Lenovo (beijing) Limited

Lenovo Limited

Bingchao Liu

Wei Ling

Chenxi Zhu

Lingling Xiao

Yi Zhang

Lianhai Wu

Haiming Wang

Hongmei Liu

Haipeng Lei

Jing Han

Zhennian Sun

Zhi Yan

Yuantao Zhang

Jie Shi

Yingying Li

Vijay Nangia

Prateek Basu Mallick

Xin Guo

Xiaodong Yu

Tyler A Brown

Jie Hu

Ran Yue

Apparatuses, methods, and systems are disclosed for configuring sounding reference signal resource sets. One method () includes receiving (), at a user equipment, a radio resource control message configuring sounding reference signal resource sets for a set of resource groups with resource group identifiers, a set of antenna panels with panel identifiers, or a combination thereof, wherein: sounding reference signal resources of sounding reference signal resource sets indifferent resource groups of the set of resource groups, in different antenna panels of the set of antenna panels, or a combination thereof are transmitted one at a time.

Configuring sounding reference signal resource sets

Methods and apparatus of enhanced candidate allocation schemes for enhanced PDCCH are disclosed. The method includes: receiving, by a receiver, configurations of a plurality of search space sets that are linked for a Physical Downlink Control Channel (PDCCH) transmission with a plurality of repetitions; wherein the plurality of repetitions of the PDCCH are transmitted on a plurality of candidates; determining, by a processor, according to a priority rule with a predefined granularity, by counting the candidates from the linked search space sets, whether there is sufficient candidate resource available for allocation; and allocating, by the processor, the candidates, upon determining that there is sufficient candidate resource available for allocation.

Methods and apparatus of enhanced candidate allocation schemes for enhanced PDCCH

Apparatuses, methods, and systems are disclosed for transmission using DMRS from two code division multiplexing groups. One method () includes transmitting () information on a physical downlink shared channel to a user equipment, wherein: the information on the physical downlink shared channel is transmitted by: first demodulation reference signal ports of a first code division multiplexing group having a first number of demodulation reference signal ports; and second demodulation reference signal ports of a second code division multiplexing group having a second number of demodulation reference signal ports, wherein the first code division multiplexing group is different from the second code division multiplexing group, and the first number of demodulation reference signal ports is the same as the second number of demodulation reference signal ports.

Transmission using DMRS from two code division multiplexing groups

Methods and apparatuses for triggering an aperiodic SRS are disclosed. A method comprises receiving a RRC signaling configuring N triggering offsets for each of P aperiodic SRS resource sets, where N is 1 or more, P is 1 or more; receiving a MAC CE to activate one or more triggering offset(s) among all configured triggering offsets for each of M out of the P aperiodic SRS resource sets, where M is 1 to P; receiving a DCI containing a non-zero SRS request field triggering at least one aperiodic SRS resource set, wherein at least one triggering offset of each triggered aperiodic SRS resource set is activated by the MAC CE; and transmitting SRS resources contained in each triggered aperiodic SRS resource set in the first available slot among all candidate slots indicated by the activated triggering offsets for each triggered aperiodic SRS resource set.

Flexible triggering of aperiodic sounding reference signal (SRS)

Methods and apparatuses for associating aperiodic SRS triggering state(s) with SRS resource sets or SRS CC sets are disclosed. A method comprises transmitting an Activation/Deactivation MAC CE to indicate or update the association between aperiodic SRS triggering state(s) and the aperiodic SRS resource set(s) for the SRS request field value carried by DCI format 0_1 or 1_1 or DCI format 2_3 with a higher layer parameter srs-TPC-PDCCH-Group=typeB or the SRS CC set(s) for the SRS request field value carried by DCI format 2_3 with the higher layer parameter srs-TPC-PDCCH-Group=typeA.

Aperiodic SRS triggering and transmission

Apparatus and methods of span level TDM PDCCH transmission are disclosed. The apparatus includes: a receiver that receives a capability report from a device, wherein the capability report comprises Physical Downlink Control Channel (PDCCH) monitoring capability and/or beam switching capability of the device; a processor that generates PDCCH transmission parameters, based on the capability report, for transmitting a Downlink Control Information (DCI) with a plurality of PDCCH transmissions with span level repetitions; wherein the processor further configures, based on the PDCCH transmission parameters, a plurality of resources for transmitting the DCI, and a search space set for DCI detection in a PDCCH monitoring occasion set; and a transmitter that transmits the DCI in a plurality of DCI versions with the plurality of PDCCH transmissions using the plurality of resources.

Apparatus and methods of span level TDM PDCCH transmission

Methods and apparatuses for determining default spatial relation and default PL-RS are disclosed. A method comprises determining a default spatial relation and a default pathloss reference RS (PL-RS) for transmission of uplink resource on a serving cell without configured CORESET, the uplink resource is configured with neither higher layer parameter related to spatial relation nor higher layer parameter related to PL-RS, and the higher layer parameter related to enable default beam for the uplink resource is set to 'enable', and transmitting the uplink resource according to the determined default spatial relation and the power determined by the determined default PL-RS.

Default beam determination for uplink signal transmission

Apparatuses, methods, and systems are disclosed for updating SRS spatial relation information. One method includes transmitting first information indicating SRS spatial relation information for an SRS resource. The SRS spatial relation information includes: SRS spatial relation information identifiers; and an SRS spatial relation information reference signal corresponding to each SRS spatial relation information identifier. The method includes transmitting second information indicating an update to the SRS spatial relation information. The second information includes: a serving cell identifier; a bandwidth part identifier; one or more SRS resource identifiers, one or more SRS resource set identifiers, or a combination thereof; and one or more SRS spatial relation information identifiers. Each of the one or more SRS resource identifiers corresponds to each of the one or more SRS spatial relation information identifiers.

Updating sounding reference signal spatial relation information

Apparatus and methods of dynamic DAI counting and HARQ-ACK codebook generation for enhanced PDCCH transmission are disclosed. The apparatus includes: a processor that generates a common Downlink Assignment Indicator (DAI) value for a set of Physical Downlink Control Channel (PDCCH) transmissions, wherein the set of PDCCH transmissions are used to transmit first Downlink Control Information (DCI) that schedules a common Physical Downlink Shared Channel (PDSCH) transmission, and the common DAI value is generated based on a first reference PDCCH, wherein the first reference PDCCH is one of the PDCCH transmissions; a transmitter that transmits the first Downlink Control Information (DCI) with the set of PDCCH transmissions; and a receiver that receives a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) codebook with feedback information bits ordered based on a second reference PDCCH, wherein the second reference PDCCH is one of the PDCCH transmissions.

Dynamic downlink assignment indicator (DAI) counting and hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook generation for enhanced physical downlink control channel (PDCCH) transmission

Embodiments of the present application are related to a method and apparatus for hybrid automatic repeat request-acknowledge (HARQ-ACK) feedback in multi-transmit-receive point (multi-TRP) transmission. An exemplary method of the present application includes: receiving configuration information on HARQ-ACK feedback for physical downlink shared channel (PDSCH), wherein the configuration information at least indicates a plurality of CORESETPoolIndex values and a separate feedback mode for HARQ-ACK feedback excluding that for semi-persistent scheduling (SPS) PDSCH reception associated with different CORESETPoolIndex values, each CORESETPoolIndex value being associated with at least one physical uplink control channel (PUCCH) resource; and transmitting a plurality of HARQ-ACK feedback for SPS PDSCH receptions associated with at least one CORESETPoolIndex value in a time interval using a separate feedback scheme or a joint feedback scheme.

Method and apparatus for HARQ-ACK feedback in multi-TRP transmission

Methods and apparatus of enhanced counting schemes for candidates of enhanced PDCCH are disclosed. The method includes: counting, by a processor, candidates of PDCCH that are to be transmitted with a plurality of transmissions, based on a candidate counting scheme, wherein the candidates are linked with one another for transmissions of the PDCCH; generating, by the processor, configuration signaling of one or more search space sets for monitoring transmissions of the PDCCH; and transmitting, by a transmitter, the configuration signaling and the candidates of the PDCCH.

Methods and apparatus of enhanced counting schemes for candidates of enhanced PDCCH transmission

The present application is related to a method of failure handling in conditional handover. A method performed by a user equipment (UE) comprises: receiving a Conditional Handover (CHO) configuration; initiating a re-establishment procedure if one of a plurality first conditions is met; performing a cell selection procedure; performing a CHO procedure if a cell selected through the cell selection procedure is configured with the CHO configuration; and performing the re-establishment procedure if the selected cell is not configured with the CHO configuration.

Method of failure handling in conditional handover

Methods, a base unit and a remote unit are disclosed. According to one embodiment, a method at abase unit, comprise: transmitting higher layer parameters to configure two or more sounding reference signal (SRS) resource sets for a non-codebook based physical uplink share channel (PUSCH) transmission, the SRS resources in same SRS resource set are configured with same spatial relation information, and configuring and transmitting a quasi co-location (QCL) information for a non zero power (NZP) channel state information reference signal (CSI-RS) resource, in the condition that aperiodic NZP CSI-RS resource is associated with the SRS resource set for non-codebook based PUSCH transmission.

SRS configuration for non-codebook based PUSCH transmission

Embodiments of the present disclosure are related to a method and apparatus for power control of a physical uplink control channel (PUCCH) repetition of a PUCCH transmission with one or more beams or multiple transmit-receive points (TRPs). A method according to an embodiment of the present disclosure includes: receiving configuration information regarding a plurality of PUCCH repetitions of a PUCCH transmission, wherein the configuration information includes a plurality of power control parameter sets corresponding to the plurality of PUCCH repetitions; determining power for each PUCCH repetition of the plurality of PUCCH repetitions according to the configuration information and a mapping relationship between the each PUCCH repetition and a power control parameter set of the plurality of power control parameter sets; and transmitting, by using the determined power for the each PUCCH repetition, the each PUCCH repetition in a time interval of a plurality of time intervals.

Method and apparatus for power control of physical uplink control channel repetitions

Methods, a base unit and a remote unit are disclosed. According to one embodiment, a method at a base unit, comprise: transmitting to a remote unit a first message which includes a configuration related to two or more Sounding Reference Signal (SRS) resource groups each of which contains one or more SRS resources for codebook or non-codebook based UL transmission, wherein the one or more SRS resources in one SRS resource groups are transmitted by only one panel; and transmitting to the remote unit a second message which includes a set of power control parameters configured for each SRS resource group, wherein the set of power control parameters includes at least target receiving power, pathloss compensation factor and pathloss reference signal.

Growing community of inventors

Beijing, China

Bingchao Liu