Patent Description:
The present disclosure relates generally to communication systems, and more particularly, to a spatial diversity transmission scheme.

<CIT> discloses systems and methods for beam management, in which systems, methods, and devices are disclosed for determining a beam modulation mode and/or a carrier modulation mode. It is disclosed that a beamformed reference signal may be transmitted to a wireless transmit/receive unit (WTRU). It is disclosed that a beam measurement report may be received from the WTRU. The beam measurement report may include a beam modulation mode recommendation and/or a carrier modulation mode recommendation. It is disclosed that a beam modulation mode and/or a carrier modulation mode may be determined based on a mode recommendation. It is disclosed that a beam modulation mode and/or a carrier modulation mode may indicate a manner of transmitting same information on multiple beams.

The 3GPP proposal of InterDigital Communications "<NPL>, is also considered to be a valuable document.

A <NUM> New Radio (NR) communication system, which may include a millimeter wave (mmW) communication system, may use directional beamforming to increase the signal-to-noise (SNR) of signals transmitted between a base station and a user equipment (UE). One potential drawback from using directional beamforming is that a beamformed channel may be sensitive to dynamic blocking - e.g., the SNR between the base station and the UE may decrease and/or a radio link between the base station and the UE may fail.

For example, when a user moves from point A to point B, an object that did not obstruct the beamformed direction at point A may obstruct the beamformed direction between at point B. When the beamformed direction between the base station and the UE is obstructed, the SNR of signal transmissions may be reduced, which may lower the quality of service (QoS) experienced by the user.

Some UEs may be only able to receive from one beam (e.g., beamformed direction) at a time such that the spatial diversity of the system may not be exploited by concurrent transmissions via different beams. The present disclosure provides a solution to the issue of dynamic blocking by enabling the base station and the UE to switch between a first beamformed direction and a second beamformed direction at different intervals (e.g., different symbols of a resource block (RB)) to exploit the spatial diversity of the system.

In a first aspect of the disclosure, a first method, a first computer-readable medium, and a first apparatus are provided. The first apparatus may be a base station. The first apparatus may determine a beam configuration for a data transmission, and the beam configuration may include a first beam associated with a first beam direction and a second beam associated with a second beam direction. The first apparatus may transmit signaling that indicates the beam configuration for the data transmission to a UE. The first apparatus may transmit or receive the data transmission based at least in part on the beam configuration, and the data transmission may include at least one code block in an RB. The at least one code block may include a first set of bits in a first set of symbols of the RB and a second set of bits of the at least one code block in a second set of symbols of the RB.

In certain configurations of the first aspect, the signaling indicates a switch in the RB between the first set of symbols including the first set of bits of the at least one code block and the second set of symbols including the second set of bits of the at least one code block. In certain configurations of the first aspect, the signaling includes one or more of downlink control information (DCI) signaling, medium access control (MAC) control element (CE) (MAC-CE) signaling or radio resource control (RRC) signaling, the RRC signaling indicates a beam table for a plurality of beam switch patterns, and the DCI signaling or MAC-CE signaling down selects one of the plurality of beam switch patterns. In certain configurations of the first aspect, the transmitting or receiving the data transmission includes transmitting or receiving the first set of bits via the first beam in the first beam direction in the first set of symbols of the RB, and transmitting or receiving the second set of bits via the second beam in the second beam direction in the second set of symbols of the RB. In certain configurations of the first aspect, the data transmission includes at least one first reference signal communicated via the first beam in the first set of symbols of the RB, and the data transmission includes at least one second reference signal communicated via the second beam in the second set of symbols of the RB. In certain configurations of the first aspect, the at least one first reference signal includes one or more of a first set of demodulation reference signals (DMRSs) or a first set of phase tracking reference signals (PTRSs), and the at least one second reference signal includes one or more of a second set of DMRSs or a second set of PTRSs. In certain configurations of the first aspect, the first apparatus may further determine a first modulation and coding scheme (MCS) for the first beam based at least in part on a channel measurement and a second MCS for the second beam based at least in part on the channel measurement. In certain configurations of the first aspect, the first apparatus may further perform the channel measurement for each of a plurality of beams, and the beam configuration may be determined based at least in part on the channel measurement for each of the plurality of beams. In certain configurations of the first aspect, the signaling includes an indication of the first MCS for the first beam and the second MCS for the second beam. In certain configurations of the first aspect, the first set of bits and the second set of bits of the at least one code block are encoded with a same channel code. In certain configurations of the first aspect, the at least one code block comprises a code block group.

In a second aspect of the disclosure, a second method, a second computer-readable medium, and a second apparatus are provided. The second apparatus may be a UE. The second apparatus may receive, from a base station, signaling that indicates a beam configuration for a data transmission, and the beam configuration may include a first beam associated with a first beam direction and a second beam associated with a second beam direction. The second apparatus may receive or transmit the data transmission based at least in part on the beam configuration. The data transmission may include at least one code block in an RB, and the at least one code block may include a first set of bits in a first set of symbols of the RB and a second set of bits of the at least one code block in a second set of symbols of the RB.

In certain configurations of the second aspect, the signaling indicates a switch in the RB between the first set of symbols including the first set of bits of the at least one code block and the second set of symbols including the second set of bits of the at least one code block. In certain configurations of the second aspect, the signaling includes one or more of DCI signaling, MAC-CE signaling or radio resource control (RRC) signaling, the RRC signaling indicates a beam table for a plurality of beam switch patterns, and the DCI signaling or MAC-CE signaling down selects one of the plurality of beam switch patterns. In certain configurations of the second aspect, the receiving or transmitting the data transmission includes transmitting or receiving the first set of bits via the first beam in the first beam direction in the first set of symbols of the first RB, and transmitting or receiving the second set of bits via the second beam in the second beam direction in the second set of symbols of the RB. In certain configurations of the second aspect, the data transmission includes at least one first reference signal communicated via the first beam in the first set of symbols of the RB, and the data transmission includes at least one second reference signal communicated via the second beam in the second set of symbols of the RB. In certain configurations of the second aspect, the at least one first reference signal includes one or more of a first set of DMRSs or a first set of PTRSs, and the at least one second reference signal includes one or more of a second set of DMRSs or a second set of PTRSs. In certain configurations of the second aspect, the signaling includes an indication of a first MCS for the first beam and a second MCS for the second beam. In certain configurations of the second aspect, the first set of bits and the second set of bits of the at least one code block are encoded with a same channel code. In certain configurations of the second aspect, the at least one code block comprises a code block group.

A network that includes both small cell and macro cells may be known as a heterogeneous network. The base stations <NUM> / UEs <NUM> may use spectrum up to Y MHz (e.g., <NUM>, <NUM>, <NUM>, <NUM>, <NUM>) bandwidth per carrier allocated in a carrier aggregation of up to a total of Yx MHz (x component carriers) used for transmission in each direction. The carriers may or may not be adj acent to each other. Allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or less carriers may be allocated for DL than for UL).

The base station may also be referred to as a gNB, Node B, evolved Node B (eNB), an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), or some other suitable terminology. The base station <NUM> provides an access point to the EPC <NUM> for a UE <NUM>. Examples of UEs <NUM> include a cellular phone, 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, a tablet, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a display, or any other similar functioning device.

Referring again to <FIG>, in certain aspects, a base station <NUM>/<NUM> may determine a beam configuration <NUM> for a data transmission, and the beam configuration <NUM> may include a first beam associated with a first beam direction and a second beam associated with a second beam direction. The base station <NUM>/<NUM> may transmit signaling that indicates the beam configuration <NUM> for the data transmission to a UE <NUM>. Correspondingly, the UE <NUM> may receive, from the base station <NUM>/<NUM>, signaling that indicates the beam configuration <NUM>, including the first beam associated with the first beam direction and the second beam associated with the second beam direction.

The base station <NUM>/<NUM> may then transmit or receive the data transmission based at least in part on the beam configuration <NUM>. The data transmission may include at least one code block in an RB, and the at least one code block may include a first set of bits in a first set of symbols of the RB and a second set of bits of the at least one code block in a second set of symbols of the RB. Accordingly, the UE <NUM> may receive or transmit the data transmission, including the at least one code block in the RB, based at least in part on the beam configuration <NUM>, and the at least one code block may include the first set of bits in the first set of symbols of the RB and the second set of bits of the at least one code block in the second set of symbols of the RB.

<FIG> is a diagram <NUM> illustrating an example of a DL subframe within a <NUM>/NR frame structure. <FIG> is a diagram <NUM> illustrating an example of channels within a DL subframe. <FIG> is a diagram <NUM> illustrating an example of an UL subframe within a <NUM>/NR frame structure. <FIG> is a diagram <NUM> illustrating an example of channels within an UL subframe. In the examples provided by <FIG>, the <NUM>/NR frame structure is assumed to be TDD, with subframe <NUM> a DL subframe and subframe <NUM> an UL subframe. While subframe <NUM> is illustrated as providing just DL and subframe <NUM> is illustrated as providing just UL, any particular subframe may be split into different subsets that provide both UL and DL. Note that the description infra applies also to a <NUM>/NR frame structure that is FDD.

For slot configuration <NUM>, different numerologies <NUM> to <NUM> allow for <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> slots, respectively, per subframe. The subcarrier spacing may be equal to <NUM>µ * <NUM> kKz, where µ is the numerology <NUM>-<NUM>. <FIG> provide an example of slot configuration <NUM> with <NUM> symbols per slot and numerology <NUM> with <NUM> slots per subframe.

Each time slot includes a RB (also referred to as physical RBs (PRBs)) that extends <NUM> consecutive subcarriers.

As illustrated in <FIG>, some of the REs carry reference (pilot) signals (RS) for the UE (indicated as R). The RS may include demodulation RS (DMRS) and channel state information reference signals (CSI-RS) for channel estimation at the UE.

<FIG> illustrates an example of various channels within a DL subframe of a frame. The physical control format indicator channel (PCFICH) is within symbol <NUM> of slot <NUM>, and carries a control format indicator (CFI) that indicates whether the physical downlink control channel (PDCCH) occupies <NUM>, <NUM>, or <NUM> symbols (<FIG> illustrates a PDCCH that occupies <NUM> symbols). The PDCCH carries downlink control information (DCI) within one or more control channel elements (CCEs), each CCE including nine RE groups (REGs), each REG including four consecutive REs in an OFDM symbol. A UE may be configured with a UE-specific enhanced PDCCH (ePDCCH) that also carries DCI. The ePDCCH may have <NUM>, <NUM>, or <NUM> RB pairs (<FIG> shows two RB pairs, each subset including one RB pair). The physical hybrid automatic repeat request (ARQ) (HARQ) indicator channel (PHICH) is also within symbol <NUM> of slot <NUM> and carries the HARQ indicator (HI) that indicates HARQ acknowledgement (ACK) / negative ACK (NACK) feedback based on the physical uplink shared channel (PUSCH). The primary synchronization channel (PSCH) may be within symbol <NUM> of slot <NUM> within subframes <NUM> and <NUM> of a frame. The PSCH carries a primary synchronization signal (PSS) that is used by a UE <NUM> to determine subframe/symbol timing and a physical layer identity. The secondary synchronization channel (SSCH) may be within symbol <NUM> of slot <NUM> within subframes <NUM> and <NUM> of a frame. The SSCH carries a secondary synchronization signal (SSS) that is used by a UE to determine a physical layer cell identity group number and radio frame timing. Based on the PCI, the UE can determine the locations of the aforementioned DL-RS. The physical broadcast channel (PBCH), which carries a master information block (MIB), may be logically grouped with the PSCH and SSCH to form a synchronization signal (SS)/PBCH block. The MIB provides a number of RBs in the DL system bandwidth, a PHICH configuration, and a system frame number (SFN).

As illustrated in <FIG>, some of the REs carry DMRS for channel estimation at the base station. The UE may additionally transmit sounding reference signals (SRS) in the last symbol of a subframe.

<FIG> illustrates an example of various channels within an UL subframe of a frame. A physical random access channel (PRACH) may be within one or more subframes within a frame based on the PRACH configuration. The PRACH may include six consecutive RB pairs within a subframe. The PRACH allows the UE to perform initial system access and achieve UL synchronization. A physical uplink control channel (PUCCH) may be located on edges of the UL system bandwidth.

<FIG> is a diagram <NUM> illustrating a base station <NUM> in communication with a UE <NUM>. Referring to <FIG>, the base station <NUM> may transmit a beamformed signal to the UE <NUM> in one or more of the directions 402a, 402b, 402c, 402d, 402e, 402f, <NUM>, <NUM>. The UE <NUM> may receive the beamformed signal from the base station <NUM> in one or more receive directions 404a, 404b, 404c, 404d. The UE <NUM> may also transmit a beamformed signal to the base station <NUM> in one or more of the directions 404a-404d. The base station <NUM> may receive the beamformed signal from the UE <NUM> in one or more of the receive directions 402a-<NUM>.

<FIG> illustrates a wireless communication system <NUM> in accordance with certain aspects of the present disclosure. The wireless communication system <NUM> may include a base station <NUM> and a UE <NUM>. The base station may correspond to, e.g., base station <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>'. The UE may correspond to, e.g., UE <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>'.

A <NUM> NR communication system (e.g., a mmW communication system) may use directional beamforming to increase the SNR of signals transmitted between the base station <NUM> and the UE <NUM>. One potential drawback from using directional beamforming is that a beamformed channel may be sensitive to dynamic blocking.

For example, when a user <NUM> moves from point A to point B, an object that did not obstruct the beamformed direction (e.g., direction 502a and direction 504a) at point A may obstruct the beamformed direction between at point B. Further, when the user's <NUM> fingers block one or more of the subarrays located at the UE <NUM>, the beamformed direction between the base station <NUM> and the UE <NUM> may also be obstructed. Additionally, when the user <NUM> rotates the UE <NUM>, the polarization between base station <NUM> and the UE <NUM> may be mismatched. When the beamformed direction between the base station <NUM> and the UE <NUM> is obstructed and/or when the polarization is mismatched, the SNR of signal transmissions may be reduced, which may lower the quality of service (QoS) experienced by the user <NUM>.

As seen in <FIG>, the first beamformed direction 502a, 504a is blocked by the user <NUM>, and hence, transmissions sent in the first beamformed direction 502a, 504a may have a reduced SNR as compared to when the first beamformed direction 502a, 504a is unblocked. However, the second beamformed direction 502b, 504b may be unblocked, and hence, may provide an increased SNR as compared to the first beamformed direction 502a, 504a.

Some UEs may be only able to receive from one beam (e.g., beamformed direction) at a time (e.g. some UEs may have a single RF chain and/or scheduling conflicts may other RF chains of some UEs to be unavailable) such that the spatial diversity of the system may not be exploited by concurrent transmissions via the different beams. The present disclosure may provide an approach to address dynamic blocking of a beamformed direction, e.g., by enabling the base station <NUM> and the UE <NUM> to transmit or receive a first set of bits of a block using the first beamformed direction 502a, 504a in a first set of symbols of a first RB and a second set of bits of a block using the second beamformed direction 502b, 504b in a second set of symbols of the first RB, e.g., as described below in connection with <FIG>, <FIG>, and <FIG>.

<FIG> illustrates a wireless communication system <NUM>, <NUM> in accordance with certain aspects of the present disclosure. The wireless communication system <NUM> may include a base station <NUM> and a UE <NUM>. The base station may correspond to, e.g., base station <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>'. The UE may correspond to, e.g., UE <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>'.

At time <NUM> (e.g., a first set of symbols of a first RB), the base station <NUM> and the UE <NUM> may communicate with one another using the second beamformed direction 502b, 504b (e.g., a first beam at a first time). At time <NUM> (e.g., a second set of symbols of a first RB), the base station <NUM> and the UE <NUM> may communicate with one another using the first beamformed direction 502a, 504a (e.g., a second beam at a second time). By switching between the beamformed directions, transmissions may be sent and/or received from multiple beams in a time-division multiplexing (TDM) manner.

The base station <NUM> may transmit or receive a data transmission <NUM> to or from the UE <NUM> using the first beamformed direction 502a, 504a and using the second beamformed direction 502b, 504b. The data transmission <NUM> may include at least one TB <NUM>. The TB <NUM> may be transmitted in one transmission time interval (TTI) without spatial multiplexing. The TB <NUM> may be split into a plurality of code blocks (CBs) 538a, 538b, 538c, 538d, 538n-<NUM>, 538n, and a subset of the set of CBs may be grouped into CB groups (CBGs) 540a, 540b, <NUM>. In various aspects, a PDSCH and/or PUSCH transmission may be scheduled based on at least one of CBGs 540a, 540b, <NUM>. The TB <NUM> may include a CRC <NUM> and, when split into the CBs 538a, 538b, 538c, 538d, 538n-<NUM>, 538n, each of the CBs 538a, 538b, 538c, 538d, 538n-<NUM>, 538n may be associated with a respective CRC 542a, 542b, 542c, 542d, 542n-<NUM>, 542n.

Channel coding may be applied to information bits in <NUM> NR to achieve redundancy in the coded bits for robustness. For example, assume the base station <NUM> has a data transmission <NUM> that includes at least one of the CBs 538a, 538b, 538c, 538d, 538n-<NUM>, 538n to send to the UE <NUM>. Each of the bits in the at least one CB 538a, 538b, 538c, 538d, 538n-<NUM>, 538n may be coded using the same channel code (e.g., Turbo code (TC), tail biting convolutional code (TBCC), low density parity check code (LDPC), ultra-reliable low-latency code (URLLC), polar codes, etc.).

A first set of bits of the TB <NUM> may be transmitted by the base station <NUM> using the second beamformed direction 502b, 504b at time <NUM> (e.g., a first set of symbols of a first RB). For example, the first set of bits may include all or a portion of the bits of one of the CBs 538a, 538b, 538c, 538d, 538n-<NUM>, 538n. Similarly, a second set of bits of the TB <NUM> may be transmitted by the base station <NUM> using the first beamformed direction 502a, 504a at time <NUM> (e.g., a second set of symbols of the first RB) (although time <NUM> and time <NUM> may be transposed). In some aspects, time <NUM> may be subsequent to time <NUM>; however, time <NUM> and time <NUM> may be interleaved in other aspects (e.g., symbols of time <NUM> and symbols of time <NUM> may alternatingly occur).

By transmitting a coded block in this manner, even if one beamformed direction is blocked and the corresponding coded bits are lost, if the redundancy is sufficient in the channel coding, the UE <NUM> may still decode the full information from the TB <NUM> when the second set of bits are received via the first beamformed direction 502a, 504a at time <NUM>.

In order to implement the techniques of the present disclosure, the base station <NUM> may identify the beamformed directions and time intervals that may be used to transmit different sets of bits of the code block. In other words, the base station <NUM> may identify a beam configuration for a data transmission that includes the at least one code block of coded bits where coded bits from at least one code block are transmitted via different beamformed channels at different time intervals. The beam configuration may be determined based at least in part on channel measurements performed for a plurality of beamforming directions. The beams may be selected for the beam configuration based on an SNR threshold, signal strength threshold, etc..

Upon determining the beam configuration, the base station <NUM> may send signaling (e.g., DCI signaling, MAC control element (MAC-CE) signaling, or RRC signaling) to the UE <NUM> to indicate the beamformed directions and the associated time intervals (e.g., the beam switch time) that will be used for communications. In certain configurations, the signaling may include first signaling that identifies a list of candidate beam switch patterns in one transmission, and second signaling that activates one or more patterns from the table for use in communicating with the base station <NUM>. The beam switch pattern may include a sequence of timing and switch directions for the beam switches. For example, in the first signaling a list of two candidate beam switch patterns are indicated: a first beam switch pattern, where the beam switch is performed in every even number indexed symbols by switching from the first beam direction associated with a first transmission configuration indicator (TCI) to a second beam direction associated with a second TCI, and in every odd number indexed symbol by switching from the second beam direction associated with the second TCI to the first beam direction associated with the first TCI; and a second beam switch pattern defines the same beam switching time with an opposite beam switch direction. In the second signaling, either the first or the second candidate beam switch pattern is down-selected.

The UE <NUM> may use the beam configuration to receive the first set of bits of the TB <NUM> via the second beamformed direction 502b, 504b at time <NUM>, and the second set of bits of the TB <NUM> via the first beamformed direction 502a, 504a at time <NUM>. Additionally and/or alternatively, the UE <NUM> may use the beam configuration to transmit a first set of bits of the TB <NUM> via the second beamformed direction 502b, 504b at time <NUM>, and the second set of bits of the TB <NUM> via the first beamformed direction 502a, 504a at time <NUM>.

Reference signals (e.g., DMRS and/or phase tracking reference signals (PTRS)) may be included in each beamformed channel such that channel estimation and/or phase tracking may be performed by the receiving device, e.g., as described below in connection with <FIG> and <FIG>.

The signaling that indicates the beam configuration may also indicate a modulation and coding scheme (MCS) associated with each of the beamformed directions used for sending the data transmission. For example, the signaling may indicate that MCS <NUM> is used for the first beamformed direction 502a, 504a and that MCS <NUM> is used for the second beamformed direction 502b, 504b. The TB size may be determined based at least in part on the MCSs indicated for each beamformed direction by the signaling.

<FIG> illustrates a call flow diagram of a method <NUM> of wireless communication, in accordance with certain aspects of the present disclosure. The method <NUM> of wireless communication may be performed by the base station <NUM> and the UE <NUM>.

Initially, the base station <NUM> may transmit a plurality of signals on a plurality of beams to the UE <NUM>. For example, the base station <NUM> may transmit a respective reference signals on each of a set of transmit beams of the base station <NUM>. The UE <NUM> may receive a respective reference signal on each of a set of receive beams of the UE <NUM>. Similarly, the UE <NUM> may transmit a respective reference signal on each of a set of transmit beams of the UE <NUM>, and the base station <NUM> may receive a respective reference signal on each of a set of receive beams of the base station <NUM>. Referring to <FIG>, for example, the base station <NUM> / UE <NUM> may perform beam training to determine the best receive and transmit directions for each of the base station <NUM> / UE <NUM>.

In the illustrated aspect, the base station <NUM> may perform channel measurements <NUM> for each reference signal transmitted or received on each of the set of receive beams. For example, the base station <NUM> may measure a value associated with channel quality (e.g., an SNR, a reference signal received power (RSRP), or another channel quality metric) for each reference signal received on each of the set of receive beams of the base station <NUM>. In another example, the base station <NUM> may receive information from the UE <NUM> indicating a set of values corresponding to a set transmit beams of the base station <NUM>, such as one or more CQIs. The base station <NUM> may compare each value to a threshold and/or to one another in order to determine the "best" beams corresponding to the "best" measured values (e.g., highest SNRs).

The base station <NUM> may select a subset of the set of beams based on the channel measurements <NUM>. For example, the base station <NUM> may select a subset of beams that meet an SNR threshold, signal strength threshold, etc. For example, referring to <FIG>, the base station <NUM> may select the first beamformed direction 502a, 504a and select the second beamformed direction 502b, 504b based on the channel measurements <NUM>. Further based on the channel measurements <NUM>, the base station <NUM> may determine a first MCS for the first beamformed direction 502a, 504a and determine a second MCS for the second beamformed direction 502b, 504b. In certain aspects, a TB size (e.g., a size of the TB <NUM>) of a data transmission (e.g., the data transmission <NUM>) to be transmitted or received using the first beamformed direction 502a, 504a and using the second beamformed direction 502b, 504b may be selected based at least in part on the first MCS and the second MCS. For example, referring to <FIG>, the base station <NUM> may determine that MCS <NUM> may be used for the first beamformed direction 502a, 504a and that MCS <NUM> may be used for the second beamformed direction 502b, 504b.

The base station <NUM> may determine a beam configuration <NUM> based on the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b. The beam configuration <NUM> may be used for a data transmission that includes at least one CB (e.g., at least one of the CBs 538a, 538b, 538c, 538d, 538n-<NUM>, 538n) in a first RB <NUM> (e.g., a PRB). In certain configurations, the at least one CB may include a first set of bits 556a and a second set of bits 556b, which may be encoded with a same channel code (e.g., TC, TBCC, LDPC, URLLC, polar codes, etc.). The at least one CB, including the first set of bits 556a and the second set of bits 556b, may include a TB (e.g., the TB <NUM>), which may be transmitted in one TTI without spatial multiplexing. The TB may be divided into multiple CBs, and the same channel coding may be applied to each CB. A number of CBs may be grouped into a CBG (e.g., a CBG 540a, 540b, <NUM>), and a PDSCH and/or PUSCH transmission may be scheduled based on the CBG.

In addition, the beam configuration may include the first beamformed direction 502a, 504a that is used to communicate the first set of bits of the at least one CB and the second beamformed direction 502b, 504b in a second beam direction that is used to communicate the second set of bits of the at least one CB. In some aspects, the base station <NUM> may determine that the first set of bits 556a and the second set of bits 556b are to be time-division multiplexed in the first RB <NUM>. That is, the base station <NUM> may determine that the first set of bits 556a are to be transmitted in a first set of symbols 582a in the first RB <NUM>, and the base station <NUM> may determine that the second set of bits 556b are to be transmitted in a second set of symbols 582b in the first RB <NUM>. The first set of symbols 582a and the second set of symbols 582b may be contiguous or non-contiguous (e.g., interleaved).

The base station <NUM> may transmit signaling that indicates the beam configuration <NUM> for the data transmission to the UE <NUM>. In certain aspects, the signaling may indicate a switch in the first RB <NUM> between the first set of symbols 582a in which the first set of bits 556a of the at least one CB is communicated using the first beamformed direction 502a, 504a and the second set of symbols 582b in which the second set of bits 556b of the at least one CB is communicated using the second beamformed direction 502b, 504b. In various aspects, the base station <NUM> may signal the beam configuration <NUM> in one or more of DCI signaling, MAC-CE signaling, and/or RRC signaling. For example, the base station <NUM> may use RRC signaling to indicate a beam table for a plurality of beam switch patterns, and the base station <NUM> may use DCI signaling or MAC-CE signaling to indicate a selection of one of the plurality of beam switch patterns (e.g., a selection of a pattern in which the first beamformed direction 502a, 504a is used in the first set of symbols 582a and the second beamformed direction 502b, 504b is used in the second set of symbols 582b). Further, the base station <NUM> may include, in the signaling of the beam configuration <NUM>, an indication of the first MCS (e.g., MCS <NUM>) for the first beamformed direction 502a, 504a and the second MCS (e.g., MCS <NUM>) for the second beamformed direction 502b, 504b. In certain aspects, the base station <NUM> may determine a TB size of associated with the transmission of the first set of bits 556a and the second set of bits 556b based at least in part on the first MCS and the second MCS.

Based on the beam configuration <NUM>, the base station <NUM> may transmit a data transmission in the first RB <NUM> including the first set of bits 556a and the second set of bits 556b. Specifically, the base station <NUM> may transmit the first set of bits 556a of the at least one CB in the first set of symbols 582a of the first RB <NUM> using the first beamformed direction 502a, 504a, and the base station <NUM> may transmit the second set of bits 556b of the at least one CB in the second set of symbols 582b of the first RB <NUM> using the second beamformed direction 502b, 504b. The base station <NUM> may switch from using the first beamformed direction 502a, 504a to using the second beamformed direction 502b, 504b according to a time indicated in the beam configuration <NUM>. In some aspects, the data transmission may include at least one first reference signal (e.g., at least one DMRS, at least one PTRS) communicated via the first beamformed direction 502a, 504a in the first set of symbols 582a, and the data transmission may further include at least one second reference signal (e.g., at least one DMRS, at least one PTRS) communicated via the second beamformed direction 502b, 504b in the second set of symbols 582b.

The UE <NUM> may receive the first set of bits 556a of the at least one CB in the first set of symbols 582a of the first RB <NUM> using the first beamformed direction 502a, 504a. Further, the UE <NUM> may receive the second set of bits 556b of the at least one CB in the second set of symbols 582b of the first RB using the second beamformed direction 502b, 504b. The UE <NUM> may switch between the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b in order to receive the first and second sets of bits 556a, 556b of the at least one CB in the first and second sets of symbols 582a, 582b based on information indicating a switch between the first set of symbols 582a and the second set of symbols 582b included in the beam configuration <NUM>. Accordingly, the UE <NUM> may receive the at least one CB, including the first and second sets of bits 556a, 556b, in the first RB <NUM> by switching between using the first beamformed direction 502a, 504a for the first set of symbols 582a and using the second beamformed direction 502b, 504b for the second set of symbols 582b.

While <FIG> illustrates data transmission by the base station <NUM> to the UE <NUM>, a similar procedure may be implemented for data transmission by the UE <NUM> to the base station <NUM>. For example, the UE <NUM> may transmit the first set of bits 556a of the at least one CB in the first set of symbols 582a of the first RB <NUM> using the first beamformed direction 502a, 504a. Further, the UE <NUM> may transmit the second set of bits 556b of the at least one CB in the second set of symbols 582b of the first RB using the second beamformed direction 502b, 504b. The UE <NUM> may switch between the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b in order to transmit the first and second sets of bits 556a, 556b of the at least one CB in the first and second sets of symbols 582a, 582b based on information indicating a switch between the first set of symbols 582a and the second set of symbols 582b included in the beam configuration <NUM>. Accordingly, the UE <NUM> may transmit the at least one CB, including the first and second sets of bits 556a, 556b, in the first RB <NUM> by switching between using the first beamformed direction 502a, 504a for the first set of symbols 582a and using the second beamformed direction 502b, 504b for the second set of symbols 582b.

<FIG> illustrates a resource mapping <NUM> for a block (e.g., a PRB, the first RB <NUM>) in accordance with certain aspects of the present disclosure. In the example illustrated in <FIG>, the bits of the block are mapped to symbols <NUM>-<NUM> in the time domain and twelve tones in the frequency domain. In certain configurations, the bits of the block may be mapped to different symbols before being mapped to the tones. The resource mapping <NUM> may be used, e.g., by the base station <NUM> and the UE <NUM> of <FIG> and <FIG> for communications by switching between the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b. The resource mapping <NUM> illustrated in <FIG> is for downlink communications. However, the resource mapping <NUM> may be for uplink communications or for both uplink / downlink communications without departing from the scope of the present disclosure.

Symbol <NUM> may be used for transmitting control data via a PDCCH <NUM> for a first beamformed direction 502a, 504a, and symbol <NUM> may be used for communicating control data via a second PDCCH <NUM> for the second beamformed direction 502b, 504b. For example, symbol <NUM> may be included in the first set of symbols 582a, and symbol <NUM> may be included in the second set of symbols 582b. The DMRS <NUM> for the first beamformed direction 502a, 504a may be mapped to symbol <NUM>. The PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and transmitted by the base station <NUM> via a PDSCH associated with the first beamformed direction 502a, 504a. Referring to <FIG>, the first set of symbols 582a may include the symbol <NUM> in which the DMRS <NUM> is transmitted using the first beamformed direction 502a, 504a. Additionally, the first set of symbols 582a may include the PDSCH bits <NUM> in which the PDSCH is transmitted using the first beamformed direction 502a, 504a.

The DMRS <NUM> for the second beamformed direction 502b, 504b may be mapped to symbol <NUM>. The PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and transmitted by the base station <NUM> via the PDSCH associated with the second beamformed direction 502b, 504b. Referring to <FIG>, the second set of symbols 582b may include the symbol <NUM> in which the DMRS <NUM> is transmitted using the second beamformed direction 502b, 504b. Additionally, the second set of symbols 582b may include the PDSCH bits <NUM> in which the PDSCH is transmitted using the second beamformed direction 502b, 504b.

The UE <NUM> may switch between the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b in order to receive the different sets of coded bits of the block in the first set of symbols 582a and the second set of symbols 582b in the first RB <NUM>.

<FIG> illustrates a resource mapping <NUM> in accordance with certain aspects of the present disclosure. In the example illustrated in <FIG>, the bits of the block are mapped to symbols <NUM>-<NUM> in the time domain and twelve tones in the frequency domain. In certain configurations, the bits of the block may be mapped to different symbols before being mapped to the tones. The resource mapping <NUM> may be used, e.g., by the base station <NUM> and the UE <NUM> from <FIG> for communications by switching between the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b. The resource mapping <NUM> illustrated in <FIG> is for downlink communications. However, the resource mapping <NUM> may be for uplink communications or for both uplink / downlink communications without departing from the scope of the present disclosure.

Symbol <NUM> may be used for transmitting control data via a PDCCH <NUM> for a first beamformed direction 502a, 504a, and symbol <NUM> may be used for communicating control data via a second PDCCH <NUM> for the second beamformed direction 502b, 504b. The DMRS <NUM> for the first beamformed direction 502a, 504a may be mapped to symbol <NUM>, and the DMRS <NUM> for the second beamformed direction 502b, 504b may be mapped to symbol <NUM>. The PDSCH bits <NUM> of the block may be mapped to symbols <NUM>, <NUM>, <NUM>, <NUM>, and <NUM>, and transmitted by the base station <NUM> via a PDSCH associated with the first beamformed direction 502a, 504a at the respective time intervals associated with symbols <NUM>, <NUM>, <NUM>, <NUM>, and <NUM>. For example, referring to <FIG>, the first set of symbols 582a may include the symbol <NUM> in which the DMRS <NUM> is transmitted using the first beamformed direction 502a, 504a. Additionally, the first set of symbols 582a may include the symbols <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> in which the PDSCH bits <NUM> are transmitted using the first beamformed direction 502a, 504a.

The PDSCH bits <NUM> of the block may be mapped to symbols <NUM>, <NUM>, <NUM>, <NUM>, and <NUM>, and transmitted by the base station <NUM> via the PDSCH associated with the second beamformed direction 502b, 504b at the respective time intervals associated with symbols <NUM>, <NUM>, <NUM>, <NUM>, and <NUM>. The UE <NUM> may switch between the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b in order to receive the different sets of coded bits of the block. For example, referring to <FIG>, the second set of symbols 582b may include the symbol <NUM> in which the DMRS <NUM> is transmitted using the second beamformed direction 502b, 504b. Additionally, the second set of symbols 582b may include the symbols <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> in which the PDSCH bits <NUM> are transmitted using the second beamformed direction 502b, 504b.

<FIG> is a flowchart <NUM> of a method of wireless communication. The method may be performed by a base station (e.g., base station <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>'). In <FIG>, optional operations are indicated with dashed lines.

At <NUM>, the base station may perform a channel measurement for each of a plurality of beams. For example, the base station may transmit or receive a respective reference signal using each of a set of beams, and the base station may determine a measurement associated with channel quality (e.g., SNR, RSRP, etc.) based on each reference signal. Each measurement may correspond with a beam on which a respective reference signal is received, and the base station may determine a set of beams having the "best" or highest measurements. In certain configurations, a beam configuration may be determined based at least in part on the channel measurement for each of the plurality of beams. For example, referring to <FIG>, the base station <NUM> / UE <NUM> may perform beam training to determine the best receive and transmit directions for each of the base station <NUM> / UE <NUM>. For example, referring to <FIG>, the base station <NUM> may perform the channel measurements <NUM> in order to select the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b.

At <NUM>, the base station may determine a first MCS for the first beam based at least in part on the channel measurement and a second MCS for the second beam based at least in part on the channel measurement. For example, the base station may determine a first MCS corresponding to a first measurement associated with the first beam, and the base station may select the determined first MCS for the first beam. Similarly, the base station may determine a second MCS corresponding to a second measurement associated with the second beam, and the base station may select the determined second MCS for the second beam. In certain aspects, a TB size of the data transmission may be selected based at least in part on the first MCS and the second MCS. For example, referring to <FIG>, the base station <NUM> may determine that MCS <NUM> may be used for the first beamformed direction 502a, 504a and that MCS <NUM> may be used for the second beamformed direction 502b, 504b.

At <NUM>, the base station may determine a beam configuration for a data transmission, and the beam configuration may include a first beam associated with a first beam direction and a second beam associated with a second beam direction. The data transmission may include at least one code block in a first RB. In certain configurations, the at least one code block may include a first set of bits and a second set of bits. In certain other aspects, the beam configuration may include a first beam in a first beam direction that is used to communicate the first set of bits of the at least one code block in a first set of symbols of the first RB and a second beam in a second beam direction that is used to communicate the second set of bits of the at least one code block in a second set of symbols of the first RB. In certain other configurations, the first set of bits and the second set of bits of the at least one code block may be encoded with a same channel code. In certain other aspects, the at least one code block may comprise a code block group. For example, referring to <FIG>, the base station <NUM> may determine beam configuration <NUM> based at least in part on channel measurements <NUM> performed for a plurality of beamforming directions. The beams selected for the beam configuration may be beams that meet an SNR threshold, signal strength threshold, etc. Each of the bits in the block may be coded using the same channel code (e.g., TC, TBCC, LDPC, URLLC, polar codes, etc.). In certain configurations, the block may include a TB. One TB may be transmitted in one TTI without spatial multiplexing. The TB may be divided into multiple CBs, and the same channel coding may be applied to each CB. A number of CBs may be grouped into a CBG, and a PDSCH and/or PUSCH transmission may be scheduled based on the CBG.

At <NUM>, the base station may transmit signaling that indicates the beam configuration for the data transmission to a UE. In certain aspects, the signaling may indicate a switch in the first RB between the first set of symbols in which the first set of bits of the at least one code block is communicated using the first beam and the second set of symbols in which the second set of bits of the at least one code block is communicated using the second beam. In certain aspects, the signaling may include one or more of DCI signaling, MAC-CE signaling or RRC signaling. In certain other aspects, the RRC signaling may indicate a beam table for a plurality of beam switch patterns. In certain other aspects, the DCI signaling or MAC-CE signaling down selects one of the plurality of beam switch patterns. In certain other aspects, the signaling may include an indication of the first MCS for the first beam and the second MCS for the second beam. In certain aspects, a TB size of the data transmission may be selected based at least in part on the first MCS and the second MCS. For example, referring to <FIG>, upon determining the beam configuration <NUM>, the base station <NUM> may send signaling (e.g., DCI signaling or RRC signaling) to the UE <NUM> to indicate the beamformed directions and the associated time intervals (e.g., first set of symbols 582a and the second set of symbols 582b of the first RB <NUM>) that will be used for communications between the base station <NUM> and the UE <NUM>. In certain configurations, the signaling may include first signaling that identifies a table of beam switching patterns, and second signaling that activates one or more patterns from the table for use in communicating with the base station <NUM>.

At <NUM>, the base station may transmit or receive the data transmission based at least in part on the beam configuration. The data transmission may include the at least one code block in the first RB, and the at least one code block may include the first set of bits in the first set of symbols of the RB and the second set of bits of the at least one code block in the second set of symbols of the first RB.

In certain aspects, the data transmission may include at least one first reference signal communicated via the first beam. In certain other aspects, the at least one first reference signal includes one or more of a first set of DMRSs or a first set of PTRSs. In certain other aspects, the data transmission may include at least one second reference signal communicated via the second beam. In certain other aspects, the at least one second reference signal may include one or more of a second set of DMRSs or a second set of PTRSs.

For example, referring to <FIG>, the base station <NUM> may transmit or receive the first set of bits 556a in the first set of symbols 582a of the first RB <NUM>, and the base station may transmit or receive the second set of bits 556b in the second set of symbols 582b of the first RB <NUM>. Referring to <FIG>, the DMRS <NUM> (or PTRS) for the first beamformed direction 502a, 504a may be mapped to symbol <NUM>. The PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and transmitted by the base station <NUM> via a PDSCH associated with the first beamformed direction 502a, 504a in the first set of symbols 582a of the first RB <NUM>. The DMRS <NUM> (or PTRS) for the second beamformed direction 502b, 504b may be mapped to symbol <NUM>. The PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and transmitted by the base station <NUM> via the PDSCH associated with the second beamformed direction 502b, 504b in the second set of symbols 582b of the first RB <NUM>. The UE <NUM> may switch in the first RB <NUM> between the first set of symbols 582a in which the PDSCH bits <NUM> are communicated using the first beamformed direction 502a, 504a and the second set of symbols 582b in which the PDSCH bits <NUM> are communicated using the second beamformed direction 502b, 504b in order to receive the different sets of coded bits of the block.

At <NUM>, the base station transmit or receive the data transmission in the first RB based at least in part on the beam configuration by transmitting or receiving the first set of bits via the first beam in the first beam direction in the first set of symbols of the first RB. For example, referring to <FIG>, the base station <NUM> may transmit or receive the first set of bits 556a in the first RB <NUM> based at least in part on the beam configuration <NUM> by transmitting or receiving the first set of bits 556a via the first beamformed direction 502a, 504a in the first set of symbols 582a of the first RB <NUM>. Referring to <FIG>, the PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and transmitted by the base station <NUM> via a PDSCH associated with the first beamformed direction 502a, 504a.

At <NUM>, the base station transmit or receive the data transmission in the first RB based at least in part on the beam configuration by transmitting or receiving the second set of bits via the second beam in the second beam direction in the second set of symbols of the first RB. For example, referring to <FIG>, the base station <NUM> may transmit or receive the second set of bits 556b in the first RB <NUM> based at least in part on the beam configuration <NUM> by transmitting or receiving the second set of bits 556b via the second beamformed direction 502b, 504b in the second set of symbols 582b of the first RB <NUM>. Referring to <FIG>, the PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and transmitted by the base station <NUM> via the PDSCH associated with the second beamformed direction 502b, 504b.

<FIG> is a conceptual data flow diagram <NUM> illustrating the data flow between different means/components in an exemplary apparatus <NUM>. The apparatus may be a base station (e.g., base station <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>') in communication with a UE <NUM> (e.g., UE <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>'). The apparatus includes a reception component <NUM>, a channel measurement component <NUM>, an MCS component <NUM>, a beam configuration component <NUM>, a signaling component <NUM>, a block encoder / decoder component <NUM>, and a transmission component <NUM>.

The channel measurement component <NUM> may be configured to perform a channel measurement for each of a plurality of beams. In certain configurations, a beam configuration may be determined based at least in part on the channel measurement for each of the plurality of beams. The channel measurement component <NUM> may be configured to send information associated with the channel measurements to one or more of the MCS component <NUM> and/or the beam configuration component <NUM>.

The MCS component <NUM> may be configured to determine a first MCS for the first beam based at least in part on the channel measurement and a second MCS for the second beam based at least in part on the channel measurement. In certain aspects, a TB size of the data transmission may be selected based at least in part on the first MCS and the second MCS. The MCS component <NUM> may be configured to send information associated with the MCS(s) to the signaling component <NUM>.

The beam configuration component <NUM> may be configured to determine a beam configuration for a data transmission that includes at least one code block in a first RB. In certain configurations, the at least one code block may include a first set of bits and a second set of bits. In certain other aspects, the beam configuration may include a first beam in a first beam direction that is used to communicate the first set of bits of the at least one code block in a first set of symbols of the first RB and a second beam in a second beam direction that is used to communicate the second set of bits of the at least one code block in a second set of symbols of the first RB. In certain other configurations, the first set of bits and the second set of bits of the at least one code block may be encoded with a same channel code. In certain other aspects, the at least one code block may comprise a code block group. The beam configuration may be determined based at least in part on the channel measurement information received from the channel measurement component <NUM>. The beam configuration component <NUM> may be configured to send information associated with the beam configuration to the signaling component <NUM>.

The signaling component <NUM> may be configured to generate signaling that indicates the beam configuration for the data transmission to a UE <NUM>. In certain aspects, the signaling may indicate a switch in the first RB between the first set of symbols including the first set of bits of the at least one code block and the second set of symbols including the second set of bits of the at least one code block. In certain aspects, the signaling may include one or more of DCI signaling, MAC-CE signaling or RRC signaling. In certain other aspects, the RRC signaling may indicate a beam table for a plurality of beam switch patterns. In certain other aspects, the DCI signaling or MAC-CE signaling down selects one of the plurality of beam switch patterns.

In certain other aspects, the signaling may include an indication of the first MCS for the first beam and the second MCS for the second beam. In certain aspects, a TB size of the data transmission may be selected based at least in part on the first MCS and the second MCS. The signaling component <NUM> may be configured to send the signal to the transmission component <NUM>, and the transmission component <NUM> may be configured to transmit signaling that indicates the beam configuration for the data transmission to the UE <NUM>.

The block encoder / decoder component <NUM> may be configured to generate a data transmission that includes at least one coded block. The coded block may include a first set of bits and a second set of bits. In certain aspects, the coded block may include on or more of DMRS and/or PTRS for each of the beams. The block encoder / decoder component <NUM> may be configured to send the coded block to the transmission component <NUM>.

The transmission component <NUM> and/or reception component <NUM> may be configured to transmit or receive the data transmission based at least in part on the beam configuration. The data transmission may include the at least one code block in a first RB, and the at least one code block may include the first set of bits in a first set of symbols of the first RB and the second set of bits of the at least one code block in the second set of symbols of the first RB.

In certain aspects, the data transmission may include at least one first reference signal communicated via the first beam. In certain other aspects, the at least one first reference signal includes one or more of a first set of DMRSs or a first set of PTRSs. In certain other aspects, the data transmission may include at least one second reference signal communicated via the second beam. In certain other aspects, the at least one second reference signal may include one or more of a second set of DMRSs or a second set of PTRSs. When the reception component <NUM> receives the data transmission, the reception component <NUM> may send the data transmission to the block encoder / decoder component <NUM> for processing.

The transmission component <NUM> and/or reception component <NUM> may be configured to transmit or receive the data transmission based at least in part on the beam configuration by transmitting or receiving the first set of bits via the first beam in the first beam direction in the first set of symbols of the first RB. The transmission component <NUM> and/or reception component <NUM> may be configured to transmit or receive the data transmission based at least in part on the beam configuration by transmitting or receiving the second set of bits via the second beam in the second beam direction in the second set of symbols of the first RB.

<FIG> is a diagram <NUM> illustrating an example of a hardware implementation for an apparatus <NUM>' employing a processing system <NUM>. The processing system <NUM> may be implemented with a bus architecture, represented generally by the bus <NUM>. The bus <NUM> may include any number of interconnecting buses and bridges depending on the specific application of the processing system <NUM> and the overall design constraints. The bus <NUM> links together various circuits including one or more processors and/or hardware components, represented by the processor <NUM>, the components <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM> and the computer-readable medium / memory <NUM>. The bus <NUM> may also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further.

The processing system <NUM> may be coupled to a transceiver <NUM>. The transceiver <NUM> is coupled to one or more antennas <NUM>. The transceiver <NUM> provides a means for communicating with various other apparatus over a transmission medium. The transceiver <NUM> receives a signal from the one or more antennas <NUM>, extracts information from the received signal, and provides the extracted information to the processing system <NUM>, specifically the reception component <NUM>. In addition, the transceiver <NUM> receives information from the processing system <NUM>, specifically the transmission component <NUM>, and based on the received information, generates a signal to be applied to the one or more antennas <NUM>. The processing system <NUM> includes a processor <NUM> coupled to a computer-readable medium / memory <NUM>. The processor <NUM> is responsible for general processing, including the execution of software stored on the computer-readable medium / memory <NUM>. The software, when executed by the processor <NUM>, causes the processing system <NUM> to perform the various functions described supra for any particular apparatus. The computer-readable medium / memory <NUM> may also be used for storing data that is manipulated by the processor <NUM> when executing software. The processing system <NUM> further includes at least one of the components <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>. The components may be software components running in the processor <NUM>, resident/stored in the computer readable medium / memory <NUM>, one or more hardware components coupled to the processor <NUM>, or some combination thereof. The processing system <NUM> may be a component of the base station <NUM> and may include the memory <NUM> and/or at least one of the TX processor <NUM>, the RX processor <NUM>, and the controller/processor <NUM>.

In certain configurations, the apparatus <NUM>/<NUM>' for wireless communication may include means for determining a beam configuration for a data transmission, and the beam configuration may include a first beam associated with a first beam direction and a second beam associated with a second beam direction. The apparatus <NUM>/<NUM>' may include means for transmitting signaling that indicates the beam configuration for the data transmission to a UE. The apparatus <NUM>/<NUM>' may include means for transmitting or receiving the data transmission based at least in part on the beam configuration - the data transmission may include at least one code block in an RB, and the at least one code block may include a first set of bits in a first set of symbols of the RB and a second set of bits of the at least one code block in a second set of symbols of the RB. In an aspect, the signaling indicates a switch in the first RB between the first set of symbols including the first set of bits of the at least one code block and the second set of symbols including the second set of bits of the at least one code block. In an aspect, the signaling includes one or more of DCI signaling, MAC-CE signaling or RRC signaling, and the RRC signaling indicates a beam table for a plurality of beam switch patterns, and the DCI signaling or MAC-CE signaling down selects one of the plurality of beam switch patterns. In an aspect, the means for transmitting or receiving the data transmission is configured to transmit or receive the first set of bits via the first beam in the first beam direction in the first set of symbols of the RB, and transmit or receive the second set of bits via the second beam in the second beam direction in the second set of symbols of the RB. In an aspect, the data transmission includes at least one first reference signal communicated via the first beam in the first set of symbols of the RB, and the data transmission includes at least one second reference signal communicated via the second beam in the second set of symbols of the RB. In an aspect, the at least one first reference signal includes one or more of a first set of DMRSs or a first set of PTRSs, and the at least one second reference signal includes one or more of a second set of DMRSs or a second set of PTRSs. In an aspect, the apparatus <NUM>/<NUM>' includes means for determining a first MCS for the first beam based at least in part on a channel measurement and a second MCS for the second beam based at least in part on the channel measurement. In an aspect, the apparatus <NUM>/<NUM>' includes means for performing the channel measurement for each of a plurality of beams, the beam configuration being determined based at least in part on the channel measurement for each of the plurality of beams. In an aspect, the signaling includes an indication of the first MCS for the first beam and the second MCS for the second beam. In an aspect, the first set of bits and the second set of bits of the at least one code block are encoded with a same channel code. In an aspect, the at least one code block comprises a code block group.

<FIG> is a flowchart <NUM> of a method of wireless communication. The method may be performed by a UE (e.g., UE <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>'). In <FIG>, optional operations are indicated with dashed lines.

At <NUM>, the UE may receive, from a base station, signaling that indicates a beam configuration for a data transmission, and the data transmission may include a first beam associated with a first beam direction and a second beam associated with a second beam direction. The data transmission may include at least one code block in a first RB. In certain aspects, the at least one code block including a first set of bits and a second set of bits. In certain other aspects, the beam configuration may include a first beam in a first beam direction that is used to communicate the first set of bits of the at least one code block in a first set of symbols of the first RB and a second beam in a second beam direction that is used to communicate the second set of bits of the at least one code block in a second set of symbols of the first RB. In certain aspects, the signaling may indicate a switch in the first RB between the first set of symbols including the first set of bits of the at least one code block and the second set of symbols including the second set of bits of the at least one code block. In certain aspects, the signaling may include one or more of DCI signaling, MAC-CE signaling or RRC signaling. In certain other aspects, the RRC signaling may indicate a beam table for a plurality of beam switch patterns. In certain other aspects, the DCI signaling or MAC-CE signaling down selects one of the plurality of beam switch patterns.

In certain other aspects, the signaling may include an indication of the first MCS for the first beam and the second MCS for the second beam. In certain aspects, a TB size of the data transmission may be selected based at least in part on the first MCS and the second MCS. For example, referring to <FIG>, upon determining the beam configuration <NUM>, the base station <NUM> may send signaling (e.g., DCI signaling, MAC-CE signaling, or RRC signaling) to the UE <NUM> to indicate the beam configuration <NUM> (including the first beamformed direction 502a, 504a and the second beamformed direction 502b, 504b) and the associated time intervals (e.g., a switch in the first RB between a first set of symbols during which the first beamformed direction 502a, 504a is used and a second set of symbols during which the second beamformed direction 502b, 504b is used) that will be used for communications between the base station <NUM> and the UE <NUM>. In certain configurations, the signaling may include first signaling that identifies a table of beam patterns, and second signaling that activates one or more beams from the table for use in communicating with the base station <NUM>.

At <NUM>, the UE may receive or transmit the data transmission based at least in part on the beam configuration. The data transmission may include the at least one code block in a first RB, and the at least one code block may include a first set of bits in the first set of symbols of the first RB and the second set of bits of the at least one code block in the second set of symbols of the first RB. In certain aspects, the data transmission may include at least one first reference signal communicated via the first beam. In certain other aspects, the at least one first reference signal includes one or more of a first set of DMRSs or a first set of PTRSs. In certain other aspects, the data transmission may include at least one second reference signal communicated via the second beam. In certain other aspects, the at least one second reference signal may include one or more of a second set of DMRSs or a second set of PTRSs.

For example, referring to <FIG>, the UE <NUM> may transmit or receive the first set of bits 556a in the first set of symbols 582a of the first RB <NUM>, and the UE <NUM> may transmit or receive the second set of bits 556b in the second set of symbols 582b of the first RB <NUM>. Referring to <FIG>, the DMRS <NUM> (or PTRS) for the first beamformed direction 502a, 504a may be mapped to symbol <NUM>. The PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and received by the UE <NUM> via a PDSCH associated with the first beamformed direction 502a, 504a. The DMRS <NUM> (or PTRS) for the second beamformed direction 502b, 504b may be mapped to symbol <NUM>. The PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and received by the UE <NUM> via the PDSCH associated with the second beamformed direction 502b, 504b. The UE <NUM> may switch between the first beamformed direction 502a, 504a in the first set of symbols 582a of the first RB <NUM> and the second beamformed direction 502b, 504b in the second set of symbols 582b of the first RB <NUM> in order to receive the different sets of coded bits of the block.

At <NUM>, the UE may receive or transmit the data transmission based at least in part on the beam configuration by receiving or transmitting the first set of bits via the first beam in the first beam direction in the first set of symbols of the first RB. For example, referring to <FIG>, the UE <NUM> may transmit or receive the first set of bits 556a in the first RB <NUM> based at least in part on the beam configuration <NUM> by transmitting or receiving the first set of bits 556a via the first beamformed direction 502a, 504a in the first set of symbols 582a of the first RB <NUM>. Referring to <FIG>, the PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and received by the UE <NUM> via a PDSCH associated with the first beamformed direction 502a, 504a.

At <NUM>, the UE may receive or transmit the data transmission based at least in part on the beam configuration by receiving or transmitting the second set of bits via the second beam in the second beam direction in the second set of symbols of the first RB. Referring to <FIG>, the UE <NUM> may transmit or receive the second set of bits 556b in the first RB <NUM> based at least in part on the beam configuration <NUM> by transmitting or receiving the second set of bits 556b via the second beamformed direction 502b, 504b in the second set of symbols 582b of the first RB <NUM>. For example, referring to <FIG>, the PDSCH bits <NUM> of the block may be mapped to symbols <NUM>-<NUM>, and received by the UE <NUM> via the PDSCH associated with the second beamformed direction 502b, 504b.

<FIG> is a conceptual data flow diagram <NUM> illustrating the data flow between different means/components in an exemplary apparatus <NUM>. The apparatus may be a UE (e.g., UE <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>') in communication with a base station <NUM> (e.g., base station <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, the apparatus <NUM>/<NUM>'). The apparatus may include a reception component <NUM>, a beam configuration component <NUM>, a block encoder / decoder component <NUM>, and a transmission component <NUM>.

The reception component <NUM> may be configured to receive, from the base station <NUM>, signaling that indicates a beam configuration for a data transmission that includes at least one code block in a first RB. In certain aspects, the at least one code block may include a first set of bits and a second set of bits. In certain other aspects, the beam configuration may include a first beam in a first beam direction that is used to communicate the first set of bits of the at least one code block in a first set of symbols of the first RB and a second beam in a second beam direction that is used to communicate the second set of bits of the at least one code block in a second set of symbols of the first RB. In certain aspects, the signaling may indicate a switch in the first RB between the first set of symbols including the first set of bits of the at least one code block and the second set of symbols including the second set of bits of the at least one code block. In certain aspects, the signaling may include one or more of DCI signaling, MAC-CE signaling or RRC signaling. In certain other aspects, the RRC signaling may indicate a beam table for a plurality of beam switch patterns. In certain other aspects, the DCI signaling or MAC-CE signaling down selects one of the plurality of beam switch patterns. In certain other aspects, the signaling may include an indication of the first MCS for the first beam and the second MCS for the second beam. In certain aspects, a TB size of the data transmission may be selected based at least in part on the first MCS and the second MCS. The reception component <NUM> may be configured to send the signaling to the beam configuration component <NUM> that may maintain information about the beam configuration. The beam configuration component <NUM> may be configured to send information associated with the beam configuration to one or more of the reception component <NUM> and/or the transmission component <NUM>.

The block encoder / decoder component <NUM> may be configured to generated a coded block that includes a first set of symbols and a second set of symbols. The coded block may be sent to the transmission component <NUM>.

The reception component <NUM> and/or transmission component <NUM> may be configured to receive or transmit the data transmission based at least in part on the beam configuration - the data transmission may include the at least one code block in the first RB, and the at least one code block may include the first set of bits in the first set of symbols of the first RB and the second set of bits of the at least one code block in the second set of symbols of the first RB. In certain aspects, the data transmission may include at least one first reference signal communicated via the first beam. In certain other aspects, the at least one first reference signal includes one or more of a first set of DMRSs or a first set of PTRSs. In certain other aspects, the data transmission may include at least one second reference signal communicated via the second beam. In certain other aspects, the at least one second reference signal may include one or more of a second set of DMRSs or a second set of PTRSs.

The reception component <NUM> and/or transmission component <NUM> may be configured to receive or transmit the data transmission in the first RB based at least in part on the beam configuration by receiving or transmitting the first set of bits via the first beam in the first beam direction in the first set of symbols of the first RB. The reception component <NUM> and/or transmission component <NUM> may be configured to receive or transmit the data transmission based at least in part on the beam configuration by receiving or transmitting the second set of bits via the second beam in the second beam direction in the second set of symbols of the first RB. The reception component <NUM> may be configured to send the data transmission to the block encoder / decoder component <NUM> for processing.

<FIG> is a diagram <NUM> illustrating an example of a hardware implementation for an apparatus <NUM>' employing a processing system <NUM>. The processing system <NUM> may be implemented with a bus architecture, represented generally by the bus <NUM>. The bus <NUM> may include any number of interconnecting buses and bridges depending on the specific application of the processing system <NUM> and the overall design constraints. The bus <NUM> links together various circuits including one or more processors and/or hardware components, represented by the processor <NUM>, the components <NUM>, <NUM>, <NUM>, <NUM> and the computer-readable medium / memory <NUM>. The bus <NUM> may also link various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further.

The processing system <NUM> may be coupled to a transceiver <NUM>. The transceiver <NUM> is coupled to one or more antennas <NUM>. The transceiver <NUM> provides a means for communicating with various other apparatus over a transmission medium. The transceiver <NUM> receives a signal from the one or more antennas <NUM>, extracts information from the received signal, and provides the extracted information to the processing system <NUM>, specifically the reception component <NUM>. In addition, the transceiver <NUM> receives information from the processing system <NUM>, specifically the transmission component <NUM>, and based on the received information, generates a signal to be applied to the one or more antennas <NUM>. The processing system <NUM> includes a processor <NUM> coupled to a computer-readable medium / memory <NUM>. The processor <NUM> is responsible for general processing, including the execution of software stored on the computer-readable medium / memory <NUM>. The software, when executed by the processor <NUM>, causes the processing system <NUM> to perform the various functions described supra for any particular apparatus. The computer-readable medium / memory <NUM> may also be used for storing data that is manipulated by the processor <NUM> when executing software. The processing system <NUM> further includes at least one of the components <NUM>, <NUM>, <NUM>, <NUM>. The components may be software components running in the processor <NUM>, resident/stored in the computer readable medium / memory <NUM>, one or more hardware components coupled to the processor <NUM>, or some combination thereof. The processing system <NUM> may be a component of the UE <NUM> and may include the memory <NUM> and/or at least one of the TX processor <NUM>, the RX processor <NUM>, and the controller/processor <NUM>.

In certain configurations, the apparatus <NUM>/<NUM>' for wireless communication may include means for receiving, from a base station, signaling that indicates a beam configuration for a data transmission, and the beam configuration may include a first beam associated with a first beam direction and a second beam associated with a second beam direction. The apparatus <NUM>/<NUM>' may include means for receiving or transmitting the data transmission based at least in part on the beam configuration - the data transmission may include at least one code block in an RB, and the at least one code block may include a first set of bits in a first set of symbols of the RB and a second set of bits of the at least one code block in a second set of symbols of the RB. In an aspect, the signaling indicates a switch in the first RB between the first set of symbols including the first set of bits of the at least one code block and the second set of symbols including the second set of bits of the at least one code block. In an aspect, the signaling includes one or more of DCI signaling, MAC-CE signaling or RRC signaling, and the RRC signaling indicates a beam table for a plurality of beam switch patterns, and the DCI signaling or MAC-CE signaling down selects one of the plurality of beam switch patterns. In an aspect, the means for receiving or transmitting the data transmission is configured to transmit or receive the first set of bits via the first beam in the first beam direction in the first set of symbols of the RB; and transmit or receive the second set of bits via the second beam in the second beam direction in the second set of symbols of the RB. In an aspect, the data transmission includes at least one first reference signal communicated via the first beam in the first set of symbols of the RB, and the data transmission includes at least one second reference signal communicated via the second beam in the second set of symbols of the RB. In an aspect, the at least one first reference signal includes one or more of a first set of DMRSs or a first set of PTRSs, and the at least one second reference signal includes one or more of a second set of DMRSs or a second set of PTRSs. In an aspect, the signaling includes an indication of a first MCS for the first beam and a second MCS for the second beam. In an aspect, the first set of bits and the second set of bits of the at least one code block are encoded with a same channel code. In an aspect, the at least one code block comprises a code block group.

Claim 1:
A method of wireless communication of a base station, comprising:
determining (<NUM>) a beam configuration for a data transmission, the beam configuration including a first beam associated with a first beam direction and a second beam associated with a second beam direction;
transmitting (<NUM>) signaling that indicates the beam configuration for the data transmission to a user equipment, UE; and
transmitting (<NUM>) or receiving the data transmission based at least in part on the beam configuration, the data transmission including at least one code block (<NUM>) in a resource block (<NUM>), RB, wherein the at least one code block includes a first set of bits in a first set of symbols of the RB and a second set of bits of the at least one code block in a second set of different symbols of the RB; and wherein the transmitting or receiving the data transmission comprises:
transmitting or receiving (<NUM>) the first set of bits via the first beam in the first beam direction in the first set of symbols of the RB; and
transmitting or receiving (<NUM>) the second set of bits via the second beam in the second beam direction in the second set of symbols of the RB.