Patent Description:
New radio (NR) system introduces a multi-transmission/reception point (TRP) based non-coherent joint transmission. Multiple TRPs are connected through backhaul link for coordination. The backhaul link can be ideal or non-ideal. In the case of ideal backhaul, the TRPs can exchange dynamic physical downlink shared channel (PDSCH) scheduling information with short latency and thus different TRPs can coordinate a PDSCH transmission per PDSCH transmission. While, in non-ideal backhaul case, the information exchange between TRPs has large latency and thus the coordination between TRPs can only be semi-static or static.

In current methods, physical uplink shared channel (PUSCH) can only be sent with one transmission configuration that include a sounding reference signal (SRS) resource for port indication and uplink power control parameters. The SRS resource for port indication also implicitly indicate a spatial setting for PUSCH transmission. Due to that design, the UE can only transmit the PUSCH to one TRP. In a multi-TRP system, to increase reliability of PUSCH transmission, the UE can send the same uplink transport block to both TRPs. The current method is not able to support that. The consequence is that the current method cannot utilize diversity of multi-TRP reception to improve uplink reliability. 3GPP DRAFT R1-<NUM> is a related prior art for this field. More particularly, 3GPP DRAFT R1-<NUM> discloses a user equipment (UE) procedure for transmitting a PUSCH. 3GPP DRAFT R1-<NUM> is a related prior art for this field. More particularly, 3GPP DRAFT R1-<NUM> discloses ultra-reliable low-latency communications (URLLC) enhanced configured grant transmission. <CIT> is a related prior art for this field. More particularly, <CIT> discloses a wireless communication method by a user equipment (UE) including being scheduled with a PUSCH with one or more repetition transmissions and being indicated with transmission configurations for the PUSCH with one or more repetition transmissions. <CIT> discloses a wireless communication method capable of appropriately controlling the transmission of the PUSCH even when the UE repetitively transmits the PUSCH to the plurality of TRPs, by associating the TCI state with the repetitions of the PUSCH or a redundancy version (RV) of the PUSCH.

Therefore, there is a need for an apparatus (such as a user equipment (UE) and/or a base station) and a method of wireless communication, which can solve issues in the prior art, utilize multi-transmission/reception point (TRP) reception, improve uplink reliability, provide a good communication performance, and/or provide high reliability.

In order to illustrate the embodiments of the present disclosure or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present disclosure, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise.

In non-coherent joint transmission, different transmission/reception points (TRPs) use different physical downlink control channels (PDCCHs) to schedule physical downlink sharing channel (PDSCH) transmission independently. Each TRP can send one downlink control information (DCI) to schedule one PDSCH transmission. PDSCHs from different TRPs can be scheduled in the same slot or different slots. Two different PDSCH transmissions from different TRPs can be fully overlapped or partially overlapped in PDSCH resource allocation. To support multi-TRP based non-coherent joint transmission, a user equipment (UE) is requested to receive PDCCH from multiple TRPs and then receive PDSCH sent from multiple TRPs. For each PDSCH transmission, the UE can feedback a hybrid automatic repeat request-acknowledge (HARQ-ACK) information to a network. In multi-TRP transmission, the UE can feedback the HARQ-ACK information for each PDSCH transmission to the TRP transmitting the PDSCH. The UE can also feedback the HARQ-ACK information for a PDSCH transmission sent from any TRP to one particular TRP.

An example of multi-TRP based non-coherent joint transmission is illustrated in <FIG>. A UE receives a PDSCH based on non-coherent joint transmission from two TRPs: TRP1 and TRP2. As illustrated in <FIG>, the TRP1 sends one DCI to schedule a transmission of PDSCH <NUM> to the UE and the TRP2 sends one DCI to schedule a transmission of PDSCH <NUM> to the UE. At the UE side, the UE receives and decodes DCI from both TRPs. Based on the DCI from the TRP1, the UE receives and decodes the PDSCH <NUM> and based on the DCI from the TRP2, the UE receives and decodes the PDSCH <NUM>. In the example illustrated in <FIG>, the UE reports HARQ-ACK for PDSCH <NUM> and PDSCH2 to the TRP1 and the TRP <NUM>, respectively. The TRP1 and the TRP <NUM> use different control resource sets (CORESETs) and search spaces to transmit DCI scheduling PDSCH transmission to the UE. Therefore, the network can configure multiple CORESETs and search spaces. Each TRP can be associated with one or more CORESETs and also the related search spaces. With such configuration, the TRP would use the associated CORESET to transmit DCI to schedule a PDSCH transmission to the UE. The UE can be requested to decode DCI in CORESETs associated with either TRP to obtain PDSCH scheduling information.

Another example of multi-TRP transmission is illustrated in <FIG>. A UE receives PDSCH based on non-coherent joint transmission from two TRPs: TRP1 and TRP2. As illustrated in <FIG>, the TRP1 sends one DCI to schedule a transmission of PDSCH <NUM> to the UE and the TRP2 sends one DCI to schedule the transmission of PDSCH <NUM> to the UE. At the UE side, the UE receives and decodes DCI from both TRPs. Based on the DCI from the TRP1, the UE receives and decodes the PDSCH <NUM> and based on the DCI from the TRP2, the UE receives and decodes the PDSCH <NUM>. In the example illustrated in <FIG>, the UE reports HARQ-ACK for both PDSCH <NUM> and PDSCH2 to the TRP, which is different from the HARQ-ACK reporting in the example illustrated in <FIG>. The example illustrated in <FIG> needs ideal backhaul between the TRP <NUM> and the TRP <NUM>, while the example illustrated in <FIG> can be deployed in the scenarios that the backhaul between the TRP <NUM> and the TRP <NUM> is ideal or non-ideal.

In new radio/5th generation (NR/<NUM>) systems, a higher layer parameter CORSETPoolIndex is used to differentiate whether multi-TRP transmission is supported in one serving cell or not. In one serving cell, if multi-TRP transmission is supported, CORESETs in that serving cell would be configured with one of two different values for the higher layer parameter CORESETPoolIndex. In details, in one bandwidth part (BWP) of the serving cell, if the UE is provided with higher layer parameter CORESETPoolIndex with a value of <NUM> or not provided with higher layer parameter for some CORESETs and is provided with higher layer parameter CORESETPoolIndex with a value of <NUM> for other CORESET(s), then multi-TRP transmission is supported for that UE in the BWP of the serving cell.

In one active BWP of a serving cell, the UE can be configured with one of the following HARQ-ACK feedback modes: a joint HARQ-ACK feedback mode and a separate HARQ-ACK feedback mode. In the joint HARQ-ACK feedback mode, the HARQ-ACK bits for PDSCHs from all the TRPs are multiplexed in one same HARQ codebook and then the UE reports that HARQ-ACK codebook in one physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) to the system. In contrast, in the separate HARQ-ACK feedback mode, the UE generates HARQ-ACK codebook for the PDSCHs of each TRP separately and then reports each HARQ-ACK codebook separately in different PUCCH transmissions or PUSCH transmissions. In separate HARQ-ACK transmission, the UE would assume the PUCCHs carrying HARQ-ACK bits for different TRPs are not overlapped in time domain.

Current <NUM> specification supports two methods of PUSCH repetition transmission: slot-based repetition and mini-slot repetition. In slot-based repetition (i.e., Type A repetition), the UE is indicated with a repetition number K for the PUSCH transmission and the same symbol allocation is applied across K consecutive slots and the PUSCH is limited to a single transmission layer. The UE may repeat the transport block (TB) across K consecutive slots applying the same symbol allocation in each slot.

In mini-slot based repetition (i.e., type B repetition), the UE is indicated with a repetition number of K for the PUSCH transmission and the UE transmits the K PUSCH repetition in consecutive symbols. The UE determines the symbol location and slot location for each nominal PUSCH repetition of type B as follows. For PUSCH repetition type B, the number of nominal repetitions is given by numberofrepetitions. For the n-th nominal repetition, n = <NUM>,. , numberofrepetitions - <NUM>. The slot where the nominal repetition starts is given by <MAT>, and the starting symbol relative to the start of the slot is given by <MAT>. The slot where the nominal repetition ends is given by <MAT>, and the ending symbol relative to the start of the slot is given by <MAT>. Here Ks is the slot where the PUSCH transmission starts, and <MAT> is the number of symbols per slot.

For PUSCH repetition Type B, the UE may first determine invalid symbols for PUSCH repetition type B according some conditions. For PUSCH repetition Type B, after determining the invalid symbol(s) for PUSCH repetition type B transmission for each of the K nominal repetitions, the remaining symbols are considered as potentially valid symbols for PUSCH repetition Type B transmission. If the number of potentially valid symbols for PUSCH repetition type B transmission is greater than zero for a nominal repetition, the nominal repetition consists of one or more actual repetitions, where each actual repetition consists of a consecutive set of potentially valid symbols that can be used for PUSCH repetition Type B transmission within a slot. An actual repetition is omitted according to the conditions as defined by the slot format determination. The redundancy version to be applied on the nth actual repetition (with the counting including the actual repetitions that are omitted) is determined according to the following table.

<FIG> illustrates that, in some embodiments, one or more user equipments (UEs) <NUM> and a base station (e.g., gNB or eNB) <NUM> for transmission adjustment in a communication network system <NUM> according to an embodiment of the present disclosure are provided. The communication network system <NUM> includes the one or more UEs <NUM> and the base station <NUM>. The one or more UEs <NUM> may include a memory <NUM>, a transceiver <NUM>, and a processor <NUM> coupled to the memory <NUM> and the transceiver <NUM>. The base station <NUM> may include a memory <NUM>, a transceiver <NUM>, and a processor <NUM> coupled to the memory <NUM> and the transceiver <NUM>. The processor <NUM> or <NUM> may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor <NUM> or <NUM>. The memory <NUM> or <NUM> is operatively coupled with the processor <NUM> or <NUM> and stores a variety of information to operate the processor <NUM> or <NUM>. The transceiver <NUM> or <NUM> is operatively coupled with the processor <NUM> or <NUM>, and the transceiver <NUM> or <NUM> transmits and/or receives a radio signal.

In some embodiments, the processor <NUM> is configured to be scheduled with a physical uplink shared channel (PUSCH) with one or more repetition transmissions. The processor <NUM> is configured to be indicated with transmission configurations for the PUSCH with one or more repetition transmissions. This can solve issues in the prior art, utilize multi-transmission/reception point (TRP) reception, improve uplink reliability, provide a good communication performance, and/or provide high reliability.

In some embodiments, the processor <NUM> is configured to schedule, to the UE <NUM>, a physical uplink shared channel (PUSCH) with one or more repetition transmissions. The processor <NUM> is configured to indicate, to the UE <NUM>, transmission configurations for the PUSCH with one or more repetition transmissions. This can solve issues in the prior art, utilize multi-transmission/reception point (TRP) reception, improve uplink reliability, provide a good communication performance, and/or provide high reliability.

<FIG> illustrates a method <NUM> of wireless communication by a user equipment (UE) <NUM> according to an embodiment of the present disclosure. In some embodiments, the method <NUM> includes: a block <NUM>, being scheduled with a physical uplink shared channel (PUSCH) with one or more repetition transmissions, and a block <NUM>, being indicated with transmission configurations for the PUSCH with one or more repetition transmissions. This can solve issues in the prior art, utilize multi-transmission/reception point (TRP) reception, improve uplink reliability, provide a good communication performance, and/or provide high reliability.

<FIG> illustrates a method <NUM> of wireless communication by a base station <NUM> according to an embodiment of the present disclosure. In some embodiments, the method <NUM> includes: a block <NUM>, scheduling, to a user equipment (UE), a physical uplink shared channel (PUSCH) with one or more repetition transmissions, and a block <NUM>, indicating, to the UE, transmission configurations for the PUSCH with one or more repetition transmissions. This can solve issues in the prior art, utilize multi-transmission/reception point (TRP) reception, improve uplink reliability, provide a good communication performance, and/or provide high reliability.

In some embodiments, the transmission configurations comprise transmission configuration indicator (TCI) states and/or higher layer parameters configured to provide a mapping between a sounding reference signal (SRS) resource indicator (SRI) and PUSCH power control parameters. In some embodiments, each of the TCI states comprises a transmission mode of the PUSCH, one or more SRS resources for port indication, a spatial relation configuration, and/or one or more uplink power control parameters. In some embodiments, the higher layer parameters comprise SRI-PUSCH-PowerControl parameters, and each of the SRI-PUSCH-PowerControl parameters comprises a sri-PUSCH-PowerControlId parameter, a sri-PUSCH-PathlossReferenceRS-Id parameter, a sri-P0-PUSCH-AlphaSetId parameter, and/or a sri-PUSCH-ClosedLoopIndex parameter. In some embodiments, the UE is requested to apply an indicated transmission configuration on one or more PUSCH repetition transmissions.

In some embodiments, the PUSCH with one or more repetition transmissions comprise a PUSCH type A repetition and a PUSCH type B repetition. In some embodiments, for the PUSCH type A repetition, an indicated transmission configuration is applied on each PUSCH transmission. In some embodiments, for the PUSCH type B repetition, an indicated transmission configuration is applied on each nominal repetition or each actual repetition. In some embodiments, the UE is scheduled with the PUSCH with one or more repetition transmissions through downlink control information (DCI). In some embodiments, the DCI comprises a DCI format 0_1 or a DCI format 0_2. In some embodiments, one or more TCI states or one or more higher layer parameters are mapped to one or more codepoints of a DCI field in the DCI. In some embodiments, the DCI indicates a first SRI DCI field and a second SRI DCI field, the first SRI DCI field indicates one or more SRS resources and one SRI-PUSCH-PowerControl parameter, and/or the second SRI DCI field indicates one or more SRS resources and one SRI-PUSCH-PowerControl parameter.

In some embodiments, a mapping pattern of applying an indicated transmission configuration is performed on each PUSCH transmission occasion. In some embodiments, the mapping pattern is configured by radio resource control (RRC). In some embodiments, the mapping pattern is mapped to one or more codepoints of a DCI field of the DCI by a medium access control (MAC) control element (CE). In some embodiments, an SRI bit field of the DCI indicates one or two combinations of SRS resources and uplink power control parameters. In some embodiments, for the PUSCH type A repetition and/or the PUSCH type B repetition, one or more indicated combinations of SRS resources and uplink power control parameters are applied on each PUSCH transmission occasion. In some embodiments, a mapping between an SRI codepoint to one or more indicated combinations of SRS resources and uplink power control parameters is configured in an RRC. In some embodiments, a mapping between an SRI codepoint to one or more indicated combinations of SRS resources and uplink power control parameters is activated by a MAC CE. In some embodiments, bit fields in the DCI indicate indicated combinations of SRS resources and uplink power control parameters for the PUSCH type A repetition and/or the PUSCH type B repetition.

In one embodiment, a UE can be scheduled with a PUSCH with repetition transmission through DCI format 0_1 or 0_2. For the PUSCH with repetition transmission, the UE can be indicated with two (two is used an example here, it can be any number > <NUM>) transmission configurations, each of which can contains SRS resource(s) for PUSCH port indication, spatial setting, and/or uplink power control parameter, for PUSCH with repetition transmission. The UE can be requested to apply the indicated transmission configuration on each PUSCH transmission among those repetition transmissions according to a predefined or configured application pattern. In one example, the UE is scheduled with a PUSCH transmission with <NUM> repetitions and the UE is indicated with two transmission configurations: a first transmission configuration and a second transmission configuration. The UE can be requested to apply one of the first transmission configuration and the second transmission configuration on each PUSCH repetition transmission. For example, the UE may apply the first transmission configuration on the <NUM>st and <NUM>rd PUSCH repetition transmissions and apply the second transmission configuration on the <NUM>nd and <NUM>th PUSCH repetition transmissions.

In a first exemplary method, a UE can be configured with a list of M UL TCI states for PUSCH transmission. Each UL TCI state can contain one or more of the following information for PUSCH transmission:
Transmission mode of a PUSCH: for example, it can be codebook-based PUSCH transmission or non-codebook-based PUSCH transmission.

One or more SRS resources for port indication.

Spatial relation configuration to provide the configuration information for the UE to derive spatial domain transmission filter, which can be provided with a SS/PBCH block index, CSI-RS resource ID or SRS resource ID.

Uplink power control parameters including p0, alpha, pathloss RS, and closedloop index.

The UE can receive a MAC CE command that activate up to, for example, <NUM> combinations of one or two UL TCI states for PUSCH transmission and each combination of one or two UL TCI states is mapped to one codepoint of a first DCI field in the DCI format scheduling PUSCH transmission for example DCI format 0_1 or 0_2. For a PUSCH transmission with Type A or Type B repetition scheduled by a DCI format, for example DCI format 0_1 or 0_2, the first DCI field in the DCI format can indicate two UL TCI states for the PUSCH transmission, the UE may apply those two indicated UL TCI states on each PUSCH transmission according some predefined rule or configured pattern. Those two UL TCI states indicated by the first DCI field are called the first TCI state and the second TCI state here.

In one example, if the PUSCH repetition is Type A, the same symbol allocation for PUSCH is applied across K constructive slots, where the K is the number of repetitions indicated to the UE. The UE may repeat the TB across the K consecutive slots applying the same symbol allocation in each slot. The UE can be requested to apply the first UL TCI state and the second TCI state on PUSCH transmission occasions according to one or more of the following patterns:.

For example, When K = <NUM>, the first UL TCI state is applied to the first PUSCH transmission occasion and the second UL TCI state is applied to the second PUSCH transmission occasion.

For example, when K > <NUM>, the first and second UL TCI states are applied to the first and second PUSCH transmission occasions, respectively, and the same UL TCI mapping pattern continues to the remaining PUSCH transmission occasions.

For example, when K > <NUM>, first UL TCI state is applied to the first and second PUSCH transmissions, and the second UL TCI state is applied to the third and fourth PUSCH transmissions, and the same UL TCI mapping pattern continues to the remaining PUSCH transmission occasions.

For example, the first UL TCI state is applied to all the n-th (n=<NUM>, <NUM>, <NUM>,. ) PUSCH transmissions and the second UL TCI state is applied to all the n-th with n=<NUM>, <NUM>, <NUM>,. PUSCH transmissions.

For example, the first UL TCI state is applied n-th ( <MAT>) PUSCH transmissions and the second UL TCI state is applied to n-th PUSCH transmission with <MAT>.

In one example, if a PUSCH repetition is Type B, the UE is indicated with the starting symbol S, length L and the number of nominal repetitions numberofrepetitions. The UE may first determine the slot and symbol location for each of the nominal repetition. The UE determines invalid symbol(s) and then determine actual PUSCH repetition(s).

In a first example, the UE can be requested to map the first UL TCI state and the second UL TCI state to each nominal repetition. The UE can be requested to map the first UL TCI state and the second TCI state to each nominal repetition as one or more of the following methods:.

For example, when numberofrepetitions = <NUM>, the first UL TCI state is applied to the first nominal repetition and the second UL TCI state is applied to the second nominal repetition.

For example, when numberofrepetitions > <NUM>, the first and second UL TCI states are applied to the first and second nominal repetitions, respectively, and the same UL TCI mapping pattern continues to the remaining nominal repetitions.

For example, when numberofrepetitions > <NUM>, first UL TCI state is applied to the first and second nominal repetitions, and the second UL TCI state is applied to the third and fourth nominal repetitions, and the same UL TCI mapping pattern continues to the remaining nominal repetitions.

For example, the first UL TCI state is applied to all the n-th (n=<NUM>, <NUM>, <NUM>,. ) nominal repetitions and the second UL TCI state is applied to all the n-th (n=<NUM>, <NUM>, <NUM>,. ) nominal repetitions.

For example, the first UL TCI state is applied <MAT>nominal repetitions and the second UL TCI state is applied to n-th nominal repetitions with <MAT>where K = numberofrepetitions.

For example, the first UL TCI state is applied n-th with <MAT>nominal repetitions and the second UL TCI state is applied to n-th nominal repetitions with <MAT>, where K = numberofrepetitions.

In a second example, the UE can be requested to map the first UL TCI state and the second UL TCI state to each actual repetition. The UE can be requested to map the first UL TCI state and the second TCI state to each actual repetition as one or more of the following methods:.

For example, when number of actual repetitions is <NUM>, the first UL TCI state is applied to the first actual repetition and the second UL TCI state is applied to the second actual repetition.

For example, when number of actual repetitions is > <NUM>, the first and second UL TCI states are applied to the first and second actual repetitions, respectively, and the same UL TCI mapping pattern continues to the remaining actual repetitions.

For example, when number of actual repetitions is > <NUM>, first UL TCI state is applied to the first and second actual repetitions, and the second UL TCI state is applied to the third and fourth actual repetitions, and the same UL TCI mapping pattern continues to the remaining actual repetitions.

For example, the first UL TCI state is applied to all the n-th (n=<NUM>, <NUM>, <NUM>,. ) actual repetitions and the second UL TCI state is applied to all the n-th (n= <NUM>, <NUM>, <NUM>,. ) actual repetitions.

For example, the first UL TCI state is applied n-th with <MAT>, actual repetitions and the second UL TCI state is applied to n-th actual repetitions with <MAT>, where K = numberofrepetitions.

In a second exemplary method, a UE can be configured with a list of M SRI-PUSCH-PowerControl. And the UE can receive one MAC CE that can map one or two SRI-PUSCH-PowerControl to one codepoint of a DCI field (for example the SRS resource indicator DCI field) of one DCI format scheduling PUSCH transmission. In each SRI-PUSCH-PowerControl, the UE is provided with the following parameters:.

For a PUSCH transmission with Type A or Type repetition scheduled by a DCI format, for example DCI format 0_1 or 0_2, the DCI field (for example the SRS resource indicator DCI field) in the DCI format can indicate two SRI-PUSCH-PowerControl for the PUSCH transmission, the UE may apply those two indicated SRI-PUSCH-PowerControl on each PUSCH transmission according some predefined rule or configured pattern. Those two SRI-PUSCH-PowerControl indicated by the DCI field are called the first TCI state and the second TCI state here.

In one example, if the PUSCH repetition is Type A, the same symbol allocation for PUSCH is applied across K constructive slots, where the K is the number of repetitions indicated to the UE. The UE may repeat the TB across the K consecutive slots applying the same symbol allocation in each slot. The UE can be requested to apply the first SRI-PUSCH-PowerControl and the second SRI-PUSCH-PowerControl on PUSCH transmission occasions according to one or more of the following patterns:.

For example, When K = <NUM>, the first SRI-PUSCH-PowerControl is applied to the first PUSCH transmission occasion and the second SRI-PUSCH-PowerControl is applied to the second PUSCH transmission occasion.

For example, when K > <NUM>, the first and second SRI-PUSCH-PowerControl are applied to the first and second PUSCH transmission occasions, respectively, and the same SRI-PUSCH-PowerControl mapping pattern continues to the remaining PUSCH transmission occasions.

For example, when K > <NUM>, first SRI-PUSCH-PowerControl is applied to the first and second PUSCH transmissions, and the second SRI-PUSCH-PowerControl is applied to the third and fourth PUSCH transmissions, and the same SRI-PUSCH-PowerControl mapping pattern continues to the remaining PUSCH transmission occasions.

For example, the first SRI-PUSCH-PowerControl is applied to all the n-th (n=<NUM>, <NUM>, <NUM>,. ) PUSCH transmissions and the second SRI-PUSCH-PowerControl is applied to all the n-th with n=<NUM>, <NUM>, <NUM>,. PUSCH transmissions.

For example, the first SRI-PUSCH-PowerControl is applied n-th ( <MAT>) PUSCH transmissions and the second SRI-PUSCH-PowerControl is applied to n-th PUSCH transmission with <MAT>.

For example, the first SRI-PUSCH-PowerControl is applied n-th ( <MAT>) PUSCH transmissions and the second SRI-PUSCH-PowerControl is applied to n-th PUSCH transmission with <MAT>.

In a first example, the UE can be requested to map the first SRI-PUSCH-PowerControl and the second SRI-PUSCH-PowerControl to each nominal repetition. The UE can be requested to map the first SRI-PUSCH-PowerControl and the second SRI-PUSCH-PowerControl to each nominal repetition as one or more of the following methods:.

For example, when numberofrepetitions = <NUM>, the first SRI-PUSCH-PowerControl is applied to the first nominal repetition and the second SRI-PUSCH-PowerControl is applied to the second nominal repetition.

For example, when numberofrepetitions > <NUM>, the first and second SRI-PUSCH-PowerControl are applied to the first and second nominal repetitions, respectively, and the same SRI-PUSCH-PowerControl mapping pattern continues to the remaining nominal repetitions.

For example, when numberofrepetitions > <NUM>, first SRI-PUSCH-PowerControl is applied to the first and second nominal repetitions, and the second SRI-PUSCH-PowerControl is applied to the third and fourth nominal repetitions, and the same SRI-PUSCH-PowerControl mapping pattern continues to the remaining nominal repetitions.

For example, the first SRI-PUSCH-PowerControl is applied to all the n-th (n=<NUM>,<NUM>, <NUM>,. ) nominal repetitions and the second SRI-PUSCH-PowerControl is applied to all the n-th(n=<NUM>, <NUM>, <NUM>,. ) nominal repetitions.

For example, the first SRI-PUSCH-PowerControl is applied n-th with <MAT>, nominal repetitions and the second SRI-PUSCH-PowerControl is applied to n-th nominal repetitions with <MAT>, where K = numberofrepetitions.

In a second example, the UE can be requested to map the first SRI-PUSCH-PowerControl and the second SRI-PUSCH-PowerControl to each actual repetition. The UE can be requested to map the first SRI-PUSCH-PowerControl and the second SRI-PUSCH-PowerControl to each actual repetition as one or more of the following methods:.

For example, when number of actual repetitions is <NUM>, the first SRI-PUSCH-PowerControl is applied to the first actual repetition and the second SRI-PUSCH-PowerControl is applied to the second actual repetition.

For example, when number of actual repetitions is > <NUM>, the first and second SRI-PUSCH-PowerControl are applied to the first and second actual repetitions, respectively, and the same SRI-PUSCH-PowerControl mapping pattern continues to the remaining actual repetitions.

For example, when number of actual repetitions is > <NUM>, first SRI-PUSCH-PowerControl is applied to the first and second actual repetitions, and the second SRI-PUSCH-PowerControl is applied to the third and fourth actual repetitions, and the same SRI-PUSCH-PowerControl mapping pattern continues to the remaining actual repetitions.

For example, the first SRI-PUSCH-PowerControl is applied to all the n-th (n=<NUM>, <NUM>, <NUM>,. ) actual repetitions and the second SRI-PUSCH-PowerControl is applied to all the n-th (n= <NUM>, <NUM>, <NUM>,. ,) actual repetitions.

For example, the first SRI-PUSCH-PowerControl is applied n-th with <MAT>, actual repetitions and the second SRI-PUSCH-PowerControl is applied to n-th actual repetitions with <MAT>, where K = numberofrepetitions.

In a third exemplary method, a DCI format scheduling PUSCH transmission, for example DCI format 0_1 or 0_2 can indicate one SRS resource indicator DCI field and one SRS resource indictor-<NUM> DCI field. The SRS resource indicator DCI field can indicate one or more SRS resources and one SRI-PUSCH-PowerControl. And the SRS resource indicator-<NUM> DCI field can also indicate one or more SRS resources and one SRI-PUSCH-PowerControl. For a PUSCH transmission with Type A or Type repetition scheduled by a DCI format, for example DCI format 0_1 or 0_2, the UE may apply the SRS resource(s) and SRI-PUSCH-PowerControl indicated by the DCI field SRS resource indicator and the SRS resource(s) and SRI-PUSCH-PowerControl indicated by the DCI field SRS resource indicator-<NUM> on each PUSCH transmission according some predefined rule or configured pattern. The UE can the UE may apply the SRS resource(s) and SRI-PUSCH-PowerControl indicated by the DCI field SRS resource indicator and the SRS resource(s) and SRI-PUSCH-PowerControl indicated by the DCI field SRS resource indicator-<NUM> on each PUSCH transmission occasion of PUSCH repetition type A according the methods described in this disclosure.

In a fourth exemplary method, the UE can be configured with a mapping pattern to describe how the UE may apply the indicated UL TCI states (or indicated combinations of SRS resources and uplink power control parameters) to the PUSCH transmission occasions or PUSCH repetitions.

In one example, the UE can be configured with a mapping pattern in RRC.

In one example, the UE can be configured with a list of mapping patterns and the UE can be indicated with an association between mapping patterns to the codepoints of a first DCI field in DCI format scheduling PUSCH transmissions. For example, the UE receives one MAC CE command that maps up to, e.g., <NUM> or <NUM>, mapping pattern to the codepoints of the first DCI field in the DCI format scheduling PUSCH transmissions.

For a PUSCH with repetition scheduled by for example DCI format 0_1 or 0_2, the UE can be indicated with two UL TCI states by a DCI field and the UE can be indicated with a mapping pattern by the first DCI field. Then then UE may apply the indicated UL TCI states on the PUSCH transmission occasions or PUSCH repetition (for example nominal repetition, for example actual repetition) by following the indicated mapping pattern.

In summary, in some embodiment of this disclosure, the methods for transmitting PUSCH in multi-TRP system are presented:.

The UE is configured with M TCI states for PUSCH transmission and each TCI state include the information of SRS resource(s) for port indication, spatial relation configuration, and/or uplink power control parameters. The gNB can map one or two TCI states to one codepoint of a first DCI field in the DCI format 0_1 or 0_2.

For a PUSCH with repetition Type A, the UE can apply the indicated TCI state on each PUSCH transmission.

For PUSCH Type B repetition:
Alteration (Alt) <NUM>: indicated UL TCI states are applied on each nominal repetition.

Alt <NUM>: indicated UL TCI states are applied on each actual repetition.

The mapping pattern of applying TCI state on each PUSCH transmission occasion:.

The mapping pattern can be configured by RRC.

A MAC CE maps the mapping pattern to the codepoints of a DCI field and DCI dynamically indicate one mapping pattern.

The SRI bit field in DCI format 0_1 or 0_2 can indicate one or two combinations of SRS resources and uplink power control parameters. For a PUSCH with repetition Type A or Type B, the UE may apply the indicated configuration combinations of SRS resource(s) and uplink power control parameters on each PUSCH transmission occasion:.

The mapping between SRI codepoint to the combination of SRS resources and uplink power control parameters is configured in RRC.

The mapping between SRI codepoint to the combination(s) of SRS resources and uplink power control parameters is activated by MAC CE.

Use two bit fields in DCI format to indicate two combination of SRS resource(s) and uplink power control parameters for PUSCH with repetition Type A and Type B.

Commercial interests for some embodiments are as follows. Solving issues in the prior art. Utilizing multi-transmission/reception point (TRP) reception. Improving uplink reliability. Providing a good communication performance. Providing high reliability. Some embodiments of the present disclosure are used by <NUM>-NR chipset vendors, V2X communication system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles), smartphone makers, communication devices for public safety use, AR/VR device maker for example gaming, conference/seminar, education purposes. The deployment scenarios include, but not limited to, indoor hotspot, dense urban, urban micro, urban macro, rural, factor hall, and indoor D2D scenarios. Some embodiments of the present disclosure are a combination of "techniques/processes" that can be adopted in 3GPP specification to create an end product. Some embodiments of the present disclosure could be adopted in <NUM> NR licensed and non-licensed or shared spectrum communications. Some embodiments of the present disclosure propose technical mechanisms. The present example embodiment is applicable to NR in unlicensed spectrum (NR-U). The present disclosure can be applied to other mobile networks, in particular to mobile network of any further generation cellular network technology (<NUM>, etc.).

<FIG> is a block diagram of an example system <NUM> for wireless communication according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the system using any suitably configured hardware and/or software. <FIG> illustrates the system <NUM> including a radio frequency (RF) circuitry <NUM>, a baseband circuitry <NUM>, an application circuitry <NUM>, a memory/storage <NUM>, a display <NUM>, a camera <NUM>, a sensor <NUM>, and an input/output (I/O) interface <NUM>, coupled with each other at least as illustrated. The application circuitry <NUM> may include a circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors. The processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system.

In various embodiments, the baseband circuitry <NUM> may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency. For example, in some embodiments, baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency. The RF circuitry <NUM> may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. In various embodiments, the RF circuitry <NUM> may include circuitry to operate with signals that are not strictly considered as being in a radio frequency. For example, in some embodiments, RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.

In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry. As used herein, "circuitry" may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/storage may be implemented together on a system on a chip (SOC). The memory/storage <NUM> may be used to load and store data and/or instructions, for example, for system. The memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM)), and/or non-volatile memory, such as flash memory.

In various embodiments, the I/O interface <NUM> may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system. User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface. In various embodiments, the sensor <NUM> may include one or more sensing devices to determine environmental conditions and/or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.

In various embodiments, the display <NUM> may include a display, such as a liquid crystal display and a touch screen display. In various embodiments, the system <NUM> may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR/VR glasses, etc. In various embodiments, system may have more or less components, and/or different architectures. Where appropriate, methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium.

A person having ordinary skill in the art understands that each of the units, algorithm, and steps described and disclosed in the embodiments of the present disclosure are realized using electronic hardware or combinations of software for computers and electronic hardware. Whether the functions run in hardware or software depends on the condition of application and design requirement for a technical plan. A person having ordinary skill in the art can use different ways to realize the function for each specific application while such realizations should not go beyond the scope of the present disclosure. It is understood by a person having ordinary skill in the art that he/she can refer to the working processes of the system, device, and unit in the above-mentioned embodiment since the working processes of the above-mentioned system, device, and unit are basically the same. For easy description and simplicity, these working processes will not be detailed.

Claim 1:
A wireless communication method performed by a user equipment, UE (<NUM>), comprising
being scheduled with a physical uplink shared channel, PUSCH, with one or more repetition transmissions (<NUM>),
being indicated with transmission configurations for the PUSCH with one or more repetition transmissions (<NUM>), wherein if a PUSCH repetition is Type A, the same symbol allocation for PUSCH is applied across K consecutive slots, where the K is a number of repetitions indicated to the UE (<NUM>); and
being requested to apply a first uplink, UL, transmission configuration indicator, TCI, state and a second UL TCI state on PUSCH transmission occasions, characterized in that:
when K > <NUM>, the first UL TCI state is applied to the first PUSCH transmission occasion and the second PUSCH transmission occasion, the second UL TCI state is applied to a third PUSCH transmission occasion and a fourth PUSCH transmission occasion, and the same UL TCI mapping pattern continues to remaining PUSCH transmission occasions.