Physical downlink shared channel mapping type for physical downlink shared channel repetition in one time slot

Abstract

In general, various aspects of the present disclosure relate to wireless communications. In some aspects, a user equipment (UE) may receive a downlink control information (DCI) communication scheduling a physical downlink shared channel (PDSCH) including a first transmission occasion and a second transmission occasion; and determining a mapping type for the first transmission occasion and a mapping type for the second transmission occasion based at least in part on receiving a DCI communication scheduling a PDSCH including the first transmission occasion and the second transmission occasion. Numerous other aspects are provided.

Description

[0001] This application is a divisional application of the application filed on January 14, 2021, with application number 202180009538.7 and invention title "Physical Downlink Shared Channel Mapping Type for Physical Downlink Shared Channel Repetition in a Time Slot".

[0002] Cross-reference to related applications

[0003] This patent application claims priority to the following applications: U.S. Provisional Patent Application No. 62 / 962,666, filed January 17, 2020, entitled “PHYSICAL DOWNLINK SHARED CHANNEL MAPPING TYPE FOR PHYSICAL DOWNLINK SHARED CHANNEL REPETITION IN ONE SLOT”; and U.S. Non-Provisional Patent Application No. 17 / 248,181, filed January 13, 2021, entitled “PHYSICAL DOWNLINK SHARED CHANNEL MAPPING TYPE FOR PHYSICAL DOWNLINK SHARED CHANNEL REPETITION IN ONE SLOT”; both of which are expressly incorporated herein by reference. Technical Field

[0004] In summary, various aspects of this disclosure relate to wireless communications, and to techniques and apparatus for PDSCH mapping types that repeat for Physical Downlink Shared Channel (PDSCH) in a time slot. Background Technology

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / improved LTE is an enhanced set of the Universal Mobile Telecommunications System (UMTS) mobile standard released by the 3rd Generation Partnership Project (3GPP).

[0006] A wireless communication network may include several base stations (BSs) capable of supporting communication for multiple user equipments (UEs). UEs can communicate with the BS via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, and an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmit / Receive Point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0007] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different user equipment to communicate at the city, national, regional, and even global levels. NR (which can also be called 5G) is an enhancement set of the LTE mobile standard released by 3GPP. NR is designed to better support mobile broadband internet access by improving spectrum efficiency, reducing costs, improving service, utilizing new spectrum, and using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation. However, with the continued growth in demand for mobile broadband access, there is a need for further improvements to NR and LTE technologies. Preferably, these improvements should be applied to other multiple access technologies and the telecommunications standards that adopt them. Summary of the Invention

[0008] In some aspects, a wireless communication method performed by a UE may include: receiving downlink control information (DCI) communications that schedule a PDSCH including a first transmission timing and a second transmission timing; and determining a mapping type for the first transmission timing and a mapping type for the second transmission timing based at least in part on receiving the DCI communications that schedule a PDSCH including a first transmission timing and a second transmission timing.

[0009] In some aspects, a UE for wireless communication may include a memory and one or more processors coupled to the memory. For example, the one or more processors may be operatively, electrically, communicatively, or otherwise coupled to the memory. The memory may include instructions executable by the one or more processors to cause the UE to: receive DCI communication that schedules a PDSCH including a first transmission timing and a second transmission timing; and determine a mapping type for the first transmission timing and a mapping type for the second transmission timing based at least in part on receiving the DCI communication that schedules the PDSCH including the first transmission timing and the second transmission timing.

[0010] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of the UE, the one or more instructions may cause the UE to: receive DCI communication that schedules a PDSCH including a first transmission timing and a second transmission timing; and determine a mapping type for the first transmission timing and a mapping type for the second transmission timing, at least in part based on receiving the DCI communication that schedules the PDSCH including the first transmission timing and the second transmission timing.

[0011] In some aspects, an apparatus for wireless communication may include: a unit for receiving DCI communication that schedules a PDSCH including a first transmission timing and a second transmission timing; and a unit for determining a mapping type for the first transmission timing and a mapping type for the second transmission timing based at least in part on receiving the DCI communication that schedules the PDSCH including the first transmission timing and the second transmission timing.

[0012] The aspects generally include, as fully described herein with reference to the accompanying drawings and description, and as illustrated by the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment and / or processing systems.

[0013] The foregoing has provided a fairly extensive overview of the features and technical advantages of examples according to this disclosure in order to better understand the following specific embodiments. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose of this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics (both their organization and manner of operation) of the concepts disclosed herein and their associated advantages will be better understood when considered in conjunction with the accompanying drawings, based on the following description. Each drawing in the accompanying drawings is provided for illustrative and descriptive purposes and is not intended to limit the scope of the claims. Attached Figure Description

[0014] To gain a more detailed understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly summarized above, can be made with reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not intended to limit its scope, as the description may acknowledge other equally valid aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0015] Figure 1 This is a block diagram illustrating examples of wireless communication networks according to various aspects of this disclosure.

[0016] Figure 2 This is a block diagram illustrating an example of communication between a base station and a UE in a wireless communication network according to various aspects of this disclosure.

[0017] Figure 3 This is a schematic diagram illustrating an example of a time slot centered on the following downlink (DL) according to various aspects of this disclosure.

[0018] Figure 4 This is a schematic diagram illustrating an example of an uplink (UL)-centric time slot according to various aspects of this disclosure.

[0019] Figures 5A-5D This is a schematic diagram illustrating an example of how the PDSCH mapping type is determined in relation to various aspects of this disclosure for PDSCH repetition in a time slot.

[0020] Figure 6 This is a schematic diagram illustrating, for example, an example process performed by a user device according to various aspects of this disclosure. Detailed Implementation

[0021] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of the disclosure herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, an apparatus or method may be implemented using any number of the aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods practiced using structures, functions, or structures and functions other than or different from the aspects of the disclosure set forth herein. It should be understood that any aspect of this disclosure herein may be embodied by one or more elements of the claims.

[0022] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed embodiments and illustrated in the accompanying drawings through various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system.

[0023] It should be noted that although the aspects may be described herein using terms commonly associated with 3G and / or 4G wireless technologies, the aspects of this disclosure can be applied to communication systems based on other generations, such as 5G and later communication systems (including NR technology).

[0024] Figure 1 This is a schematic diagram illustrating a wireless network 100 in which various aspects of this disclosure can be practiced. The wireless network 100 can be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 can include several BS110s (shown as BS110a, BS110b, BS110c, and BS110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and can also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0025] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UEs with service subscriptions. A picocell can cover a relatively small geographic area and allow unrestricted access by UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a residential area) and allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed User Group (CSG)). A BS used for macrocells can be called a macro BS. A BS used for picocells can be called a pico BS. A BS used for femtocells can be called a femto BS or a home BS. Figure 1 In the examples shown, BS110a can be a macro BS for macro cell 102a, BS110b can be a pico BS for pico cell 102b, and BS110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably herein.

[0026] In some respects, the cell may not be stationary, and the geographical area of ​​the cell may be movable depending on the location of the mobile BS. In some respects, BSs may interconnect with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 using various types of backhaul interfaces (e.g., direct physical connection, virtual network, etc.) of any suitable transport network.

[0027] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and transmit the data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions to other UEs. Figure 1 In the example shown, relay station 110d can communicate with macro BS110a and UE 120d to facilitate communication between BS110a and UE 120d. A relay station can also be referred to as a relay BS, relay base station, repeater, etc.

[0028] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0029] Network controller 130 can be coupled to a group of base stations (BSs) and can provide coordination and control for these BSs. Network controller 130 can communicate with the BSs via backhaul. BSs can also communicate with each other directly or indirectly via wireless or wired backhaul.

[0030] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, user unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet device, camera, gaming device, netbook, smartbook, ultrabook, medical device or apparatus, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), entertainment device (e.g., music or video device, or satellite radio unit, etc.), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0031] Some UEs can be considered Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., capable of communicating with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes can provide connectivity to or to a network (e.g., a wide area network such as the Internet or a cellular network) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices, and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 can be housed within a housing that contains the components of UE 120, such as processor components, memory components, etc.

[0032] Typically, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific Radio Access Technology (RAT) and can operate on one or more frequencies. A RAT can also be called a wireless technology, air interface, etc. A frequency can also be called a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5GRAT networks can be deployed.

[0033] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary for communication with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, mesh networks, etc.). In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations that are described elsewhere herein as being performed by base station 110.

[0034] As indicated above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 As described.

[0035] Figure 2 Base station 110 and UE 120 are shown (which may be in Figure 1 The block diagram of design 200 (a base station 110 and a UE 120) is shown. Base station 110 may be equipped with T antennas 234a to 234t, and UE 120 may be equipped with R antennas 252a to 252r, wherein typically, T≥1 and R≥1.

[0036] At base station 110, transmitting processor 220 can receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from each UE, process (e.g., code and modulate) the data for each UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmitting processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI), etc.) and control information (e.g., CQI requests, permission, upper-layer signaling, etc.), and provide overhead symbols and control symbols. Transmitting processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding, if applicable) on data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can (e.g., for OFDM, etc.) process its corresponding output symbol stream to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively. Synchronization signals can be generated using position coding, according to various aspects described in more detail below, to transmit additional information.

[0037] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations, and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The channel processor can determine the Received Reference Signal Power (RSRP), Received Signal Strength Indicator (RSSI), Received Reference Signal Quality (RSRQ), Channel Quality Indicator (CQI), etc. In some aspects, one or more components of the UE 120 may be included in the housing.

[0038] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmitting processor 264 can also generate reference symbols for one or more reference signals. Symbols from the transmitting processor 264 can be pre-encoded (if applicable) by the TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to base station 110. At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiving processor 238 to obtain decoded data and control information transmitted by UE 120. The receiver processor 238 can provide decoded data to the data sink 239 and decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicates with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0039] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2Any other component may perform one or more techniques associated with determining the PDSCH mapping type for PDSCH repetition in a time slot, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can perform, for example Figure 6 Process 600 and / or other processes as described herein, or instructions for such processes. Figure 6 The operation of process 600 and / or other processes as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, one or more instructions may perform, when executed by one or more processors of base station 110 and / or UE 120, for example... Figure 6 Process 600 and / or other processes as described herein, or instructions such as Figure 6 The operation of process 600 and / or other processes as described herein. Scheduler 246 can schedule the UE to perform data transmission on the downlink and / or uplink.

[0040] In some aspects, UE 120 may include: a unit for receiving DCI communication that schedules a PDSCH including a first transmission timing and a second transmission timing; a unit for determining a mapping type for the first transmission timing and a mapping type for the second transmission timing based at least in part on receiving the DCI communication that schedules the PDSCH including the first transmission timing and the second transmission timing; and so on. In some aspects, such a unit may include a combination of Figure 2 The UE 120 described includes one or more components, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.

[0041] As indicated above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 As described.

[0042] Figure 3This is a schematic diagram 300 illustrating an example of a DL-centered time slot or wireless communication structure. The DL-centered time slot may include a control section 302. The control section 302 may exist in the initial or beginning portion of the DL-centered time slot. The control section 302 may include various scheduling and / or control information corresponding to the various portions of the DL-centered time slot. In some configurations, the control section 302 may be a Physical DL Control Channel (PDCCH), as in... Figure 3 As indicated in the document. In some aspects, control section 302 may include conventional PDCCH information, shortened PDCCH (sPDCCH) information, control format indicator (CFI) values ​​(e.g., carried on the physical control format indicator channel (PCFICH), one or more grants (e.g., downlink grant, uplink grant, etc.).

[0043] The DL-centric time slot may also include a DL data portion 304. The DL data portion 304 may sometimes be referred to as the payload of the DL-centric time slot. The DL data portion 304 may include communication resources for transmitting DL data from a scheduling entity (e.g., a UE or BS) to a subordinate entity (e.g., a UE). In some configurations, the DL data portion 304 may be a Physical DL Shared Channel (PDSCH).

[0044] The time slot centered on DL may also include a UL short burst portion 306. The UL short burst portion 306 may sometimes be referred to as a UL burst, UL burst portion, common UL burst, short burst, UL short burst, common UL short burst, common UL short burst portion, and / or various other suitable terms. In some aspects, the UL short burst portion 306 may include one or more reference signals. Additionally or alternatively, the UL short burst portion 306 may include feedback information corresponding to various other portions of the time slot centered on DL. For example, the UL short burst portion 306 may include feedback information corresponding to the control portion 302 and / or the data portion 304. Non-limiting examples of information that may be included in the UL short burst portion 306 include ACK signals (e.g., Physical Uplink Control Channel (PUCCH) Acknowledgment (ACK), Physical Uplink Shared Channel (PUSCH) Acknowledgment (ACK), Immediate ACK, Negative Acknowledgment (NACK) signals (e.g., PUCCH NACK, PUSCH NACK, Immediate NACK), Scheduling Request (SR), Buffer Status Report (BSR), Hybrid Automatic Repeat Request (HARQ) indicator, Channel State Information (CSI), Channel Quality Indicator (CQI), Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS), PUSCH data, and / or various other suitable types of information. The UL short burst portion 306 may include additional or alternative information, such as information relating to the Random Access Channel (RACH) procedure, scheduling requests, and various other suitable types of information.

[0045] As in Figure 3 As shown, the end of the DL data portion 304 can be temporally separated from the start of the UL short burst portion 306. This temporal separation may sometimes be referred to as a gap, guard period, guard interval, and / or various other suitable terms. This separation provides the time for switching from DL communication (e.g., a receiving operation performed by a subordinate entity (e.g., a UE)) to UL communication (e.g., a transmitting operation performed by a subordinate entity (e.g., a UE)). The foregoing is an example of a DL-centric wireless communication architecture, and alternative architectures with similar characteristics may exist without necessarily departing from the aspects described herein.

[0046] As indicated above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 As described.

[0047] Figure 4 This is a schematic diagram 400 illustrating an example of a UL-centered time slot or wireless communication structure. The UL-centered time slot may include a control section 402. The control section 402 may be present at the beginning or start portion of the UL-centered time slot. Figure 4 The control section 402 in the above reference can be similar to the one described above. Figure 3 The control portion 302 is described. The UL-centric time slot may also include a UL long burst portion 404. The UL long burst portion 404 may sometimes be referred to as the payload of the UL-centric time slot. "UL portion" can refer to communication resources used to transmit UL data from a subordinate entity (e.g., UE) to a scheduling entity (e.g., UE or BS). In some configurations, the control portion 402 may be a physical DL control channel (PDCCH).

[0048] As in Figure 4 As shown, the end of control section 402 can be time-separated from the start of UL long burst section 404. This time separation may sometimes be referred to as a gap, protection period, protection interval, and / or various other suitable terms. This separation provides time for switching from DL communication (e.g., a receive operation performed by a scheduling entity) to UL communication (e.g., a transmit operation performed by a scheduling entity).

[0049] The UL-centric time slot can also include UL short burst portion 406. Figure 4 The UL short burst portion 406 in the text can be similar to the above reference. Figure 3 The UL short burst portion 306 is described, and may include the above-mentioned combination. Figure 3 Any information described herein. The preceding text is an example of a UL-centric wireless communication structure, and alternative structures with similar characteristics may exist without necessarily departing from the aspects described herein.

[0050] In one example, a wireless communication structure (e.g., a frame) may include both UL-centered time slots and DL-centered time slots. In this example, the ratio of UL-centered to DL-centered time slots in a frame can be dynamically adjusted, at least in part, based on the amount of UL data and DL data transmitted. For example, if more UL data is present, the ratio of UL-centered to DL-centered time slots can be increased. Conversely, if more DL data is present, the ratio can be decreased.

[0051] As indicated above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 As described.

[0052] In some wireless communication systems, the Time Domain Resource Allocation (TDRA) associated with scheduling the PDSCH is indicated via the DCI. Typically, the TDRA field points to a TDRA table entry that identifies the mapping type associated with the PDSCH (e.g., mapping type A, mapping type B, etc.), the slot offset K0 (e.g., the number of slots from the slot where the DCI is received to the slot where the PDSCH is scheduled), the start symbol S of the PDSCH, and the allocation length L of the PDSCH. The start symbol S and the allocation length L can be functions of the mapping type and can be indicated individually or jointly (e.g., using a start and length indicator value (SLIV)). The length of the TDRA field can be between 0 and 4 bits (e.g., depending on the TDRA table to be used by the UE).

[0053] The mapping type indicates how the PDSCH is mapped within the time slot carrying it. For example, mapping type A indicates that the first DMRS symbol of the PDSCH is on the third symbol (symbol 2) or the fourth symbol (symbol 3) of the time slot, and that the start symbol of the PDSCH can be any of the first four symbols of the time slot (symbol 0, symbol 1, symbol 2, or symbol 3). For mapping type A, a bit in the Master Information Block (MIB) indicates whether the first DMRS symbol of the PDSCH is the third or fourth symbol, and the start symbol of the PDSCH is indicated by the TDRA, as described above. As another example, mapping type B indicates that the first DMRS symbol of the PDSCH is the first symbol of the PDSCH, and that the start symbol of the PDSCH can be any symbol in the time slot except the last symbol of the time slot. For mapping type B, the start symbol of the PDSCH is indicated by the TDRA, as described above.

[0054] Additionally, in some cases, the UE can be configured to implement a scheme associated with time-division multiplexing of multiple PDSCH transmission opportunities within a single time slot. According to such a scheme, a single DCI is used to schedule PDSCHs including a first transmission opportunity and a second transmission opportunity within a single time slot (e.g., such that at least one repetition of a PDSCH transmission occurs in the same time slot). Here, the first and second transmission opportunities are associated with different Transmission Configuration Indicator (TCI) states within a single time slot, and with the use of non-overlapping time resource allocation. For example, in multi-transmitter-receiver point (multi-TRP) scenarios supporting high reliability and / or low latency communication (e.g., Ultra-Reliable Low Latency Communication (URLLC)), such a scheme may be advantageous, such as the so-called "Scheme 3" (also known as TDMScheme A).

[0055] Based on the scheme associated with time-division multiplexing of multiple PDSCH transmission opportunities within a single time slot, a single DCI communication can be used when scheduling PDSCHs that include a first transmission opportunity and a second transmission opportunity. For example, the TCI field of the DCI communication can indicate two TCI states. Here, the UE can determine that the TCI field indicates two TCI states, and therefore can determine that the PDSCHs scheduled via DCI communication include a first transmission opportunity and a second transmission opportunity. In some cases, the start symbol of the second transmission opportunity has a symbol offset K relative to the last symbol of the first transmission opportunity. The value of K can be configured, for example, by Radio Resource Control (RRC) signaling, or set to a value of 0 if not configured. The start symbol of the first transmission opportunity and the length of the first transmission opportunity are indicated by the TDRA field (e.g., as described above, such as using SLIV), and the length of the second transmission opportunity is assumed to be the same as the length of the first transmission opportunity.

[0056] As noted above, when implementing a scheme associated with time-division multiplexing of multiple PDSCH transmission opportunities within a single time slot (e.g., TDMScheme A), the TDRA field of DCI communication can indicate rows of a TDRA table, where each row indicates a value for the time slot offset K0, the start symbol S of the PDSCH, the allocation length L of the PDSCH symbol (e.g., using SLIV alone or in combination), and the mapping type (e.g., mapping type A, mapping type B, etc.). Here, the UE can be configured to apply the start symbol S, as indicated by the TDRA field, to the first transmission opportunity, and the allocation length L to both the first and second transmission opportunities. However, the UE should be configured to interpret the mapping type indicated by the TDRA field in a manner that allows the UE to determine the location of the DMRS symbol for the first and second transmission opportunities within the time slot, enabling the UE to attempt to receive both the first and second transmission opportunities within the time slot.

[0057] Some aspects described herein provide techniques and apparatus associated with determining the PDSCH mapping type for PDSCH repetition in a time slot. In some aspects, the UE may receive DCI communication scheduling PDSCH including a first transmission timing and a second transmission timing, and may determine the mapping type for the first transmission timing and the mapping type for the second transmission timing based at least in part on the received DCI communication. Additional details are described below.

[0058] Figures 5A-5D This is a schematic diagram illustrating an example of how the PDSCH mapping type for PDSCH repetition in a time slot is determined according to various aspects of this disclosure. Figures 5A-5DIn the example shown, the UE (e.g., UE 120) is configured to implement a scheme associated with time-division multiplexing of multiple transmission opportunities within a single time slot. For example, the UE may be configured to implement TDMSchemeA (e.g., based at least in part on the RRC parameter RepSchemeEnabler being set to "TDMSchemeA").

[0059] As in Figure 5A As shown by reference numeral 505 in the accompanying drawings, the UE can receive DCI communication that schedules a PDSCH including a first transmission timing and a second transmission timing. For example, the UE can receive DCI communication in which the TCI field indicates two TCI states (e.g., a first TCI state and a second TCI state). Here, the UE can determine the DCI communication scheduling of a PDSCH including a first transmission timing and a second transmission timing based at least in part on the two TCI states indicated by the TCI field. That is, the TCI field indicating the two TCI states can serve as an indication that the scheduled PDSCH includes a first transmission timing and a second transmission timing.

[0060] As shown by reference numeral 510 in the attached figure, the UE may determine the mapping type for the first transmission timing and the mapping type for the second transmission timing at least in part based on receiving DCI communications. For example, the UE may determine the mapping type for the first transmission timing and the mapping type for the second transmission timing at least in part based on determining the PDSCH of the DCI communication schedule, which includes the first transmission timing and the second transmission timing.

[0061] In some aspects, the UE may determine the mapping type for the first transmission timing at least in part based on the mapping type indicated by DCI communication, and may determine the mapping type for the second transmission timing at least in part based on a hypothetical mapping type. In such cases, in some aspects, the mapping type indicated by DCI communication may be mapping type A or mapping type B, and the hypothetical mapping type may be mapping type B. Note that in this case, the hypothetical mapping type may be mapping type B because the mapping type for the first transmission timing and the mapping type for the second transmission timing cannot both be mapping type A (e.g., because in such a case, the positions of the first DMRS symbols for the first and second transmission timings would be required to be in adjacent symbols).

[0062] Alternatively, in some aspects, the UE may determine the mapping type for the first transmission timing and the mapping type for the second transmission timing based at least in part on a hypothetical mapping type. In such cases, in some aspects, the hypothetical mapping type may be mapping type B (e.g., because the mapping type for the first transmission timing and the mapping type for the second transmission timing cannot both be mapping type A). In some aspects, if the mapping type indicated by the DCI communication differs from the hypothetical mapping type (e.g., if the mapping type indicated by the TDRA field is mapping type A), the UE may identify an error associated with the DCI communication (because the UE does not expect this) and / or avoid receiving or processing the PDSCH (e.g., the UE may ignore the DCI communication). Alternatively, in some aspects, when the mapping type indicated by the DCI communication differs from the hypothetical mapping type, the UE may receive the PDSCH at least in part based on the hypothetical mapping type instead of the mapping type indicated by the DCI communication (e.g., the UE may ignore the indicated mapping type and receive the PDSCH for both the first and second transmission timings based on mapping type B).

[0063] Alternatively, in some aspects, the UE may determine the mapping type for the second transmission timing at least in part based on the mapping type indicated via DCI communication, and may determine the mapping type for the first transmission timing at least in part based on a hypothetical mapping type. In such a case, in some aspects, the mapping type indicated via DCI communication may be mapping type A or mapping type B, and the hypothetical mapping type may be mapping type B. As noted above, in this case, the hypothetical mapping type is mapping type B because the mapping type for the first transmission timing and the mapping type for the second transmission timing cannot both be mapping type A.

[0064] Alternatively, in some aspects, the UE may determine the mapping type for the first transmission timing based at least in part on a first mapping type indicated via DCI communication, and may determine the mapping type for the second transmission timing based at least in part on a second mapping type indicated via DCI communication. In such a case, the first mapping type indicated via DCI communication may be mapping type A, and the second mapping type indicated via DCI communication may be mapping type B. Alternatively, the first mapping type indicated via DCI communication may be mapping type B, and the second mapping type indicated via DCI communication may be either mapping type A or mapping type B. Note that in this example, the TDRA table may be configured such that each row indicates two mapping types. Therefore, the rows of the TDRA table indicated by the TDRA field of DCI communication may indicate the two mapping types to be applied to the two transmission timings.

[0065] In some aspects, the UE can identify techniques for determining the mapping type for a first transmission timing and the mapping type for a second transmission timing. That is, in some aspects, the UE can identify one of the aforementioned techniques for determining the mapping type for the first and second transmission timings. In some aspects, the UE can identify said techniques and can determine the mapping type for the first and second transmission timings at least in part based on said techniques.

[0066] In some aspects, the UE may identify, at least in part, the technology used to determine the mapping type for the first transmission timing and the mapping type for the second transmission timing based on the configuration received by the UE. For example, the UE may receive, via RRC signaling, a configuration indicating the technology used to determine the mapping type for the first and second transmission timings, and may identify the technology at least in part based on the configuration.

[0067] Alternatively, the UE may identify, at least in part, a technique for determining the mapping type for the first transmission timing and the mapping type for the second transmission timing based on a set of parameters. The parameter set may include, for example, a symbol offset K (e.g., a symbol offset between the first and second transmission timings), the position of the DMRS configuration of the PDSCH (e.g., DMRS-TypeA-Position, which is the position of the DMRS configuration of the PDSCH associated with mapping type A), a start symbol S (the start symbol of the PDSCH), an allocation length L (the length of the first and second transmission timings), etc. Here, the mapping type for the first transmission timing and the mapping type for the second transmission timing may be a function of one or more parameters, and the UE may determine the mapping type for the first and second transmission timings at least in part based on applying the function to one or more parameters.

[0068] As shown by reference numeral 515 in the attached figure, the UE can determine the location of the DMRS for the first transmission timing and the location of the DMRS for the second transmission timing based at least in part on the mapping type for the first transmission timing and the mapping type for the second transmission timing. For example, based at least in part on the mapping type for the first transmission timing and the mapping type for the second transmission timing, the UE can identify the symbol in the time slot that is to carry the DMRS for the first transmission timing, and can identify the symbol in the time slot that is to carry the DMRS for the second transmission timing.

[0069] As indicated by reference numeral 520 in the attached figure, the UE may receive a PDSCH that includes a first transmission opportunity and a second transmission opportunity. For example, based at least in part on determining the location of the DMRS for the first transmission opportunity and the location of the DMRS for the second transmission opportunity, the UE may attempt to receive the first transmission opportunity and the second transmission opportunity within the time slot.

[0070] Figures 5B-5D This is a schematic diagram illustrating various examples of time slots carrying a PDSCH including a first transmission opportunity and a second transmission opportunity. Figures 5B-5D In the diagram, the symbol offset K is 0, the position for mapping type A DMRS is configured as the fourth symbol (symbol 3), two transmission opportunities are scheduled, and black squares indicate the positions of symbols carrying DMRS. Furthermore, gray squares indicate the positions of symbols for the first transmission opportunity, and cross-shaded squares indicate the positions of symbols for the second transmission opportunity. White squares indicate the positions of remaining symbols in the time slot (e.g., not used to carry DMR or PDSCH).

[0071] exist Figure 5B In the example time slot shown, the TDRA field of the DCI communication for the PDSCH, which schedules the first and second transmission opportunities, indicates the start symbol S as the third symbol (S=2) and the allocation length L as four symbols (L=4). Figure 5B As indicated in the document, in one example, the TDRA field can indicate the mapping type A that the UE applies to the first transmission timing. For example, such an indication can be used when the UE determines the mapping type for the first transmission timing based at least in part on the mapping type indicated via DCI communication, and determines the mapping type for the second transmission timing based at least in part on a hypothetical mapping type. In this example, the UE determines the mapping type for the first transmission timing as mapping type A (as indicated by the TDRA field), and determines the mapping type for the second transmission timing as mapping type B (based on the hypothetical mapping type being mapping type B).

[0072] As in Figure 5B As further noted, in another example, the TDRA field can indicate mapping type A and mapping type B ({A, B}). For example, such an indication can be used when the UE needs to determine the mapping type for a first transmission timing based at least in part on a first mapping type indicated via DCI communication, and at least in part on a second mapping type indicated via DCI communication, to determine the mapping type for a second transmission timing. In this example, the UE determines the mapping type for the first transmission timing as mapping type A (as indicated by the TDRA field) and the mapping type for the second transmission timing as mapping type B (as indicated by the TDRA field).

[0073] exist Figure 5C In the example time slot shown, the TDRA field of the DCI communication of the PDSCH, which schedules the first and second transmission opportunities, indicates the start symbol S as the first symbol (S=0) and the allocation length L as three symbols (L=3). Figure 5C As indicated in the example, the TDRA field can indicate the mapping type A that the UE applies to the second transmission timing. For example, such an indication can be used when the UE wants to determine the mapping type for the second transmission timing based at least in part on the mapping type indicated via DCI communication, and at least in part on the mapping type for the first transmission timing based on a hypothetical mapping type. In this example, the UE determines the mapping type for the second transmission timing as mapping type A (as indicated by the TDRA field) and the mapping type for the first transmission timing as mapping type B (based on the hypothetical mapping type being mapping type B).

[0074] exist Figure 5D In the example time slot shown, the TDRA field of the DCI communication of the PDSCH, which schedules the first and second transmission opportunities, indicates the start symbol S as the first symbol (S=2) and the allocation length L as four symbols (L=4). Figure 5D As noted in the document, in one example, the TDRA field can indicate mapping type B. For example, such an indication can be used when the UE needs to determine the mapping type for a first transmission timing and the mapping type for a second transmission timing based at least in part on the assumed mapping type of mapping type B (e.g., when the mapping type indicated by the TDRA field should match the assumed mapping type, or when the mapping type indicated by the TDRA field is to be ignored).

[0075] For example, when the UE needs to determine the mapping type for a first transmission timing based at least in part on the mapping type indicated via DCI communication, and at least in part on the mapping type for a second transmission timing based on a hypothetical mapping type, it can also indicate in... Figure 5D The example time slot is shown. In this example, the UE determines the mapping type for the first transmission opportunity as mapping type B (as indicated by the TDRA field) and the mapping type for the second transmission opportunity as mapping type B (based on the assumption that the mapping type is mapping type B).

[0076] Similarly, for example, when the UE needs to determine the mapping type for the second transmission timing based at least in part on the mapping type indicated via DCI communication, and at least in part on the mapping type for the first transmission timing based on a hypothetical mapping type, it can also indicate in... Figure 5DThe example time slot is shown. In this example, the UE determines the mapping type for the second transmission opportunity as mapping type B (as indicated by the TDRA field), and determines the mapping type for the first transmission opportunity as mapping type B (based on the assumption that the mapping type is mapping type B).

[0077] As indicated above, Figures 5A-5D This is provided as an example. Other examples may differ from the one provided. Figures 5A-5D As described.

[0078] Figure 6 This is a schematic diagram illustrating, for example, an example procedure 600 performed by a UE according to various aspects of this disclosure. Example procedure 600 is an example of an operation performed by a UE (e.g., UE 120, etc.) associated with determining the PDSCH mapping type for PDSCH repetition in a time slot.

[0079] As in Figure 6 As shown, in some aspects, process 600 may include receiving DCI communication of a PDSCH that is scheduled to include a first transmission timing and a second transmission timing (block 610). For example, a UE (e.g., using a receive processor 258, a controller / processor 280, a memory 282, etc.) may receive DCI communication of a PDSCH that is scheduled to include a first transmission timing and a second transmission timing, as described above.

[0080] As in Figure 6 As further shown, in some aspects, process 600 may include: determining a mapping type for the first transmission timing and a mapping type for the second transmission timing based at least in part on receiving DCI communications of the PDSCH that schedule the first transmission timing and the second transmission timing (block 620). For example, the UE (e.g., using receive processor 258, controller / processor 280, memory 282, etc.) may determine the mapping type for the first transmission timing and the mapping type for the second transmission timing based at least in part on receiving DCI communications of the PDSCH that schedule the first transmission timing and the second transmission timing, as described above.

[0081] Process 600 may include additional aspects, such as any single aspect or any combination thereof described below and / or in conjunction with one or more other process descriptions elsewhere herein.

[0082] In a first aspect, process 600 includes: determining the location of the DMRS for the first transmission timing and the location of the DMRS for the second transmission timing based at least in part on the mapping type for the first transmission timing and the mapping type for the second transmission timing.

[0083] In the second aspect, either alone or in combination with the first aspect, the UE is configured to implement a scheme associated with time-division multiplexing of multiple transmission opportunities within a single time slot.

[0084] In the third aspect, either alone or in combination with one or more of the first and second aspects, process 600 includes: determining a DCI communication scheduling PDSCH, including a first transmission timing and a second transmission timing, based at least in part on a TCI field indicating a first TCI state and a second TCI state of DCI communication.

[0085] In the fourth aspect, determining the mapping type for the first transmission timing and the mapping type for the second transmission timing, either alone or in combination with one or more of the first to third aspects, includes: determining the mapping type for the first transmission timing based at least in part on the mapping type indicated by DCI communication; and determining the mapping type for the second transmission timing based at least in part on an assumed mapping type.

[0086] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the mapping type indicated by DCI communication includes mapping type A or mapping type B, and the assumed mapping type includes mapping type B.

[0087] In the sixth aspect, determining the mapping type for the first transmission timing and the mapping type for the second transmission timing, either alone or in combination with one or more of the first to fifth aspects, includes: determining the mapping type for the first transmission timing and the mapping type for the second transmission timing based at least in part on an assumed mapping type.

[0088] In the seventh aspect, either alone or in combination with one or more aspects from the first to the sixth aspects, the assumed mapping type includes mapping type B.

[0089] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, when the mapping type indicated by the DCI communication differs from the assumed mapping type, process 600 includes at least one of the following operations: identifying an error associated with the DCI communication, or avoiding receiving or processing a PDSCH.

[0090] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, when the mapping type indicated by DCI communication differs from the assumed mapping type, process 600 includes: receiving PDSCH based at least in part on the assumed mapping type rather than the mapping type indicated by DCI communication.

[0091] In the tenth aspect, determining the mapping type for the first transmission timing and the mapping type for the second transmission timing, either alone or in combination with one or more of the first to ninth aspects, includes: determining the mapping type for the second transmission timing based at least in part on the mapping type indicated by DCI communication; and determining the mapping type for the first transmission timing based at least in part on an assumed mapping type.

[0092] In the eleventh aspect, either alone or in combination with one or more aspects from the first to the tenth aspects, the mapping type indicated by DCI communication includes mapping type A or mapping type B, and the assumed mapping type includes mapping type B.

[0093] In the twelfth aspect, determining the mapping type for the first transmission timing and the mapping type for the second transmission timing, either alone or in combination with one or more of the first to eleventh aspects, includes: determining the mapping type for the first transmission timing based at least in part on the first mapping type indicated by DCI communication; and determining the mapping type for the second transmission timing based at least in part on the second mapping type indicated by DCI communication.

[0094] In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, the first mapping type indicated by DCI communication includes mapping type A, and the second mapping type indicated by DCI communication includes mapping type B.

[0095] In the fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the first mapping type indicated by DCI communication includes mapping type B, and the second mapping type indicated by DCI communication includes mapping type A or mapping type B.

[0096] In the fifteenth aspect, either alone or in combination with one or more of the first to fourteenth aspects, process 600 includes: identifying a technique for determining a mapping type for a first transmission timing and a mapping type for a second transmission timing; and determining the mapping type for the first transmission timing and the mapping type for the second transmission timing based at least in part on the technique.

[0097] In the sixteenth aspect, the technique for determining the mapping type for the first transmission timing and the mapping type for the second transmission timing, either alone or in combination with one or more of the first to fifteenth aspects, is identified at least in part based on the configuration received via radio resource control signaling.

[0098] In the seventeenth aspect, the technique for determining the mapping type for the first transmission timing and the mapping type for the second transmission timing, either alone or in combination with one or more of the first to sixteenth aspects, is identified based at least in part on a set of parameters including at least one of the following: the symbol offset between the first and second transmission timings, the position of the DMRS configuration of the PDSCH, the start symbol of the PDSCH, or the length of the transmission timing.

[0099] In the eighteenth aspect, either alone or in combination with one or more aspects from the first to the seventeenth aspects, the location of the DMRS configuration of the PDSCH is associated with mapping type A.

[0100] Although Figure 6 Example blocks of process 600 are shown, but in some aspects, process 600 may include... Figure 6 The blocks depicted in the diagram are compared to additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner. Alternatively, two or more blocks in process 600 can be executed in parallel.

[0101] The following provides an overview of some aspects of this disclosure:

[0102] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving downlink control information (DCI) communications that schedule a physical downlink shared channel (PDSCH) including a first transmission timing and a second transmission timing; and determining a mapping type for the first transmission timing and a mapping type for the second transmission timing based at least in part on receiving the DCI communications that schedule the PDSCH including the first transmission timing and the second transmission timing.

[0103] Aspect 2: According to the method of aspect 1, determining the mapping type for the first transmission timing and the mapping type for the second transmission timing includes: determining the mapping type for the first transmission timing and the mapping type for the second transmission timing based at least in part on the assumed mapping type.

[0104] Aspect 3: According to the method described in aspect 2, the assumed mapping type includes mapping type B.

[0105] Aspect 4: The method according to any of Aspects 2-3, wherein when the mapping type indicated by the DCI communication is different from the assumed mapping type, the method includes at least one of the following operations: identifying an error associated with the DCI communication, or avoiding receiving or processing the PDSCH.

[0106] Aspect 5: The method according to any of Aspects 2-4, wherein when the mapping type indicated by DCI communication is different from the assumed mapping type, the method includes: receiving PDSCH based at least in part on the assumed mapping type rather than the mapping type indicated by DCI communication.

[0107] Aspect 6: The method according to any of aspects 1-5 further includes: determining the position of the demodulation reference signal (DMRS) for the first transmission timing and the position of the DMRS for the second transmission timing based at least in part on the mapping type for the first transmission timing and the mapping type for the second transmission timing.

[0108] Aspect 7: The method according to any of aspects 1-6, wherein the UE is configured to implement a scheme associated with time-division multiplexing of multiple transmission opportunities within a single time slot.

[0109] Aspect 8: The method according to any of aspects 1-7 further includes: determining the PDSCH of the DCI communication scheduling, including the first transmission timing and the second transmission timing, based at least in part on the Transmission Configuration Indicator (TCI) field indicating the first TCI state and the second TCI state of the DCI communication.

[0110] Aspect 9: The method according to any of Aspects 1-8, wherein determining the mapping type for the first transmission timing and the mapping type for the second transmission timing comprises: determining the mapping type for the first transmission timing based at least in part on the mapping type indicated by DCI communication; and determining the mapping type for the second transmission timing based at least in part on an assumed mapping type.

[0111] Aspect 10: The method according to aspect 9, wherein the mapping type indicated by DCI communication includes mapping type A or mapping type B, and the assumed mapping type includes mapping type B.

[0112] Aspect 11: The method according to any of aspects 1-10, wherein determining the mapping type for the first transmission timing and the mapping type for the second transmission timing comprises: determining the mapping type for the second transmission timing based at least in part on the mapping type indicated by DCI communication; and determining the mapping type for the first transmission timing based at least in part on an assumed mapping type.

[0113] Aspect 12: According to the method of aspect 11, wherein the mapping type indicated by DCI communication includes mapping type A or mapping type B, and the assumed mapping type includes mapping type B.

[0114] Aspect 13: The method according to any of aspects 1-12, wherein determining the mapping type for the first transmission timing and the mapping type for the second transmission timing comprises: determining the mapping type for the first transmission timing based at least in part on the first mapping type indicated by DCI communication; and determining the mapping type for the second transmission timing based at least in part on the second mapping type indicated by DCI communication.

[0115] Aspect 14: According to the method of aspect 13, wherein the first mapping type indicated by DCI communication includes mapping type A, and the second mapping type indicated by DCI communication includes mapping type B.

[0116] Aspect 15: The method according to any of aspects 13-14, wherein the first mapping type indicated by DCI communication includes mapping type B, and the second mapping type indicated by DCI communication includes mapping type A or mapping type B.

[0117] Aspect 16: The method according to any of aspects 1-15 further includes: identifying techniques for determining a mapping type for a first transmission timing and a mapping type for a second transmission timing; and determining the mapping type for the first transmission timing and the mapping type for the second transmission timing based at least in part on the techniques.

[0118] Aspect 17: According to the method of aspect 16, the technique for determining the mapping type for the first transmission timing and the mapping type for the second transmission timing is identified at least in part based on the configuration received via radio resource control signaling.

[0119] Aspect 18: The method according to any of aspects 16-17, wherein the technique for determining the mapping type for the first transmission timing and the mapping type for the second transmission timing is identified at least in part based on a set of parameters including at least one of the following: symbol offset between the first and second transmission timings, the position of the demodulation reference signal (DMRS) configuration of the PDSCH, the start symbol of the PDSCH, or the length of the transmission timing.

[0120] Aspect 19: According to the method described in aspect 18, wherein the location of the DMRS configuration of the PDSCH is associated with mapping type A.

[0121] Aspect 20: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to one or more aspects of aspects 1-19.

[0122] Aspect 21: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform a method according to one or more aspects of aspects 1-19.

[0123] Aspect 22: An apparatus for wireless communication, comprising at least one unit for performing a method according to one or more aspects of aspects 1-19.

[0124] Aspect 23: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform methods according to one or more of aspects 1-19.

[0125] Aspect 24: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of the device, cause the device to perform a method according to one or more aspects of aspects 1-19.

[0126] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or modifications and variations may be derived from practice in the aspects.

[0127] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software should be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, and other examples. As used herein, a processor is implemented using hardware, firmware, and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented using various forms of hardware and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not a limitation in any respect. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, and it is to be understood that the software and hardware can be designed to implement the systems and / or methods, at least in part, based on the descriptions herein.

[0128] As used in this article, depending on the context, satisfying the threshold can mean that the value is greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0129] It will be apparent to you that the systems and / or methods described herein can be implemented in various forms of hardware, software, and / or combinations of hardware and software. The actual, specialized control hardware or software code used to implement these systems and / or methods is not a limitation in any respect. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, and it is to be understood that the software and hardware can be designed to implement the systems and / or methods, at least in part, based on the description herein.

[0130] While specific combinations of features are recited in the claims and / or disclosed in the description, these combinations are not intended to limit the disclosure of the aspects. In fact, many of these features can be combined in ways that are not specifically recited in the claims and / or specifically disclosed in the description. Although each dependent claim listed below may depend directly on only one claim, the disclosure of the aspects includes the combination of each dependent claim with every other claim in the claim set. Furthermore, the term “or” is intended to mean inclusive “or” rather than exclusionary “or.” That is, unless otherwise specified or clearly understood from the context, the phrase “X adopts A or B” is intended to mean any of the natural inclusive substitutions. That is, for example, any of the following instances satisfy the phrase “X adopts A or B”: X adopts A; X adopts B; or X adopts both A and B. When the term “and / or” is used in a list having two or more items, it means that any one of the listed items can be adopted individually, or any combination of two or more of the listed items can be adopted. For example, if a composition is described as containing components A, B, and / or C, then that composition could include: A only, B only, C only, a combination of A and B, a combination of A and C, a combination of B and C, or a combination of A, B, and C. The phrase "at least one of" in the list of items refers to any combination of those items, including single members. For example, "at least one of a, b, or c" is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination of multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, ccc, or any other ordering of a, b, and c).

[0131] The elements, actions, or instructions used herein should not be construed as critical or essential unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the terms “collection” and “group” are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with “one or more.” Where only one item is anticipated, the phrase “only one” or similar language is used. Furthermore, as used herein, the terms “has,” “have,” “having,” and / or similar terms are intended to be open-ended terms. Additionally, unless explicitly stated otherwise, the phrase “based on” is intended to mean “at least partially based on.”

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: receiving a downlink control information (DCI) communication scheduling a physical downlink shared channel (PDSCH) including a first transmission opportunity and a second transmission opportunity and indicating a PDSCH mapping type for identifying a symbol to carry a demodulation reference signal (DMRS), the PDSCH mapping type for the first transmission opportunity and the second transmission opportunity; and The PDSCH is received based at least in part on the PDSCH mapping type.

2. The method according to claim 1, further comprising: The PDSCH mapping type for the first transmission opportunity and the second transmission opportunity is determined based at least in part on an assumed mapping type.

3. The method according to claim 2, wherein: The assumed mapping type includes mapping type B.

4. The method according to claim 2, wherein: When the PDSCH mapping type is different from the assumed mapping type, the method includes: An error associated with the DCI communication is identified.

5. The method according to claim 1, further comprising: A location of a DMRS for the first transmission opportunity and a location of a DMRS for the second transmission opportunity are determined based at least in part on the PDSCH mapping type.

6. The method according to claim 1, wherein: The UE is configured to implement a scheme associated with time division multiplexing of multiple transmission opportunities within a single time slot.

7. The method according to claim 1, further comprising: The DCI communication schedules the PDSCH including the first transmission opportunity and the second transmission opportunity based at least in part on a transmission configuration indicator (TCI) field of the DCI communication indicating a first TCI state and a second TCI state.

8. The method according to claim 1, further comprising: The PDSCH mapping type for the first transmission opportunity and the second transmission opportunity is determined based at least in part on an assumed mapping type matching the PDSCH mapping type.

9. The method according to claim 8, wherein: The PDSCH mapping type includes mapping type B, and the assumed mapping type includes the mapping type B.

10. The method according to claim 1, further comprising: identifying a technique for determining the PDSCH mapping type for the first transmission opportunity and the second transmission opportunity; as well as The PDSCH mapping type for the first transmission opportunity and the second transmission opportunity is determined based at least in part on the technique.

11. The method according to claim 10, wherein: The techniques are identified based at least in part on a configuration received via radio resource control signaling.

12. The method according to claim 10, wherein: The technique is identified based at least in part on a set of parameters including at least one of: a symbol offset between the first transmission opportunity and the second transmission opportunity, The location of the DMRS configuration of the PDSCH, The starting symbol of the PDSCH, or The length of the transmission opportunity.

13. The method according to claim 12, wherein: The configured position of the DMRS of the PDSCH is associated with mapping type A.

14. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the memory comprising instructions for the one or more processors to cause the UE to: receiving a downlink control information (DCI) communication scheduling a physical downlink shared channel (PDSCH) including a first transmission opportunity and a second transmission opportunity and indicating a PDSCH mapping type for identifying a symbol to carry a demodulation reference signal (DMRS), the PDSCH mapping type for the first transmission opportunity and the second transmission opportunity; and The PDSCH is received based at least in part on the PDSCH mapping type.

15. The UE according to claim 14, wherein: The instructions are also used for the one or more processors to cause the UE to perform the following operations: The PDSCH mapping type for the first transmission opportunity and the second transmission opportunity is determined based at least in part on an assumed mapping type.

16. The UE according to claim 15, wherein: The assumed mapping type includes mapping type B.

17. The UE according to claim 15, wherein: When the PDSCH mapping type is different from the assumed mapping type, the instruction is further used for the one or more processors to cause the UE to perform the following operations: An error associated with the DCI communication is identified.

18. The UE according to claim 14, wherein: The UE is configured to implement a scheme associated with time division multiplexing of multiple transmission opportunities within a single time slot.

19. The UE according to claim 14, wherein: The instructions are also used for the one or more processors to cause the UE to perform the following operations: The DCI communication schedules the PDSCH including the first transmission opportunity and the second transmission opportunity based at least in part on a transmission configuration indicator (TCI) field of the DCI communication indicating a first TCI state and a second TCI state.

20. The UE according to claim 14, wherein: The instructions are also used for the one or more processors to cause the UE to perform the following operations: The PDSCH mapping type for the first transmission opportunity and the second transmission opportunity is determined based at least in part on an assumed mapping type matching the PDSCH mapping type.

21. The UE according to claim 20, wherein: The PDSCH mapping type includes mapping type B, and the assumed mapping type includes the mapping type B.

22. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: receiving a downlink control information (DCI) communication scheduling a physical downlink shared channel (PDSCH) including a first transmission opportunity and a second transmission opportunity and indicating a PDSCH mapping type for identifying a symbol to carry a demodulation reference signal (DMRS), the PDSCH mapping type for the first transmission opportunity and the second transmission opportunity; and The PDSCH is received based at least in part on the PDSCH mapping type.

23. The non-transitory computer readable medium of claim 22, wherein: The one or more instructions cause the UE to perform the following operations: The PDSCH mapping type for the first transmission opportunity and the second transmission opportunity is determined based at least in part on an assumed mapping type.

24. The non-transitory computer readable medium of claim 23, wherein: The assumed mapping type includes mapping type B.

25. The non-transitory computer readable medium of claim 23, wherein: When the PDSCH mapping type is different from the assumed mapping type, the one or more instructions cause the UE to perform the following operations: An error associated with the DCI communication is identified.

26. The non-transitory computer readable medium of claim 22, wherein: The UE is configured to implement a scheme associated with time division multiplexing of multiple transmission opportunities within a single time slot.

27. The non-transitory computer readable medium of claim 22, wherein: The one or more instructions further cause the UE to perform the following operations: The DCI communication schedules the PDSCH including the first transmission opportunity and the second transmission opportunity based at least in part on a transmission configuration indicator (TCI) field of the DCI communication indicating a first TCI state and a second TCI state.

28. The non-transitory computer readable medium of claim 22, wherein: The one or more instructions further cause the UE to perform the following operations: The PDSCH mapping type for the first transmission opportunity and the second transmission opportunity is determined based at least in part on an assumed mapping type matching the PDSCH mapping type.

29. An apparatus for wireless communication, comprising: means for receiving a downlink control information (DCI) communication, the DCI communication scheduling a physical downlink shared channel (PDSCH) including a first transmission opportunity and a second transmission opportunity and indicating a PDSCH mapping type for identifying a symbol to carry a demodulation reference signal (DMRS), the PDSCH mapping type for the first transmission opportunity and the second transmission opportunity; as well as Means for receiving the PDSCH based at least in part on the PDSCH mapping type.

30. The apparatus of claim 29, further comprising: Means for determining the PDSCH mapping type for the first transmission opportunity and the second transmission opportunity based at least in part on an assumed mapping type.

31. The device according to claim 30, wherein The assumed mapping type includes mapping type B.

32. The device according to claim 30, wherein: When the PDSCH mapping type is different from the assumed mapping type, the apparatus includes: Means for identifying an error associated with the DCI communication.

33. The device according to claim 29, wherein: The apparatus is configured to implement a scheme associated with time division multiplexing of multiple transmission opportunities within a single time slot.

34. The apparatus of claim 29, further comprising: Means for determining that the DCI communication schedules the PDSCH including the first transmission opportunity and the second transmission opportunity based at least in part on a transmission configuration indicator (TCI) field of the DCI communication indicating a first TCI state and a second TCI state.

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