Transmission of duplicate information in bursts

Abstract

Aspects of the present disclosure include methods, apparatus, and computer readable media for generating a first scrambling identifier (ID), generating a first scrambling sequence based on the first scrambling ID, scrambling a first set of information based on the first scrambling sequence to generate a first plurality of information bits, and generating a second plurality of information bits based on the first plurality of information bits. A plurality of duplicate copies of the first plurality of information bits scrambled using a first scrambling sequence are generated, and a first transmission burst comprising each of the plurality of duplicate copies of the first plurality of information bits is transmitted on a different resource of the first plurality of resources in the communication channel.

Description

[0001] This application is a divisional application of an application with a filing date of April 3, 2020, application number 202080098933.2, and name “Repetitive Information in Transmission Bursts”. Technical Field

[0002] Aspects of the present disclosure relate generally to wireless communications and, more particularly, to apparatus and methods for sending repetitive information in a transmission burst. Background Art

[0003] Wireless communication networks are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of these 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.

[0004] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. For example, the fifth generation (5G) wireless communication technology (which may be referred to as New Radio (NR)) is envisioned to expand and support various usage scenarios and applications relative to current mobile network generations. In one aspect, 5G communication technology may include: enhanced mobile broadband for addressing human-centric use cases for accessing multimedia content, services, and data; ultra-reliable low-latency communications (URLLC) with certain specifications regarding latency and reliability; and a large number of machine-type communications, which may allow a large number of connected devices and transmit relatively small amounts of non-delay sensitive information. However, as the demand for mobile broadband access continues to increase, further improvements in NR communication technology and other technologies may be expected.

[0005] In a wireless communication network, a base station (BS) may send redundant information to a user equipment (UE) to achieve coverage enhancement. However, sending redundant information may bring more computational load to the BS and / or UE due to the need for scrambling / descrambling, encoding / decoding, etc. In addition, the BS and / or UE may require higher complexity to send redundant information. Therefore, it may be desirable to improve the sending of redundant information. Summary of the invention

[0006] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all contemplated aspects, and is intended to neither identify key or important 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 a more detailed description presented later.

[0007] Aspects of the present disclosure include methods for generating a first scrambling identification (ID), generating a first scrambling sequence based on the first scrambling ID, scrambling a first set of information based on the first scrambling sequence to generate a first plurality of information bits, generating a plurality of repeated copies of the first plurality of information bits scrambled using the first scrambling sequence, and sending a first transmission burst including each of the plurality of repeated copies of the first plurality of information bits on different resources of the first plurality of resources in a communication channel.

[0008] Other aspects of the present disclosure include a device having a memory including instructions, at least one transceiver, and at least one processor communicatively coupled to the memory and the at least one transceiver, the instructions executable by the at least one processor causing the device to execute instructions in the memory to generate a first scrambling identification (ID), generate a first scrambling sequence based on the first scrambling ID, scramble a first set of information based on the first scrambling sequence to generate a first set of multiple information bits, generate multiple repeated copies of the first set of multiple information bits scrambled using the first scrambling sequence, and send a first transmission burst including each of the different repeated copies of the first set of multiple information bits on different resources in a first set of multiple resources in a communication channel.

[0009] One aspect of the present disclosure includes a device comprising: a unit for generating a first scrambling identification (ID), a unit for generating a first scrambling sequence based on the first scrambling ID, a unit for scrambling a first set of information based on the first scrambling sequence to generate a first set of multiple information bits, a unit for generating multiple repeated copies of the first set of multiple information bits scrambled using the first scrambling sequence, and a unit for sending a first transmission burst including each of the multiple repeated copies of the first set of multiple information bits on different resources in a first set of multiple resources in a communication channel.

[0010] Some aspects of the present disclosure include a non-transitory computer-readable medium having instructions stored therein, which, when executed by one or more processors of a device, cause the device to perform the following operations: generate a first scrambling identification (ID), generate a first scrambling sequence based on the first scrambling ID, scramble a first set of information based on the first scrambling sequence to generate a first set of multiple information bits, generate multiple repeated copies of the first set of multiple information bits scrambled using the first scrambling sequence, and send a first transmission burst including each of the multiple repeated copies of the first set of multiple information bits on different resources in a first set of multiple resources in a communication channel.

[0011] To achieve the foregoing and related ends, one or more aspects include features fully described below and particularly pointed out in the claims. The following description and drawings set forth in detail specific illustrative features of one or more aspects. However, these features are merely indicative of some of the various ways in which the principles of the various aspects may be employed, and this specification is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Hereinafter, the disclosed aspects will be described in conjunction with the accompanying drawings, which are provided for the purpose of describing rather than limiting the disclosed aspects, wherein like numerals denote like elements, and wherein:

[0013] Figure 1 is a diagram of an example of a wireless communication system and access network.

[0014] Figure 2 is a schematic diagram of an example of a user device;

[0015] Figure 3 is a schematic diagram of an example of a base station;

[0016] Figure 4 is a block diagram of an example of a codeword scrambling process;

[0017] Figure 5 is a block diagram of an example of a reference signal scrambling process.

[0018] Figure 6 is a block diagram of an example of a process for sending a transmission burst;

[0019] Figure 7 is a graph of frequency versus time including examples of resources used to send a transmission burst;

[0020] Figure 8 is a graph of frequency versus time including an example of a common phase rotation among resource elements of the same symbol that may be used to mitigate inter-cell interference when sending a transmission burst;

[0021] Fig. 9 is a block diagram of an example of a process for receiving a transmission burst;

[0022] Fig.10 is a flow chart of an example of a method for sending a transmission burst; and

[0023] Fig.11 is a flow chart of an example of a method for receiving a transmission burst

[0024] Attached is an appendix, the contents of which are incorporated into this article in their entirety.

[0025] Fig.12 is a block diagram of an example of a scrambling operation at a transmitter.

[0026] Fig.13 is a block diagram of an example of a descrambling operation at a receiver.

[0027] Fig.14 is a block diagram of an example of scrambling sequence generation for a physical channel.

[0028] Fig.15 is a block diagram of an example of scrambling sequence generation for a reference signal.

[0029] Fig.16 is a block diagram of an example of multiple transmit bursts.

[0030] Fig.17 is a block diagram of an example of OFDM symbol-level phase rotation.

[0031] Fig.18 is a block diagram of an example of a simplified descrambling process. DETAILED DESCRIPTION

[0032] The specific embodiments described below in conjunction with the accompanying drawings are intended to be descriptions of various configurations and are not intended to represent the only configuration in which the concepts described herein may be implemented. In order to provide a thorough understanding of the various concepts, the specific embodiments include specific details. However, it will be clear to those skilled in the art that these concepts may be implemented without these specific details. In some instances, known structures and components are shown in block diagram form to avoid blurring such concepts.

[0033] Several aspects of telecommunication systems will now be described 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 these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0034] For example, an element, or any part of an element, or any combination of multiple elements can be implemented as a "processing system" including 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 chip (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gate logic, discrete hardware circuits, and other suitable hardware configured to perform various functions described throughout the present disclosure. One or more processors in a processing system can execute software. Software should be broadly interpreted as referring to instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language or other.

[0035] Accordingly, in one or more exemplary embodiments, the described functions can be implemented with hardware, software or any combination thereof. If implemented with software, the functions can be stored on a computer-readable medium or encoded as one or more instructions or codes. Computer-readable media include computer storage media. Storage media can be any available medium that a computer can access. By way of example and not limitation, these computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, a combination of computer-readable media of the above types, or any other medium that can be used to store computer executable code in the form of instructions or data structures that a computer can access.

[0036] In one aspect of the present disclosure, repetition-based transmissions may be utilized to enhance coverage of physical channels and / or reference signals. Examples of these transmissions may include, but are not limited to, slot / mini-slot based repetitions for data channels (e.g., physical downlink shared channel (PDSCH) or physical uplink shared channel (PUSCH)), repetitions of physical control channels (e.g., physical broadcast channel (PBCH), or physical downlink control channel (PDCCH), or physical uplink control channel (PUCCH)), or bundling of reference signals across multiple slots / mini-slots. Repetition / bundling may be combined with frequency hopping and / or phase randomization. In order to reduce the implementation complexity of the UE when combining and / or generating multiple copies of physical channels / signals, the same scrambling sequence may be repeated across repetitions of control / data channels and bundling of reference signals. In addition, in some embodiments, in the presence of frequency hopping, redundant version (RV) cycles, or precoder cycles, different scrambling sequences may be applied to indicate changes in the transmission scheme. Furthermore, in some implementations, in order to mitigate inter-cell interference, OFDM symbol-level phase randomization may be used in conjunction with the above-mentioned scrambling process.

[0037] In certain embodiments, in order to achieve enhanced coverage during uplink (UL) or downlink (DL) transmission, the UE or BS can utilize extended transmission time without reducing capability or increasing hardware or software complexity. The extended transmission can be continuous or discontinuous in the time domain. For example, full-duplex frequency division duplex (FD-FDD) can be used to implement continuous or coherent, or discontinuous or non-coherent transmission of extended transmission in UL and / or DL. In addition, for example, half-duplex frequency division duplex (HD-FDD) or time division duplex (TDD) can be used to implement discontinuous transmission of extended transmission in UL and / or DL. The extended transmission can be divided into one or more transmission bursts in the time domain, wherein a transmission burst includes two or more repetitions or repeated copies of the same information. A transmission burst can be composed of multiple time slots or multiple mini-time slots. to index. The repetition and / or bundling of physical signals and reference signals within a transmission burst may be continuous or discontinuous in time. Obviously, as described in more detail herein, within a transmission burst, the transmission scheme of codewords in the frequency (or space) domain remains unchanged. For example, in one embodiment, the transmission scheme parameters (e.g., RV, precoding, or frequency mapping scheme) used for repetition within a transmission burst may be fixed. In addition, for example, the transmission scheme (e.g., at least one of the transmission scheme parameters) may change from one transmission burst to another.

[0038] In some embodiments, a device (e.g., for wireless communication), also referred to as a transmitter / receiver / transceiver (e.g., a BS or UE) may generate a scrambling sequence to be repeatedly applied to each duplicate copy of the information or supplemented for use in a physical channel within a transmission burst. For example, the scrambling sequence may be a binary pseudo-random noise sequence based on a scrambling identifier (ID). The scrambling ID may include, but is not limited to, a random number, a cell-specific scrambling ID (for multicast or broadcast), or a UE-specific scrambling ID (for unicast). For example, a transmitter may utilize a scrambling sequence to scramble a codeword sequence into (e.g., perform an XOR operation) scrambled bits before transmission. In one example, the transmitter may send redundant copies of the scrambled bits to a receiver in a transmission burst. The redundant copies of the scrambled bits may be scrambled with the same scrambling sequence.

[0039] In an alternative or additional embodiment, the transmitter may generate a scrambling sequence for a reference signal within a transmission burst based on a reference scrambling ID, and the reference scrambling ID may be the same or different from the scrambling ID discussed above. The scrambling sequence may be referred to as a reference scrambling sequence. The transmitter may map the reference scrambling sequence, for example, from a binary sequence to a quaternary sequence. The quaternary sequence may be multiplexed with one or more redundant copies of the scrambling bits. The quaternary sequence may be used as a reference signal for UL and / or DL ​​transmission (e.g., a demodulation reference signal (DMRS), a channel state indicator reference signal (CSI-RS), a phase tracking reference signal (PT-RS), a sounding reference signal (SRS), a timing reference signal (TRS), etc.).

[0040] In certain aspects of any of the above embodiments, the scrambling ID and / or the reference scrambling ID may be a 31-bit ID.The ID may be time-varying, UE-specific, and / or cell-specific.

[0041] Therefore, based on the foregoing, the present disclosure provides a simplified scrambling process that can be used to effectively achieve coverage enhancement in a wireless communication network.

[0042] Reference Figure 1-3 , an example of a wireless communication network 100, which may also be referred to as a wireless wide area network (WWAN), includes at least one BS 105 having a repetition component 199 and at least one UE 110 having a repetition component 198, each of which is configured to perform a simplified scrambling / descrambling process for repetition-based transmissions to enhance coverage within the wireless communication network 100. The BS 105 and / or the UE 110 may communicate with each other and may communicate with one or both of an evolved packet core (EPC) 160 or a 5G core (5GC) 190. The BS 105 may include a macro cell (high-power cellular base station) and / or a small cell (low-power cellular base station). A macro cell includes a base station. A small cell includes a femto cell, a pico cell, and a micro cell.

[0043] More specifically refer to Figure 2-3 In one implementation, the UE 110 as a transmitter device may include a modem 320 having a communication component 222 that operates in cooperation with the repetition component 198 to transmit multiple repetitions of information having the same scrambling sequence to a receiver device (e.g., BS 105). 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 repetition component 198 of the UE 110 may include a generation component 224 that is configured to generate a scrambling ID and / or a scrambling sequence. The UE 110 may include a scrambling / descrambling component 226 that is configured to scramble the bit sequence using the scrambling sequence (e.g., using an XOR operator). UE 110 may include a redundancy component 228 that replicates the scrambled bits prior to transmission so that within a given transmission burst, each of the replicated, repeated, or redundant information has the same scrambling sequence to allow for more efficient descrambling at a receiver (e.g., such as at a scrambling / descrambling component 326 of BS 105).

[0044] Similarly, in some embodiments, the BS 105 acting as a transmitter device may include a modem 320 having a communication component 322 that operates in cooperation with the repetition component 199 to transmit multiple repetitions of information having the same scrambling sequence to a receiver device (e.g., UE 110). The repetition component 199 of the BS 105 may include a generation component 324 that is configured to generate a scrambling ID and / or a scrambling sequence. The BS 105 may include a scrambling / descrambling component 326 that is configured to scramble the bit sequence using the scrambling sequence (e.g., using an XOR operator). The BS 105 may include a redundancy component 328 that replicates the scrambled bits prior to transmission so that within a given transmission burst, each of the replicated, repeated, or redundant information has the same scrambling sequence to allow for more efficient descrambling at the receiver (e.g., at the scrambling / descrambling component 226 of the UE 110).

[0045] Return to reference Figure 1, a BS 105 configured for 4G LTE (collectively referred to as an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with the EPC 160 via a backhaul link interface 132 (e.g., S1, X2, Internet Protocol (IP), or flex interface). A BS 105 configured for 5G NR (collectively referred to as a Next Generation RAN (NG-RAN)) can interface with the 5GC 190 via a backhaul link interface 134 (e.g., S1, X2, Internet Protocol (IP), or flex interface). Among other functions, BS 105 may also perform one or more of the following functions: transmission of user data, radio channel encryption and decryption, integrity protection, header compression, mobile control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment 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), user and device tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. BS 105 may communicate with each other directly or indirectly (e.g., through EPC 160 or 5GC 190) via backhaul link interfaces 132, 134. Backhaul link 134 may be wired or wireless.

[0046] BS105 can communicate with UE 110 wirelessly. Each BS105 can provide communication coverage for a corresponding geographic coverage area 130. There may be overlapping geographic coverage areas 130. For example, a small cell 105' can have a coverage area 130' that overlaps with the coverage area 130 of one or more macro BSs 105. A network including both small cells and macro cells can be referred to as a heterogeneous network. A heterogeneous network can also include a home evolved Node B (eNB) (HeNB), which can provide services to a restricted group called a closed subscriber group (CSG). The communication link 120 between BS105 and UE 110 can include an uplink (UL) (also referred to as a reverse link) transmission from UE 110 to BS105 and / or a downlink (DL) (also referred to as a forward link) transmission from BS105 to UE 110. The communication link 120 can use multiple input multiple output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link can be through one or more carriers. BS 105 / UE 110 may use up to Y total for transmission in each direction. xThe invention relates to a spectrum of up to Y MHz (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, etc.) bandwidth per carrier allocated in a carrier aggregation of 5 MHz (x component carriers). The carriers may be adjacent to each other or may not be adjacent to each other. The carrier allocation for DL ​​and UL may be asymmetric (e.g., more or fewer carriers may be allocated for DL ​​compared to UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).

[0047] Certain UEs 110 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use 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). D2D communication may be performed via various wireless D2D communication systems, such as FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on IEEE 802.11 standards, LTE, or NR.

[0048] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) prior to communication to determine whether the channel is available.

[0049] The small cell 105' may operate in licensed and / or unlicensed spectrum. When operating in the unlicensed spectrum, the small cell 105' may employ NR and use the same 5 GHz unlicensed spectrum as used by the Wi-Fi AP 150. The small cell 105' employing NR in the unlicensed spectrum may extend coverage and / or increase capacity of the access network.

[0050] BS 105, whether a small cell 105' or a large cell (e.g., a macro base station), may include an eNB, a gNodeB (gNB), or other types of base stations. Some base stations (e.g., gNB 180) may operate in the traditional sub-6 GHz spectrum, in millimeter wave (mmW) frequencies, and / or near mmW frequencies to communicate with UE 110. When a gNB 180 operates in mmW or near mmW frequencies, the gNB 180 may be referred to as a 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 the wavelength is between 1 mm and 10 mm. Radio waves in the band may be referred to as millimeter waves. Near mmW may extend down to 3 GHz frequencies with a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz and is also referred to as centimeter waves. Communications using mmW / near mmW radio bands have extremely high path loss and short distances. The mmW base station 180 may employ beamforming 182 for the UE 1110 to compensate for path loss and short range.

[0051] 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 communicate with a home subscription server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 110 and the EPC 160. Typically, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to 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 functionality for MBMS user service setup and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS transmissions, 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 BSs 105 belonging to a multicast broadcast single frequency network (MBSFN) area for broadcasting specific services, and may be responsible for session management (start / stop) and for collecting charging information related to eMBMS.

[0052] 5GC 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. AMF 192 may communicate with unified data management (UDM) 196. AMF 192 is a control node for processing signaling between UE 110 and 5GC 190. Typically, AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are transmitted through UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 is connected to IP service 197. IP service 197 may include the Internet, intranet, IP multimedia subsystem (IMS), PS streaming service and / or other IP services.

[0053] BS 105 may also be referred to as gNB, Node B, evolved Node B (eNB), access point, base transceiver, radio base station, access point, access node, radio transceiver, Node B, eNodeB (eNB), gNB, Home Node B, Home eNodeB, relay, transceiver function, basic service set (BSS), extended service set (ESS), transmit receive point (TRP), or some other suitable terminology. BS 105 provides an access point to EPC 160 or 5GC 190 for UE 110. Examples of UE 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., an 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 health device, an implant, a sensor / actuator, a display, or any other similarly functional device. Some of the UEs 110 may be referred to as IoT devices (e.g., parking meters, gas pumps, toasters, vehicles, heart monitors, etc.) 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 communication 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.

[0054] Reference Figure 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. The UE 110 may include a repeating component 198 having a generating component 224, which is configured to generate a scrambling ID and / or a scrambling sequence. The UE 110 may include a scrambling / descrambling component 226, which is configured to scramble a bit sequence using a scrambling sequence (e.g., using an XOR operator). And, the UE 110 may include a redundancy component 228 that replicates the scrambled bits before transmission. Alternatively, when used as a receiver device, the scrambling / descrambling component 226 is configured to descramble the transmission of a duplicate or repeated copy of the information scrambled with the same scrambling sequence by applying the same descrambling sequence to the information.

[0055] In some embodiments, the UE 110 may include various components, but includes components such as one or more processors 212 and memory 216 communicating via one or more buses 244 and transceiver 202, which may operate in conjunction with a modem 220 and a communication component 222 to implement one or more functions described herein involving communication with the BS 105. In addition, 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 (simultaneously or non-simultaneously) voice and / or data calls 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.

[0056] In one aspect, the one or more processors 212 may include a modem 220 using one or more modem processors. Various functions related to the communication component 222 may be included in the modem 220 and / or the processor 212, and in one aspect, these functions may be performed by a single processor, while in other aspects, different functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 212 may include any one or any combination of the following: a modem processor, or a baseband processor, or a digital signal processor, or a transmission processor, or a receiving device processor, or a transceiver processor associated with the transceiver 202. In addition, the modem 220 may configure the UE 110 together with the processor 212. In other aspects, some features of the one or more processors 212 and / or the modem 220 associated with the communication component 222 may be performed by the transceiver 202.

[0057] Moreover, the memory 216 may be configured to store data used herein and / or local versions of the applications 275 or the communication component 222, the generation component 224, the scrambling / descrambling component 226, the redundancy component 228, and / or one or more subcomponents executed by the at least one processor 212. The memory 216 may include any type of computer-readable medium usable by a computer or the at least one processor 212, such as random access memory (RAM), read-only memory (ROM), tapes, magnetic disks, optical disks, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, the memory 216 may be a non-transitory computer-readable storage medium storing one or more computer-executable codes that define the communication component 222, the communication component 222, the generation component 224, the scrambling / descrambling component 226, the redundancy component 228, and / or one or more subcomponents and / or data associated therewith when the UE 110 is operating at least one processor 212 to execute the communication component 222, the communication component 222, the generation component 224, the scrambling / descrambling component 226, the redundancy component 228, and / or one or more subcomponents.

[0058] The transceiver 202 may include at least one receiver 206 and at least one transmitter 208. The receiver 206 may include hardware, firmware, and / or software code executable by a processor for receiving data, the code including instructions and stored in a memory (e.g., a computer-readable medium). The receiver 206 may be, for example, an RF receiving device. In one aspect, the receiver 206 may receive signals transmitted by at least one BS 105. The transmitter 208 may include hardware, firmware, and / or software code executable by a processor for transmitting data, the code including instructions and stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 208 may include, but are not limited to, an RF transmitter.

[0059] In addition, in one aspect, the UE 110 may include an RF front end 288, which may communicate with the one or more antennas 265 and the transceiver 202 for receiving and sending radio transmissions, such as wireless communications sent by at least one BS 105 or wireless communications sent by the UE 110. The RF front end 288 may be coupled to the 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 sending and receiving RF signals.

[0060] In one aspect, the LNA 290 can amplify the received signal according to the desired output level. In one aspect, each LNA 290 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a specific LNA 290 and a specified gain value based on the desired gain value for a particular application.

[0061] In addition, for example, the RF front end 288 can use one or more PAs 298 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 298 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a particular PA 298 and a specified gain value based on a desired gain value for a particular application.

[0062] In addition, for example, the RF front end 288 can use one or more filters 296 to filter the received signal to obtain the input RF signal. Similarly, in one aspect, for example, the corresponding filter 296 can be used to filter the output from the corresponding PA 298 to produce an output signal for transmission. In one aspect, each filter 296 can be coupled to a specific LNA 290 and / or PA 298. In one aspect, the RF front end 288 can use one or more switches 292 to select a transmit or receive path based on the configuration specified by the transceiver 202 and / or the processor 212, and the transmit or receive path uses the specified filter 296, LNA 290 and / or PA 298.

[0063] As such, the transceiver 202 may be configured to transmit and receive wireless signals via the RF front end 288 through the one or more antennas 265. In one aspect, the transceiver may be tuned to operate at a specified frequency so that the UE 110 may communicate with, for example, one or more BSs 105, or one or more cells associated with the one or more BSs 105. In one aspect, the modem 220 may configure the transceiver 202 to operate at a specified frequency and power level based on, for example, the UE configuration of the UE 110 and the communication protocol used by the modem 220.

[0064] In one aspect, modem 220 can be a multi-band multi-mode modem that can process digital data and communicate with transceiver 202, thereby using transceiver 202 to send and receive digital data. In one aspect, modem 220 can be multi-band and configured to support multiple frequency bands for specific communication protocols. In one aspect, modem 220 can be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, modem 220 can control one or more components (e.g., RF front end 288, transceiver 202) of UE 110 based on specified modem configuration to enable sending and / or receiving signals from the network. In one aspect, modem configuration can be based on the mode of the modem and the frequency band in use. In another aspect, modem configuration can be based on UE configuration information associated with UE 110 provided by the network.

[0065] Reference Figure 3 , one example of an implementation of the BS 105 may include a modem 320 having a communication component 322 configured to send data. The communication component 322 and / or the modem 320 of the BS 105 may be configured to communicate with the UE 110 via a cellular network, a Wi-Fi network, or other wireless and / or wired network. The repetition component 199 of the BS 105 may include a generation component 324 configured to generate a scrambling ID and / or a scrambling sequence. The BS 105 may include a scrambling / descrambling component 326 configured to scramble a bit sequence using a scrambling sequence (e.g., using an XOR operator). The BS 105 may include a redundancy component 328 that replicates the scrambled bits before transmission. Alternatively, when used as a receiver device, the scrambling / descrambling component 326 is configured to descramble a transmission including a duplicate or repeated copy of information scrambled with the same scrambling sequence by applying the same descrambling sequence to the information.

[0066] In some embodiments, the BS 105 may include various components, including components such as one or more processors 312 and memory 316 and transceiver 302 communicating via one or more buses 344, which may operate in conjunction with a modem 320 and a communication component 322 to implement one or more functions described herein involving communication with a UE 110. In addition, 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 (simultaneously or non-simultaneously) voice and / or data calls in one or more radio access technologies. The one or more antennas 365 may include one or more antennas, antenna elements, and / or antenna arrays.

[0067] In one aspect, one or more processors 312 may include a modem 320 using one or more modem processors. Various functions related to the communication component 322, the generation component 324, the scrambling / descrambling component 326, and / or the redundancy component 328 may be included in the modem 320 and / or the processor 312, and in one aspect, these functions may be performed by a single processor, while in other aspects, different functions may be performed by a combination of two or more different processors. For example, in one aspect, one or more processors 312 may include any one or any combination of the following: a modem processor, or a baseband processor, or a digital signal processor, or a transmission processor, or a receiving device processor, or a transceiver processor associated with the transceiver 302. In addition, the modem 320 may configure the BS105 and the processor 312. In other aspects, some features of the one or more processors 312 and / or the modem 320 associated with the communication component 322 may be performed by the transceiver 302.

[0068] Moreover, the memory 316 can be configured to store data used herein and / or a local version of the application 375 or one or more of the communication component 322, the generation component 324, the scrambling / descrambling component 326, the redundancy component 328, and / or the subcomponents executed by the at least one processor 312. The memory 316 can include any type of computer-readable medium usable by a computer or the at least one processor 312, such as random access memory (RAM), read-only memory (ROM), tapes, magnetic disks, optical disks, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, the memory 316 may be a non-transitory computer-readable storage medium storing one or more computer-executable codes that define the communication component 322, the generation component 324, the scrambling / descrambling component 326, the redundant component 328, and / or one or more of the subcomponents and / or data associated therewith when the BS 105 is operating at least one processor 312 to execute the communication component 322, the generation component 324, the scrambling / descrambling component 326, the redundant component 328, and / or one or more of the subcomponents.

[0069] The transceiver 302 may include at least one receiving device 306 and at least one transmitter 308. The at least one receiving device 306 may include hardware, firmware, and / or software code executable by a processor for receiving data, the code including instructions and stored in a memory (e.g., a computer-readable medium). The receiving device 306 may be, for example, an RF receiving device. In one aspect, the receiving device 306 may receive a signal transmitted by the UE 110. The transmitter 308 may include hardware, firmware, and / or software code executable by a processor for transmitting data, the code including instructions and stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 308 may include, but are not limited to, an RF transmitter.

[0070] In addition, in one aspect, the BS 105 may include an RF front end 388 that may operate in communication with one or more antennas 365 and the transceiver 302 for receiving and sending radio transmissions (e.g., wireless communications sent by other BSs 105 or wireless transmissions sent by UEs 110). The RF front end 388 may be coupled to the 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 sending and receiving RF signals.

[0071] In one aspect, the LNA 390 can amplify the received signal at a desired output level. In one aspect, each LNA 390 can have a specified minimum and maximum gain value. In one aspect, the RF front end 388 can use one or more switches 392 to select a particular LNA 390 and a specified gain value based on the desired gain value for a particular application.

[0072] In addition, for example, the RF front end 388 can use one or more PAs 398 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 398 can have a specified minimum and maximum gain value. In one aspect, the RF front end 388 can use one or more switches 392 to select a particular PA 398 and a specified gain value based on a desired gain value for a particular application.

[0073] Also, for example, the RF front end 388 can use one or more filters 396 to filter the received signal to obtain an input RF signal. Similarly, in one aspect, for example, a corresponding filter 396 can be used to filter the output from the corresponding PA 398 to produce an output signal for transmission. In one aspect, each filter 396 can be coupled to a specific LNA 390 and / or PA 398. In one aspect, the RF front end 388 can use one or more switches 392 to select a transmit or receive path that uses a specified filter 396, LNA 390, and / or PA 398 based on the configuration as specified by the transceiver 302 and / or the processor 312.

[0074] Thus, the transceiver 302 may be configured to transmit and receive wireless signals through one or more antennas 365 via the RF front end 388. In one aspect, the transceiver may be tuned to operate at a specified frequency so that the BS 105 can communicate with, for example, a UE 110 or one or more cells associated with one or more BSs 105. In one aspect, the modem 320 may configure the transceiver 302 to operate at a specified frequency and power level based on, for example, the base station configuration of the BS 105 and the communication protocol used by the modem 320.

[0075] In one aspect, modem 320 can be a multi-band-multi-mode modem, which can process digital data and communicate with transceiver 302, so that digital data is sent and received using transceiver 302. In one aspect, modem 320 can be multi-band, and is configured to support multiple frequency bands for specific communication protocols. In one aspect, modem 320 can be multi-mode, and is configured to support multiple operating networks and communication protocols. In one aspect, modem 320 can control one or more components (e.g., RF front end 388, transceiver 302) of BS105 to realize the transmission and / or reception of the signal from the network based on the specified modem configuration. In one aspect, modem configuration can be based on the mode of modem and the frequency band in use. In another aspect, modem configuration can be based on the base station configuration associated with BS105.

[0076] Now refer to Figure 4 In some implementations, an example of process 400 for scrambling data and / or control information for a transmission burst may be performed by a transmitter (eg, BS 105 or UE 110). Process 400 may include generating a scrambling ID ID generator 402. In one embodiment, the scrambled ID may have a length (L) greater than or equal to 31 bits. ID generator 402 may generate a random or pseudo-random number as the scrambled ID. ID generator 402 may be based on a cell ID associated with communication network 100. UE ID or UE group ID and / or transmit burst index The scrambled ID is generated by a weighted combination of , as shown in the following formula:

[0077] Module (2 L -1),

[0078] Among them, the weighting factor is greater than or equal to 0, w k ≥ 0, k = 1, 2, 3. The cell ID, UE ID or UE group ID, and / or transmission burst may be signaled through system information (SI) and / or radio resource configuration (RRC).

[0079] In some cases, process 400 may include a sequence generator 404 that generates a scrambling sequence based on the scrambling ID generated by ID generator 402. For example, the scrambling sequence may have a sequence number such as c(0), c(1), c(2), ..., c(M bit -1). The sequence generator 404 may generate the scrambling sequence using an algorithm (eg, a hash function) or a portion of the scrambling ID.

[0080] In one embodiment, process 400 may include a channel encoder 406 that encodes data and / or control information into a codeword sequence. For example, the codeword sequence may have a sequence such as b(0), b(1), b(2), ..., b(M bit -1). Channel encoder 406 may encode data and / or control information using polar codes, repetition codes, simplex codes, turbo codes, convolutional codes, low-density parity-check codes, or other suitable codes.

[0081] In some cases, process 400 may include a scrambler 408 that scrambles the codeword sequence using a scrambling sequence. For example, scrambler 408 may perform an exclusive OR (XOR) operation using the codeword sequence and the scrambling sequence as inputs. The output of the XOR operation may be the scrambled bits of the codeword sequence. For example, the scrambled bits of the codeword sequence may have a value such as Such forms as Modulo 2. For transmission bursts involving multiple repetitions (e.g., unicast, multicast, or broadcast) of a codeword carrying data / control information, the scrambling sequence may be repeatedly applied to each repetition of the codeword. Thus, the transmission scheme of the codeword remains the same within a given transmission burst.

[0082] Go to Figure 5 , an example of a process 500 for generating a reference sequence for a reference signal in a transmission burst may be performed by a transmitter such as BS 105 or UE 110. Process 500 may include a reference ID generator 502 that generates a reference scrambling ID In one embodiment, the reference scrambled ID may have a length (Q) greater than or equal to 31 bits. The reference ID generator 502 may generate a random or pseudo-random number as the reference scrambled ID. The reference ID generator 502 may be based on a cell ID associated with the communication network 100. UE ID or UE group ID Index of the transmission burst and the relative symbol position (l0) of the reference signal relative to the beginning of the transmission burst (l1). n ) to generate a reference scrambling ID, as shown in the following formula:

[0083] Module (2 Q -1)

[0084] Among them, the weighting factor is greater than or equal to 0, Q k ≥0, k=1,2,3,4. The BS 105 and / or the UE 110 may optionally use a reference scrambling ID ( Figure 4 )same reference scrambling ID.

[0085] In some cases, process 500 may include a reference sequence generator 504 that generates a reference scrambling sequence based on the reference scrambling ID generated by reference ID generator 502. Reference sequence generator 504 may use an algorithm (e.g., a hash function) or a portion of the reference scrambling ID to generate the reference scrambling sequence. For example, the reference scrambling sequence may have a form such as c(0), c(1), c(2), ...

[0086] In an optional aspect, process 500 may include a mapping operator 506 that maps a reference scrambling sequence to a reference sequence for a transmission burst having multiple repetitions of a reference signal. In one example, mapping operator 506 may map a reference scrambling sequence (e.g., a binary pseudo-random noise sequence) to a reference sequence (e.g., a 4-bit quaternary sequence) by repeatedly applying a binary sequence to generate real and imaginary parts of a quaternary sequence using the following formula:

[0087]

[0088] Where c(k) is the output of the reference sequence generator 504 (e.g., a reference scrambling sequence). The reference sequence generator 504 outputs the base sequence used by the DL or UL reference signal to the multiplexer or radio resource mapping component. Therefore, as described herein, the base sequence applied to the reference signal remains the same within a given transmission burst.

[0089] Go to Figure 6 , in certain aspects, an example of a process 600 for sending repeated information in a transmission burst, wherein each repeated information in the transmission burst has the same sequence as generated by process 400 and / or process 500. Scrambler 604 in process 600 is the same or similar to scrambler 408 in process 400. Similarly, reference sequence generator 612 in process 600 is the same or similar to reference sequence generator 504 in process 500. Process 600 may be performed by a transmitter such as UE 110 or BS 105. Process 600 may include a channel encoder 602 that encodes data and / or control information into a sequence of codewords. Channel encoder 602 may encode data and / or control information using polar codes, repetition codes, simplex codes, turbo codes, convolutional codes, low-density parity-check codes, or other suitable codes.

[0090] In some embodiments, process 600 may include a scrambler 604 that scrambles the codeword sequence. As described above, the scrambler 604 in process 600 is the same or similar to the scrambler 408 in process 400. For example, the scrambler 604 may obtain a scrambling ID as described above. The scrambling ID may be a random number or a pseudo-random number, or an ID based on a weighted combination of a cell ID, a UE ID or a UE group ID associated with the communication network 100, and / or an index of a transmission burst. The scrambler 604 may generate a scrambling sequence based on the scrambling ID. The scrambler 604 may perform an exclusive or (XOR) operation using the codeword sequence and the scrambling sequence as inputs. The output of the XOR operation may be a scrambled bit of the codeword sequence. In an example of a scrambling process, a codeword sequence of 10101001 is scrambled by a scrambling sequence of 11100111 using an XOR operation to form a scrambled bit of 01001110.

[0091] In one aspect of the present disclosure, the same scrambling sequence may be applied to multiple repeated codeword sequences for burst transmission. By using the same scrambling sequence for repeated codeword sequences, the transmitter (UE 110 or BS 105) may save computational resources compared to applying different scrambling sequences to repeated codeword sequences.

[0092] In some embodiments, the process 600 may optionally include a linear modulator 606. The linear modulator 606 may map the bits of the codeword sequence onto, for example, the I (real) and Q (imaginary) components of a quadrature amplitude modulation (QAM) symbol, and then arrange them into a sequence of a specific length according to the number of subcarriers. The linear modulator 606 may output modulation symbols. The modulation symbols may be constructed as orthogonal frequency division multiplexing (OFDM) symbols, frequency division multiple access (FDMA) symbols, time division multiple access (TDMA) symbols, code division multiple access (CDMA) symbols, or other suitable symbols.

[0093] In an optional embodiment, process 600 may optionally include a transform precoder 608. Transform precoder 608 may spread modulation symbols across multiple carrier subbands to reduce the peak-to-average power ratio. Transform precoder 608 may use discrete Fourier transform, Zadoff-Chu matrix transform, or other techniques to transform modulation symbols into transformed symbols.

[0094] In some implementations, process 600 may optionally include an inverse fast Fourier (IFF) transformer 610. IFF transformer 610 may transform symbols from the frequency domain to the time domain to generate time domain symbols.

[0095] In one embodiment, process 600 may include reference sequence generator 612. As described above, reference sequence generator 612 in process 600 is the same as or similar to reference sequence generator 504 in process 500. Reference sequence generator 612 may obtain a reference scrambled ID as described above. The reference scrambling ID may include a random or pseudo-random number, or may be based on a cell ID associated with the communication network 100. A number that is a weighted combination of a UE ID or UE group ID, an index of a transmission burst, and a relative symbol position of a reference signal relative to the start of the transmission burst. The reference sequence generator 612 may generate a reference scrambling sequence based on the reference scrambling ID. In some embodiments, the reference sequence generator 612 may map a reference scrambling sequence (e.g., a binary pseudo-random noise sequence) to a reference sequence (e.g., a 4-bit quaternary sequence).

[0096] In some implementations, process 600 may optionally include a multiplexer (MUX) 614 that interleaves the time domain symbols and the reference sequence to generate symbols / RS bits.

[0097] In some implementations, process 600 may include a radio resource mapper 616 that maps symbols / RS bits to transmission symbols (eg, OFDM symbols). Transmission symbols (eg, OFDM symbols in the time domain) may be mapped to different radio resources for transmission.

[0098] In some implementations, process 600 may apply a tensor operation 618 to perform phase rotation (i.e., randomization) on the transmission symbols to mitigate inter-cell interference. Tensor operation 618 may apply a phase rotation to each symbol in a transmission burst for a serving cell, as described in more detail below. Phase Rotation It can be a relative symbol index (l) within a time slot (e.g., and a function of the cell ID of the serving cell. Alternatively or additionally, the phase rotation may be a function of the transmission burst index. The phase rotation value may be found in a lookup table or derived from an equation. After the phase rotation operation, a tensor operation 618 may output a transmission symbol with phase rotation for transmission.

[0099] In some aspects of the disclosure, a transmitter may transmit a transmission burst including repeated copies of a transmission symbol.

[0100] Reference Figure 7An example of an extended repetitive transmission 700 that may be generated by the operation of process 600 (without the optional tensor operation 618) includes a first transmission burst 710 having repetitive information scrambled by a first scrambling sequence and a second transmission burst 740 having the same repetitive information as the first transmission burst 710 but scrambled by a second scrambling sequence that is different from the first scrambling sequence. In addition, in some embodiments, the second transmission burst 740 is transmitted on a different resource than the first transmission burst 710 for transmission diversity. In addition, both the second transmission burst, the first transmission burst 710, and the second transmission burst 740 are transmitted by the same transmitter (e.g., UE 110 or BS 105).

[0101] More specifically, the first transmission burst 710 may include symbols 712, 714, 716, 718, 720, 722. The symbols 712, 714, 716, 718, 720, 722 may be redundant. The symbols 712, 714, 716, 718, 720, 722 may carry the same information. The symbols 712, 714, 716, 718, 720, 722 may be scrambled by a first scrambling sequence. The symbols 712, 714, 716, 718, 720, 722 may be interleaved with a reference signal scrambled with a first reference scrambling sequence. The first scrambling sequence and the first reference scrambling sequence may be the same or different.

[0102] In some embodiments, the second transmission burst 740 may include symbols 742, 744, 746. Symbols 742, 744, 746 may be redundant. Symbols 742, 744, 746 may carry the same information. Symbols 742, 744, 746 may be scrambled by a second scrambling sequence. Symbols 742, 744, 746 may be interleaved with a reference signal scrambled with a second reference scrambling sequence. The second scrambling sequence and the second reference scrambling sequence may be the same or different.

[0103] In certain aspects, the first scrambling sequence may be different from the second scrambling sequence. The first scrambling sequence may be generated based on a first scrambling ID. The second scrambling sequence may be generated based on a second scrambling ID. The first scrambling ID may be different from the second scrambling ID. The first reference scrambling sequence may be different from the second reference scrambling sequence. The first reference scrambling sequence may be generated based on the first reference scrambling ID. The second reference scrambling sequence may be generated based on the second reference scrambling ID. The first reference scrambling ID may be different from the second reference scrambling ID. The transmitter may send a first transmission burst 710 via a first transmission scheme (e.g., frequency hopping, redundant version cycle, precoder cycle, etc.). The transmitter may send a second transmission burst 740 via a second transmission scheme (e.g., frequency hopping, redundant version cycle, precoder cycle, etc.).

[0104] Although the symbols 712, 714, 716, 718, 720, 722 of the first transmission burst 710 are shown as being consecutive in time, the symbols 712, 714, 716, 718, 720, 722 may not be consecutive in time.

[0105] Steering Figure 8 , by the optional tensor operation 618 (see Figure 6 ) has the same amount of phase rotation applied across all resource elements of a symbol. For example, in this example, resources 811-816, 821-826, 831-836, 841-846 are transmitted by a transmitter (e.g., UE 110 or BS 105) in accordance with aspects of the present disclosure to provide repetition information and mitigate inter-cell interference.

[0106] For example, the information in resources 811-816 (e.g., symbols, time slots, or mini-time slots) may be redundant. In addition, the information in resources 811-816 may be scrambled by the same scrambling sequence. The information in resources 821-826, 831-836, and 841-846 may also be redundant, and the corresponding same scrambling sequence is applied to each of these sets, although the scrambling sequence for each set is different, for example, there are four different scrambling sequences.

[0107] In some cases, resource 811 may include a first phase rotation. Resource 812 may include a second phase rotation. Resource 813 may include a third phase rotation. Resource 814 may include a fourth phase rotation. Resource 815 may include a fifth phase rotation. Resource 816 may include a sixth phase rotation. The first, second, third, fourth, fifth, and sixth phase rotations may be different.

[0108] In one implementation, resource elements transmitted in the same symbol may have the same phase rotation. For example, resources 811, 821, 831, 841 may have a first phase rotation. Resources 814, 824, 834, 844 may have a fourth phase rotation.

[0109] Now turn to Fig. 9 , a process 900 for receiving a transmission burst may be performed by a receiver such as UE 110 or BS 105. Process 900 may include a demultiplexer (DEMUX) 902. DEMUX 902 may receive a transmission burst having repeated copies of transmission symbols. DEMUX 902 may separate the transmission symbols from any reference signals. DEMUX 902 may provide the transmission symbols into a first stream and the reference signals into a second stream.

[0110] In some optional embodiments, the process 900 may include a symbol-level phase derotator 904 that removes the phase rotation inserted into the transmission symbol prior to transmission (at the tensor operation 618). Similarly, the process 900 may include a symbol-level phase derotator 906 that removes the phase rotation inserted into the reference signal prior to transmission (at the tensor operation 618).

[0111] In some embodiments, process 900 may include a descrambler 908 for descrambling the reference signal (after removing the phase rotation by symbol-level phase derotator 906). Descrambler 906 may descramble the reference signal by performing, for example, an XOR operation using a reference descrambling sequence and the reference signal as inputs to generate a reference sequence. For example, descrambler 908 may be the same as or similar to scrambling / descrambling component 226 of UE 110 or scrambling / descrambling component 326 of BS 105.

[0112] In one embodiment, process 900 may include a channel estimation enhancer 910 that improves the quality of a channel used to transmit / receive a transmission burst based on a reference sequence.

[0113] In some embodiments, process 900 may optionally include a demodulator 912. Demodulator 912 may demodulate the modulation symbols to generate repeated copies of the scrambled bits. Demodulator 912 may receive feedback information (based on a reference sequence) from channel estimation enhancer 910 to improve reception (e.g., signal-to-noise ratio, signal-to-noise / interference ratio, ...).

[0114] In one embodiment, the process 900 may include a resource element (RE) level combiner 914. The RE level combiner 914 may receive repeated copies of the scrambled bits. Repeated copies of the scrambled bits may be used to construct a complete "copy" of the scrambled bits. For example, a first copy of the scrambled bits may include bit values ​​of bits 0-12 and 23-59 of the scrambled bits (e.g., a total of 100 bits). A second copy of the scrambled bits may include bit values ​​of bits 7-39 and 50-94. A third copy of the scrambled bits may include bit values ​​of bits 0-44 and 78-99. By combining the first and second copies of the scrambled bits, the receiver may receive only bits 0-94 of the scrambled bits. By combining the second and third copies of the scrambled bits, the receiver may receive only bits 0-44 and 50-99 of the scrambled bits. By combining the first and third copies of the scrambled bits, the receiver may receive only scrambled bits 0-59 and 78-99. However, by combining the first, second, and third copies of the scrambled bits, the receiver (via the RE stage combiner) may be able to construct a complete copy of the scrambled bits (bits 0-99).

[0115] In one aspect of the disclosure, the RE stage combiner 914 may send a full copy of the scrambled bits or a copy of the scrambled bits to the I / Q sample separator 918 .

[0116] In certain aspects of the present disclosure, the number of repetitions (i.e., copies of the scrambled bits sent by the transmitter) can be determined (e.g., by a transmitter, a receiver, BS 105 and / or a UE 110) based on channel estimates, bit error rates of transmissions, percentage of lost packets / bits, etc.

[0117] In alternative aspects of the present disclosure, the RE-level combiner 914 may combine all copies of the scrambled bits to construct a complete copy of the scrambled bits, if possible. In another aspect, the RE-level combiner 914 relies on less than all copies of the scrambled bits sent by the transmitter to construct a complete copy of the scrambled bits. In an alternative aspect, the RE-level combiner 914 may pause combining additional copies of the scrambled bits once a complete copy of the scrambled bits has been constructed.

[0118] In some aspects, process 900 may include an I / Q sample separator 918. The I / Q sample separator may separate the I and Q samples in the scrambled bits.

[0119] In some aspects of the present disclosure, the process 900 may include a descrambler 920 for descrambling the I and Q samples of the scrambled bits into a codeword sequence. The descrambler 920 may descramble the scrambled bits by performing, for example, an XOR operation using the descrambling sequence and the scrambled bits as inputs to generate a codeword sequence. In one example of the descrambling process, the descrambling sequence 11100111 is descrambled using an XOR operation to descramble the scrambled bits 01001110 to form a codeword sequence 10101001.

[0120] In one aspect of the disclosure, process 900 may include a decoder 922 that decodes a sequence of codewords into data and / or control information.

[0121] Reference Fig.10 , an example of method 1200 for sending a transmission burst can be performed by a transmitter (e.g., BS105 or UE110), wherein the BS105 includes a communication component 322, a repetition component 199, a generation component 324, a scrambling / descrambling component 326, a redundancy component 328, a modem 320, a processor 312 and / or a memory 316 of the BS105, and the UE 110 includes a communication component 222, a repetition component 198, a generation component 224, a scrambling / descrambling component 226, a redundancy component 228, a modem 220, a processor 212 and / or a memory 216 of the UE110.

[0122] At block 1005, the method 1000 may generate a first scrambling identity (ID). For example, a generating component 224, 324, a modem 220, 320, a processor 212, 312, and / or a memory 216, 316 of the UE 110 or the BS 105 may generate a scrambling ID

[0123] In some embodiments, the processor 212, 312, the modem 220, 320, the generating component 224, 324, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388, and / or subcomponents of the RF front end 288, 388 may be configured as and / or may define a means for generating a first scrambling identification (ID).

[0124] At block 1010, method 1000 may generate a first scrambling sequence based on a first scrambling ID. For example, a generating component 224, 324, a modem 220, 320, a processor 212, 312, and / or a memory 216, 316 of a UE 110 or BS 105 may generate a first scrambling sequence based on a first scrambling ID. To generate the scrambling sequence.

[0125] In some embodiments, the processor 212, 312, the modem 220, 320, the generating component 224, 324, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388 and / or subcomponents of the RF front end 288, 388 may be configured as and / or may define a means for generating a first scrambling sequence based on a first scrambling ID.

[0126] At block 1015, the method 1000 may scramble the first set of information based on the first scrambling sequence to generate a first plurality of information bits. For example, the scrambling / descrambling component 226, 326, the modem 220, 320, the processor 212, 312, and / or the memory 216, 316 of the UE 110 or BS 105 may perform an exclusive OR (XOR) operation using the codeword sequence and the scrambling sequence as inputs. The output of the XOR operation may be the scrambled bits of the codeword sequence.

[0127] In some embodiments, the processor 212, 312, the modem 220, 320, the scrambling / descrambling component 226, 326, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388 and / or subcomponents of the RF front end 288, 388 may be configured to and / or may define means for scrambling a first set of information based on a first scrambling sequence to generate a first set of multiple information bits.

[0128] At block 1020, the method 1000 may generate multiple repeated copies of the first plurality of information bits scrambled using the first scrambling sequence. For example, the redundancy component 228, 328, the modem 220, 320, the processor 212, 312, and / or the memory 216, 316 of the UE 110 or BS 105 may generate multiple repeated copies of the codeword sequence scrambled using the scrambling sequence.

[0129] In some embodiments, the processor 212, 312, the modem 220, 320, the repetition component 198, 199, the redundancy component 228, 328, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388, and / or subcomponents of the RF front end 288, 388 may be configured as and / or may define a unit for generating multiple repeated copies of a first set of multiple information bits scrambled using a first scrambling sequence.

[0130] At block 1025, the method 1000 may send a first transmission burst including each of the multiple repeated copies of the first plurality of information bits on different resources in the first plurality of resources in the communication channel. For example, the communication component 222, 322, the modem 220, 320, and / or the processor 212, 312 of the UE 110 or the BS 105 may send a transmission burst including multiple repeated copies of the plurality of information bits on different resources in the plurality of resources. The communication component 222, 322 may send the transmission burst to the transceiver 202, 302 or the transmitter 204, 304. The transceiver 202, 302 or the transmitter 204, 304 may convert the transmission burst to an electrical signal and send it to the RF front end 288, 388. The RF front end 288, 388 may filter and / or amplify the electrical signal. The RF front end 288, 388 may send the electrical signal as an electromagnetic signal via one or more antennas 265, 365.

[0131] In some embodiments, the processor 212, 312, the modem 220, 320, the communication component 222, 322, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388, and / or subcomponents of the RF front end 288, 388 can be configured as and / or can define a unit for sending a first transmission burst on different resources of a first set of multiple resources in a communication channel, wherein the first transmission burst includes each of multiple repeated copies of a first set of multiple information bits.

[0132] Alternatively or additionally, method 1000 may also include any of the above methods, further including: generating a second scrambling ID, generating a second scrambling sequence based on the second scrambling ID, scrambling the first group of information based on the second scrambling sequence to generate a second group of multiple information bits, generating a second transmission burst including multiple repeated copies of the second group of multiple information bits scrambled using the second scrambling sequence, and sending each of the multiple repeated copies of the second group of multiple information bits of the second transmission burst on different resources in a second group of multiple resources in a communication channel, wherein the second group of multiple resources is different from the first group of multiple resources.

[0133] Alternatively or additionally, method 1000 may also include any of the above methods, and further include: before sending each of the multiple repeated copies of the first group of multiple information bits of the first transmission burst, mapping the first group of multiple information bits into at least one symbol, and applying phase rotation to the at least one symbol.

[0134] Alternatively or additionally, the method 1000 may also include any one of the above methods, wherein different resources among the plurality of resources are continuous or discontinuous in the time domain.

[0135] Alternatively or additionally, method 1000 may also include any of the above methods, wherein each of the multiple repeated copies of the first group of multiple information bits of the first transmission burst further includes: transmitting across multiple time slots or multiple mini-time slots.

[0136] Alternatively or additionally, method 1000 may also include any of the above methods, wherein sending each of the multiple repeated copies of the first group of multiple information bits of the first transmission burst further includes: sending using a first fixed transmission scheme.

[0137] Alternatively or additionally, method 1000 may also include any of the above methods, wherein the first fixed transmission scheme includes one or more of a first redundancy version, a first precoding, or a first frequency mapping.

[0138] Alternatively or additionally, method 1000 may also include any one of the above methods, wherein generating the first scrambling sequence includes: generating a first pseudo-random noise sequence based on the first scrambling ID.

[0139] Alternatively or additionally, method 1000 may also include any of the above methods, wherein, when the communication channel is a broadcast channel or a multicast channel, the first scrambling ID is a cell ID, or when the communication channel is a unicast channel, the first scrambling ID is a user equipment ID.

[0140] Alternatively or additionally, method 1000 may also include any of the above methods, wherein the first group of information includes data information, control information, or both.

[0141] Alternatively or additionally, method 1000 may also include any of the above methods, further including: generating a reference scrambling ID, generating a reference scrambling sequence based on the reference scrambling ID, generating a reference sequence based on the reference scrambling sequence, multiplexing the reference sequence with at least one of the multiple repeated copies of the first group of multiple information bits, and sending the reference sequence together with at least one of the multiple repeated copies of the first group of multiple information bits.

[0142] Alternatively or additionally, method 1000 may also include any one of the above methods, wherein the reference scrambling sequence is a binary sequence, and generating the reference sequence includes: mapping the reference scrambling sequence to a quaternary sequence.

[0143] Alternatively or additionally, method 1000 may also include any of the above methods, wherein the first scrambling ID is a weighted combination of a cell ID or a random number, a user equipment (UE) ID or a UE group ID, and a transmission burst index.

[0144] Reference Fig.11 , an example of method 1100 for receiving a transmission burst can be performed by a receiver (e.g., BS105 or UE110), wherein the BS105 includes a communication component 322, a repetition component 199, a generation component 324, a scrambling / descrambling component 326, a redundancy component 328, a modem 320, a processor 312 and / or a memory 316 of the BS105, and the UE 110 includes a communication component 222, a repetition component 198, a generation component 224, a scrambling / descrambling component 226, a redundancy component 228, a modem 220, a processor 212 and / or a memory 216 of the UE 110.

[0145] At block 1105, method 1100 may receive a first transmission burst on different resources in a first set of multiple resources in a communication channel, the first transmission burst including multiple repeated copies of a first set of multiple information bits. For example, a communication component 222, 322, a modem 220, 320, and / or a processor 212, 312 of a UE 110 or BS 105 may receive a transmission burst. One or more antennas 265, 365 may receive an electromagnetic signal from one or more antennas 265, 365 of a UE 110. An RF front end 288, 388 may filter, amplify, and / or extract an electrical signal carried by the electromagnetic signal. A transceiver 202, 302 or a receiver 206, 306 may digitize the electrical signal and convert it into data, such as a transmission burst, and send it to a communication component 222, 322.

[0146] In some embodiments, the processor 212, 312, the modem 220, 320, the communication component 222, 322, the repetition component 198, 199, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388, and / or subcomponents of the RF front end 288, 388 may be configured as and / or may define a unit for receiving a first transmission burst comprising multiple repeated copies of a first plurality of information bits on different resources of a first plurality of resources in a communication channel.

[0147] At block 1110, the method 1100 may generate a first descrambling identification (ID). For example, a generating component 224, 324, a modem 220, 320, a processor 212, 312, and / or a memory 216, 316 of the UE 110 or BS 105 may generate a descrambling ID.

[0148] In some embodiments, the processor 212, 312, the modem 220, 320, the generation component 224, 324, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388, and / or subcomponents of the RF front end 288, 388 may be configured as and / or may define a unit for generating a first descrambling identification (ID).

[0149] At block 1115, method 1100 may generate a first descrambling sequence based on the first scrambling ID. For example, generation component 224, 324, modem 220, 320, processor 212, 312, and / or memory 216, 316 of UE 110 or BS 105 may generate a scrambling sequence based on the descrambling ID.

[0150] In some embodiments, the processor 212, 312, the modem 220, 320, the generation component 224, 324, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388, and / or subcomponents of the RF front end 288, 388 may be configured as and / or may define a means for generating a first descrambling sequence based on the first descrambling ID.

[0151] At block 1220, the method 1100 may descramble at least one of the multiple repeated copies of the first plurality of information bits based on the first descrambling sequence to generate a first set of information. For example, the scrambling / descrambling component 226, 326, the modem 220, 320, the processor 212, 312, and / or the memory 216, 316 of the UE 110 or BS 105 may perform an exclusive OR (XOR) operation using the scrambled bits and the descrambling sequence as inputs. The output of the XOR operation may be a codeword sequence.

[0152] In some embodiments, the processor 212, 312, the modem 220, 320, the scrambling / descrambling component 226, 326, the transceiver 202, 302, the receiver 206, 306, the transmitter 208, 308, the RF front end 288, 388, and / or subcomponents of the RF front end 288, 388 may be configured as and / or may define means for descrambling at least one of the multiple repeated copies of the first set of multiple information bits based on a first descrambling sequence to generate a first set of information.

[0153] The specific embodiments described above in conjunction with the accompanying drawings describe examples, but do not represent the only examples that can be implemented or within the scope of the claims. The term "example" used in this specification means "used as an example, instance or illustration", rather than "preferably" or "better than other examples". In order to provide an understanding of the described technology, the specific embodiments include specific details. However, these technologies can be implemented without these specific details. For example, without departing from the scope of the present disclosure, the functions and arrangements of the elements discussed can be changed. Moreover, each example can omit, replace, or add different processes or components as needed. For example, the described method can be performed in an order different from that described, and various steps can be added, omitted or combined. Moreover, in other examples, the features described about some examples can be combined. In some examples, well-known structures and devices are shown in block diagram form to avoid blurring the concept of the described examples.

[0154] It should be noted that the technology described herein can be used for various wireless communication networks, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other systems. The terms "system" and "network" are usually used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions 0 and A are usually referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is usually 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 can implement radio technologies 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 TMEtc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP LTE and Advanced LTE (LTE-A) are new versions of UMTS using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies, including cellular (e.g., LTE) communications on shared radio frequency spectrum bands. However, for the purpose of example, the specification here describes an LTE / LTE-A system or a 5G system, and the LTE terminology is used in most of the following descriptions, although these techniques may be applicable to other next generation communication systems.

[0155] 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 codes or instructions stored on a computer-readable medium, or any combination thereof.

[0156] The various illustrative blocks and components described in conjunction with the present disclosure may be implemented or executed with a specially programmed device designed to perform the functions described herein, such as, but not limited to, a processor, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The specially programmed processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The specially programmed processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in combination with a DSP core, or any other such configuration.

[0157] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, these functions can be stored as one or more instructions or codes on a non-transitory computer-readable medium or sent via a non-transitory computer-readable medium. Other examples and implementations are also within the scope and spirit of the present disclosure and the appended claims. For example, due to the nature of software, software, hardware, firmware, hard wiring, or any combination of these executed by a specially programmed processor can be used to implement the above functions. The features that implement the functions can also be physically located in various locations, including being distributed so that the various parts of the functions are implemented at different physical locations. Also, as used herein, including in the claims, the "or" used in a list of items starting with "at least one" represents a separate list, so that, for example, "at least one of A, B, or C" refers to A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0158] Computer readable media include computer storage media and communication media, and the communication media include any media that is convenient for transferring a computer program from one place to another. Storage media can be any available media that can be accessed by a general or special computer. By way of example and not limitation, computer readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure that can be accessed by a general or special computer, or a general or special processor. Moreover, any connection is suitable for being called a computer readable medium. For example, if software is sent from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology (such as infrared, radio and microwave), the definition of the medium includes coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology (such as infrared, radio and microwave). Disks and optical disks used in this application include compact discs (CDs), laser optical discs, optical discs, digital versatile discs (DVDs), floppy disks and blue-ray discs, wherein disks usually reproduce data magnetically, and optical discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0159] The description of the present disclosure is provided to enable those skilled in the art to make or use the present disclosure. It will be apparent to those skilled in the art that various modifications to the present disclosure will be apparent, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the present disclosure. In addition, although the elements of the described aspects may be described or claimed in singular form, the plural form may be considered unless expressly stated to be limited to the singular form. In addition, unless otherwise stated, all or a portion of any aspect may be used together with all or a portion of any other aspect. Therefore, the present disclosure is not limited to the examples and designs described in the present application, but is consistent with the widest range of principles and novel features disclosed in the present application.

[0160] 203454WO1 Appendix

[0161] Introduction: Scrambling Code Generation

[0162] · Scrambling sequence for physical data / control channels (see Fig.14 )

[0163] οBinary PN sequence

[0164] o PN sequence generator initiated by 31-bit scrambling ID

[0165] o Scrambling ID can be cell specific or UE specific. Cell specific scrambling ID is applied for broadcast / multicast channels.

[0166] UE-specific scrambling ID is applied to unicast channels

[0167] · Scrambling sequence of the reference signal (see Fig.15 )

[0168] o The reference signal is a quaternary sequence sent on DL and UL

[0169] For example, DMRS, CSI-RS, PT-RS, TRS, SRS

[0170] o The real and imaginary parts of the quaternary sequence are generated by the binary PN sequence generator

[0171] o PN sequence generator initiated by 31-bit scrambling ID

[0172] o Scrambling ID can be time-varying and cell / UE specific

[0173] Problem Statement

[0174] To achieve coverage enhancement, repetition-based transmission is desirable for downlink and uplink physical channels and reference signals

[0175] o Slot / mini-slot based repetition of data channels PDSCH / PUSCH

[0176] oRepetition of control channels PBCH / PDCCH / PUCCH

[0177] oBundling of reference signals across multiple slots / mini-slots

[0178] οRepeat / Bundling can be combined with frequency hopping

[0179] In this IDF, we studied complexity reduction and performance enhancements for repetition / bundling of DL and UL transmissions, including:

[0180] ο Simplified scrambling / descrambling process across multiple repetitions / bindings

[0181] To reduce the implementation complexity of the UE in combining / generating multiple copies of the DL physical channel / signal, the same scrambling sequence may be repeated across the bundled repetitions of the control / data channel and the reference signal

[0182] οIndication of changes in transmission scheme

[0183] In the presence of frequency hopping, RV cycling, or precoder cycling, different scrambling sequences may be applied to indicate a change in the transmission scheme

[0184] οInter-cell interference mitigation

[0185] To mitigate inter-cell interference, OFDM symbol-level phase randomization can be combined with a simplified scrambling process

[0186] Recommendation 1: Repeat the scrambling sequence within the transmission burst

[0187] Definition of transmission burst

[0188] o To achieve coverage enhancement for both DL and UL, the UE shall support extended transmission time with or without reduced capability

[0189] o Extended transmission can be continuous or non-continuous in the time domain

[0190] FD-FDD can ensure continuous transmission in DL and UL

[0191] HD-FDD or TDD may not be able to accommodate continuous transmission on DL or UL

[0192] o The extended transmission can be divided into one or more transmission bursts in the time domain ( Fig.16 )

[0193] · Transmission bursts can be Index, which spans multiple slots or multiple mini-slots

[0194] o Repetition / bundling of physical and reference signals in a transmission burst can be continuous or non-continuous in time

[0195] Within a transmission burst, the transmission scheme of codewords in the frequency / spatial domain remains unchanged

[0196] oRV, precoding and frequency mapping schemes are fixed for repetitions within the same transmission burst

[0197] o Apply at least different RV or precoding or frequency mapping schemes in different transmission bursts

[0198] Recommendation 1 (continued)

[0199] The scrambling sequence used to transmit the physical channel within the burst

[0200] o For a transmission burst (which may be unicast / multicast / broadcast) involving multiple repetitions of codeword information carrying data / control information, a binary scrambling sequence may be repeatedly applied to each repetition of the codeword

[0201] The PN sequence generator can scramble the ID by L bits Initialize, where L ≥ 31

[0202] The L-bit scrambled ID is the cell ID or a random number configured by upper layers and signaled via SI / RRC UE or UE group ID and the index of the transmission burst A weighted combination of

[0203]

[0204] Among them, the integer weight w k ≥0, k=1,2,3, and L≥31

[0205] Recommendation 1 (continued)

[0206] · Scrambling sequence used to transmit reference signals within bursts

[0207] o For multiple repeated transmission bursts involving RS, the binary PN sequence may be repeatedly applied to generate the real and imaginary parts of the quaternary sequence

[0208]

[0209] The PN sequence generator can be initialized with a Q-bit scrambling ID, where Q ≥ 31

[0210] o The Q-bit scrambled ID is the cell ID or a random number configured by upper layers and signaled via SI / RRC UE or UE group ID Index of the transmission burst and a weighted combination of the relative symbol positions of the RS signals relative to the start point (l0) of the transmission burst

[0211] Module (2 Q -1),

[0212] Among them, the integer weight q k ≥0, k=1,2,3,4, and Q≥31

[0213] When the RS is a DMRS of a control / data channel, the same scrambling ID may be used for the physical channel and the DMRS, i.e.

[0214]

[0215] Proposal 2: OFDM symbol-level phase rotation / randomization

[0216] To mitigate inter-cell interference, OFDM symbol-level phase rotation (randomization) can be applied after the transmitter’s radio resource mapping module (see Fig.17 )

[0217] The phase rotation (randomization) n is obtained by The constant amplitude, cell-specific and sign-changing pattern is specified by

[0218] οl: OFDM symbol index within the time slot,

[0219] ο Serving cell ID

[0220] In addition to relying on symbol index and serving cell ID, Can also be used as a function to transmit burst ID

[0221] At least the following options can be used to specify values ​​in the standard

[0222] ο Option 1: As a Look-up Table (LUT)

[0223] ο Option 2: In a closed form function

[0224] Recommendation 3: Simplified descrambling process (see Fig.18 )

[0225] Recursive combination improves performance without increasing memory size

[0226] DMRS bundling improves the quality of channel estimation

[0227] One-time descrambling of the physical channel reduces the complexity of the receiver

Claims

1. A method for wireless communication by a device, include: Generate a first scrambling identifier (ID); Based on the first scrambling ID, generate a first scrambling sequence; Scrambling a first group of information based on the first scrambling sequence to generate a first group of multiple information bits; generating a plurality of repeated copies of the first plurality of information bits scrambled based on the first scrambling sequence; as well as A first transmission burst including each of the multiple repeated copies of the first group of multiple information bits is sent on different resources in a first group of multiple resources in a communication channel, wherein sending each of the multiple repeated copies of the first group of multiple information bits of the first transmission burst also includes: sending across multiple time slots or multiple mini time slots.

2. The method according to claim 1, further comprising: include: Generate a second scrambled ID; Based on the second scrambling ID, generate a second scrambling sequence; scrambling the first group of information based on the second scrambling sequence to generate a second group of multiple information bits; generating a second transmission burst comprising a plurality of repeated copies of the second plurality of information bits scrambled based on the second scrambling sequence; as well as Each of the multiple repeated copies of the second plurality of information bits of the second transmission burst is transmitted on a different resource in a second plurality of resources in the communication channel, wherein the second plurality of resources is different from the first plurality of resources.

3. The method according to claim 1, further comprising: include: Prior to transmitting each of the plurality of repeated copies of the first plurality of information bits of the first transmission burst: mapping the first plurality of information bits to at least one symbol; and A phase rotation is applied to the at least one symbol.

4. The method according to claim 1, in, The different resources among the plurality of resources are continuous or discontinuous in the time domain.

5. The method according to claim 1, in, Transmitting each of the multiple repeated copies of the first plurality of information bits of the first transmission burst further comprises transmitting using a first fixed transmission scheme.

6. The method according to claim 5, in, The first fixed transmission scheme includes one or more of the following: a first redundancy version, a first precoding, or a first frequency mapping.

7. The method according to claim 1, in, Generating the first scrambling sequence includes generating a first pseudo-random noise sequence based on the first scrambling ID.

8. The method according to claim 1, in, When the communication channel is a broadcast channel or a multicast channel, the first scrambling ID is a cell ID, or, when the communication channel is a unicast channel, the first scrambling ID is a user equipment ID.

9. The method according to claim 1, in, The first set of information includes data information, control information, or both.

10. The method according to claim 1, further comprising: include: Generate a reference scrambled ID; Based on the reference scrambling ID, generating a reference scrambling sequence; generating a reference sequence based on the reference scrambling sequence; multiplexing the reference sequence with at least one of the plurality of repeated copies of the first plurality of information bits; as well as The reference sequence is transmitted along with at least one of the plurality of repeated copies of the first plurality of information bits.

11. The method according to claim 10, in: The reference scrambling sequence is a binary sequence; as well as Generating the reference sequence includes: mapping the reference scrambling sequence to a quaternary sequence.

12. The method according to claim 1, in, The first scrambling ID is a weighted combination of a cell ID or a random number, a user equipment (UE) ID or a UE group ID, and a transmission burst index.

13. An apparatus for wireless communication by a device, include: at least one processor; as well as a memory coupled to the at least one processor, the memory storing instructions executable by the at least one processor to configure the device to: Generate a first scrambling identifier (ID); Based on the first scrambling ID, generate a first scrambling sequence; Scrambling a first group of information based on the first scrambling sequence to generate a first group of multiple information bits; generating a plurality of repeated copies of the first plurality of information bits scrambled based on the first scrambling sequence; as well as A first transmission burst including each of the multiple repeated copies of the first group of multiple information bits is sent on different resources in a first group of multiple resources in a communication channel, wherein sending each of the multiple repeated copies of the first group of multiple information bits of the first transmission burst also includes: sending across multiple time slots or multiple mini time slots.

14. The device according to claim 13, in, The instructions are further executable by the at least one processor to configure the device to: Generate a second scrambled ID; Based on the second scrambling ID, generate a second scrambling sequence; scrambling the first group of information based on the second scrambling sequence to generate a second group of multiple information bits; generating a second transmission burst comprising a plurality of repeated copies of the second plurality of information bits scrambled based on the second scrambling sequence; as well as Each of the multiple repeated copies of the second plurality of information bits of the second transmission burst is transmitted on a different resource in a second plurality of resources in the communication channel, wherein the second plurality of resources is different from the first plurality of resources.

15. The device according to claim 13, in, The instructions are further executable by the at least one processor to configure the device to: Prior to transmitting each of the plurality of repeated copies of the first plurality of information bits of the first transmission burst: mapping the first plurality of information bits to at least one symbol; and A phase rotation is applied to the at least one symbol.

16. The device according to claim 13, in, The different resources among the plurality of resources are continuous or discontinuous in the time domain.

17. The device according to claim 13, in, Transmitting each of the multiple repeated copies of the first plurality of information bits of the first transmission burst further comprises transmitting using a first fixed transmission scheme.

18. The device according to claim 17, in, The first fixed transmission scheme includes one or more of the following: a first redundancy version, a first precoding, or a first frequency mapping.

19. The device according to claim 13, in, Generating the first scrambling sequence includes generating a first pseudo-random noise sequence based on the first scrambling ID.

20. The device according to claim 13, in, When the communication channel is a broadcast channel or a multicast channel, the first scrambling ID is a cell ID, or, when the communication channel is a unicast channel, the first scrambling ID is a user equipment ID.

21. The device according to claim 13, in, The first set of information includes data information, control information, or both.

22. The device according to claim 13, in, The instructions are further executable by the at least one processor to configure the device to: Generate a reference scrambled ID; Based on the reference scrambling ID, generating a reference scrambling sequence; generating a reference sequence based on the reference scrambling sequence; multiplexing the reference sequence with at least one of the plurality of repeated copies of the first plurality of information bits; as well as The reference sequence is transmitted along with at least one of the plurality of repeated copies of the first plurality of information bits.

23. The device according to claim 22, in: The reference scrambling sequence is a binary sequence; as well as Generating the reference sequence includes: mapping the reference scrambling sequence to a quaternary sequence.

24. The device according to claim 13, in, The first scrambling ID is a weighted combination of a cell ID or a random number, a user equipment (UE) ID or a UE group ID, and a transmission burst index.

25. An apparatus for wireless communication, include: means for generating a first scrambling identification (ID); means for generating a first scrambling sequence based on the first scrambling ID; means for scrambling a first set of information based on the first scrambling sequence to generate a first plurality of information bits; means for generating a plurality of repeated copies of the first plurality of information bits scrambled based on the first scrambling sequence; as well as A unit for sending a first transmission burst including each of the multiple repeated copies of the first plurality of information bits on different resources in a first group of multiple resources in a communication channel, wherein the unit for sending each of the multiple repeated copies of the first group of multiple information bits of the first transmission burst also includes: a unit for sending across multiple time slots or multiple mini time slots.

26. A computer-readable medium for wireless communication by a device, the computer-readable medium comprising instructions executable by at least one processor to cause the device to: Generate a first scrambling identifier (ID); Based on the first scrambling ID, generate a first scrambling sequence; Scrambling a first group of information based on the first scrambling sequence to generate a first group of multiple information bits; generating a plurality of repeated copies of the first plurality of information bits scrambled based on the first scrambling sequence; as well as A first transmission burst including each of the multiple repeated copies of the first group of multiple information bits is sent on different resources in a first group of multiple resources in a communication channel, wherein sending each of the multiple repeated copies of the first group of multiple information bits of the first transmission burst also includes: sending across multiple time slots or multiple mini time slots.

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