WO2021203369A1 - Methods and apparatus for determining transport block size for pusch with uci - Google Patents
Methods and apparatus for determining transport block size for pusch with uci Download PDFInfo
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- WO2021203369A1 WO2021203369A1 PCT/CN2020/084004 CN2020084004W WO2021203369A1 WO 2021203369 A1 WO2021203369 A1 WO 2021203369A1 CN 2020084004 W CN2020084004 W CN 2020084004W WO 2021203369 A1 WO2021203369 A1 WO 2021203369A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
Definitions
- aspects of the present disclosure relate generally to wireless communications, and more particularly, to apparatuses and methods for determining transport block size.
- Wireless communication networks are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on.
- These systems may be multiple-access systems capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) .
- multiple-access systems 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, and single-carrier frequency division multiple access (SC-FDMA) systems.
- CDMA code-division multiple access
- TDMA time-division multiple access
- FDMA frequency-division multiple access
- OFDMA orthogonal frequency-division multiple access
- SC-FDMA single-carrier frequency division multiple access
- 5G communications technology may include: enhanced mobile broadband addressing human-centric use cases for access to multimedia content, services and data; ultra-reliable-low latency communications (URLLC) with certain specifications for latency and reliability; and massive machine type communications, which may allow a very large number of connected devices and transmission of a relatively low volume of non-delay-sensitive information.
- URLLC ultra-reliable-low latency communications
- massive machine type communications which may allow a very large number of connected devices and transmission of a relatively low volume of non-delay-sensitive information.
- a base station may allocate resources to a user equipment (UE) for uplink data and control information.
- the BS may divide the resources between the data information and the control information.
- the BS may determine the transport block size (TBS) associated with the data transmission.
- TBS transport block size
- the amount of resources allocated for the data information may impact the code rate used for the transmission of the data information.
- a higher code rate may allow the resource elements (REs) to transmit more information, but at a cost of lower transmission reliability.
- a lower code rate may allow the REs to transmit less information, but at a higher transmission reliability. Therefore, improvements in determining the amount of data information during uplink transmission may be desirable.
- aspects of the present disclosure include methods for determining a first number of resources allocated for an uplink transmission, determining a second number of resources allocated for control information in the uplink transmission, determining a difference between the first number of resources and the second number of resources, determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- a BS having a memory comprising instructions, a transceiver, and one or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to execute instructions in the memory to determine a first number of resources allocated for an uplink transmission, determine a second number of resources allocated for control information in the uplink transmission, determine a difference between the first number of resources and the second number of resources, determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- An aspect of the present disclosure includes a BS including means for determining a first number of resources allocated for an uplink transmission, means for determining a second number of resources allocated for control information in the uplink transmission, means for determining a difference between the first number of resources and the second number of resources, means for determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and means for transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- Some aspects of the present disclosure include non-transitory computer readable media having instructions stored therein that, when executed by one or more processors of a BS, cause the one or more processors to determine a first number of resources allocated for an uplink transmission, determine a second number of resources allocated for control information in the uplink transmission, determine a difference between the first number of resources and the second number of resources, determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- aspects of the present disclosure includes a method for receiving scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission, and transmitting the data information via one or more of the available number of resources.
- a UE having a memory comprising instructions, a transceiver, and one or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to execute instructions in the memory to receive scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission, and transmit the data information via one or more of the available number of resources.
- An aspect of the present disclosure includes a UE including means for receiving scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission, and means for transmitting the data information via one or more of the available number of resources.
- Some aspects of the present disclosure include non-transitory computer readable media having instructions stored therein that, when executed by one or more processors of a UE, cause the one or more processors to receive scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission, and transmit the data information via one or more of the available number of resources.
- the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims.
- the following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents.
- FIG. 1 is a diagram illustrating an example of a wireless communications system and an access network
- FIG. 2 is a schematic diagram of an example of a user equipment
- FIG. 3 is a schematic diagram of an example of a base station
- FIG. 4 is schematic diagram of a first example of a resource configuration according to aspects of the present disclosure
- FIG. 5 is a schematic diagram of a second example of a resource configuration according to aspects of the present disclosure.
- FIG. 6 is schematic diagram of a third example of a resource configuration according to aspects of the present disclosure.
- FIG. 7 is a schematic diagram of a fourth example of a resource configuration according to aspects of the present disclosure.
- FIG. 8 is a schematic diagram of a fifth example of a resource configuration according to aspects of the present disclosure.
- FIG. 9 is a schematic diagram of examples of resource configurations having different numbers of HARQ-ACK bits according to aspects of the present disclosure.
- FIG. 10 is a process flow diagram of an example of a method for determining resources for data transmission by the BS.
- FIG. 11 is a process flow diagram of an example of a method for transmitting data by the UE via the resources allocated.
- processors include microprocessors, microcontrollers, graphics processing units (GPUs) , central processing units (CPUs) , application processors, digital signal processors (DSPs) , reduced instruction set computing (RISC) processors, systems on a chip (SoC) , baseband processors, field programmable gate arrays (FPGAs) , programmable logic devices (PLDs) , state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionality described throughout this disclosure.
- processors in the processing system may execute software.
- Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
- the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on or encoded as one or more instructions or code on a computer-readable medium.
- Computer-readable media includes computer storage media. Storage media may be any available media that may be accessed by a computer.
- such computer-readable media may comprise a random-access memory (RAM) , a read-only memory (ROM) , an electrically erasable programmable ROM (EEPROM) , optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of the aforementioned types of computer-readable media, or any other medium that may be used to store computer executable code in the form of instructions or data structures that may be accessed by a computer.
- RAM random-access memory
- ROM read-only memory
- EEPROM electrically erasable programmable ROM
- optical disk storage magnetic disk storage
- magnetic disk storage other magnetic storage devices
- combinations of the aforementioned types of computer-readable media or any other medium that may be used to store computer executable code in the form of instructions or data structures that may be accessed by a computer.
- a BS may allocate resources for the uplink (UL) and/or downlink (DL) data and/or control information.
- the allocated resources may be allocated between UL data transmissions (e.g., physical uplink shared channel (PUSCH) ) and UL control transmissions (e.g., physical uplink control channel (PUCCH) ) , or between DL data transmissions (e.g., physical downlink shared channel (PUSCH) ) and DL control transmission (e.g., physical downlink control channel (PDCCH) ) .
- PUSCH physical uplink shared channel
- PUCCH physical uplink control channel
- a code rate scaling factor may be used to obtain a lower code rate than the indicated modulation coding scheme (MCS) .
- MCS modulation coding scheme
- the number of resource elements (REs) per layer for UCI may be:
- N RE UCI is the total number of REs per layer of the PUSCH that the UCI can be mapped to
- K UL-SCH is the payload size of uplink shared channel (UL-SCH) including transport block (TB) cyclic redundancy check (CRC) bits (and possibly code block (CB) CRC bits if any)
- K UCI is the number of UCI payload size including the CRC bits.
- a portion factor ⁇ (e.g., ⁇ ⁇ 0.5, 0.65, 0.8, 1.0 ⁇ ) may be implemented to limit the max portion of resources that the UCI may occupy.
- the following equation may be used to limit the amount of REs for UCI:
- a UCI may be transmitted on PUSCH includes hybrid automatic repeat request acknowledgement (HARQ-ACK) and channel state information (CSI) , including CSI-part1 and CSI-part 2.
- HARQ-ACK, CSI-part1 and CSI-part 2 are separately encoded and rate-matched on PUSCH.
- an intermediate value may be determined first by the following equation:
- N info N RE ⁇ R ⁇ Q m ⁇ v.
- N RE N RE, UCI , except in some cases that DMRS symbols can be mapped with UL-SCH but not UCI, which makes N RE, UCI a little smaller than N RE .
- TBS may be determined based on the intermediate value N info , with some optional quantization procedures relating to channel coding, channel block (CB) segmentation, and/or CRC bits attachment:
- L CRC, TB and L CRC, CB are the length of TB CRC bits and CB CRC bits, respectively.
- TBS (and thus K UL-SCH ) may be based on the total resources of PUSCH:
- the actual resources allocated to UL-SCH may be lower than total N RE because a portion of the resource may be allocated to the control information:
- Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
- the BS may schedule a lower code rate R.
- R the number of UCI REs, e.g. HARQ-ACK REs, increases with decreasing R as shown below:
- O ACK is the number of HARQ-ACK bits and L ACK is the number of CRC bits for HARQ-ACK.
- the number of UCI REs is inversely proportional with R (assume it does not exceed the upper limit by ⁇ ) , and would increase due to a lower R (so are Q′ CSI-1 and Q′ CSI-2 ) . Therefore, the number of UL-SCH REs Q′ UL-SCH would decrease with this lower R (if the total resources scheduled for the UL transmission is kept unchanged) , which hinders the reliability improvement.
- the BS may compute the TBS by subtracting the control resources from the total resources allocated for transmission. For example, the BS may determine the TBS by subtracting the resources allocated for HARQ-ACK, CSI-part1, and CSI-part2 from the total resources. In another example, the BS may determine the TBS by subtracting the resources allocated for CSI-part1 and CSI-part2 from the total resources. In an example, the BS may determine the TBS by subtracting the resources allocated for reserved HARQ-ACK, CSI-part1, and CSI-part2 from the total resources.
- FIG. 1 is a diagram illustrating an example of a wireless communications system and an access network 100.
- the wireless communications system (also referred to as a wireless wide area network (WWAN) ) includes at least one BS 105, UEs 110, an Evolved Packet Core (EPC) 160, and a 5G Core (5GC) 190.
- the BS 105 may include macro cells (high power cellular base station) and/or small cells (low power cellular base station) .
- the macro cells include base stations.
- the small cells include femtocells, picocells, and microcells.
- the UE 110 may include a communication component 222.
- the communication component 222 and/or a modem 220 of the UE 110 may be configured to communicate with the BS 105 via a cellular network, a Wi-Fi network, or other wireless and wired networks.
- the BS 105 may include a communication component 322 configured to communicate with the UE 110.
- the BS 105 may include a determination component 324 that determines an amount of resources allocated for data information after subtracting control information from the total information allocated.
- a BS 105 configured for 4G LTE may interface with the EPC 160 through backhaul links interfaces 132 (e.g., S1, X2, Internet Protocol (IP) , or flex interfaces) .
- a BS 105 configured for 5G NR may interface with 5GC 190 through backhaul links interfaces 134 (e.g., S1, X2, Internet Protocol (IP) , or flex interface) .
- the BS 105 may perform one or more of the following functions: transfer of user data, radio channel ciphering and deciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity) , inter-cell interference coordination, connection setup and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS) , subscriber and equipment trace, RAN information management (RIM) , paging, positioning, and delivery of warning messages.
- the BS 105 may communicate directly or indirectly (e.g., through the EPC 160 or 5GC 190) with each other over the backhaul links interfaces 134.
- the backhaul links 132, 134 may be wired or wireless.
- the BS 105 may wirelessly communicate with the UEs 110. Each of the BS 105 may provide communication coverage for a respective geographic coverage area 130. There may be overlapping geographic coverage areas 130. For example, the small cell 105' may have a coverage area 130' that overlaps the coverage area 130 of one or more macro BS 105.
- a network that includes both small cell and macro cells may be known as a heterogeneous network.
- a heterogeneous network may also include Home Evolved Node Bs (eNBs) (HeNBs) , which may provide service to a restricted group known as a closed subscriber group (CSG) .
- eNBs Home Evolved Node Bs
- HeNBs Home Evolved Node Bs
- CSG closed subscriber group
- the communication links 120 between the BS 105 and the UEs 110 may include uplink (UL) (also referred to as reverse link) transmissions from a UE 110 to a BS 105 and/or downlink (DL) (also referred to as forward link) transmissions from a BS 105 to a UE 110.
- the communication links 120 may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and/or transmit diversity.
- the communication links may be through one or more carriers.
- the BS 105 /UEs 110 may use spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc.
- the component carriers may include a primary component carrier and one or more secondary component carriers.
- a primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell) .
- D2D communication link 158 may use the DL/UL WWAN spectrum.
- the D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
- sidelink channels such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
- sidelink channels such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
- D2D communication may be through a variety of wireless D2D communications systems, such as for example, FlashLinQ, WiMedia,
- the wireless communications system may further include a Wi-Fi access point (AP) 150 in communication with Wi-Fi stations (STAs) 152 via communication links 154 in a 5 GHz unlicensed frequency spectrum.
- AP Wi-Fi access point
- STAs Wi-Fi stations
- communication links 154 in a 5 GHz unlicensed frequency spectrum.
- the STAs 152 /AP 150 may perform a clear channel assessment (CCA) prior to communicating in order to determine whether the channel is available.
- CCA clear channel assessment
- the small cell 105' may operate in a licensed and/or an unlicensed frequency spectrum. When operating in an unlicensed frequency spectrum, the small cell 105' may employ NR and use the same 5 GHz unlicensed frequency spectrum as used by the Wi-Fi AP 150. The small cell 105', employing NR in an unlicensed frequency spectrum, may boost coverage to and/or increase capacity of the access network.
- a BS 105 may include an eNB, gNodeB (gNB) , or other type of base station.
- Some base stations, such as gNB 180 may operate in a traditional sub 6 GHz spectrum, in millimeter wave (mmW) frequencies, and/or near mmW frequencies in communication with the UE 110.
- mmW millimeter wave
- mmW millimeter wave
- near mmW frequencies in communication with the UE 110.
- the gNB 180 When the gNB 180 operates in mmW or near mmW frequencies, the gNB 180 may be referred to as an mmW base station.
- Extremely high frequency (EHF) is part of the radio frequency (RF) in the electromagnetic spectrum.
- EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters. Radio waves in the band may be referred to as a millimeter wave. Near mmW may extend down to a frequency of 3 GHz with a wavelength of 100 millimeters.
- the super high frequency (SHF) band extends between 3 GHz and 30 GHz, also referred to as centimeter wave. Communications using the mmW /near mmW radio frequency band has extremely high path loss and a short range.
- the mmW base station 180 may utilize beamforming 182 with the UE 110 to compensate for the path loss and short range.
- the EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172.
- MME Mobility Management Entity
- MBMS Multimedia Broadcast Multicast Service
- BM-SC Broadcast Multicast Service Center
- PDN Packet Data Network
- the MME 162 may be in communication with a Home Subscriber Server (HSS) 174.
- HSS Home Subscriber Server
- the MME 162 is the control node that processes the signaling between the UEs 110 and the EPC 160.
- the MME 162 provides bearer and connection management. All user Internet protocol (IP) packets are transferred through the Serving Gateway 166, which itself is connected to the PDN Gateway 172.
- IP Internet protocol
- the PDN Gateway 172 provides UE IP address allocation as well as other functions.
- the PDN Gateway 172 and the BM-SC 170 are connected to the IP Services 176.
- the IP Services 176 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a PS Streaming Service, and/or other IP services.
- the BM-SC 170 may provide functions for MBMS user service provisioning and delivery.
- the BM-SC 170 may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN) , and may be used to schedule MBMS transmissions.
- PLMN public land mobile network
- the MBMS Gateway 168 may be used to distribute MBMS traffic to the BS 105 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and may be responsible for session management (start/stop) and for collecting eMBMS related charging information.
- MMSFN Multicast Broadcast Single Frequency Network
- the 5GC 190 may include a Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195.
- the AMF 192 may be in communication with a Unified Data Management (UDM) 196.
- the AMF 192 is the control node that processes the signaling between the UEs 110 and the 5GC 190.
- the AMF 192 provides QoS flow and session management. All user Internet protocol (IP) packets are transferred through the UPF 195.
- the UPF 195 provides UE IP address allocation as well as other functions.
- the UPF 195 is connected to the IP Services 197.
- the IP Services 197 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a PS Streaming Service, and/or other IP services.
- IMS IP Multimedia Subsystem
- the BS 105 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, an access point, an access node, a radio transceiver, a NodeB, eNodeB (eNB) , gNB, Home NodeB, a Home eNodeB, a relay, a transceiver function, a basic service set (BSS) , an extended service set (ESS) , a transmit reception point (TRP) , or some other suitable terminology.
- the BS 105 provides an access point to the EPC 160 or 5GC 190 for a UE 110.
- Examples of UEs 110 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 sensor/actuator, a display, or any other similar functioning device.
- SIP session initiation protocol
- PDA personal digital assistant
- the UEs 110 may be referred to as IoT devices (e.g., parking meter, gas pump, toaster, vehicles, heart monitor, etc. ) .
- the UE 110 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.
- one example of an implementation of the UE 110 may include a modem 220 having a communication component 222.
- the communication component 222 and/or the modem 220 of the UE 110 may be configured to communicate with the BS 105 via a cellular network, a Wi-Fi network, or other wireless and wired networks.
- the UE 110 may include a variety of components, including components such as one or more processors 212 and memory 216 and transceiver 202 in communication via one or more buses 244, which may operate in conjunction with the modem 220 and the communication component 222 to enable one or more of the functions described herein related to communicating with the BS 105.
- the one or more processors 212, modem 220, memory 216, transceiver 202, RF front end 288 and one or more antennas 265, may be configured to support voice and/or data calls (simultaneously or non-simultaneously) in one or more radio access technologies.
- the one or more antennas 265 may include one or more antennas, antenna elements and/or antenna arrays.
- the one or more processors 212 may include the modem 220 that uses one or more modem processors.
- the various functions related to the communication component 222 may be included in the modem 220 and/or processors 212 and, in an aspect, may be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors.
- the one or more processors 212 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiving device processor, or a transceiver processor associated with transceiver 202.
- the modem 220 may configure the UE 110 along with the processors 212. In other aspects, some of the features of the one or more processors 212 and/or the modem 220 associated with the communication component 222 may be performed by transceiver 202.
- memory 216 may be configured to store data used herein and/or local versions of applications 275 or the communication component 222 and/or one or more subcomponents of the communication component 222 being executed by at least one processor 212.
- Memory 216 may include any type of computer-readable medium usable by a computer or at least one processor 212, such as random access memory (RAM) , read only memory (ROM) , tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof.
- RAM random access memory
- ROM read only memory
- tapes such as magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof.
- memory 216 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the communication component 222 and/or one or more of its subcomponents, and/or data associated therewith, when UE 110 is operating at least one processor 212 to execute the communication component 222 and/or one or more of the subcomponents.
- Transceiver 202 may include at least one receiver 206 and at least one transmitter 208.
- Receiver 206 may include hardware, firmware, and/or software code executable by a processor for receiving data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium) .
- Receiver 206 may be, for example, a RF receiving device.
- the receiver 206 may receive signals transmitted by at least one BS 105.
- Transmitter 208 may include hardware, firmware, and/or software code executable by a processor for transmitting data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium) .
- a suitable example of transmitter 208 may including, but is not limited to, an RF transmitter.
- UE 110 may include RF front end 288, which may operate in communication with one or more antennas 265 and transceiver 202 for receiving and transmitting radio transmissions, for example, wireless communications transmitted by at least one BS 105 or wireless transmissions transmitted by UE 110.
- RF front end 288 may be coupled with one or more antennas 265 and may include one or more low-noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.
- LNAs low-noise amplifiers
- PAs power amplifiers
- LNA 290 may amplify a received signal at a desired output level.
- each LNA 290 may have a specified minimum and maximum gain values.
- RF front end 288 may use one or more switches 292 to select a particular LNA 290 and the specified gain value based on a desired gain value for a particular application.
- one or more PA (s) 298 may be used by RF front end 288 to amplify a signal for an RF output at a desired output power level.
- each PA 298 may have specified minimum and maximum gain values.
- RF front end 288 may use one or more switches 292 to select a particular PA 298 and the specified gain value based on a desired gain value for a particular application.
- one or more filters 296 may be used by RF front end 288 to filter a received signal to obtain an input RF signal.
- a respective filter 296 may be used to filter an output from a respective PA 298 to produce an output signal for transmission.
- each filter 296 may be coupled with a specific LNA 290 and/or PA 298.
- RF front end 288 may use one or more switches 292 to select a transmit or receive path using a specified filter 296, LNA 290, and/or PA 298, based on a configuration as specified by transceiver 202 and/or processor 212.
- transceiver 202 may be configured to transmit and receive wireless signals through one or more antennas 265 via RF front end 288.
- transceiver may be tuned to operate at specified frequencies such that UE 110 may communicate with, for example, one or more BS 105 or one or more cells associated with one or more BS 105.
- the modem 220 may configure transceiver 202 to operate at a specified frequency and power level based on the UE configuration of the UE 110 and the communication protocol used by the modem 220.
- the modem 220 may be a multiband-multimode modem, which may process digital data and communicate with transceiver 202 such that the digital data is sent and received using transceiver 202.
- the modem 220 may be multiband and be configured to support multiple frequency bands for a specific communications protocol.
- the modem 220 may be multimode and be configured to support multiple operating networks and communications protocols.
- the modem 220 may control one or more components of UE 110 (e.g., RF front end 288, transceiver 202) to enable transmission and/or reception of signals from the network based on a specified modem configuration.
- the modem configuration may be based on the mode of the modem and the frequency band in use.
- the modem configuration may be based on UE configuration information associated with UE 110 as provided by the network.
- one example of an implementation of the BS 105 may include a modem 320 with a communication component 322 configured to transmit data.
- the communication component 322 and/or the modem 320 the BS 105 may be configured to communicate with the UE 110 via a cellular network, a Wi-Fi network, or other wireless and wired networks.
- the BS 105 may include a variety of components, including components such as one or more processors 312 and memory 316 and transceiver 302 in communication via one or more buses 344, which may operate in conjunction with the modem 320 and the communication component 322 to enable one or more of the functions described herein related to communicating with the UE 110.
- the one or more processors 312, modem 320, memory 316, transceiver 302, RF front end 388 and one or more antennas 365 may be configured to support voice and/or data calls (simultaneously or non-simultaneously) in one or more radio access technologies.
- the one or more processors 312 may include the modem 320 that uses one or more modem processors.
- the various functions related to the communication component 322 and/or the determination component 324 may be included in the modem 320 and/or processors 312 and, in an aspect, may be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors.
- the one or more processors 312 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiving device processor, or a transceiver processor associated with transceiver 302.
- the modem 320 may configure the BS 105 and processors 312. In other aspects, some of the features of the one or more processors 312 and/or the modem 320 associated with the communication component 322 and/or the determination component 324 may be performed by transceiver 302.
- memory 316 may be configured to store data used herein and/or local versions of applications 375 or the communication component 322, the determination component, and/or one or more subcomponents of the communication component 322 or the determination component being executed by at least one processor 312.
- Memory 316 may include any type of computer-readable medium usable by a computer or at least one processor 312, such as random access memory (RAM) , read only memory (ROM) , tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof.
- memory 316 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the communication component 322, the determination component, and/or one or more of its subcomponents, and/or data associated therewith, when the BS 105 is operating at least one processor 312 to execute the communication component 322, the determination component, and/or one or more of the subcomponents.
- Transceiver 302 may include at least one receiver 306 and at least one transmitter 308.
- the at least one receiver 306 may include hardware, firmware, and/or software code executable by a processor for receiving data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium) .
- the receiver 306 may be, for example, a RF receiving device.
- receiver 306 may receive signals transmitted by the UE 110.
- Transmitter 308 may include hardware, firmware, and/or software code executable by a processor for transmitting data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium) .
- a suitable example of transmitter 308 may including, but is not limited to, an RF transmitter.
- the BS 105 may include RF front end 388, which may operate in communication with one or more antennas 365 and transceiver 302 for receiving and transmitting radio transmissions, for example, wireless communications transmitted by other BS 105 or wireless transmissions transmitted by UE 110.
- RF front end 388 may be coupled with one or more antennas 365 and may include one or more low-noise amplifiers (LNAs) 390, one or more switches 392, one or more power amplifiers (PAs) 398, and one or more filters 396 for transmitting and receiving RF signals.
- LNAs low-noise amplifiers
- PAs power amplifiers
- LNA 390 may amplify a received signal at a desired output level.
- each LNA 390 may have a specified minimum and maximum gain values.
- RF front end 388 may use one or more switches 392 to select a particular LNA 390 and the specified gain value based on a desired gain value for a particular application.
- one or more PA (s) 398 may be used by RF front end 388 to amplify a signal for an RF output at a desired output power level.
- each PA 398 may have specified minimum and maximum gain values.
- RF front end 388 may use one or more switches 392 to select a particular PA 398 and the specified gain value based on a desired gain value for a particular application.
- one or more filters 396 may be used by RF front end 388 to filter a received signal to obtain an input RF signal.
- a respective filter 396 may be used to filter an output from a respective PA 398 to produce an output signal for transmission.
- each filter 396 may be coupled with a specific LNA 390 and/or PA 398.
- RF front end 388 may use one or more switches 392 to select a transmit or receive path using a specified filter 396, LNA 390, and/or PA 398, based on a configuration as specified by transceiver 302 and/or processor 312.
- transceiver 302 may be configured to transmit and receive wireless signals through one or more antennas 365 via RF front end 388.
- transceiver may be tuned to operate at specified frequencies such that BS 105 may communicate with, for example, the UE 110 or one or more cells associated with one or more BS 105.
- the modem 320 may configure transceiver 302 to operate at a specified frequency and power level based on the base station configuration of the BS 105 and the communication protocol used by the modem 320.
- the modem 320 may be a multiband-multimode modem, which may process digital data and communicate with transceiver 302 such that the digital data is sent and received using transceiver 302.
- the modem 320 may be multiband and be configured to support multiple frequency bands for a specific communications protocol.
- the modem 320 may be multimode and be configured to support multiple operating networks and communications protocols.
- the modem 320 may control one or more components of the BS 105 (e.g., RF front end 388, transceiver 302) to enable transmission and/or reception of signals from the network based on a specified modem configuration.
- the modem configuration may be based on the mode of the modem and the frequency band in use.
- the modem configuration may be based on base station configuration associated with the BS 105.
- an example of a resource configuration 400 may be allocated by the BS 105.
- the resource configuration 400 may be allocated for UL transmission of data and/or control information by the UE 110.
- the resource configuration 400 may include CSI-part1 REs 410, HARQ-ACK REs 412, CSI-part2 REs 414, and UL-SCH REs 416.
- the BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 410, HARQ-ACK REs 412, and CSI-part2 REs 414, from the total resource allocated for the UL transmission.
- an intermediate value N info may be computed using the following equation:
- N info (N RE - (Q′ ACK +Q′ CSI-1 +Q′ CSI-2 ) ) ⁇ R ⁇ Q m ⁇ v,
- R indicates code rate
- Q m is the modulation order
- v is the number of layers
- N RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to.
- Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
- Q′ ACK may be determined by the following equation:
- O ACK is the number of HARQ-ACK bits
- C UL-SCH is the number of code blocks for the UL-SCH of the uplink transmission
- K r is the r-th code block size for the UL-SCH of the uplink transmission
- is the scheduled bandwidth of the uplink transmission e.g., expressed in a number of subcarriers
- ⁇ is the scaling parameter
- l 0 is the symbol index of the first symbol that does not carry the reference signal of the uplink transmission
- the BS 105 may compute the term Q′ CSI-1 using the equation below:
- O CSI-1 is the number of bits for CSI-part1
- L CSI-1 is number of CRC bits for CSI-part1
- the term is the number of reserved REs for potential HARQ-ACK transmission in symbol l, for in the uplink transmission.
- the BS 105 may compute the term Q′ CSI-2 using the equation below:
- O CSI-2 is the number of bits for CSI-part2
- L CSI-2 is number of CRC bits for CSI-part2
- Q′′′ ACK 0 if the number of HARQ-ACK in formation bits is two or less bits.
- Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 may be determined based on the equations above, with one or more of the following changes.
- the derivation for Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 may be different for UL-SCH being a new transmission and a retransmissions.
- code block size K r in the denominator are determined by a “virtual TBS” based on N RE :
- N info, virtual N RE ⁇ R ⁇ Q m ⁇ v.
- the BS 105 may compute the virtual transport block size (virtual TBS) of the resource allocated for data transmission. For N info, virtual >3824, the BS 105 may determine a quantized value using the following equation:
- the TBS may be quantized as
- TBS TBS based on N info, virtual .
- the terms Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 may be calculated by modifying one or more of the equations above.
- Q′ ACK may be calculated using the following modified equation:
- Q′ CSI-1 may be calculated using the following modified equation:
- Q′ CSI-2 may be calculated using the following modified equation:
- the terms Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 may be calculated by modifying one or more of the equations above.
- Q′ ACK may be calculated using the following modified equation:
- Q′ CSI-1 may be calculated using the following modified equation:
- Q′ CSI-2 may be calculated using the following modified equation:
- the BS 105 may compute the transport block size (TBS) of the resource allocated for data transmission.
- TBS transport block size
- the BS 105 may determine a quantized value using the following equation:
- the TBS may be quantized as
- an example of a resource configuration 500 may be allocated by the BS 105.
- the resource configuration may be allocated for UL transmission of data and/or control information by the UE 110.
- the resource configuration 500 may include CSI-part1 REs 510, CSI-part2 REs 514, and UL-SCH REs 516.
- the BS 105 may omit the HARQ-ACK REs to avoid the ambiguity of whether HARQ-ACK exists due to the possibly miss-detected downlink control information (e.g., PDCCH) for the corresponding downlink (e.g., PDSCH) scheduling.
- PDCCH possibly miss-detected downlink control information
- PDSCH downlink scheduling.
- the BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 510 and CSI-part2 REs 514, from the total resource allocated for the UL transmission.
- an intermediate value N info may be computed using the following equation:
- N info (N RE - (Q′ CSI-1 +Q′ CSI-2 ) ) ⁇ R ⁇ Q m ⁇ v,
- R indicates code rate
- Q m is the modulation order
- v is the number of layers
- N RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to.
- Q′ CSI-1 and Q′ CSI-2 are the resources for CSI-part1 and CSI-part2, respectively.
- the terms Q′ CSI-1 and Q′ CSI-2 and the value of the TBS may be computed as discussed above.
- an example of a resource configuration 600 may be allocated by the BS 105.
- the resource configuration 600 may be allocated for UL transmission of data and/or control information by the UE 110.
- the allocation may be determined on a number of HARQ-ACK bits or reserved HARQ-ACK bits.
- the resource configuration 600 may include CSI-part1 REs 610, HARQ-ACK REs 612, CSI-part2 REs 614, and UL-SCH REs 616.
- the amount of HARQ-ACK REs 612 may be different depending on the amount of HARQ-ACK bits in the payload.
- the BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 610, CSI-part2 REs 614, and HARQ-ACK REs 612, from the total resource allocated for the UL transmission.
- the control information such as the CSI-part1 REs 610, CSI-part2 REs 614, and HARQ-ACK REs 612.
- an intermediate value N info may be computed using the following equation:
- N info (N RE - (Q′ CSI-1 +Q′ CSI-2 ) ) ⁇ R ⁇ Q m ⁇ v,
- the payload associated with the HARQ-ACK REs 612 includes two or less bits
- N info (N RE - (Q′ ACK +Q′ CSI-1 +Q′ CSI-2 ) ) ⁇ R ⁇ Q m ⁇ v,
- the payload associated with the HARQ-ACK REs 612 includes more than two bits.
- R indicates code rate
- Q m is the modulation order
- v is the number of layers
- N RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to.
- Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
- an example of a resource configuration 700 may be allocated by the BS 105.
- the resource configuration 700 may be allocated for UL transmission of data and/or control information by the UE 110.
- the allocation may be determined on a number of HARQ-ACK bits or reserved HARQ-ACK bits.
- the resource configuration 700 may include CSI-part1 REs 710, HARQ-ACK REs 712, CSI-part2 REs 714, and UL-SCH REs 716.
- the amount of HARQ-ACK REs 712 may be different depending on the amount of HARQ-ACK bits in the payload.
- the BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 710, HARQ-ACK REs 712, and CSI-part2 REs 714, from the total resource allocated for the UL transmission.
- the control information such as the CSI-part1 REs 710, HARQ-ACK REs 712, and CSI-part2 REs 714.
- an intermediate value N info may be computed using the following equation:
- N info (N RE - (Q′ ACK, rvd +Q′ CSI-1 +Q′ CSI-2 ) ) ⁇ R ⁇ Q m ⁇ v,
- the payload associated with the HARQ-ACK REs 712 includes two or less bits
- N info (N RE - (Q′ ACK +Q′ CSI-1 +Q′ CSI-2 ) ) ⁇ R ⁇ Q m ⁇ v,
- the payload associated with the HARQ-ACK REs 712 includes more than two bits.
- Q′ ACK, rvd is the reserved number of REs for potential HARQ-ACK transmission when the HARQ-ACK payload size includes two or less bits (the reserved HARQ-ACK REs would puncture the CSI REs or UL-SCH REs when mapped on PUSCH)
- R indicates code rate
- Q m is the modulation order
- v is the number of layers
- N RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to.
- Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
- Q′ ACK, rvd may be determined using one or more of the equations described above.
- the term may be determined using the following equation:
- an example of a resource configuration 800 may be allocated by the BS 105.
- the resource configuration 800 may be allocated for UL transmission of data and/or control information by the UE 110.
- the resource configuration 800 may include CSI-part1 REs 810, HARQ-ACK REs 812, CSI-part2 REs 814, and UL-SCH REs 816.
- the amount of HARQ-ACK REs 812 may be different depending on the amount of HARQ-ACK bits in the payload.
- the BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 810, HARQ-ACK REs 812, and CSI-part2 REs 814, from the total resource allocated for the UL transmission.
- the control information such as the CSI-part1 REs 810, HARQ-ACK REs 812, and CSI-part2 REs 814.
- an intermediate value N info may be computed using the following equation:
- N info (N RE - (Q′ ACK, rvd +Q′ CSI-1 +Q′ CSI-2 ) ) ⁇ R ⁇ Q m ⁇ v,
- Q′ ACK, rvd is the reserved number of REs for potential HARQ-ACK transmission when the HARQ-ACK payload size includes two or less bits
- R indicates code rate
- Q m is the modulation order
- v is the number of layers
- N RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to.
- Q′ ACK , Q′ CSI-1 , and Q′ CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
- Q′ ACK, rvd may be determined using one or more of the equations described above.
- the term may be determined using the following equation:
- examples of a first resource configuration 900 and a second resource configuration 950 may be allocated by the BS 105.
- the resource configurations 900, 950 may be allocated for UL transmission of data and/or control information by the UE 110.
- the resource configurations 900, 950 may each include CSI-part1 REs 910, reference signals 911 (e.g., demodulation reference signals, synchronization reference signals, channel state information reference signals, phase tracking reference signals, etc. ) HARQ-ACK REs 912, CSI-part2 REs 914, and UL-SCH REs 916.
- the first resource configuration 900 may be configured when the payload for the HARQ-ACK transmission includes two or less bits.
- the second resource configuration 950 may be configured when the payload for the HARQ-ACK transmission includes more than two bits.
- an example of a method 1000 for determining a number of resources for uplink data transmission may be performed by the one or more of the processor 312, the memory 316, the applications 375, the modem 320, the transceiver 302 and/or its subcomponents, the RF front end 388 and/or its subcomponents, the communication component 322 and/or the determination component 324 of the BS 105 in the wireless communication network 100.
- the method 1000 may determine a first number of resources allocated for an uplink transmission.
- the determination component 324 of the BS 105 may determine N RE as described above.
- the processor 312, the modem 320, the processor 312, the memory 316, the applications 375, the modem 320, and/or the determination component 324 may be configured to and/or may define means for determining a first number of resources allocated for an uplink transmission.
- the method 1000 may determine a second number of resources allocated for control information in the uplink transmission.
- the determination component 324 of the BS 105 may determine Q′ ACK , Q′ CSI-1 , and/or Q′ CSI-2 as described above.
- the processor 312, the modem 320, the processor 312, the memory 316, the applications 375, the modem 320, and/or the determination component 324 may be configured to and/or may define means for determining a second number of resources allocated for control information in the uplink transmission.
- the method 1000 may determine a difference between the first number of resources and the second number of resources.
- the determination component 324 of the BS 105 may determine N RE - (Q′ ACK +Q′ CSI-1 +Q′ CSI-2 ) as described above.
- the processor 312, the modem 320, the processor 312, the memory 316, the applications 375, the modem 320, and/or the determination component 324 may be configured to and/or may define means for determining a difference between the first number of resources and the second number of resources.
- the method 1000 may determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers.
- the processor 312, the modem 320, the processor 312, the memory 316, the applications 375, the modem 320, and/or the determination component 324 may be configured to and/or may define means for determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers.
- the method 1000 may transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- the communication component 322, the modem 320, and/or the processor 312 of the BS 105 may transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- the communication component 322 may send the scheduling information to the transceiver 302 or the transmitter 304.
- the transceiver 302 or the transmitter 304 may convert the scheduling information to electrical signals and send to the RF front end 388.
- the RF front end 388 may filter and/or amplify the electrical signals.
- the RF front end 388 may send the electrical signals as electro-magnetic signals via the one or more antennas 365.
- the processor 312, the modem 320, the communication component 322, the transceiver 302, the receiver 306, the transmitter 308, the RF front end 388, and/or the subcomponents of the RF front end 388 may be configured to and/or may define means for transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- the method 1000 may further include any of the methods above, further comprising determining a third number of resources allocated for acknowledgement information in the uplink transmission, determining a fourth number of resources allocated for first channel state information in the uplink transmission, determining a fifth number of resources allocated for second channel state information in the uplink transmission, and wherein determining the second number of resources comprises adding at least one of the third number of resources or the fourth number of resources, and the fifth number of resources.
- the method 1000 may further include any of the methods above, wherein determining the second number of resources further comprises adding the third number of resources, the fourth number of resources, and the fifth number of resources.
- the method 1000 may further include any of the methods above, wherein determining the second number of resources further comprises adding the fourth number of resources and the fifth number of resources.
- the method 1000 may further include any of the methods above, wherein the second number of resources equals to a first sum of the fourth number of resources and the fifth number of resources if the acknowledgement information has two or less bits or a second sum of the third number of resources, fourth number of resources, and the fifth number of resources if the acknowledgement information has more than two bits.
- the method 1000 may further include any of the methods above, further comprising determining a third number of resources allocated for reserved acknowledgement information in the uplink transmission, determining a fourth number of resources allocated for acknowledgement information in the uplink transmission, determining a fifth number of resources allocated for first channel state information in the uplink transmission, determining a sixth number of resources allocated for second channel state information in the uplink transmission, and wherein determining the second number of resources comprises adding one of the third number of resources or the fourth number of resources, the fifth number of resources, and the sixth number of resources.
- the method 1000 may further include any of the methods above, wherein the second number of resources equals to a first sum of the third number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having two or less bits and a second sum of the fourth number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having more than two bits.
- the method 1000 may further include any of the methods above, wherein determining the second number of resources further comprises adding the third number of resources, the fifth number of resources, and the sixth number of resources.
- the method 1000 may further include any of the methods above, further comprising determining a third number of resources allocated for acknowledgement, a fourth number of resources allocated for first channel state information, or a fifth number of resources allocated for second channel state information using a first plurality of equations in response the data information being a new transmission and a second plurality of equations in response to the data information being a retransmission, wherein the first plurality of equations is different than the second plurality of equations.
- an example of a method 1100 for transmitting data information based on the resources allocated by the BS 105 may be performed by the one or more of the processor 212, the memory 216, the applications 275, the modem 220, the transceiver 202 and/or its subcomponents, the RF front end 288 and/or its subcomponents, and/or the communication component 222 of the UE 110 in the wireless communication network 100.
- the method 1100 may receive scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission.
- the communication component 222, the modem 220, and/or the processor 212 of the UE 110 may receive the scheduling information.
- the one or more antennas 265 may receive electro-magnetic signals.
- the RF front end 288 may receive the electrical signals converted from electro-magnetic signals.
- the RF front end 288 may filter and/or amplify the electrical signals.
- the transceiver 302 or the receiver 306 may convert the electrical signals to the scheduling information, and send the scheduling information to the communication component 322.
- the processor 212, the modem 220, the communication component 222, the transceiver 202, the receiver 206, the transmitter 208, the RF front end 288, and/or the subcomponents of the RF front end 288 may be configured to and/or may define means for receiving scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission.
- the method 1100 may transmit the data information via one or more of the available number of resources.
- the communication component 222, the modem 220, and/or the processor 212 of the UE 110 may transmit the data information via the available resources.
- the communication component 222 may send the data information to the transceiver 202 or the transmitter 204.
- the transceiver 202 or the transmitter 204 may convert the data information to electrical signals and send to the RF front end 288.
- the RF front end 288 may filter and/or amplify the electrical signals.
- the RF front end 288 may send the electrical signals as electro-magnetic signals via the one or more antennas 265.
- the processor 212, the modem 220, the communication component 222, the transceiver 202, the receiver 206, the transmitter 208, the RF front end 288, and/or the subcomponents of the RF front end 288 may be configured to and/or may define means for transmitting the data information via the available resources.
- a method includes determining a first number of resources allocated for an uplink transmission, determining a second number of resources allocated for control information in the uplink transmission, determining a difference between the first number of resources and the second number of resources, determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- any of the methods above further comprising determining a third number of resources allocated for acknowledgement information in the uplink transmission, determining a fourth number of resources allocated for first channel state information in the uplink transmission, determining a fifth number of resources allocated for second channel state information in the uplink transmission, and wherein determining the second number of resources comprises adding at least one of the third number of resources or the fourth number of resources, and the fifth number of resources.
- determining the second number of resources further comprises adding the third number of resources, the fourth number of resources, and the fifth number of resources.
- determining the second number of resources further comprises adding the fourth number of resources and the fifth number of resources.
- the second number of resources equals to a first sum of the fourth number of resources and the fifth number of resources if the acknowledgement information has two or less bits or a second sum of the third number of resources, fourth number of resources, and the fifth number of resources if the acknowledgement information has more than two bits.
- any of the methods above further comprising determining a third number of resources allocated for reserved acknowledgement information in the uplink transmission, determining a fourth number of resources allocated for acknowledgement information in the uplink transmission, determining a fifth number of resources allocated for first channel state information in the uplink transmission, determining a sixth number of resources allocated for second channel state information in the uplink transmission, and wherein determining the second number of resources comprises adding one of the third number of resources or the fourth number of resources, the fifth number of resources, and the sixth number of resources.
- the second number of resources equals to a first sum of the third number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having two or less bits and a second sum of the fourth number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having more than two bits.
- determining the second number of resources further comprises adding the third number of resources, the fifth number of resources, and the sixth number of resources.
- any of the methods above further comprising determining a third number of resources allocated for acknowledgement, a fourth number of resources allocated for first channel state information, or a fifth number of resources allocated for second channel state information using a first plurality of equations in response the data information being a new transmission and a second plurality of equations in response to the data information being a retransmission, wherein the first plurality of equations is different than the second plurality of equations.
- a UE may include a memory comprising instructions, a transceiver, and one or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to execute instructions in the memory to determine a first number of resources allocated for an uplink transmission, determine a second number of resources allocated for control information in the uplink transmission, determine a difference between the first number of resources and the second number of resources, determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- a non-transitory computer readable medium having instructions stored therein that, when executed by one or more processors of a user equipment (UE) , cause the one or more processors to determine a first number of resources allocated for an uplink transmission, determine a second number of resources allocated for control information in the uplink transmission, determine a difference between the first number of resources and the second number of resources, determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- UE user equipment
- a UE includes means for determining a first number of resources allocated for an uplink transmission, means for determining a second number of resources allocated for control information in the uplink transmission, means for determining a difference between the first number of resources and the second number of resources, means for determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and means for transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- a CDMA system may implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA) , etc.
- CDMA2000 covers IS-2000, IS-95, and IS-856 standards.
- IS-2000 Releases 0 and A are commonly referred to as CDMA2000 1X, 1X, etc.
- IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD) , etc.
- UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA.
- a TDMA system may implement a radio technology such as Global System for Mobile Communications (GSM) .
- GSM Global System for Mobile Communications
- An OFDMA system may implement a radio technology such as Ultra Mobile Broadband (UMB) , Evolved UTRA (E-UTRA) , IEEE 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM TM , etc.
- UMB Ultra Mobile Broadband
- E-UTRA Evolved UTRA
- Wi-Fi Wi-Fi
- WiMAX IEEE 802.16
- IEEE 802.20 Flash-OFDM TM
- UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS) .
- 3GPP LTE and LTE-Advanced (LTE-A) are new releases of UMTS that use E-UTRA.
- UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named “3rd Generation Partnership Project” (3GPP) .
- CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2) .
- the techniques described herein may be used for the systems and radio technologies mentioned above as well as other systems and radio technologies, including cellular (e.g., LTE) communications over a shared radio frequency spectrum band.
- LTE Long Term Evolution
- LTE terminology is used in much of the description below, although the techniques may be applicable other next generation communication systems.
- Information and signals may be represented using any of a variety of different technologies and techniques.
- data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.
- a specially-programmed device such as but not limited to a processor, a digital signal processor (DSP) , an ASIC, a FPGA or other programmable logic device, a discrete gate or transistor logic, a discrete hardware component, or any combination thereof designed to perform the functions described herein.
- DSP digital signal processor
- a specially-programmed processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
- a specially-programmed processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
- the functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a non-transitory computer-readable medium. Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, due to the nature of software, functions described above may be implemented using software executed by a specially programmed processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
- Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
- a storage medium may be any available medium that may be accessed by a general purpose or special purpose computer.
- computer-readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
- any connection is properly termed a computer-readable medium.
- Disk and disc include compact disc (CD) , laser disc, optical disc, digital versatile disc (DVD) , floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.
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Abstract
Aspects of the present disclosure include methods, apparatuses, and computer readable media for determining a first number of resources allocated for an uplink transmission, determining a second number of resources allocated for control information in the uplink transmission, determining a difference between the first number of resources and the second number of resources, determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
Description
Aspects of the present disclosure relate generally to wireless communications, and more particularly, to apparatuses and methods for determining transport block size.
Wireless communication networks are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . Examples of such multiple-access systems 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, and single-carrier frequency division multiple access (SC-FDMA) systems.
These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate on a municipal, national, regional, and even global level. For example, a fifth generation (5G) wireless communications technology (which may be referred to as new radio (NR) ) is envisaged to expand and support diverse usage scenarios and applications with respect to current mobile network generations. In an aspect, 5G communications technology may include: enhanced mobile broadband addressing human-centric use cases for access to multimedia content, services and data; ultra-reliable-low latency communications (URLLC) with certain specifications for latency and reliability; and massive machine type communications, which may allow a very large number of connected devices and transmission of a relatively low volume of non-delay-sensitive information. As the demand for mobile broadband access continues to increase, however, further improvements in NR communications technology and beyond may be desired.
In a wireless communication network, a base station (BS) may allocate resources to a user equipment (UE) for uplink data and control information. The BS may divide the resources between the data information and the control information. To accurately allocate resources for the data transmission, the BS may determine the transport block size (TBS) associated with the data transmission. The amount of resources allocated for the data information may impact the code rate used for the transmission of the data information. A higher code rate may allow the resource elements (REs) to transmit more information, but at a cost of lower transmission reliability. A lower code rate may allow the REs to transmit less information, but at a higher transmission reliability. Therefore, improvements in determining the amount of data information during uplink transmission may be desirable.
SUMMARY
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
Aspects of the present disclosure include methods for determining a first number of resources allocated for an uplink transmission, determining a second number of resources allocated for control information in the uplink transmission, determining a difference between the first number of resources and the second number of resources, determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
Other aspects of the present disclosure include a BS having a memory comprising instructions, a transceiver, and one or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to execute instructions in the memory to determine a first number of resources allocated for an uplink transmission, determine a second number of resources allocated for control information in the uplink transmission, determine a difference between the first number of resources and the second number of resources, determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
An aspect of the present disclosure includes a BS including means for determining a first number of resources allocated for an uplink transmission, means for determining a second number of resources allocated for control information in the uplink transmission, means for determining a difference between the first number of resources and the second number of resources, means for determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and means for transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
Some aspects of the present disclosure include non-transitory computer readable media having instructions stored therein that, when executed by one or more processors of a BS, cause the one or more processors to determine a first number of resources allocated for an uplink transmission, determine a second number of resources allocated for control information in the uplink transmission, determine a difference between the first number of resources and the second number of resources, determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
Aspects of the present disclosure includes a method for receiving scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission, and transmitting the data information via one or more of the available number of resources.
Other aspects of the present disclosure include a UE having a memory comprising instructions, a transceiver, and one or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to execute instructions in the memory to receive scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission, and transmit the data information via one or more of the available number of resources.
An aspect of the present disclosure includes a UE including means for receiving scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission, and means for transmitting the data information via one or more of the available number of resources.
Some aspects of the present disclosure include non-transitory computer readable media having instructions stored therein that, when executed by one or more processors of a UE, cause the one or more processors to receive scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission, and transmit the data information via one or more of the available number of resources.
To the accomplishment of the foregoing and related ends, the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents.
The disclosed aspects will hereinafter be described in conjunction with the appended drawings, provided to illustrate and not to limit the disclosed aspects, wherein like designations denote like elements, and in which:
FIG. 1 is a diagram illustrating an example of a wireless communications system and an access network;
FIG. 2 is a schematic diagram of an example of a user equipment;
FIG. 3 is a schematic diagram of an example of a base station;
FIG. 4 is schematic diagram of a first example of a resource configuration according to aspects of the present disclosure;
FIG. 5 is a schematic diagram of a second example of a resource configuration according to aspects of the present disclosure;
FIG. 6 is schematic diagram of a third example of a resource configuration according to aspects of the present disclosure;
FIG. 7 is a schematic diagram of a fourth example of a resource configuration according to aspects of the present disclosure;
FIG. 8 is a schematic diagram of a fifth example of a resource configuration according to aspects of the present disclosure;
FIG. 9 is a schematic diagram of examples of resource configurations having different numbers of HARQ-ACK bits according to aspects of the present disclosure;
FIG. 10 is a process flow diagram of an example of a method for determining resources for data transmission by the BS; and
FIG. 11 is a process flow diagram of an example of a method for transmitting data by the UE via the resources allocated.
An appendix, the contents of which are incorporated in their entireties, is attached.
The detailed description set forth below in connection with the appended drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some instances, well known structures and components are shown in block diagram form in order to avoid obscuring such concepts.
Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as “elements” ) . These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
By way of example, an element, or any portion of an element, or any combination of elements may be implemented as a “processing system” that includes one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs) , central processing units (CPUs) , application processors, digital signal processors (DSPs) , reduced instruction set computing (RISC) processors, systems on a chip (SoC) , baseband processors, field programmable gate arrays (FPGAs) , programmable logic devices (PLDs) , state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionality described throughout this disclosure. One or more processors in the processing system may execute software. Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
Accordingly, in one or more example embodiments, the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on or encoded as one or more instructions or code on a computer-readable medium. Computer-readable media includes computer storage media. Storage media may be any available media that may be accessed by a computer. By way of example, and not limitation, such computer-readable media may comprise a random-access memory (RAM) , a read-only memory (ROM) , an electrically erasable programmable ROM (EEPROM) , optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of the aforementioned types of computer-readable media, or any other medium that may be used to store computer executable code in the form of instructions or data structures that may be accessed by a computer.
In an implementation, a BS may allocate resources for the uplink (UL) and/or downlink (DL) data and/or control information. The allocated resources may be allocated between UL data transmissions (e.g., physical uplink shared channel (PUSCH) ) and UL control transmissions (e.g., physical uplink control channel (PUCCH) ) , or between DL data transmissions (e.g., physical downlink shared channel (PUSCH) ) and DL control transmission (e.g., physical downlink control channel (PDCCH) ) .
For the rate matching of uplink control indicator (UCI) on PUSCH, a code rate scaling factor
may be used to obtain a lower code rate than the indicated modulation coding scheme (MCS) . The number of resource elements (REs) per layer for UCI may be:
where N
RE, UCI is the total number of REs per layer of the PUSCH that the UCI can be mapped to, K
UL-SCHis the payload size of uplink shared channel (UL-SCH) including transport block (TB) cyclic redundancy check (CRC) bits (and possibly code block (CB) CRC bits if any) , and K
UCI is the number of UCI payload size including the CRC bits. To prevent the UCI from occupying too many resources of the PUSCH (and therefore, the UL-SCH has too little REs) , a portion factor α, (e.g., α∈ {0.5, 0.65, 0.8, 1.0} ) may be implemented to limit the max portion of resources that the UCI may occupy. The following equation may be used to limit the amount of REs for UCI:
In some instances, a UCI may be transmitted on PUSCH includes hybrid automatic repeat request acknowledgement (HARQ-ACK) and channel state information (CSI) , including CSI-part1 and CSI-part 2. HARQ-ACK, CSI-part1 and CSI-part 2 are separately encoded and rate-matched on PUSCH.
In certain implementations, for transport block size (TBS) determination of a data channel (PDSCH or PUSCH) , an intermediate value may be determined first by the following equation:
N
info=N
RE·R·Q
m·v.
where R is the indicated code rate, and Q
m is the modulation order, v is the number of layers; and N
RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to. In some implementations, overhead like DMRS may be excluded. In other implementations, N
RE=N
RE, UCI, except in some cases that DMRS symbols can be mapped with UL-SCH but not UCI, which makes N
RE, UCI a little smaller than N
RE. TBS may be determined based on the intermediate value N
info, with some optional quantization procedures relating to channel coding, channel block (CB) segmentation, and/or CRC bits attachment:
K
UL-SCH=TBS+L
CRC, TB+L
CRC, CB≈N
info=N
RE·R·Q
m·v,
where L
CRC, TB and L
CRC, CB are the length of TB CRC bits and CB CRC bits, respectively.
For a new data transmission, TBS (and thus K
UL-SCH) may be based on the total resources of PUSCH:
K
UL-SCH≈N
RE ·R·Q
m·v.
However, the actual resources allocated to UL-SCH may be lower than total N
RE because a portion of the resource may be allocated to the control information:
Q′
UL-SCH=N
RE-Q′
UCI=N
RE- (Q′
ACK+Q′
CSI-1+Q′
CSI-2) ,
where Q′
ACK, Q′
CSI-1, and Q′
CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
To improve the reliability of UL-SCH, the BS may schedule a lower code rate R. However, the number of UCI REs, e.g. HARQ-ACK REs, increases with decreasing R as shown below:
Here, O
ACK is the number of HARQ-ACK bits and L
ACK is the number of CRC bits for HARQ-ACK. In other words, the number of UCI REs is inversely proportional with R (assume it does not exceed the upper limit by α) , and would increase due to a lower R (so are Q′
CSI-1 and Q′
CSI-2) . Therefore, the number of UL-SCH REs Q′
UL-SCH would decrease with this lower R (if the total resources scheduled for the UL transmission is kept unchanged) , which hinders the reliability improvement.
In some aspects of the present disclosure, the BS may compute the TBS by subtracting the control resources from the total resources allocated for transmission. For example, the BS may determine the TBS by subtracting the resources allocated for HARQ-ACK, CSI-part1, and CSI-part2 from the total resources. In another example, the BS may determine the TBS by subtracting the resources allocated for CSI-part1 and CSI-part2 from the total resources. In an example, the BS may determine the TBS by subtracting the resources allocated for reserved HARQ-ACK, CSI-part1, and CSI-part2 from the total resources.
FIG. 1 is a diagram illustrating an example of a wireless communications system and an access network 100. The wireless communications system (also referred to as a wireless wide area network (WWAN) ) includes at least one BS 105, UEs 110, an Evolved Packet Core (EPC) 160, and a 5G Core (5GC) 190. The BS 105 may include macro cells (high power cellular base station) and/or small cells (low power cellular base station) . The macro cells include base stations. The small cells include femtocells, picocells, and microcells. In one implementation, the UE 110 may include a communication component 222. The communication component 222 and/or a modem 220 of the UE 110 may be configured to communicate with the BS 105 via a cellular network, a Wi-Fi network, or other wireless and wired networks. In some implementations, the BS 105 may include a communication component 322 configured to communicate with the UE 110. The BS 105 may include a determination component 324 that determines an amount of resources allocated for data information after subtracting control information from the total information allocated.
A BS 105 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) ) may interface with the EPC 160 through backhaul links interfaces 132 (e.g., S1, X2, Internet Protocol (IP) , or flex interfaces) . A BS 105 configured for 5G NR (collectively referred to as Next Generation RAN (NG-RAN) ) may interface with 5GC 190 through backhaul links interfaces 134 (e.g., S1, X2, Internet Protocol (IP) , or flex interface) . In addition to other functions, the BS 105 may perform one or more of the following functions: transfer of user data, radio channel ciphering and deciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity) , inter-cell interference coordination, connection setup and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS) , subscriber and equipment trace, RAN information management (RIM) , paging, positioning, and delivery of warning messages. The BS 105 may communicate directly or indirectly (e.g., through the EPC 160 or 5GC 190) with each other over the backhaul links interfaces 134. The backhaul links 132, 134 may be wired or wireless.
The BS 105 may wirelessly communicate with the UEs 110. Each of the BS 105 may provide communication coverage for a respective geographic coverage area 130. There may be overlapping geographic coverage areas 130. For example, the small cell 105' may have a coverage area 130' that overlaps the coverage area 130 of one or more macro BS 105. A network that includes both small cell and macro cells may be known as a heterogeneous network. A heterogeneous network may also include Home Evolved Node Bs (eNBs) (HeNBs) , which may provide service to a restricted group known as a closed subscriber group (CSG) . The communication links 120 between the BS 105 and the UEs 110 may include uplink (UL) (also referred to as reverse link) transmissions from a UE 110 to a BS 105 and/or downlink (DL) (also referred to as forward link) transmissions from a BS 105 to a UE 110. The communication links 120 may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and/or transmit diversity. The communication links may be through one or more carriers. The BS 105 /UEs 110 may use spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) bandwidth per carrier allocated in a carrier aggregation of up to a total of Y
x MHz (x component carriers) used for transmission in each direction. The carriers may or may not be adjacent 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 component carriers may include a primary component carrier and one or more secondary component carriers. A primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell) .
The wireless communications system may further include a Wi-Fi access point (AP) 150 in communication with Wi-Fi stations (STAs) 152 via communication links 154 in a 5 GHz unlicensed frequency spectrum. When communicating in an unlicensed frequency spectrum, the STAs 152 /AP 150 may perform a clear channel assessment (CCA) prior to communicating in order to determine whether the channel is available.
The small cell 105' may operate in a licensed and/or an unlicensed frequency spectrum. When operating in an unlicensed frequency spectrum, the small cell 105' may employ NR and use the same 5 GHz unlicensed frequency spectrum as used by the Wi-Fi AP 150. The small cell 105', employing NR in an unlicensed frequency spectrum, may boost coverage to and/or increase capacity of the access network.
A BS 105, whether a small cell 105' or a large cell (e.g., macro base station) , may include an eNB, gNodeB (gNB) , or other type of base station. Some base stations, such as gNB 180 may operate in a traditional sub 6 GHz spectrum, in millimeter wave (mmW) frequencies, and/or near mmW frequencies in communication with the UE 110. When the gNB 180 operates in mmW or near mmW frequencies, the gNB 180 may be referred to as an mmW base station. Extremely high frequency (EHF) is part of the radio frequency (RF) in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters. Radio waves in the band may be referred to as a millimeter wave. Near mmW may extend down to a frequency of 3 GHz with a wavelength of 100 millimeters. The super high frequency (SHF) band extends between 3 GHz and 30 GHz, also referred to as centimeter wave. Communications using the mmW /near mmW radio frequency band has extremely high path loss and a short range. The mmW base station 180 may utilize beamforming 182 with the UE 110 to compensate for the path loss and short range.
The EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172. The MME 162 may be in communication with a Home Subscriber Server (HSS) 174. The MME 162 is the control node that processes the signaling between the UEs 110 and the EPC 160. Generally, the MME 162 provides bearer and connection management. All user Internet protocol (IP) packets are transferred through the Serving Gateway 166, which itself is connected to the PDN Gateway 172. The PDN Gateway 172 provides UE IP address allocation as well as other functions. The PDN Gateway 172 and the BM-SC 170 are connected to the IP Services 176. The IP Services 176 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a PS Streaming Service, and/or other IP services. The BM-SC 170 may provide functions for MBMS user service provisioning and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN) , and may be used to schedule MBMS transmissions. The MBMS Gateway 168 may be used to distribute MBMS traffic to the BS 105 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and may be responsible for session management (start/stop) and for collecting eMBMS related charging information.
The 5GC 190 may include a Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195. The AMF 192 may be in communication with a Unified Data Management (UDM) 196. The AMF 192 is the control node that processes the signaling between the UEs 110 and the 5GC 190. Generally, the AMF 192 provides QoS flow and session management. All user Internet protocol (IP) packets are transferred through the UPF 195. The UPF 195 provides UE IP address allocation as well as other functions. The UPF 195 is connected to the IP Services 197. The IP Services 197 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a PS Streaming Service, and/or other IP services.
The BS 105 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, an access point, an access node, a radio transceiver, a NodeB, eNodeB (eNB) , gNB, Home NodeB, a Home eNodeB, a relay, a transceiver function, a basic service set (BSS) , an extended service set (ESS) , a transmit reception point (TRP) , or some other suitable terminology. The BS 105 provides an access point to the EPC 160 or 5GC 190 for a UE 110. Examples of UEs 110 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 sensor/actuator, a display, or any other similar functioning device. Some of the UEs 110 may be referred to as IoT devices (e.g., parking meter, gas pump, toaster, vehicles, heart monitor, etc. ) . The UE 110 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.
Referring to FIG. 2, one example of an implementation of the UE 110 may include a modem 220 having a communication component 222. The communication component 222 and/or the modem 220 of the UE 110 may be configured to communicate with the BS 105 via a cellular network, a Wi-Fi network, or other wireless and wired networks.
In some implementations, the UE 110 may include a variety of components, including components such as one or more processors 212 and memory 216 and transceiver 202 in communication via one or more buses 244, which may operate in conjunction with the modem 220 and the communication component 222 to enable one or more of the functions described herein related to communicating with the BS 105. Further, the one or more processors 212, modem 220, memory 216, transceiver 202, RF front end 288 and one or more antennas 265, may be configured to support voice and/or data calls (simultaneously or non-simultaneously) in one or more radio access technologies. The one or more antennas 265 may include one or more antennas, antenna elements and/or antenna arrays.
In an aspect, the one or more processors 212 may include the modem 220 that uses one or more modem processors. The various functions related to the communication component 222 may be included in the modem 220 and/or processors 212 and, in an aspect, may be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors. For example, in an aspect, the one or more processors 212 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiving device processor, or a transceiver processor associated with transceiver 202. Additionally, the modem 220 may configure the UE 110 along with the processors 212. In other aspects, some of the features of the one or more processors 212 and/or the modem 220 associated with the communication component 222 may be performed by transceiver 202.
Also, memory 216 may be configured to store data used herein and/or local versions of applications 275 or the communication component 222 and/or one or more subcomponents of the communication component 222 being executed by at least one processor 212. Memory 216 may include any type of computer-readable medium usable by a computer or at least one processor 212, such as random access memory (RAM) , read only memory (ROM) , tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof. In an aspect, for example, memory 216 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the communication component 222 and/or one or more of its subcomponents, and/or data associated therewith, when UE 110 is operating at least one processor 212 to execute the communication component 222 and/or one or more of the subcomponents.
Moreover, in an aspect, UE 110 may include RF front end 288, which may operate in communication with one or more antennas 265 and transceiver 202 for receiving and transmitting radio transmissions, for example, wireless communications transmitted by at least one BS 105 or wireless transmissions transmitted by UE 110. RF front end 288 may be coupled with one or more antennas 265 and may include one or more low-noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.
In an aspect, LNA 290 may amplify a received signal at a desired output level. In an aspect, each LNA 290 may have a specified minimum and maximum gain values. In an aspect, RF front end 288 may use one or more switches 292 to select a particular LNA 290 and the specified gain value based on a desired gain value for a particular application.
Further, for example, one or more PA (s) 298 may be used by RF front end 288 to amplify a signal for an RF output at a desired output power level. In an aspect, each PA 298 may have specified minimum and maximum gain values. In an aspect, RF front end 288 may use one or more switches 292 to select a particular PA 298 and the specified gain value based on a desired gain value for a particular application.
Also, for example, one or more filters 296 may be used by RF front end 288 to filter a received signal to obtain an input RF signal. Similarly, in an aspect, for example, a respective filter 296 may be used to filter an output from a respective PA 298 to produce an output signal for transmission. In an aspect, each filter 296 may be coupled with a specific LNA 290 and/or PA 298. In an aspect, RF front end 288 may use one or more switches 292 to select a transmit or receive path using a specified filter 296, LNA 290, and/or PA 298, based on a configuration as specified by transceiver 202 and/or processor 212.
As such, transceiver 202 may be configured to transmit and receive wireless signals through one or more antennas 265 via RF front end 288. In an aspect, transceiver may be tuned to operate at specified frequencies such that UE 110 may communicate with, for example, one or more BS 105 or one or more cells associated with one or more BS 105. In an aspect, for example, the modem 220 may configure transceiver 202 to operate at a specified frequency and power level based on the UE configuration of the UE 110 and the communication protocol used by the modem 220.
In an aspect, the modem 220 may be a multiband-multimode modem, which may process digital data and communicate with transceiver 202 such that the digital data is sent and received using transceiver 202. In an aspect, the modem 220 may be multiband and be configured to support multiple frequency bands for a specific communications protocol. In an aspect, the modem 220 may be multimode and be configured to support multiple operating networks and communications protocols. In an aspect, the modem 220 may control one or more components of UE 110 (e.g., RF front end 288, transceiver 202) to enable transmission and/or reception of signals from the network based on a specified modem configuration. In an aspect, the modem configuration may be based on the mode of the modem and the frequency band in use. In another aspect, the modem configuration may be based on UE configuration information associated with UE 110 as provided by the network.
Referring to FIG. 3, one example of an implementation of the BS 105 may include a modem 320 with a communication component 322 configured to transmit data. The communication component 322 and/or the modem 320 the BS 105 may be configured to communicate with the UE 110 via a cellular network, a Wi-Fi network, or other wireless and wired networks.
In some implementations, the BS 105 may include a variety of components, including components such as one or more processors 312 and memory 316 and transceiver 302 in communication via one or more buses 344, which may operate in conjunction with the modem 320 and the communication component 322 to enable one or more of the functions described herein related to communicating with the UE 110. Further, the one or more processors 312, modem 320, memory 316, transceiver 302, RF front end 388 and one or more antennas 365, may be configured to support voice and/or data calls (simultaneously or non-simultaneously) in one or more radio access technologies.
In an aspect, the one or more processors 312 may include the modem 320 that uses one or more modem processors. The various functions related to the communication component 322 and/or the determination component 324 may be included in the modem 320 and/or processors 312 and, in an aspect, may be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors. For example, in an aspect, the one or more processors 312 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiving device processor, or a transceiver processor associated with transceiver 302. Additionally, the modem 320 may configure the BS 105 and processors 312. In other aspects, some of the features of the one or more processors 312 and/or the modem 320 associated with the communication component 322 and/or the determination component 324 may be performed by transceiver 302.
Also, memory 316 may be configured to store data used herein and/or local versions of applications 375 or the communication component 322, the determination component, and/or one or more subcomponents of the communication component 322 or the determination component being executed by at least one processor 312. Memory 316 may include any type of computer-readable medium usable by a computer or at least one processor 312, such as random access memory (RAM) , read only memory (ROM) , tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof. In an aspect, for example, memory 316 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the communication component 322, the determination component, and/or one or more of its subcomponents, and/or data associated therewith, when the BS 105 is operating at least one processor 312 to execute the communication component 322, the determination component, and/or one or more of the subcomponents.
Moreover, in an aspect, the BS 105 may include RF front end 388, which may operate in communication with one or more antennas 365 and transceiver 302 for receiving and transmitting radio transmissions, for example, wireless communications transmitted by other BS 105 or wireless transmissions transmitted by UE 110. RF front end 388 may be coupled with one or more antennas 365 and may include one or more low-noise amplifiers (LNAs) 390, one or more switches 392, one or more power amplifiers (PAs) 398, and one or more filters 396 for transmitting and receiving RF signals.
In an aspect, LNA 390 may amplify a received signal at a desired output level. In an aspect, each LNA 390 may have a specified minimum and maximum gain values. In an aspect, RF front end 388 may use one or more switches 392 to select a particular LNA 390 and the specified gain value based on a desired gain value for a particular application.
Further, for example, one or more PA (s) 398 may be used by RF front end 388 to amplify a signal for an RF output at a desired output power level. In an aspect, each PA 398 may have specified minimum and maximum gain values. In an aspect, RF front end 388 may use one or more switches 392 to select a particular PA 398 and the specified gain value based on a desired gain value for a particular application.
Also, for example, one or more filters 396 may be used by RF front end 388 to filter a received signal to obtain an input RF signal. Similarly, in an aspect, for example, a respective filter 396 may be used to filter an output from a respective PA 398 to produce an output signal for transmission. In an aspect, each filter 396 may be coupled with a specific LNA 390 and/or PA 398. In an aspect, RF front end 388 may use one or more switches 392 to select a transmit or receive path using a specified filter 396, LNA 390, and/or PA 398, based on a configuration as specified by transceiver 302 and/or processor 312.
As such, transceiver 302 may be configured to transmit and receive wireless signals through one or more antennas 365 via RF front end 388. In an aspect, transceiver may be tuned to operate at specified frequencies such that BS 105 may communicate with, for example, the UE 110 or one or more cells associated with one or more BS 105. In an aspect, for example, the modem 320 may configure transceiver 302 to operate at a specified frequency and power level based on the base station configuration of the BS 105 and the communication protocol used by the modem 320.
In an aspect, the modem 320 may be a multiband-multimode modem, which may process digital data and communicate with transceiver 302 such that the digital data is sent and received using transceiver 302. In an aspect, the modem 320 may be multiband and be configured to support multiple frequency bands for a specific communications protocol. In an aspect, the modem 320 may be multimode and be configured to support multiple operating networks and communications protocols. In an aspect, the modem 320 may control one or more components of the BS 105 (e.g., RF front end 388, transceiver 302) to enable transmission and/or reception of signals from the network based on a specified modem configuration. In an aspect, the modem configuration may be based on the mode of the modem and the frequency band in use. In another aspect, the modem configuration may be based on base station configuration associated with the BS 105.
Turning to Fig. 4, in an implementation, an example of a resource configuration 400 may be allocated by the BS 105. The resource configuration 400 may be allocated for UL transmission of data and/or control information by the UE 110. The resource configuration 400 may include CSI-part1 REs 410, HARQ-ACK REs 412, CSI-part2 REs 414, and UL-SCH REs 416. The BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 410, HARQ-ACK REs 412, and CSI-part2 REs 414, from the total resource allocated for the UL transmission. In one non-limiting example, an intermediate value N
info may be computed using the following equation:
N
info= (N
RE- (Q′
ACK+Q′
CSI-1+Q′
CSI-2) ) ·R·Q
m·v,
where R indicates code rate, and Q
m is the modulation order, v is the number of layers; and N
RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to. The terms Q′
ACK, Q′
CSI-1, and Q′
CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
In some implementations, in the equation above, Q′
ACK may be determined by the following equation:
where O
ACK is the number of HARQ-ACK bits, L
ACK is the number of HARQ-ACK CRC bits (e.g., L
ACK=11 if O
ACK≥360) , C
UL-SCH is the number of code blocks for the UL-SCH of the uplink transmission, K
r is the r-th code block size for the UL-SCH of the uplink transmission,
is the scheduled bandwidth of the uplink transmission (e.g., expressed in a number of subcarriers) ,
is the number of subcarriers in symbol l that carriers the reference signals during the uplink transmission,
is the number of resource elements that can be used for transmission of control information in the symbol l, α is the scaling parameter, l
0 is the symbol index of the first symbol that does not carry the reference signal of the uplink transmission, and
In one example, the BS 105 may compute the term Q′
CSI-1 using the equation below:
where O
CSI-1 is the number of bits for CSI-part1, L
CSI-1 is number of CRC bits for CSI-part1, and
The term Q″
ACK is the number of coded modulation symbols per layer for HARQ-ACK transmitted on the uplink transmission if the number of HARQ-ACK information bits is more than two bits (e.g., Q″
ACK=Q′
ACK) , and
if the number of HARQ-ACK in formation bits is two or less bits. The term
is the number of reserved REs for potential HARQ-ACK transmission in symbol l, for
in the uplink transmission.
In one example, the BS 105 may compute the term Q′
CSI-2 using the equation below:
where O
CSI-2 is the number of bits for CSI-part2, L
CSI-2 is number of CRC bits for CSI-part2, and
The term Q″′
ACK is the number of coded modulation symbols per layer for HARQ-ACK transmitted on the uplink transmission if the number of HARQ-ACK information bits is more than two bits (e.g., Q″′
ACK=Q′
ACK) , and Q″′
ACK=0 if the number of HARQ-ACK in formation bits is two or less bits.
If the UL-SCH is for a new data transmission, the terms Q′
ACK, Q′
CSI-1, and Q′
CSI-2 may be determined based on the equations above, with one or more of the following changes. The derivation for Q′
ACK, Q′
CSI-1, and Q′
CSI-2 may be different for UL-SCH being a new transmission and a retransmissions. In a first example, for UL-SCH being a new transmission, code block size K
r in the denominator are determined by a “virtual TBS” based on N
RE:
N
info, virtual=N
RE·R·Q
m·v.
In an example, the BS 105 may compute the virtual transport block size (virtual TBS) of the resource allocated for data transmission. For N
info, virtual>3824, the BS 105 may determine a quantized value using the following equation:
Other methods may be utilized to compute the TBS based on N
info, virtual.
In a second example, for UL-SCH being a new transmission, the terms Q′
ACK, Q′
CSI-1, and Q′
CSI-2 may be calculated by modifying one or more of the equations above. For example, the term Q′
ACK may be calculated using the following modified equation:
The term Q′
CSI-1 may be calculated using the following modified equation:
The term Q′
CSI-2 may be calculated using the following modified equation:
In a third example, for UL-SCH being a new transmission, the terms Q′
ACK, Q′
CSI-1, and Q′
CSI-2 may be calculated by modifying one or more of the equations above. For example, the term Q′
ACK may be calculated using the following modified equation:
The term Q′
CSI-1 may be calculated using the following modified equation:
The term Q′
CSI-2 may be calculated using the following modified equation:
Other methods of deriving the terms Q′
ACK, Q′
CSI-1, and Q′
CSI-2 are possible.
In an example, the BS 105 may compute the transport block size (TBS) of the resource allocated for data transmission. For N
info>3824, the BS 105 may determine a quantized value using the following equation:
Other methods may be utilized to compute the TBS based on N
info.
Turning to Fig. 5, in an implementation, an example of a resource configuration 500 may be allocated by the BS 105. The resource configuration may be allocated for UL transmission of data and/or control information by the UE 110. The resource configuration 500 may include CSI-part1 REs 510, CSI-part2 REs 514, and UL-SCH REs 516. The BS 105 may omit the HARQ-ACK REs to avoid the ambiguity of whether HARQ-ACK exists due to the possibly miss-detected downlink control information (e.g., PDCCH) for the corresponding downlink (e.g., PDSCH) scheduling. The BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 510 and CSI-part2 REs 514, from the total resource allocated for the UL transmission. In one non-limiting example, an intermediate value N
info may be computed using the following equation:
N
info= (N
RE- (Q′
CSI-1+Q′
CSI-2) ) ·R·Q
m·v,
where R indicates code rate, and Q
m is the modulation order, v is the number of layers; and N
RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to. Q′
CSI-1 and Q′
CSI-2 are the resources for CSI-part1 and CSI-part2, respectively. The terms Q′
CSI-1 and Q′
CSI-2 and the value of the TBS may be computed as discussed above.
Turning to Fig. 6, in an implementation, an example of a resource configuration 600 may be allocated by the BS 105. The resource configuration 600 may be allocated for UL transmission of data and/or control information by the UE 110. The allocation may be determined on a number of HARQ-ACK bits or reserved HARQ-ACK bits. The resource configuration 600 may include CSI-part1 REs 610, HARQ-ACK REs 612, CSI-part2 REs 614, and UL-SCH REs 616. The amount of HARQ-ACK REs 612 may be different depending on the amount of HARQ-ACK bits in the payload. The BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 610, CSI-part2 REs 614, and HARQ-ACK REs 612, from the total resource allocated for the UL transmission. In one non-limiting example, an intermediate value N
info may be computed using the following equation:
N
info= (N
RE- (Q′
CSI-1+Q′
CSI-2) ) ·R·Q
m·v,
if the payload associated with the HARQ-ACK REs 612 includes two or less bits, and
N
info= (N
RE- (Q′
ACK+Q′
CSI-1+Q′
CSI-2) ) ·R·Q
m·v,
If the payload associated with the HARQ-ACK REs 612 includes more than two bits.
Here, R indicates code rate, and Q
m is the modulation order, v is the number of layers; and N
RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to. The terms Q′
ACK, Q′
CSI-1, and Q′
CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
Turning to Fig. 7, in an implementation, an example of a resource configuration 700 may be allocated by the BS 105. The resource configuration 700 may be allocated for UL transmission of data and/or control information by the UE 110. The allocation may be determined on a number of HARQ-ACK bits or reserved HARQ-ACK bits. The resource configuration 700 may include CSI-part1 REs 710, HARQ-ACK REs 712, CSI-part2 REs 714, and UL-SCH REs 716. The amount of HARQ-ACK REs 712 may be different depending on the amount of HARQ-ACK bits in the payload. The BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 710, HARQ-ACK REs 712, and CSI-part2 REs 714, from the total resource allocated for the UL transmission. In one non-limiting example, an intermediate value N
info may be computed using the following equation:
N
info= (N
RE- (Q′
ACK, rvd+Q′
CSI-1+Q′
CSI-2) ) ·R·Q
m·v,
if the payload associated with the HARQ-ACK REs 712 includes two or less bits, and
N
info= (N
RE- (Q′
ACK+Q′
CSI-1+Q′
CSI-2) ) ·R·Q
m·v,
If the payload associated with the HARQ-ACK REs 712 includes more than two bits.
Here, Q′
ACK, rvd is the reserved number of REs for potential HARQ-ACK transmission when the HARQ-ACK payload size includes two or less bits (the reserved HARQ-ACK REs would puncture the CSI REs or UL-SCH REs when mapped on PUSCH) , R indicates code rate, and Q
m is the modulation order, v is the number of layers; and N
RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to. The terms Q′
ACK, Q′
CSI-1, and Q′
CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
The term Q′
ACK, rvd may be determined using one or more of the equations described above. For example, the term may be determined using the following equation:
by assuming the potential HARQ-ACK payload bits corresponding to reserved REs is 2.
Other equations may also be used to determine the amount of reserved bits for potential HARQ-ACK transmission.
Turning to Fig. 8, in an implementation, an example of a resource configuration 800 may be allocated by the BS 105. The resource configuration 800 may be allocated for UL transmission of data and/or control information by the UE 110. The resource configuration 800 may include CSI-part1 REs 810, HARQ-ACK REs 812, CSI-part2 REs 814, and UL-SCH REs 816. The amount of HARQ-ACK REs 812 may be different depending on the amount of HARQ-ACK bits in the payload. The BS 105 may determine the amount of resource allocated to the data transmission by subtracting the resource allocated to the control information, such as the CSI-part1 REs 810, HARQ-ACK REs 812, and CSI-part2 REs 814, from the total resource allocated for the UL transmission. In one non-limiting example, an intermediate value N
info may be computed using the following equation:
N
info= (N
RE- (Q′
ACK, rvd+Q′
CSI-1+Q′
CSI-2) ) ·R·Q
m·v,
Here, Q′
ACK, rvd is the reserved number of REs for potential HARQ-ACK transmission when the HARQ-ACK payload size includes two or less bits, R indicates code rate, and Q
m is the modulation order, v is the number of layers; and N
RE is the total number of REs per layer of the data channel (e.g., PUSCH) that resources (e.g., UL-SCH) may be mapped to. The terms Q′
ACK, Q′
CSI-1, and Q′
CSI-2 are the resources for HARQ-ACK, CSI-part1, and CSI-part2, respectively.
The term Q′
ACK, rvd may be determined using one or more of the equations described above. For example, the term may be determined using the following equation:
by assuming the potential HARQ-ACK payload bits corresponding to reserved REs is 2.
Other equations may also be used to determine the amount of reserved bits for potential HARQ-ACK transmission.
Turning to Fig. 9, in an implementation, examples of a first resource configuration 900 and a second resource configuration 950 may be allocated by the BS 105. The resource configurations 900, 950 may be allocated for UL transmission of data and/or control information by the UE 110. The resource configurations 900, 950 may each include CSI-part1 REs 910, reference signals 911 (e.g., demodulation reference signals, synchronization reference signals, channel state information reference signals, phase tracking reference signals, etc. ) HARQ-ACK REs 912, CSI-part2 REs 914, and UL-SCH REs 916. The first resource configuration 900 may be configured when the payload for the HARQ-ACK transmission includes two or less bits. The second resource configuration 950 may be configured when the payload for the HARQ-ACK transmission includes more than two bits.
Referring to Fig. 10, an example of a method 1000 for determining a number of resources for uplink data transmission may be performed by the one or more of the processor 312, the memory 316, the applications 375, the modem 320, the transceiver 302 and/or its subcomponents, the RF front end 388 and/or its subcomponents, the communication component 322 and/or the determination component 324 of the BS 105 in the wireless communication network 100.
At block 1005, the method 1000 may determine a first number of resources allocated for an uplink transmission. For example, the determination component 324 of the BS 105 may determine N
RE as described above.
In certain implementations, the processor 312, the modem 320, the processor 312, the memory 316, the applications 375, the modem 320, and/or the determination component 324 may be configured to and/or may define means for determining a first number of resources allocated for an uplink transmission.
At block 1010, the method 1000 may determine a second number of resources allocated for control information in the uplink transmission. For example, the determination component 324 of the BS 105 may determine Q′
ACK, Q′
CSI-1, and/or Q′
CSI-2 as described above.
In certain implementations, the processor 312, the modem 320, the processor 312, the memory 316, the applications 375, the modem 320, and/or the determination component 324 may be configured to and/or may define means for determining a second number of resources allocated for control information in the uplink transmission.
At block 1015, the method 1000 may determine a difference between the first number of resources and the second number of resources. For example, the determination component 324 of the BS 105 may determine N
RE- (Q′
ACK+Q′
CSI-1+Q′
CSI-2) as described above.
In certain implementations, the processor 312, the modem 320, the processor 312, the memory 316, the applications 375, the modem 320, and/or the determination component 324 may be configured to and/or may define means for determining a difference between the first number of resources and the second number of resources.
At block 1020, the method 1000 may determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers. For example, the determination component 324 of the BS 105 may determine N
info= (N
RE- (Q′
ACK+Q′
CSI-1+Q′
CSI-2) ) ·R·Q
m·v.
In certain implementations, the processor 312, the modem 320, the processor 312, the memory 316, the applications 375, the modem 320, and/or the determination component 324 may be configured to and/or may define means for determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers.
At block 1025, the method 1000 may transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission. For example, the communication component 322, the modem 320, and/or the processor 312 of the BS 105 may transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission. The communication component 322 may send the scheduling information to the transceiver 302 or the transmitter 304. The transceiver 302 or the transmitter 304 may convert the scheduling information to electrical signals and send to the RF front end 388. The RF front end 388 may filter and/or amplify the electrical signals. The RF front end 388 may send the electrical signals as electro-magnetic signals via the one or more antennas 365.
In certain implementations, the processor 312, the modem 320, the communication component 322, the transceiver 302, the receiver 306, the transmitter 308, the RF front end 388, and/or the subcomponents of the RF front end 388 may be configured to and/or may define means for transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
Alternatively or additionally, the method 1000 may further include any of the methods above, further comprising determining a third number of resources allocated for acknowledgement information in the uplink transmission, determining a fourth number of resources allocated for first channel state information in the uplink transmission, determining a fifth number of resources allocated for second channel state information in the uplink transmission, and wherein determining the second number of resources comprises adding at least one of the third number of resources or the fourth number of resources, and the fifth number of resources.
Alternatively or additionally, the method 1000 may further include any of the methods above, wherein determining the second number of resources further comprises adding the third number of resources, the fourth number of resources, and the fifth number of resources.
Alternatively or additionally, the method 1000 may further include any of the methods above, wherein determining the second number of resources further comprises adding the fourth number of resources and the fifth number of resources.
Alternatively or additionally, the method 1000 may further include any of the methods above, wherein the second number of resources equals to a first sum of the fourth number of resources and the fifth number of resources if the acknowledgement information has two or less bits or a second sum of the third number of resources, fourth number of resources, and the fifth number of resources if the acknowledgement information has more than two bits.
Alternatively or additionally, the method 1000 may further include any of the methods above, further comprising determining a third number of resources allocated for reserved acknowledgement information in the uplink transmission, determining a fourth number of resources allocated for acknowledgement information in the uplink transmission, determining a fifth number of resources allocated for first channel state information in the uplink transmission, determining a sixth number of resources allocated for second channel state information in the uplink transmission, and wherein determining the second number of resources comprises adding one of the third number of resources or the fourth number of resources, the fifth number of resources, and the sixth number of resources.
Alternatively or additionally, the method 1000 may further include any of the methods above, wherein the second number of resources equals to a first sum of the third number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having two or less bits and a second sum of the fourth number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having more than two bits.
Alternatively or additionally, the method 1000 may further include any of the methods above, wherein determining the second number of resources further comprises adding the third number of resources, the fifth number of resources, and the sixth number of resources.
Alternatively or additionally, the method 1000 may further include any of the methods above, further comprising determining a third number of resources allocated for acknowledgement, a fourth number of resources allocated for first channel state information, or a fifth number of resources allocated for second channel state information using a first plurality of equations in response the data information being a new transmission and a second plurality of equations in response to the data information being a retransmission, wherein the first plurality of equations is different than the second plurality of equations.
Referring to Fig. 11, an example of a method 1100 for transmitting data information based on the resources allocated by the BS 105 may be performed by the one or more of the processor 212, the memory 216, the applications 275, the modem 220, the transceiver 202 and/or its subcomponents, the RF front end 288 and/or its subcomponents, and/or the communication component 222 of the UE 110 in the wireless communication network 100.
At block 1105, the method 1100 may receive scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission. For example, the communication component 222, the modem 220, and/or the processor 212 of the UE 110 may receive the scheduling information. The one or more antennas 265 may receive electro-magnetic signals. The RF front end 288 may receive the electrical signals converted from electro-magnetic signals. The RF front end 288 may filter and/or amplify the electrical signals. The transceiver 302 or the receiver 306 may convert the electrical signals to the scheduling information, and send the scheduling information to the communication component 322.
In certain implementations, the processor 212, the modem 220, the communication component 222, the transceiver 202, the receiver 206, the transmitter 208, the RF front end 288, and/or the subcomponents of the RF front end 288 may be configured to and/or may define means for receiving scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission.
At block 1110, the method 1100 may transmit the data information via one or more of the available number of resources. For example, the communication component 222, the modem 220, and/or the processor 212 of the UE 110 may transmit the data information via the available resources. The communication component 222 may send the data information to the transceiver 202 or the transmitter 204. The transceiver 202 or the transmitter 204 may convert the data information to electrical signals and send to the RF front end 288. The RF front end 288 may filter and/or amplify the electrical signals. The RF front end 288 may send the electrical signals as electro-magnetic signals via the one or more antennas 265.
In certain implementations, the processor 212, the modem 220, the communication component 222, the transceiver 202, the receiver 206, the transmitter 208, the RF front end 288, and/or the subcomponents of the RF front end 288 may be configured to and/or may define means for transmitting the data information via the available resources.
ADDITIONAL IMPLEMENTATIONS
In an aspect, a method includes determining a first number of resources allocated for an uplink transmission, determining a second number of resources allocated for control information in the uplink transmission, determining a difference between the first number of resources and the second number of resources, determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
Any of the methods above, further comprising determining a third number of resources allocated for acknowledgement information in the uplink transmission, determining a fourth number of resources allocated for first channel state information in the uplink transmission, determining a fifth number of resources allocated for second channel state information in the uplink transmission, and wherein determining the second number of resources comprises adding at least one of the third number of resources or the fourth number of resources, and the fifth number of resources.
Any of the methods above, wherein determining the second number of resources further comprises adding the third number of resources, the fourth number of resources, and the fifth number of resources.
Any of the methods above, wherein determining the second number of resources further comprises adding the fourth number of resources and the fifth number of resources.
Any of the methods above, wherein the second number of resources equals to a first sum of the fourth number of resources and the fifth number of resources if the acknowledgement information has two or less bits or a second sum of the third number of resources, fourth number of resources, and the fifth number of resources if the acknowledgement information has more than two bits.
Any of the methods above, further comprising determining a third number of resources allocated for reserved acknowledgement information in the uplink transmission, determining a fourth number of resources allocated for acknowledgement information in the uplink transmission, determining a fifth number of resources allocated for first channel state information in the uplink transmission, determining a sixth number of resources allocated for second channel state information in the uplink transmission, and wherein determining the second number of resources comprises adding one of the third number of resources or the fourth number of resources, the fifth number of resources, and the sixth number of resources.
Any of the methods above, wherein the second number of resources equals to a first sum of the third number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having two or less bits and a second sum of the fourth number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having more than two bits.
Any of the methods above, wherein determining the second number of resources further comprises adding the third number of resources, the fifth number of resources, and the sixth number of resources.
Any of the methods above, further comprising determining a third number of resources allocated for acknowledgement, a fourth number of resources allocated for first channel state information, or a fifth number of resources allocated for second channel state information using a first plurality of equations in response the data information being a new transmission and a second plurality of equations in response to the data information being a retransmission, wherein the first plurality of equations is different than the second plurality of equations.
In some aspects, a UE may include a memory comprising instructions, a transceiver, and one or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to execute instructions in the memory to determine a first number of resources allocated for an uplink transmission, determine a second number of resources allocated for control information in the uplink transmission, determine a difference between the first number of resources and the second number of resources, determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
In certain aspects, a non-transitory computer readable medium having instructions stored therein that, when executed by one or more processors of a user equipment (UE) , cause the one or more processors to determine a first number of resources allocated for an uplink transmission, determine a second number of resources allocated for control information in the uplink transmission, determine a difference between the first number of resources and the second number of resources, determine an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and transmit scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
In an aspect, a UE includes means for determining a first number of resources allocated for an uplink transmission, means for determining a second number of resources allocated for control information in the uplink transmission, means for determining a difference between the first number of resources and the second number of resources, means for determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers, and means for transmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
The above detailed description set forth above in connection with the appended drawings describes examples and does not represent the only examples that may be implemented or that are within the scope of the claims. The term “example, ” when used in this description, means “serving as an example, instance, or illustration, ” and not “preferred” or “advantageous over other examples. ” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. For example, changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Also, various examples may omit, substitute, or add various procedures or components as appropriate. For instance, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Also, features described with respect to some examples may be combined in other examples. In some instances, well-known structures and apparatuses are shown in block diagram form in order to avoid obscuring the concepts of the described examples.
It should be noted that the techniques described herein may be used for various wireless communication networks such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms “system” and “network” are often used interchangeably. A CDMA system may implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA) , etc. CDMA2000 covers IS-2000, IS-95, and IS-856 standards. IS-2000 Releases 0 and A are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD) , etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. A TDMA system may implement a radio technology such as Global System for Mobile Communications (GSM) . An OFDMA system may implement a radio technology such as Ultra Mobile Broadband (UMB) , Evolved UTRA (E-UTRA) , IEEE 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM
TM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS) . 3GPP LTE and LTE-Advanced (LTE-A) are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named “3rd Generation Partnership Project” (3GPP) . CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2) . The techniques described herein may be used for the systems and radio technologies mentioned above as well as other systems and radio technologies, including cellular (e.g., LTE) communications over a shared radio frequency spectrum band. The description herein, however, describes an LTE/LTE-Asystem or 5G system for purposes of example, and LTE terminology is used in much of the description below, although the techniques may be applicable other next generation communication systems.
Information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.
The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed with a specially-programmed device, such as but not limited to a processor, a digital signal processor (DSP) , an ASIC, a FPGA or other programmable logic device, a discrete gate or transistor logic, a discrete hardware component, or any combination thereof designed to perform the functions described herein. A specially-programmed processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A specially-programmed processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a non-transitory computer-readable medium. Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, due to the nature of software, functions described above may be implemented using software executed by a specially programmed processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations. Also, as used herein, including in the claims, “or” as used in a list of items prefaced by “at least one of” indicates a disjunctive list such that, for example, a list of “at least one of A, B, or C” means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) .
Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage medium may be any available medium that may be accessed by a general purpose or special purpose computer. By way of example, and not limitation, computer-readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and disc, as used herein, include compact disc (CD) , laser disc, optical disc, digital versatile disc (DVD) , floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.
The previous description of the disclosure is provided to enable a person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the common principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Furthermore, although elements of the described aspects may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated. Additionally, all or a portion of any aspect may be utilized with all or a portion of any other aspect, unless stated otherwise. Thus, the disclosure is not to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (15)
- A method of wireless communication by a base station (BS) , comprising:determining a first number of resources allocated for an uplink transmission;determining a second number of resources allocated for control information in the uplink transmission;determining a difference between the first number of resources and the second number of resources;determining an available number of resources for data information based on a product of the difference, an indicated code rate, a modulation order, and a number of layers; andtransmitting scheduling information indicating the available number of resources allocated for the data information of the uplink transmission.
- The method of claim 1, further comprising:determining a third number of resources allocated for acknowledgement information in the uplink transmission;determining a fourth number of resources allocated for first channel state information in the uplink transmission;determining a fifth number of resources allocated for second channel state information in the uplink transmission; andwherein determining the second number of resources comprises adding at least one of the third number of resources or the fourth number of resources, and the fifth number of resources.
- The method of claim 2, wherein determining the second number of resources further comprises adding the third number of resources, the fourth number of resources, and the fifth number of resources.
- The method of claim 2, wherein determining the second number of resources further comprises adding the fourth number of resources and the fifth number of resources.
- The method of claim 2, wherein the second number of resources equals to:a first sum of the fourth number of resources and the fifth number of resources if the acknowledgement information has two or less bits; ora second sum of the third number of resources, fourth number of resources, and the fifth number of resources if the acknowledgement information has more than two bits.
- The method of claim 1, further comprising:determining a third number of resources allocated for reserved acknowledgement information in the uplink transmission;determining a fourth number of resources allocated for acknowledgement information in the uplink transmission;determining a fifth number of resources allocated for first channel state information in the uplink transmission;determining a sixth number of resources allocated for second channel state information in the uplink transmission; andwherein determining the second number of resources comprises adding one of the third number of resources or the fourth number of resources, the fifth number of resources, and the sixth number of resources.
- The method of claim 6, wherein the second number of resources equals to:a first sum of the third number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having two or less bits; anda second sum of the fourth number of resources, the fifth number of resources, and the sixth number of resources in response to the acknowledgement information having more than two bits.
- The method of claim 6, wherein determining the second number of resources further comprises adding the third number of resources, the fifth number of resources, and the sixth number of resources.
- The method of claim 1, further comprising:determining a third number of resources (Q′ ACK) allocated for acknowledgement information in the uplink transmission using a first equation:determining a fourth number of resources (Q′ CSI-1) allocated for first channel state information in the uplink transmission using a second equation:determining a fifth number of resources allocated for second channel state information in the uplink transmission using a second equation: andwherein determining the second number of resources comprises adding the third number of resources and at least one of the fourth number of resources or the fifth number of resources.
- The method of claim 1, further comprising:determining a third number of resources (Q′ ACK) allocated for acknowledgement information in the uplink transmission using a first equation:determining a fourth number of resources (Q′ CSI-1) allocated for first channel state information in the uplink transmission using a second equation:determining a fifth number of resources allocated for second channel state information in the uplink transmission using a third equation: andwherein determining the second number of resources comprises adding the third number of resources and at least one of the fourth number of resources or the fifth number of resources.
- The method of claim 1, further comprising determining a third number of resources allocated for acknowledgement, a fourth number of resources allocated for first channel state information, or a fifth number of resources allocated for second channel state information using a first plurality of equations in response the data information being a new transmission and a second plurality of equations in response to the data information being a retransmission, wherein the first plurality of equations is different than the second plurality of equations.
- A base station (BS) , comprising:a memory comprising instructions;a transceiver; andone or more processors operatively coupled with the memory and the transceiver, the one or more processors configured to execute instructions in the memory to:perform the methods of claims 1-11.
- A non-transitory computer readable medium having instructions stored therein that, when executed by one or more processors of a base station (BS) , cause the one or more processors to:perform the methods of claims 1-11.
- A base station (BS) , comprising:means for performing the methods of claims 1-11.
- A method of wireless communication by a user equipment (UE) , comprising:receiving scheduling information indicating an available number of resources allocated for data information of an uplink transmission, wherein the available number of resources is determined based on a product of an indicated code rate, a modulation order, a number of layers, and a difference between a first number of resources allocated for the uplink transmission and a second number of resources allocated for control information in the uplink transmission; andtransmitting the data information via one or more of the available number of resources.
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| PCT/CN2020/084004 WO2021203369A1 (en) | 2020-04-09 | 2020-04-09 | Methods and apparatus for determining transport block size for pusch with uci |
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| PCT/CN2020/084004 WO2021203369A1 (en) | 2020-04-09 | 2020-04-09 | Methods and apparatus for determining transport block size for pusch with uci |
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| US20190068313A1 (en) * | 2017-06-16 | 2019-02-28 | Huawei Technologies Co.,Ltd. | Method and apparatus for determining transport block size |
| WO2019050304A1 (en) * | 2017-09-08 | 2019-03-14 | 삼성전자 주식회사 | Method and apparatus for determining transport block size in communication or broadcasting system |
| US20190149287A1 (en) * | 2017-03-20 | 2019-05-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and nodes for determining a transmission data block size |
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| US20190149287A1 (en) * | 2017-03-20 | 2019-05-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and nodes for determining a transmission data block size |
| US20190068313A1 (en) * | 2017-06-16 | 2019-02-28 | Huawei Technologies Co.,Ltd. | Method and apparatus for determining transport block size |
| WO2019050304A1 (en) * | 2017-09-08 | 2019-03-14 | 삼성전자 주식회사 | Method and apparatus for determining transport block size in communication or broadcasting system |
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