an embodiment, the fifth field includes a "Redundancy version" field in one DCI.

Typically, the fifth field is the "Redundancy version" field in one DCI.

As an embodiment, the fifth field includes a "Redundancy version" field for the second TB in one DCI.

For one embodiment, the fifth field includes two "Redundancy version" fields in a DCI appearing in a subsequent "Redundancy version" field.

Typically, the third and fifth fields are two "Redundancy version" fields in the DCI, respectively, the third field occurring before the fifth field.

As an embodiment, the fifth field comprises a number of bits equal to 8.

As an embodiment, the fifth field includes a number of bits not smaller than M.

As an embodiment, the fifth field includes a number of bits equal to the maximum value of M.

Typically, the second domain is located before the fourth domain in the first signaling.

Typically, the third domain is located in the first signaling before the fifth domain.

As an embodiment, the second domain is located before the third domain in the first signaling.

As an embodiment, the fourth domain is located before the fifth domain in the first signaling.

As one embodiment, the given signal is any one of the M signals; when the given signal carries only one TB, one of the second domain in the first signaling or the fourth domain in the first signaling indicates an MCS of the given signal; when the given signal carries two TBs, the given signal includes two sub-signals carrying the two TBs, respectively, and the second field in the first signaling and the fourth field in the first signaling indicate MCSs of the two sub-signals, respectively.

As an embodiment, the second domain is located before the fourth domain in the first signaling; a given signal is any one of the M signals; when the MCS of one TB carried by the given signal is indicated by the second field in the first signaling, the one TB is referred to as a first TB carried by the given signal; when the MCS of the one TB is indicated by the fourth field in the first signaling, the one TB is referred to as a second TB carried by the given signal.

As one embodiment, the given signal is any one of the M signals; when the given signal carries only one TB, the MCS of the one TB is the MCS of the given signal; when the given signal carries two TBs, the given signal includes two sub-signals carrying the two TBs, respectively, and the MCS of any one of the two TBs is the MCS of the sub-signal carrying the any one of the two sub-signals.

As one embodiment, the given signal is any one of the M signals; when the given signal carries two TBs, the given signal includes two sub-signals carrying the two TBs, respectively, and the MCS of the given signal includes the MCS of each of the two sub-signals.

As an embodiment, any one of the M groups of bits in the third domain in the first signaling comprises at least one bit, and any one of the M groups of bits in the fifth domain in the first signaling comprises at least one bit.

As an embodiment, any two bit groups of the M bit groups in the third domain in the first signaling include an equal number of bits; any two of the M groups of bits in the fifth field in the first signaling include an equal number of bits.

As an embodiment, there are two bit groups among the M bit groups in the third domain in the first signaling that include unequal numbers of bits.

As an embodiment, there are two bit groups among the M bit groups in the fifth domain in the first signaling that include unequal numbers of bits.

Typically, any one of the M groups of bits in the third field in the first signaling includes a number of bits equal to 1.

Typically, any one of the M groups of bits in the fifth field in the first signaling includes a number of bits equal to 1.

As an embodiment, the number of bits included in the presence of one bit group among the M bit groups in the third domain in the first signaling is greater than 1.

As an embodiment, the number of bits included in the presence of one bit group among the M bit groups in the fifth domain in the first signaling is greater than 1.

As an embodiment, the number of bits included in any one of the M bit groups in the third domain in the first signaling is not equal to the number of bits included in any one of the M bit groups in the fifth domain in the first signaling.

Typically, the first signal is any one of the M signals.

As an embodiment, the first signal is a first signal of the M signals.

As an embodiment, the first signal is any signal other than the first signal among the M signals.

As an embodiment, the second field in the first signaling indicates an MCS of at least one of the M signals, and the fourth field in the first signaling indicates an MCS of at least one of the M signals.

As one embodiment, only the second field in the first signaling in both the second field in the first signaling and the fourth field in the first signaling indicates the MCS of the M signals.

As one embodiment, only the fourth field in the first signaling in both the second field in the first signaling and the fourth field in the first signaling indicates the MCS of the M signals.

Example 8

Embodiment 8 illustrates a schematic diagram in which first signaling is used to determine whether a first signal carries a first TB and a second TB according to one embodiment of the present application; as shown in fig. 8. In embodiment 8, when a value of a bit group corresponding to the first signal among the M bit groups in the third domain in the first signaling is equal to a second integer and a value of the second domain in the first signaling is equal to a first integer, the first signal does not carry the first TB; when the value of the bit group corresponding to the first signal in the M bit groups in the third domain in the first signaling is not equal to the second integer, the first signal carries the first TB; the first signal carries the first TB when the value of the second field in the first signaling is not equal to the first integer. When a value of a bit group corresponding to the first signal among the M bit groups in the fifth domain in the first signaling is equal to a fourth integer and a value of the fourth domain in the first signaling is equal to a third integer, the first signal does not carry the second TB; when the value of the bit group corresponding to the first signal in the M bit groups in the fifth domain in the first signaling is not equal to the fourth integer, the first signal carries the second TB; the first signal carries the second TB when the value of the fourth field in the first signaling is not equal to the third integer.

As an embodiment, the first signaling is used by the first node to determine whether the first signal carries the first TB, and the first signaling is used by the first node to determine whether the first signal carries the second TB.

Typically, only when the value of the second field in the first signaling is equal to a first integer, a bit group corresponding to the first signal among the M bit groups in the third field in the first signaling is used to determine whether the first signal carries the first TB; only when the value of the fourth field in the first signaling is equal to a third integer, a bit group corresponding to the first signal among the M bit groups in the fifth field in the first signaling is used to determine whether the first signal carries the second TB.

As an embodiment, the first integer and the second integer are each a non-negative integer.

As an embodiment, the first integer and the second integer are each default.

As an embodiment, the first integer and the second integer are each not configurable.

As an embodiment, the third integer and the fourth integer are each a non-negative integer.

As an embodiment, the third integer and the fourth integer are each default.

As an embodiment, the third integer and the fourth integer are each not necessarily configurable.

As an embodiment, the first integer is equal to the third integer; the second integer is equal to the fourth integer.

As an embodiment, the first integer is not equal to the third integer.

As an embodiment, the second integer is not equal to the fourth integer.

As one embodiment, the first integer is a non-negative integer of no more than 32.

As one embodiment, the second integer is a non-negative integer not greater than 1.

As one embodiment, the third integer is a non-negative integer of no more than 32.

As one embodiment, the fourth integer is a non-negative integer not greater than 1.

As an embodiment, the first integer is equal to 26.

As an embodiment, both the first integer and the third integer are equal to 26.

As an embodiment, the second integer is equal to 1.

As an embodiment, both the second integer and the fourth integer are equal to 1.

As an embodiment, the second integer is equal to 1 and the fourth integer is equal to 0.

Typically, when the first signal carries the first TB, the second field in the first signaling indicates the MCS of the first TB carried by the first signal.

As an embodiment, when the first signal carries the first TB, the value of the second field in the first signaling is equal to the MCS index of the first TB carried by the first signal.

Typically, when the first signal carries the second TB, the fourth field in the first signaling indicates the MCS of the second TB carried by the first signal.

As an embodiment, when the first signal carries the second TB, the value of the fourth field in the first signaling is equal to the MCS index of the second TB carried by the first signal.

Typically, at least one of the third domain in the first signaling and the fifth domain in the first signaling indicates RVs of the M signals.

As an embodiment, the third field in the first signaling indicates an RV of at least one of the M signals, and the fifth field in the first signaling indicates an RV of at least one of the M signals.

As one embodiment, only the third field in the first signaling in both the third field in the first signaling and the fifth field in the first signaling indicates RVs of the M signals.

As one embodiment, only the fifth field in the first signaling in both the third field in the first signaling and the fifth field in the first signaling indicates RVs of the M signals.

As one embodiment, the given signal is any one of the M signals; when the given signal carries two TBs, the given signal includes two sub-signals carrying the two TBs, respectively, and the RV of the given signal includes the RV of each of the two sub-signals.

As one embodiment, the given signal is any one of the M signals; when the given signal carries only one TB, the third field in the first signaling or the fifth field in the first signaling indicates an RV of the given signal; when the given signal carries two TBs, the given signal includes two sub-signals carrying the two TBs, respectively, and the third field in the first signaling and the fifth field in the first signaling indicate RVs of the two sub-signals, respectively.

Typically, when the first signal carries the first TB, a bit group corresponding to the first signal among the M bit groups in the third domain in the first signaling indicates an RV of the first TB carried by the first signal.

Typically, when the first signal carries the second TB, a bit group corresponding to the first signal among the M bit groups in the fifth domain in the first signaling indicates an RV of the second TB carried by the first signal.

As an embodiment, the first TB carried by the first signal corresponds to codeword 0 (coded 0), and the second TB carried by the first signal corresponds to codeword 1 (coded 1).

As an embodiment, if the first signal carries the first TB, the first TB occupies the first DMRS port set; and if the first signal carries the second TB, the second TB occupies the second DMRS port set.

Example 9

Embodiment 9 illustrates a schematic diagram of a first signaling including a sixth domain and a seventh domain according to one embodiment of the present application; as shown in fig. 9. In embodiment 9, NDI corresponding to any TB carried by any one of the M signals is indicated by the sixth field in the first signaling or by the seventh field in the first signaling.

As one embodiment, the sixth field in the first signaling includes M bits, and the M bits in the sixth field in the first signaling correspond to the M signals one to one; the seventh field in the first signaling includes M bits, the M bits in the seventh field in the first signaling corresponding one-to-one to the M signals; when the first signal carries the first TB, a bit corresponding to the first signal among the M bits in the sixth domain in the first signaling indicates whether the first signal includes an initial transmission or a retransmission of the first TB; when the first signal carries the second TB, a bit corresponding to the first signal among the M bits in the seventh field in the first signaling indicates whether the first signal includes an initial transmission or a retransmission of the second TB.

As an embodiment, the sixth field and the seventh field each comprise at least one bit.

As an embodiment, the sixth and seventh fields include all or part of bits in one field of one DCI, respectively.

As an embodiment, the sixth and seventh fields include one field in one DCI, respectively.

As an embodiment, the sixth field includes a "New data indicator" field in one DCI.

As an embodiment, the seventh field includes a "New data indicator" field in DCI.

As an embodiment, the sixth field includes a "New data indicator" field for the first TB in one DCI; the seventh field includes a "New data indicator" field for the second TB in DCI.

As an embodiment, the sixth and seventh fields respectively include two "New data indicator" fields in DCI, the sixth field appearing before the seventh field.

As an embodiment, the first signaling includes the first domain, the second domain, the third domain, the fourth domain, the fifth domain, the sixth domain, and the seventh domain.

Typically, at least one of the sixth domain in the first signaling and the seventh domain in the first signaling indicates NDI of the M signals.

As an embodiment, the sixth field in the first signaling indicates NDI of at least one of the M signals, and the seventh field in the first signaling indicates NDI of at least one of the M signals.

As one embodiment, only the sixth field in the first signaling in both the sixth field in the first signaling and the seventh field in the first signaling indicates NDI of the M signals.

As one embodiment, only the seventh field in the first signaling in both the sixth field in the first signaling and the seventh field in the first signaling indicates DNI of the M signals.

Example 10

Embodiment 10 illustrates a schematic diagram of M signals according to one embodiment of the present application; as shown in fig. 10. In embodiment 10, the M signals include a first signal subset, a second signal subset, and a third signal subset; the first signal subgroup consists of all signals carrying only a first TB in the M signals, the second signal subgroup consists of all signals carrying only a second TB in the M signals, and the third signal subgroup consists of all signals carrying both the first TB and the second TB in the M signals; any signal in the first signal subgroup only comprises one sub-signal carrying a first TB, any signal in the second signal subgroup only comprises one sub-signal carrying a second TB, and any signal in the third signal subgroup comprises 2 sub-signals carrying the first TB and the second TB respectively; the first set of sub-signals consists of all sub-signals in the first signal subgroup and all sub-signals carrying the first TB in the third signal subgroup, and the first set of sub-signals consists of all sub-signals in the second signal subgroup and all sub-signals carrying the second TB in the third signal subgroup. In fig. 10, the M signals are denoted as signal #0,..the signal # x,..the signal # (M-1); wherein x is any positive integer less than (M-1).

As an embodiment, one of the first signal subgroup, the second signal subgroup and the third signal subgroup is an empty set.

As an embodiment, the first signal subgroup is an empty set.

As an embodiment, the second signal subgroup is an empty set.

As an embodiment, the third signal subgroup is an empty set.

As an embodiment, there is one signal subgroup in the first signal subgroup, the second signal subgroup and the third signal subgroup that is not an empty set.

As an embodiment, neither the first signal subgroup nor the second signal subgroup nor the third signal subgroup is an empty set.

As an embodiment, one of the first and second sets of sub-signals is an empty set.

As an embodiment, the first set of sub-signals is an empty set.

As an embodiment, the second set of sub-signals is an empty set.

As an embodiment, one of the first set of sub-signals and the second set of sub-signals is not an empty set.

As an embodiment, neither the first set of sub-signals nor the second set of sub-signals is an empty set.

As an embodiment, all the sub-signals in the first set of sub-signals use the same MCS.

As one embodiment, the second field in the first signaling indicates an MCS for each of the first set of sub-signals when the first set of sub-signals is not an empty set.

As a sub-embodiment of the above embodiment, the second field in the first signaling indicates a first MCS, and the MCS adopted by each sub-signal in the first sub-signal set is the first MCS.

As an embodiment, all sub-signals in the second set of sub-signals use the same MCS.

As one embodiment, the fourth field in the first signaling indicates an MCS for each of the second set of sub-signals when the second set of sub-signals is not an empty set.

As a sub-embodiment of the above embodiment, the fourth field in the first signaling indicates a second MCS, and the MCS adopted by each sub-signal in the second sub-signal set is the second MCS.

As one embodiment, when the first set of sub-signals is not an empty set, the third field in the first signaling indicates an RV of each sub-signal in the first set of sub-signals; the fifth field in the first signaling indicates an RV of each sub-signal in the second set of sub-signals when the second set of sub-signals is not an empty set.

As an embodiment, when the first set of sub-signals is not an empty set, the sixth field in the first signaling indicates NDI for each sub-signal in the first set of sub-signals; the seventh field in the first signaling indicates NDI for each sub-signal in the second set of sub-signals when the second set of sub-signals is not an empty set.

As an embodiment, the first given sub-signal is any one of the first set of sub-signals, the first given signal belonging to a first given signal of the M signals; the bit group corresponding to the first given signal among the M bit groups in the third domain in the first signaling indicates an RV of the first given sub-signal, and the bit corresponding to the first given signal among the M bits in the sixth domain in the first signaling indicates an NDI of the first given sub-signal.

As an embodiment, the second given sub-signal is any one of the second set of sub-signals, the second given sub-signal belonging to a second given signal of the M signals; the bit group corresponding to the second given signal among the M bit groups in the fifth domain in the first signaling indicates an RV of the second given sub-signal, and the bit corresponding to the second given signal among the M bits in the seventh domain in the first signaling indicates an NDI of the second given sub-signal.

As an embodiment, all the sub-signals in the first set of sub-signals occupy the same DMRS port; all the sub-signals in the second set of sub-signals occupy the same DMRS port.

As an embodiment, the DMRS ports of the first signaling that indicate signal occupation in the third signal subgroup are displayed, and the DMRS ports of the first signal subgroup and the second signal subgroup are implicitly indicated by the first signaling.

As an embodiment, all sub-signals in the first set of sub-signals have the same layer (layer) number; all the sub-signals in the second set of sub-signals have the same layer number.

As an embodiment, the number of layers of any one sub-signal is not greater than 4.

As an embodiment, for any signal in the third signal subset, the two sub-signals comprised by said any signal are mapped to different layers.

Example 11

Embodiment 11 illustrates a schematic diagram of determining whether a first signal carries one TB or two TBs are used to occupy only one DMRS port subset or two DMRS port subsets of a first DMRS port subset and a second DMRS port subset when the maximum value of M integers is equal to 2 according to one embodiment of the present application; as shown in fig. 11. In embodiment 11, when the maximum value of the M integers is equal to 2, the first DMRS port set includes the first DMRS port subset and the second DMRS port subset; the first signal is one of the M signals; whether the first signal carries one TB or two TBs is used by the first node to determine whether the first signal occupies only one or two DMRS port subsets of the first and second DMRS port subsets; when the first signal carries only one TB, the first signal occupies only one DMRS port subset of both the first and second DMRS port subsets; when the first signal carries two TBs, the first signal occupies the first subset of DMRS ports and the second subset of DMRS ports.

Typically, the first signal is any one of the M signals.

Typically, when the first signal carries only one TB, the first signal occupies all DMRS ports in only one DMRS port subset of both the first and second DMRS port subsets; when the first signal carries two TBs, the first signal occupies all DMRS ports in the first DMRS port subset and all DMRS ports in the second DMRS port subset.

Typically, when the first signal carries two TBs, the first signal includes a first sub-signal carrying a first one of the two TBs and a second sub-signal carrying a second one of the two TBs; the first sub-signal occupies the first subset of DMRS ports and the second sub-signal occupies the second subset of DMRS ports.

As a sub-embodiment of the above embodiment, the first sub-signal occupies all DMRS ports in the first DMRS port subset, and the second sub-signal occupies all DMRS ports in the second DMRS port subset.

As a sub-embodiment of the above embodiment, the first sub-signal does not occupy a DMRS port in the second DMRS port subset, and the second sub-signal does not occupy a DMRS port in the first DMRS port subset.

As an embodiment, any DMRS port in the first set of DMRS ports belongs to the first subset of DMRS ports or the second subset of DMRS ports.

As an embodiment, there is no one DMRS port in the first set of DMRS ports and belongs to the first subset of DMRS ports or the second subset of DMRS ports.

As an embodiment, all DMRS ports included in the first DMRS port set are sequentially arranged in the first DMRS port set in order from small to large.

As an embodiment, the first DMRS port set includes a number of DMRS ports equal to K; when the maximum value of the M integers is equal to 2, K is a positive integer greater than 1; the first subset of DMRS ports includes a number of DMRS ports equal to K1, and the second subset of DMRS ports includes a number of DMRS ports equal to K2, the sum of K1 and K2 being equal to the K.

As a typical sub-embodiment of the above embodiment, when said K is even, said K1 and said K2 are both equal to said K divided by 2.

As a typical sub-embodiment of the above embodiment, when the K is odd, the K1 is equal to the K divided by 2 and rounded down, and the K2 is equal to the K divided by 2 and rounded up.

As a sub-embodiment of the above embodiment, when the K is an odd number, the K1 is equal to the K divided by 2 and rounded up, and the K2 is equal to the K divided by 2 and rounded down.

As a sub-embodiment of the above embodiment, the maximum value of the M integers is equal to 2, and the K is greater than 4.

As a typical sub-embodiment of the above embodiment, the first subset of DMRS ports includes the first K1 DMRS ports in the first set of DMRS ports, and the second subset of DMRS ports includes the last K2 DMRS ports in the first set of DMRS ports.

As a typical sub-embodiment of the above embodiment, the first DMRS port subset includes K1 smallest DMRS ports in the first DMRS port set, and the second DMRS port subset includes K2 largest DMRS ports in the first DMRS port set.

Typically, the first DMRS port subset corresponds to codeword 0 and the second DMRS port subset corresponds to codeword 1.

As one embodiment, codeword 0 is mapped to the first DMRS port subset and codeword 1 is mapped to the second DMRS port subset.

As an embodiment, the modulation symbol sequence generated by codeword 0 is mapped to the first DMRS port subset, and the modulation symbol sequence generated by codeword 1 is mapped to the second DMRS port subset.

As an embodiment, when the maximum value of the M integers is equal to 2, there is one of the M signals occupying only the first DMRS port subset of the first DMRS port subset and the second DMRS port subset.

As an embodiment, when the maximum value of the M integers is equal to 2, there is one of the M signals occupying only the second subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports.

As an embodiment, when the maximum value of the M integers is equal to 2, there is one signal of the M signals occupying the first DMRS port subset and the second DMRS port subset.

As an embodiment, when the maximum value of the M integers is equal to 1, any one of the M signals occupies all DMRS ports in the first set of DMRS ports.

Example 12

Embodiment 12 illustrates a schematic diagram of a DMRS port occupied by a first signal according to an embodiment of the present application; as shown in fig. 12. In embodiment 12, the first signaling includes the second domain and the fourth domain, at least one of the second domain in the first signaling and the fourth domain in the first signaling indicating MCSs of the M signals; when the first signal carries only the first target TB, whether the first signal occupies the first subset of DMRS ports or whether the second subset of DMRS ports is related to whether the MCS of the first target TB is indicated by the second field in the first signaling or by the fourth field in the first signaling; when the first signal carries only the first target TB and an MCS of the first target TB is indicated by the second field in the first signaling, the first signal occupies the first subset of DMRS ports; the first signal occupies the second subset of DMRS ports when the first signal carries only the first target TB and an MCS of the first target TB is indicated by the fourth field in the first signaling.

As an embodiment, when the first signal carries only the first target TB, the first signal occupies the first subset of DMRS ports or the second subset of DMRS ports is related to whether the first target TB is the first TB or the second TB carried by the first signal.

As an embodiment, when the first signal carries only the first target TB, the MCS of the first target TB is indicated by the second field in the first signaling or the fourth field in the first signaling is used to determine whether the first signal occupies the first DMRS port subset or the second DMRS port subset

As an embodiment, when the first signal carries only the first target TB and the MCS of the first target TB is indicated by the second field in the first signaling, the first signal occupies all DMRS ports in the first subset of DMRS ports; when the first signal carries only the first target TB and the MCS of the first target TB is indicated by the fourth field in the first signaling, the first signal occupies all DMRS ports in the second subset of DMRS ports.

As an embodiment, when the first signal carries only the first target TB and the MCS of the first target TB is indicated by the second field in the first signaling, the first signal does not occupy a DMRS port in the second subset of DMRS ports; when the first signal carries only the first target TB and the MCS of the first target TB is indicated by the fourth field in the first signaling, the first signal does not occupy a DMRS port in the first subset of DMRS ports.

As an embodiment, when the first signal carries only the first target TB and the MCS of the first target TB is indicated by the second field in the first signaling, the first target TB corresponds to codeword 0; when the first signal carries only the first target TB and the MCS of the first target TB is indicated by the fourth field in the first signaling, the first target TB corresponds to codeword 1.

As an embodiment, when the first signal carries only the first target TB and the first target TB is the first TB carried by the first signal, the first signal occupies the first subset of DMRS ports; when the first signal carries only the first target TB and the first target TB is the second TB carried by the first signal, the first signal occupies the second subset of DMRS ports.

As an embodiment, the first target TB is the first TB carried by the first signal.

As an embodiment, the first target TB is the second TB carried by the first signal.

As an embodiment, when the MCS of the first target TB is indicated by the second field in the first signaling, the first target TB is the first TB carried by the first signal; when the MCS of the first target TB is indicated by the fourth field in the first signaling, the first target TB is the second TB carried by the first signal.

As an embodiment, when the first signal carries a second target TB in addition to the first target TB, the first signal occupies the first subset of DMRS ports and the second subset of DMRS ports.

As a sub-embodiment of the above embodiment, the first signal includes a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal carrying the first target TB and the second target TB, respectively; the MCS of the first sub-signal is indicated by the second field in the first signaling, and the MCS of the second sub-signal is indicated by the fourth field in the first signaling; the first sub-signal occupies the first subset of DMRS ports and the second sub-signal occupies the second subset of DMRS ports.

Example 13

Embodiment 13 illustrates a schematic diagram of a DMRS port occupied by a first signal according to an embodiment of the present application; as shown in fig. 13. In embodiment 13, when the first signal carries only a first target TB, the first signal always occupies the first subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports.

As an embodiment, when the first signal carries only the first target TB, the first signal occupies only the first subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports.

As a sub-embodiment of the above embodiment, the first signal occupies all DMRS ports in the first subset of DMRS ports.

As an embodiment, when the first signal carries only the first target TB, the first signal does not occupy the second subset of DMRS ports.

As an embodiment, when the first signal carries only the first target TB, the first signal always occupies only the first DMRS port subset of the first and second DMRS port subsets, regardless of whether the first target TB is the first TB or the second TB carried by the first signal.

As an embodiment, when the first signal carries only the first target TB, the first signal always occupies only the first subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports, whether an MCS of the first target TB is indicated by the second field in the first signaling or by the fourth field in the first signaling.

As an embodiment, when the first signal carries only the first target TB, the first target TB always corresponds to codeword 0.

Example 14

Embodiment 14 illustrates a schematic diagram of a DMRS port occupied by a first signal according to an embodiment of the present application; as shown in fig. 14. In embodiment 14, when the first signal carries only the first target TB, the first signal always occupies the first subset of DMRS ports and the second subset of DMRS ports.

As an embodiment, when the first signal carries only the first target TB, the first signal always occupies only the second subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports, regardless of whether the first target TB is the first TB or the second TB carried by the first signal.

As an embodiment, when the first signal carries only the first target TB, the first target TB always corresponds to codeword 1.

Example 15

Embodiment 15 illustrates a schematic diagram of a first information block according to one embodiment of the present application; as shown in fig. 15. In embodiment 15, the first information block indicates a maximum value of the M.

As an embodiment, the first information block is carried by higher layer (higher layer) signaling.

As an embodiment, the first information block is carried by RRC signaling.

As an embodiment, the first information block is carried by MAC CE signaling.

As an embodiment, the first information block is carried by an IE (Information Element ).

As an embodiment, the name of the IE carrying the first information block includes "PDSCH-Config".

As an embodiment, the name of the IE carrying the first information block includes "timedomainresourceaallocationlist".

As an embodiment, the first information block is carried by PDSCH-TimeDomainResourceAllocationList IE.

As an embodiment, the first information block includes information in a given field in a first IE, where a name of the first IE includes "PDSCH-Config", and a name of the given field includes "timedomainalllocalist".

As a sub-embodiment of the above embodiment, the name of the given domain includes "pdsch-timedomainalllocation list".

As one embodiment, the M is not greater than the maximum value of the M.

As an embodiment, said M is equal to said maximum value of said M.

As an embodiment, said M is smaller than said maximum value of said M.

As an embodiment, said maximum value of M is not greater than 8.

As an embodiment, said maximum value of M is not greater than 64.

As an embodiment, the first information block displays the maximum value indicative of the M.

As an embodiment, the first information block comprises a first information sub-block, the value of the first information sub-block indicating the maximum value of the M.

As an embodiment, the first information block implicitly indicates the maximum value of the M.

As an embodiment, the first information block indirectly indicates the maximum value of M by indicating other information.

As an embodiment, the first information block indicates a first TDRA (Time Domain Resource Assignment) list, the first TDRA list comprising a plurality of entries, any one of the plurality of entries comprising a time domain resource configuration of one or more PDSCH; a first entry of the plurality of entries includes a time domain resource configuration of P PDSCH, P being a positive integer greater than 1; any one of the plurality of entries includes a time domain resource configuration of no more than P PDSCH; the maximum value of M is equal to P.

As a sub-embodiment of the above embodiment, the time domain resource configuration includes one or more of a SLIV (Start and length indicator value, start and length indication value), a mapping type, or a slot offset.

As a sub-embodiment of the above embodiment, the time domain resource configuration includes one or more of a SLIV, a mapping type, a slot offset, or a number of repetitions.

Example 16

Embodiment 16 illustrates a block diagram of a processing apparatus for use in a first node device according to one embodiment of the present application; as shown in fig. 16. In fig. 16, the processing means 1600 in the first node device comprises a first receiver 1601.

In embodiment 16, the first receiver 1601 receives a first signaling and M signals.

In embodiment 16, the first signaling includes scheduling information of the M signals, M being a positive integer greater than 1; the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

As one embodiment, the first domain in the first signaling indicates the first DMRS port set from a target DMRS port set pool; the target DMRS port set pool is a first DMRS port set pool or a second DMRS port set pool, the maximum value of the M integers is used to determine the target DMRS port set pool from the first DMRS port set pool and the second DMRS port set pool; the first DMRS port set pool and the second DMRS port set pool each include a plurality of DMRS port sets.

As one embodiment, the first signaling includes a second domain, a third domain, a fourth domain, and a fifth domain; at least one of the second domain in the first signaling and the fourth domain in the first signaling indicates MCSs of the M signals; the third domain in the first signaling comprises M bit groups, and the M bit groups in the third domain in the first signaling are in one-to-one correspondence with the M signals; the fifth domain in the first signaling comprises M bit groups, and the M bit groups in the fifth domain in the first signaling are in one-to-one correspondence with the M signals; the first signal is one of the M signals; the M groups of bits in the third field of the first signaling and the second field of the first signaling are used together to determine whether the first signal carries a first TB, and the M groups of bits in the fifth field of the first signaling and the fourth field of the first signaling are used together to determine whether the first signal carries a second TB.

As one embodiment, when the maximum value of the M integers is equal to 2, the first DMRS port set includes a first DMRS port subset and a second DMRS port subset; the first signal is one of the M signals; whether the first signal carries one TB or two TBs is used to determine whether the first signal occupies only one or two of the first and second DMRS port subsets.

As one embodiment, the first signaling includes a second domain and a fourth domain, at least one of the second domain in the first signaling and the fourth domain in the first signaling indicating MCSs of the M signals; when the first signal carries only a first target TB, whether the first signal occupies the first subset of DMRS ports or whether the second subset of DMRS ports is related to whether an MCS of the first target TB is indicated by the second field in the first signaling or by the fourth field in the first signaling.

As an embodiment, when the first signal carries only a first target TB, the first signal always occupies the first subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports.

For one embodiment, the first receiver 1601 receives a first block of information; wherein the first information block indicates a maximum value of the M.

As an embodiment, the first signaling is a DCI, and the M integers are M positive integers not greater than 2, respectively; the second domain is located before the fourth domain in the first signaling; any one of the M groups of bits in the third domain in the first signaling includes a number of bits equal to 1, and any one of the M groups of bits in the fifth domain in the first signaling includes a number of bits equal to 1; the first signal is any one of the M signals.

As an embodiment, the M groups of bits in the third field in the first signaling and the second field in the first signaling are used together to determine whether the first signal carries a first TB, and the M groups of bits in the fifth field in the first signaling and the fourth field in the first signaling are used together to determine whether the first signal carries a second TB; when the maximum value of the M integers is equal to 2, if the first signal includes the first TB and the second TB, the first signal occupies the first DMRS port set; if the first signal includes only one of the first TB and the second TB, the first signal occupies only one of the first subset of DMRS ports and the second subset of DMRS ports.

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

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

As an example, the first receiver 1601 includes at least one of { antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller/processor 459, memory 460, data source 467} in example 4.

Example 17

Embodiment 17 illustrates a block diagram of a processing apparatus for use in a second node device according to one embodiment of the present application; as shown in fig. 17. In fig. 17, the processing means 1700 in the second node device comprises a first transmitter 1701.

In embodiment 17, the first transmitter 1701 transmits the first signaling and the M signals.

In embodiment 17, the first signaling includes scheduling information of the M signals, M being a positive integer greater than 1; the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

As one embodiment, the first domain in the first signaling indicates the first DMRS port set from a target DMRS port set pool; the target DMRS port set pool is a first DMRS port set pool or a second DMRS port set pool, the maximum value of the M integers is used to determine the target DMRS port set pool from the first DMRS port set pool and the second DMRS port set pool; the first DMRS port set pool and the second DMRS port set pool each include a plurality of DMRS port sets.

As one embodiment, the first signaling includes a second domain, a third domain, a fourth domain, and a fifth domain; at least one of the second domain in the first signaling and the fourth domain in the first signaling indicates MCSs of the M signals; the third domain in the first signaling comprises M bit groups, and the M bit groups in the third domain in the first signaling are in one-to-one correspondence with the M signals; the fifth domain in the first signaling comprises M bit groups, and the M bit groups in the fifth domain in the first signaling are in one-to-one correspondence with the M signals; the first signal is one of the M signals; the M groups of bits in the third field of the first signaling and the second field of the first signaling are used together to determine whether the first signal carries a first TB, and the M groups of bits in the fifth field of the first signaling and the fourth field of the first signaling are used together to determine whether the first signal carries a second TB.

As one embodiment, when the maximum value of the M integers is equal to 2, the first DMRS port set includes a first DMRS port subset and a second DMRS port subset; the first signal is one of the M signals; whether the first signal carries one TB or two TBs is used to determine whether the first signal occupies only one or two of the first and second DMRS port subsets.

As one embodiment, the first signaling includes a second domain and a fourth domain, at least one of the second domain in the first signaling and the fourth domain in the first signaling indicating MCSs of the M signals; when the first signal carries only a first target TB, whether the first signal occupies the first subset of DMRS ports or whether the second subset of DMRS ports is related to whether an MCS of the first target TB is indicated by the second field in the first signaling or by the fourth field in the first signaling.

As an embodiment, when the first signal carries only a first target TB, the first signal always occupies the first subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports.

As an embodiment, the first transmitter 1701 transmits a first information block; wherein the first information block indicates a maximum value of the M.

As an embodiment, the first signaling is a DCI, and the M integers are M positive integers not greater than 2, respectively; the second domain is located before the fourth domain in the first signaling; any one of the M groups of bits in the third domain in the first signaling includes a number of bits equal to 1, and any one of the M groups of bits in the fifth domain in the first signaling includes a number of bits equal to 1; the first signal is any one of the M signals.

As an embodiment, the M groups of bits in the third field in the first signaling and the second field in the first signaling are used together to determine whether the first signal carries a first TB, and the M groups of bits in the fifth field in the first signaling and the fourth field in the first signaling are used together to determine whether the first signal carries a second TB; when the maximum value of the M integers is equal to 2, if the first signal includes the first TB and the second TB, the first signal occupies the first DMRS port set; if the first signal includes only one of the first TB and the second TB, the first signal occupies only one of the first subset of DMRS ports and the second subset of DMRS ports.

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

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

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

As an example, the first transmitter 1701 includes at least one of { antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller/processor 475, memory 476} in example 4.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. User equipment, terminals and UEs in the present application include, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control airplanes, aircraft, mini-planes, cell phones, tablet computers, notebooks, vehicle-mounted communication devices, vehicles, RSUs, wireless sensors, network cards, internet of things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication ) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low cost cell phones, low cost tablet computers, and other wireless communication devices. The base station or system equipment in the present application includes, but is not limited to, macro cell base station, micro cell base station, small cell base station, home base station, relay base station, eNB, gNB, TRP (Transmitter Receiver Point, transmitting and receiving node), GNSS, relay satellite, satellite base station, air base station, RSU (Road Side Unit), unmanned aerial vehicle, and test equipment, such as a transceiver device or signaling tester simulating a function of a base station part.

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 (10)

1. A first node device for wireless communication, comprising:

a first receiver that receives a first signaling and M signals, the first signaling including scheduling information of the M signals, M being a positive integer greater than 1;

wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

2. The first node device of claim 1, wherein the first domain in the first signaling indicates the first DMRS port set from a target DMRS port set pool; the target DMRS port set pool is a first DMRS port set pool or a second DMRS port set pool, the maximum value of the M integers is used to determine the target DMRS port set pool from the first DMRS port set pool and the second DMRS port set pool; the first DMRS port set pool and the second DMRS port set pool each include a plurality of DMRS port sets.

3. The first node device of claim 1 or 2, wherein the first signaling comprises a second domain, a third domain, a fourth domain, and a fifth domain; at least one of the second domain in the first signaling and the fourth domain in the first signaling indicates MCSs of the M signals; the third domain in the first signaling comprises M bit groups, and the M bit groups in the third domain in the first signaling are in one-to-one correspondence with the M signals; the fifth domain in the first signaling comprises M bit groups, and the M bit groups in the fifth domain in the first signaling are in one-to-one correspondence with the M signals; the first signal is one of the M signals; the M groups of bits in the third field of the first signaling and the second field of the first signaling are used together to determine whether the first signal carries a first TB, and the M groups of bits in the fifth field of the first signaling and the fourth field of the first signaling are used together to determine whether the first signal carries a second TB.

4. The first node device of any of claims 1-3, wherein the first set of DMRS ports comprises a first subset of DMRS ports and a second subset of DMRS ports when the maximum of the M integers is equal to 2; the first signal is one of the M signals; whether the first signal carries one TB or two TBs is used to determine whether the first signal occupies only one or two of the first and second DMRS port subsets.

5. The first node device of claim 4, wherein the first signaling comprises a second domain and a fourth domain, at least one of the second domain in the first signaling and the fourth domain in the first signaling indicating the MCS of the M signals; when the first signal carries only a first target TB, whether the first signal occupies the first subset of DMRS ports or whether the second subset of DMRS ports is related to whether an MCS of the first target TB is indicated by the second field in the first signaling or by the fourth field in the first signaling.

6. The first node device of claim 4, wherein the first signaling comprises a second domain and a fourth domain, at least one of the second domain in the first signaling and the fourth domain in the first signaling indicating the MCS of the M signals; when the first signal carries only a first target TB, the first signal always occupies the first subset of DMRS ports of the first subset of DMRS ports and the second subset of DMRS ports.

7. The first node device of any of claims 1 to 6, wherein the first receiver receives a first block of information; wherein the first information block indicates a maximum value of the M.

8. A second node device for wireless communication, comprising:

a first transmitter that transmits a first signaling and M signals, the first signaling including scheduling information of the M signals, M being a positive integer greater than 1;

wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

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

receiving a first signaling, wherein the first signaling comprises scheduling information of M signals, and M is a positive integer greater than 1;

Receiving the M signals;

wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

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

transmitting a first signaling, wherein the first signaling comprises scheduling information of M signals, and M is a positive integer greater than 1;

transmitting the M signals;

wherein the M signals are mutually orthogonal in a time domain; any one of the M signals carries one TB or two TBs; the number of TB carried by the M signals is respectively equal to M integers; the first signaling comprises a first domain, the first domain in the first signaling and the maximum value in the M integers are used for determining a first DMRS port set together, and the DMRS port occupied by any one of the M signals belongs to the first DMRS port set; the first set of DMRS ports includes at least one DMRS port.

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