Generation of encoded pseudorandom sequences

Abstract

Methods, systems, and devices for wireless communication are described. A wireless device may generate an encoded pseudo-random using an encoder implementing error detection and / or error correction techniques. A bit sequence of information bits may be segmented into a plurality of bit groups, and each bit group may be mapped to a respective symbol to generate a plurality of ordered information symbols. A plurality of ordered information symbols may be encoded (e.g., by an encoder) to generate a plurality of codewords. Each codeword may be demapped to generate a plurality of sequences that are multiplexed to generate a pseudorandom sequence. A signal generated based on the pseudorandom sequence may be transmitted by a wireless device. In some examples, a wireless device may generate a reference signal based on an orthogonal or pseudo-orthogonal random sequence generated by applying an orthogonal cover code to a pseudo-random sequence.

Description

Cross-references

[0001] This patent application claims priority to U.S. patent application No. 18 / 157,991, entitled “GENERATION OF CODED PSEUDORANDOM SEQUENCES,” filed by LEI et al. on January 23, 2023, which claims priority to U.S. provisional patent application No. 63 / 359,670, entitled “GENERATION OF CODED PSEUDORANDOM SEQUENCES,” filed by LEI et al. on July 8, 2022, which is assigned to the assignee of this application. Technical Field

[0002] The following relates to wireless communications, including the generation of encoded pseudo-random sequences. Background Art

[0003] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcasting, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (e.g., long term evolution (LTE) systems, improved LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each of which supports wireless communication for a communication device (which may be referred to as a user equipment (UE)).

[0004] Devices of wireless communication systems (such as UEs and network entities) may use pseudo-random number generation techniques to support encoding and decoding of information. Some pseudo-random number generation techniques may be affected by cross-correlation and may be limited in the amount of information that the generated pseudo-random numbers can carry. Summary of the invention

[0005] The described technology relates to improved methods, systems, devices and apparatuses for supporting the generation of encoded pseudo-random sequences. For example, the described technology provides for the generation of encoded pseudo-random sequences by a wireless device using an encoder that implements error detection and / or error correction techniques. A bit sequence of information bits can be segmented into a plurality of bit groups, and each bit group can be mapped to a corresponding symbol to generate a plurality of ordered information symbols. The plurality of ordered information symbols can be encoded (e.g., by an encoder) to generate a plurality of codewords. Each codeword can be demapped to generate a plurality of sequences that are multiplexed to generate a pseudo-random sequence. A signal generated based on the pseudo-random sequence can be sent by a wireless device.

[0006] The described techniques also support the use of orthogonal cover codes (OCCs) applied to pseudo-random sequences to generate orthogonal or pseudo-orthogonal sequences. Ordered information bits can be segmented into bit subsets, and OCCs can be generated based on the bit subsets. OCCs are applied to an input pseudo-random sequence to generate multiple orthogonal or pseudo-orthogonal sequences. Reference signals can be generated based on multiple orthogonal or pseudo-orthogonal sequences.

[0007] A method for wireless communication at a wireless device is described. The method may include: segmenting a bit sequence of information bits into a set of multiple bit groups; mapping each bit group in the set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols; encoding the set of multiple ordered information symbols to generate a set of multiple codewords; demapping each codeword in the set of multiple codewords to generate a set of multiple sequences; multiplexing the set of multiple sequences to generate a pseudo-random sequence; and transmitting a signal generated based on the pseudo-random sequence.

[0008] An apparatus for wireless communication at a wireless device is described. The apparatus may include a processor and a memory coupled to the processor, the memory storing instructions, the instructions being used by the processor to cause the wireless device to perform the following operations: segmenting a bit sequence of information bits into a set of multiple bit groups; mapping each bit group in the set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols; encoding the set of multiple ordered information symbols to generate a set of multiple codewords; demapping each codeword in the set of multiple codewords to generate a set of multiple sequences; multiplexing the set of multiple sequences to generate a pseudo-random sequence; and transmitting a signal generated based on the pseudo-random sequence.

[0009] Another apparatus for wireless communication at a wireless device is described. The apparatus may include: means for segmenting a bit sequence of information bits into a set of multiple bit groups; means for mapping each bit group in the set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols; means for encoding the set of multiple ordered information symbols to generate a set of multiple codewords; means for demapping each codeword in the set of multiple codewords to generate a set of multiple sequences; means for multiplexing the set of multiple sequences to generate a pseudo-random sequence; and means for transmitting a signal generated based on the pseudo-random sequence.

[0010] A non-transitory computer-readable medium storing code for wireless communication at a wireless device is described. The code may include instructions for a processor to cause the wireless device to: segment a bit sequence of information bits into a set of multiple bit groups; map each bit group in the set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols; encode the set of multiple ordered information symbols to generate a set of multiple codewords; demap each codeword in the set of multiple codewords to generate a set of multiple sequences; multiplex the set of multiple sequences to generate a pseudo-random sequence; and transmit a signal generated based on the pseudo-random sequence.

[0011] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: receiving control signaling indicating that the wireless device can use single-stage randomization or multi-stage randomization, wherein the pseudo-random sequence can be generated based on multi-stage randomization.

[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: receiving control signaling indicating that the wireless device can use the OCC to generate a set of multiple orthogonal sequences based on the pseudo-random sequence, wherein the signal can be generated based on the OCC.

[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: receiving control signaling indicating a configuration for generating the pseudo-random sequence, wherein the pseudo-random sequence can be generated based on the configuration.

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, encoding the set of the plurality of ordered information symbols may include operations, features, units, or instructions for performing the following operations: encoding the set of the plurality of ordered information symbols using a codebook associated with an error detection code or an error correction code; and generating a codeword, the codeword comprising information symbols in the set of the plurality of ordered information symbols and a set of multiple check symbols, wherein the check symbols comprise cyclic redundancy check (CRC) symbols of the error detection code, parity check symbols of the error correction code, or a combination thereof.

[0015] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, for a given code rate or a given codebook size, codewords in the codebook may have a defined separation distance.

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the codeword may be generated using an error detection coding algorithm, which may be a Reed-Solomon code or a Bose-Chaudhuri-Hocquenghem code.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, each subset of information bits in a set of multiple subsets of information bits may be padded with zeros, each subset of information bits corresponding to an information symbol defined on a finite field, wherein the zero padding produces the bit sequence of information bits.

[0018] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: processing a set of multiple information bit subsets, each information bit subset corresponding to an information symbol, the processing comprising: multiplexing, interleaving, or both, the set of multiple information bit subsets to produce the set of multiple ordered information symbols.

[0019] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: initializing a second pseudo-random sequence generator based on the pseudo-random sequence, wherein the elements of the pseudo-random sequence may be binary or non-binary.

[0020] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second pseudo-random sequence generator includes one or more linear feedback shift registers, and operations on the one or more linear feedback shift registers can be defined on a binary finite field or a non-binary finite field.

[0021] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, initializing the second pseudo-random sequence generator may include operations, features, units, or instructions for performing the following operations: using the pseudo-random sequence that can be encoded and includes a set of multiple information symbols and check symbols as input to the initialized second pseudo-random sequence generator.

[0022] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: generating a set of multiple bit subsets based on a set of multiple ordered information bits; generating an OCC based on a first subset in the set of multiple bit subsets; applying the OCC to the pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences; and generating a reference signal based on the set of multiple orthogonal or pseudo-orthogonal random sequences.

[0023] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: multiplexing the set of multiple orthogonal or pseudo-orthogonal random sequences to generate a multiplexed signal, wherein the reference signal may be generated based on the multiplexed set of multiple orthogonal or pseudo-orthogonal random sequences.

[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, generating the OCC may include operations, features, units, or instructions for performing the following operations: generating the OCC using a closed-form formula, the closed-form formula including a Walsh-Hadamard code, a constant amplitude zero autocorrelation waveform sequence, a linear frequency modulation sequence, or any combination thereof.

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, applying the OCC may include operations, features, units, or instructions for performing the following operations: multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of the multiple orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequence can be segmented to generate the set of the multiple pseudo-random symbol subsets.

[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, applying the OCC may include operations, features, units, or instructions for performing the following operations: multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of the multiple orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequence can be repeated to generate the set of the multiple pseudo-random symbol subsets.

[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, applying the OCC may include operations, features, units, or instructions for performing the following operations: multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of the multiple orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are concatenated with one or more second pseudo-random sequences to generate the set of the multiple pseudo-random symbol subsets.

[0028] A method for wireless communication at a wireless device is described. The method may include: generating a set of multiple bit subsets based on a set of multiple ordered information bits; generating an OCC based on a first subset of the set of multiple bit subsets; applying the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences; and generating a reference signal based on the set of multiple orthogonal or pseudo-orthogonal random sequences.

[0029] An apparatus for wireless communication at a wireless device is described. The apparatus may include a processor and a memory coupled to the processor, the memory being operable for the processor to cause the wireless device to: generate a set of multiple bit subsets based on a set of multiple ordered information bits; generate an OCC based on a first subset of the set of multiple bit subsets; apply the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences; and generate a reference signal based on the set of multiple orthogonal or pseudo-orthogonal random sequences.

[0030] Another apparatus for wireless communication at a wireless device is described. The apparatus may include: means for generating a set of multiple bit subsets based on a set of multiple ordered information bits; means for generating an OCC based on a first subset of the set of multiple bit subsets; means for applying the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences; and means for generating a reference signal based on the set of multiple orthogonal or pseudo-orthogonal random sequences.

[0031] A non-transitory computer-readable medium storing code for wireless communication at a wireless device is described. The code may include instructions for a processor to cause the wireless device to: generate a set of multiple bit subsets based on a set of multiple ordered information bits; generate an OCC based on a first subset of the set of multiple bit subsets; apply the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences; and generate a reference signal based on the set of multiple orthogonal or pseudo-orthogonal random sequences.

[0032] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: multiplexing the set of multiple orthogonal or pseudo-orthogonal random sequences to generate a multiplexed signal, wherein the reference signal may be generated based on the multiplexed set of multiple orthogonal or pseudo-orthogonal random sequences.

[0033] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, generating the OCC may include operations, features, units, or instructions for performing the following operations: generating the OCC using a closed-form formula, wherein the closed-form formula may be a Walsh-Hadamard code, or a constant amplitude zero autocorrelation waveform sequence, or a linear frequency modulation sequence, or any combination thereof.

[0034] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, applying the OCC may include operations, features, units, or instructions for performing the following operations: multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of the multiple orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence can be segmented to generate the set of the multiple pseudo-random symbol subsets.

[0035] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, applying the OCC may include operations, features, units, or instructions for performing the following operations: multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of the multiple orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence may be repeated to generate the set of the multiple pseudo-random symbol subsets.

[0036] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, applying the OCC may include operations, features, units, or instructions for performing the following operations: multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of the multiple orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is concatenated with one or more second pseudo-random sequences to generate the set of the multiple pseudo-random symbol subsets.

[0037] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: segmenting a bit sequence of information bits into a set of multiple bit groups; mapping each bit group in the set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols; encoding the set of multiple ordered information symbols to generate a set of multiple codewords; demapping each codeword in the set of multiple codewords to generate a set of multiple sequences; and multiplexing the set of multiple sequences to generate a pseudo-random sequence including the multiple ordered information symbols.

[0038] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: receiving control signaling indicating a configuration for generating the set of multiple orthogonal or pseudo-orthogonal random sequences, wherein the set of multiple orthogonal or pseudo-orthogonal random sequences can be generated based on the configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 An example of a wireless communication system that supports generation of encoded pseudo-random sequences in accordance with one or more aspects of the present disclosure is shown.

[0040] Figure 2 An example of a process supporting generation of an encoded pseudo-random sequence in accordance with one or more aspects of the present disclosure is shown.

[0041] Figure 3 An example of a multi-stage randomization process that supports the generation of an encoded pseudo-random sequence in accordance with one or more aspects of the present disclosure is shown.

[0042] Figure 4 An example of an Orthogonal Cover Code (OCC) process that supports generation of encoded pseudo-random sequences in accordance with one or more aspects of the present disclosure is shown.

[0043] Figure 5 An example of a process flow supporting generation of an encoded pseudo-random sequence in accordance with one or more aspects of the present disclosure is shown.

[0044] Figure 6 and 7 A block diagram of a device supporting generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown.

[0045] Figure 8 A block diagram of a communications manager that supports generation of encoded pseudo-random sequences in accordance with one or more aspects of the present disclosure is shown.

[0046] Fig. 9 A schematic diagram of a system including a UE supporting generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown.

[0047] Fig.10 A schematic diagram of a system including a network entity supporting generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown.

[0048] Figures 11 to 13 A flow chart illustrating a method of supporting generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0049] Wireless devices (such as user equipment (UE) and network entities) can use pseudo-random sequence techniques to encode data. Pseudo-random sequences can be used to carry a small number of information bits (e.g., a cell identifier) ​​on downlink, uplink, and / or sidelink signals. Some pseudo-random sequence generation techniques may not be scalable to support higher radio frequency spectrum bands or an increased number of cells and / or UEs. In addition, current pseudo-random sequences may be limited in the amount of information that the sequence can carry and may be affected by cross-correlation, such as in a dual-port synchronization signal design.

[0050] The technology described herein supports improved pseudo-random sequence generation technology, which can support higher frequency band communication, improved autocorrelation, reduced cross-correlation and the increase of the number of cells / equipment in the wireless communication environment. The described technology includes a codeword technology for generating a pseudo-random sequence based on information bits. The codeword technology may include: the bit sequence of information bits is segmented into a bit group set, and each bit group in the bit group set is mapped to a corresponding symbol to generate a plurality of ordered information symbols. Each symbol can be encoded as a codeword set, and each codeword can be demapped to generate a plurality of sequences. Multiple sequences can be multiplexed to generate a pseudo-random sequence, and a signal generated based on a pseudo-random sequence can be sent.

[0051] The techniques described herein may also support multi-stage randomization. For example, a pseudo-random sequence generated using the techniques described herein may be used to initialize a second pseudo-random sequence generator (which may implement the pseudo-random techniques described herein or may be one or more linear feedback shift registers). Multi-stage randomization may support further reduced cross-correlation. Additionally or alternatively, orthogonal cover code (OCC) techniques may be used to further improve pseudo-random generation techniques. The OCC techniques described herein may support the generation of orthogonal or pseudo-orthogonal sequences. These techniques and other techniques will be described in further detail with respect to the accompanying drawings.

[0052] Aspects of the disclosure are first described in the context of a wireless communication system. Aspects of the disclosure are further described using a pseudo-random number generation process, a multi-stage pseudo-random number process, an OCC process, and a process flow chart. Aspects of the disclosure are further illustrated by apparatus diagrams, system diagrams, and flow charts involving the generation of encoded pseudo-random sequences, and are described with reference to these diagrams.

[0053] Figure 1 An example of a wireless communication system 100 that supports generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to other systems and radio technologies (including future systems and radio technologies not explicitly mentioned herein).

[0054] The network entities 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may include devices of different forms or with different capabilities. In various examples, the network entities 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network devices, among other terms. In some examples, the network entities 105 and the UE 115 may communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UE 115 and the network entity 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the network entity 105 and the UE 115 may support transmission of signals according to one or more radio access technologies (RATs).

[0055] UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, mobile, or both at different times. UEs 115 may be devices of different forms or with different capabilities. Figure 1 Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be capable of supporting communication with various types of devices (such as other UEs 115 or network entities 105, such as Figure 1 (shown in) communication.

[0056] As described herein, a node of the wireless communication system 100 (which may be referred to as a network node or a wireless node) may be a network entity 105 (e.g., any network entity described herein), a UE 115 (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, the node may be a UE 115. As another example, the node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of the example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of the example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In other aspects of the example, the first, second, and third nodes may be different relative to these examples. Similarly, reference to UE 115, network entity 105, apparatus, device, or computing system may include disclosure of UE 115, network entity 105, apparatus, device, or computing system as a node. For example, disclosure that UE 115 is configured to receive information from network entity 105 also discloses that the first node is configured to receive information from the second node.

[0057] In some examples, the network entities 105 can communicate with the core network 130, or communicate with each other, or both. For example, the network entities 105 can communicate with the core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3 or other interface protocols). In some examples, the network entities 105 can communicate with each other directly (e.g., directly between the network entities 105) or indirectly (e.g., via the core network 130) via the backhaul communication links 120 (e.g., according to X2, Xn or other interface protocols). In some examples, the network entities 105 can communicate with each other via the mid-haul communication links 162 (e.g., according to the mid-haul interface protocol) or the front-haul communication links 168 (e.g., according to the fronthaul interface protocol) or any combination thereof. The backhaul communication link 120, the mid-haul communication link 162, or the front-haul communication link 168 can be or include one or more wired links (e.g., electrical links, optical fiber links), one or more wireless links (e.g., radio links, wireless optical links), and other examples or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155. Components within a wireless communication system may be coupled (eg, operatively, communicatively, functionally, electronically, and / or electrically) to each other.

[0058] One or more of the network entities 105 described herein may include or may be referred to as a base station 140 (e.g., a base station transceiver, a radio base station, a NR base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a giga Node B (any of which may be referred to as a gNB), a 5G NB, a next generation eNB (ng-eNB), a home Node B, a home evolved Node B, or other suitable terminology). In some examples, the network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack that is physically or logically integrated in a single network entity 105 (e.g., a single RAN node, such as a base station 140).

[0059] In some examples, the network entity 105 can be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that can be configured to utilize a protocol stack that is physically or logically distributed between two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network entity 105 can include one or more of a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near real-time RIC (near RT RIC), a non-real-time RIC (non-RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit receive point (TRP). One or more components of the network entity 105 in the decomposed RAN architecture may be co-located, or one or more components of the network entity 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 of the decomposed RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).

[0060] The split of functions between CU 160, DU 165, and RU 170 is flexible and can support different functions, depending on the functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) performed at CU 160, DU 165, or RU 170. For example, a functional split of a protocol stack can be employed between CU 160 and DU 165, such that CU 160 can support one or more layers of a protocol stack and DU 165 can support one or more different layers of a protocol stack. In some examples, CU 160 can host upper protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functions and signaling (e.g., Radio Resource Control (RRC), Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU 160 may be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 may host lower protocol layers, such as layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functions and signaling, and may each be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack may be employed between the DU 165 and the RU 170, such that the DU 165 may support one or more layers of the protocol stack, and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between CU 160 and DU 165 or between DU 165 and RU 170 can be within the protocol layer (e.g., some functions of the protocol layer can be performed by one of CU 160, DU 165, or RU 170, while other functions of the protocol layer are performed by a different one of CU 160, DU 165, or RU 170). CU 160 can be further functionally split into CU control plane (CU-CP) and CU user plane (CU-UP) functions. CU 160 can be connected to one or more DUs 165 via mid-range communication links 162 (e.g., F1, F1-c, F1-u), and DU 165 can be connected to one or more RUs 170 via front-haul communication links 168 (e.g., open front-haul (FH) interface). In some examples, mid-range communication link 162 or front-range communication link 168 may be implemented according to an interface (eg, channel) between layers of a protocol stack supported by respective network entities 105 communicating via such communication links.

[0061] In a wireless communication system (e.g., wireless communication system 100), infrastructure and spectrum resources for radio access can support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to a core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as a donor entity or an IAB donor. One or more DUs 165 or one or more RUs 170 may be controlled in part by one or more CUs 160 associated with a donor network entity 105 (e.g., a donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). The IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by the DU 165 of the coupled IAB donor. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115, or may share the same antennas of the IAB node 104 (e.g., antennas of the RU 170) for access via the DU 165 of the IAB node 104 (e.g., referred to as virtual IAB-MT (vIAB-MT)). In some examples, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB nodes 104, UE 115) within a relay chain or within a configuration of an access network (e.g., downstream). In such a case, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of the IAB node 104) may be configured to operate according to the techniques described herein.

[0062] In the case of applying the techniques described herein in the context of a decomposed RAN architecture, one or more components of the decomposed RAN architecture may be configured to support the generation of encoded pseudo-random sequences, as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 104) may be performed in addition or alternatively by one or more components of the decomposed RAN architecture (e.g., an IAB node 104, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).

[0063] UE 115 may include or may be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable terminology, where a "device" may also be referred to as a unit, station, terminal, or client, among other examples. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a multimedia / entertainment device (e.g., a radio, MP3 player, or video device), a camera, a gaming device, a navigation / positioning device (e.g., a GNSS (Global Navigation Satellite System) device based on, for example, GPS (Global Positioning System), BeiDou, GLONASS, or Galileo, or a ground-based device), a tablet computer, a laptop computer, a netbook, a smartbook, a personal computer, a smart device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, virtual reality goggles, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), a drone, a robot / robotic device, a vehicle, a vehicle device, a meter (e.g., a parking meter, an electricity meter, a gas meter, a water meter), a monitor, a gas pump, an appliance (e.g., a kitchen appliance, a washing machine, a dryer), a location tag, a medical / healthcare device, an implant, a sensor / actuator, a display, or any other suitable device configured to communicate via a wireless or wired medium. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, among other examples, which may be implemented in various items such as appliances, or vehicles, meters, and other examples.

[0064] The UE 115 described herein may be able to communicate with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as network entities 105 and network devices, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, such as Figure 1 as shown in .

[0065] The UE 115 and the network entity 105 may wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" may refer to a set of RF spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of an RF spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating operations for the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used with both frequency division duplex (FDD) component carriers and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between a device and any portion (e.g., entity, sub-entity) of the network entity 105. For example, when referring to the network entity 105, the terms "sending," "receiving," or "communicating" may refer to any portion of the network entity 105 (e.g., base station 104, CU 160, DU 165, RU 170) of the RAN communicating with another device (e.g., directly or via one or more other network entities 105).

[0066] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling to coordinate operations for other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute RF Channel Number (EARFCN)) and may be identified according to a channel grid for discovery by a UE 115. A carrier may operate in a standalone mode, in which case a UE 115 may perform initial acquisition and connection via the carrier, or a carrier may operate in a non-standalone mode, in which case a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.

[0067] The communication links 125 shown in the wireless communication system 100 may include downlink transmissions (e.g., forward link transmissions) from the network entity 105 to the UE 115, uplink transmissions (e.g., reverse link transmissions) from the UE 115 to the network entity 105, or both, as well as other configurations of transmissions. A carrier may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry both downlink and uplink communications (e.g., in TDD mode).

[0068] A carrier may be associated with a particular bandwidth of the RF spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a set of bandwidths for carriers of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). Devices of the wireless communication system 100 (e.g., the network entity 105, the UE 115, or both) may have a hardware configuration that supports communications using a particular carrier bandwidth, or may be configurable to support communications using one of the carrier bandwidths in the set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network entity 105 or a UE 115 that supports concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate using a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0069] The signal waveform transmitted via the carrier wave may be composed of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may refer to a resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and the subcarrier spacing may be inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), so that a relatively high number of resource elements (e.g., in the transmission duration) and a relatively high order modulation scheme may correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time resources, and spatial resources (e.g., spatial layers, beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.

[0070] One or more numerologies for a carrier may be supported, and the numerologies may include subcarrier spacing (Δf) and cyclic prefixes. A carrier may be divided into one or more BWPs with the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications for a UE 115 may be limited to one or more active BWPs.

[0071] The basic time unit (which may be referred to as T s =1 / (Δf max ·N f ) seconds sampling period, Δf max It can indicate the supported subcarrier spacing, and N f The time intervals for the network entity 105 or the UE 115 may be expressed as multiples of a supported discrete Fourier transform (DFT) size). The time intervals of the communication resources may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0072] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of symbol periods (e.g., depending on the length of a cyclic prefix added in front of each symbol period). In some wireless communication systems 100, a time slot may be further divided into a plurality of micro-time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N) micro-time slots. f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0073] A subframe, a time slot, a mini-time slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in the form of bursts of shortened TTIs (sTTIs)).

[0074] Carriers may be used to multiplex physical channels for communication according to various techniques. For example, one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique may be used to multiplex physical control channels and physical data channels via a downlink carrier for signaling. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a set of symbol periods and may extend across a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a group of UEs 115. For example, one or more of the UEs 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates at one or more aggregation levels arranged in a cascaded manner. The aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with the coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0075] The network entity 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with the network entity 105 (e.g., using a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other identifier) ​​used to distinguish adjacent cells. In some examples, a cell may also refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors (such as the capabilities of the network entity 105), such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area. For example, a cell may be or include a building, a subset of a building, or an external space between or overlapping coverage areas 110, as well as other examples.

[0076] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 115 with a service subscription to a network provider that supports the macro cell. A small cell may be associated with a lower-power network entity 105 (e.g., a lower-power base station 140) than a macro cell, and the small cell may operate using the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to a UE 115 with a service subscription to a network provider, or may provide restricted access to a UE 115 associated with a small cell (e.g., a UE 115 in a closed subscriber group (CSG), a UE 115 associated with a user in a residence or office). A network entity 105 may support one or more cells, and may also support communication via one or more cells using one or more component carriers.

[0077] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0078] In some examples, the network entities 105 (e.g., base stations 140, RUs 170) may be mobile and, therefore, provide communication coverage for mobile coverage areas 110. In some examples, different coverage areas 110 associated with different technologies may overlap, but the different coverage areas 110 may be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies may be supported by different network entities 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of network entities 105 provide coverage for respective coverage areas 110 using the same or different radio access technologies.

[0079] Some UEs 115 (e.g., MTC or IoT devices) may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or a network entity 105 (e.g., a base station 140) without human intervention. In some examples, M2M communication or MTC may include communication from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents the information to a human interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, climate and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based service billing. In one aspect, the technology disclosed herein may be applicable to MTC or IoT UEs. MTC or IoT UE may include MTC / enhanced MTC (eMTC, also known as CAT-M, Cat M1) UE, NB-IoT (also known as CAT NB1) UE, and other types of UE. eMTC and NB-IoT may refer to future technologies that may evolve from or be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (further enhanced eMTC), and mMTC (massive MTC), and NB-IoT may include eNB-IoT (enhanced NB-IoT) and FeNB-IoT (further enhanced NB-IoT).

[0080] Some UEs 115 may be configured to employ an operating mode that reduces power consumption, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception rather than concurrent transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power conservation techniques for UE 115 include entering a power-saving deep sleep mode when not engaged in active communications, operating using limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.

[0081] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC). UE 115 can be designed to support ultra-reliable, low-latency or critical functions. Ultra-reliable communication can include private communication or group communication, and can be supported by one or more services (such as push-to-talk, video or data). Support for ultra-reliable, low-latency functions can include prioritization of services, and such services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency and ultra-reliable low-latency can be used interchangeably in this article.

[0082] In some examples, the UE 115 may be configured to support direct communication with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 in a group that are performing D2D communication may be within a coverage area 110 of a network entity 105 (e.g., a base station 140, a RU 170), and the network entity 105 may support aspects of such D2D communication configured (e.g., scheduled) by the network entity 105. In some examples, one or more UEs 115 in such a group may be outside the coverage area 110 of the network entity 105 or may otherwise be unable or not configured to receive transmissions from the network entity 105. In some examples, groups of UEs 115 communicating via D2D communication may support a one-to-many (1:M) system, in which each UE 115 transmits to each other UE 115 in the group. In some examples, network entity 105 may facilitate scheduling of resources for D2D communications. In some other examples, D2D communications may be performed between UEs 115 without involving network entity 105.

[0083] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these items. Vehicles can use signals to send information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in a V2X system can communicate with roadside infrastructure (such as roadside units), or communicate with a network via one or more network nodes (e.g., network entity 105, base station 140, RU 170) using vehicle-to-network (V2N) communication, or both.

[0084] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connection, and other access, routing or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets to an external network or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by a network entity 105 (e.g., a base station 140) associated with the core network 130. User IP packets may be transmitted through a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to an IP service 150 for one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0085] The wireless communication system 100 may operate using one or more frequency bands, which may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Typically, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band, because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features (which may be referred to as clusters), but the waves may be sufficient to penetrate the structure for macro cells to provide service to UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to communications using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0086] The wireless communication system 100 may also operate using a super high frequency (SHF) region (which may be in the range of 3 GHz to 30 GHz) (also referred to as a centimeter band) or using an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also referred to as a millimeter band). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between a UE 115 and a network entity 105 (e.g., a base station 140, a RU 170), and the EHF antennas of the corresponding devices may be smaller and more closely spaced than UHF antennas. In some examples, such techniques may facilitate the use of antenna arrays within a device. However, the propagation of EHF transmissions may suffer even greater attenuation and shorter distances than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may differ depending on the country or regulatory agency.

[0087] The wireless communication system 100 can utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 can employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology using unlicensed bands (such as the 5 GHz industrial, scientific, and medical (ISM) band). When operating using unlicensed RF spectrum bands, devices (such as network entities 105 and UE 115) can employ carrier sensing for conflict detection and avoidance. In some examples, operations using unlicensed bands can be based on a carrier aggregation configuration of component carriers that operate in conjunction with licensed bands (e.g., LAA). Operations using unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, as well as other examples.

[0088] The network entity 105 (e.g., base station 140, RU 170) or UE 115 may be equipped with multiple antennas, which may be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the network entity 105 or UE 115 may be located within one or more antenna arrays or antenna panels (which may support MIMO operations or transmit or receive beamforming). For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with the network entity 105 may be located at different geographical locations. The network entity 105 may include an antenna array having antenna ports of a set of rows and columns that the network entity 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals sent via the antenna ports.

[0089] The network entity 105 or UE 115 can use MIMO communication to exploit multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. Such a technology may be referred to as spatial multiplexing. For example, a transmitting device may send multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO) (where multiple spatial layers are sent to the same receiving device) and multi-user MIMO (MU-MIMO) (where multiple spatial layers are sent to multiple devices).

[0090] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to form or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array so that some signals propagating along a specific orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals transmitted via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of the antenna elements may be defined by a set of beamforming weights associated with a specific orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0091] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication at the bearer or PDCP layer may be IP-based. The RLC layer may perform packet segmentation and reassembly for transmission via logical channels. The MAC layer may perform priority handling and multiplexing of logical channels to transport channels. The MAC layer may also implement error detection techniques, error correction techniques, or both to support retransmission to improve link efficiency. In the control plane, the RRC layer may provide the establishment, configuration, and maintenance of an RRC connection (which supports radio bearers for user plane data) between the UE 115 and the network entity 105 or the core network 130. The PHY layer may map transport channels to physical channels.

[0092] Devices (e.g., network entity 105 and UE 115) may support the use of pseudo-random sequences to encode information bits (such as cell identifiers, UE group identifiers, antenna port indexes, and / or status indications). Such information may be carried in a pseudo-random sequence sent on a downlink, uplink, and / or sidelink signal. Current pseudo-random sequence generation techniques, which may be based on a polynomial structure, may be limited by a small pool size, which may limit the number of devices or cells. In addition, current pseudo-random sequence generation techniques may be affected by cross-correlation (e.g., in a dual-port synchronization signal design).

[0093] The technology described herein can support improved pseudo-random sequence generation technology based on coding structure (rather than polynomial). The described technology can improve autocorrelation and cross-correlation characteristics, expand the pool size of random sequences, and can support sequence detection based on reuse correlation without implementing a decoder at a receiver device (e.g., UE 115 or network entity 105). Specifically, the technology proposes the use of an encoder (e.g., an error detection / correction encoder) that uses multiple codewords including information symbols and check symbols. The check symbol can be a cyclic redundancy check (CRC) symbol of an error detection codebook or a parity check symbol of an error correction codebook. In addition, the described technology supports multi-stage randomization and OCC techniques for further pseudo-random code improvement.

[0094] Figure 2 An example of a process 200 for supporting the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The process 200 may be performed as described in relation to Figure 1 The described network entity 105 and / or UE 115 may be implemented. For example, the UE 115 may encode information bits (e.g., UE group identifier) ​​into a pseudo-random sequence generated according to the process 200, and the pseudo-random sequence encoding the information bits may be sent to the network entity 105 or another UE 115.

[0095] At 210, multiple subsets of information bits (e.g., subset 205, including subsets 205-a to subset 205-b) may be processed. In some cases, the sequence of information bits is divided into multiple subsets, such as N subsets. For example, process 200 may be used to generate a binary or non-binary pseudo-random sequence carrying K information bits (1≤K≤q*M) from N subsets (N≥1). In one example, the cell ID may be in subset #1, the antenna port index may be in subset #2, and so on. Each subset of information bits may correspond to an information symbol, such as information corresponding to a cell identifier, an antenna port index, a UE group identifier, or a status indication field. It should be understood that other types of encodable information are contemplated to be within the scope of the present disclosure. The information and configuration (e.g., error rate, coding rate, number of sequences, number of groups) may depend on the type of information set. The processing may include bit multiplexing and / or interleaving of the information bits, which may produce a bit sequence 215 of information bits (e.g., q*M bits). Depending on the coding structure, the information bit subset (e.g., subset 205) may be zero-padded prior to multiplexing and / or interleaving. For example, zero padding may be used to ensure that segments of a bit group include an equal number of bits q. q*M bits (e.g., the number of bits) may be indexed as b 0 、b 1 ,…b qM-1 .

[0096] At 220, the bit sequence 215 of information bits can be segmented into a set of bit groups (e.g., bit group 225-a and bit group 225-b), a total of M groups. Each bit group can have an equal number of bits q, such that the total number of bits across the groups is q * M. At 230 (e.g., 230-a to 230-b), each group 225 of size q is mapped to an information symbol 235 (e.g., including information symbol 235-a to information symbol 235-b), such that an ordered set of information symbols is generated. Each information symbol in the ordered set of information symbols corresponds to a group 225. The symbols can be non-binary (e.g., complex) and can correspond to different amplitudes and / or phases of a waveform.

[0097] The information symbols 235 are input into an encoder 240, which can add parity check symbols and / or CRC symbols. The encoder 240 can be an error-detection encoder or an error-correction encoder. An error-detection encoder can add CRC symbols, and an error-correction encoder can add parity check bits. The encoder 240 can use a codebook of an error-detection / correction code that includes multiple codewords. Each information symbol 235 can be mapped to a codeword that includes both the information symbol and a check symbol (e.g., a CRC symbol). In some examples, the information symbol 235 is first encoded into an error-detection codeword A, and the codeword A is further encoded into an error-correction codeword A'. The codebook used by the encoder 240 can be selected from a family of maximum distance separable codes such as Reed-Solomon codes or Bose-Chaudhuri-Hocquenghem codes, for example, to improve the correlation properties of the resulting pseudo-random sequence. Using distance separable codes can reduce or minimize the cross-correlation of the pseudo-random sequence. The encoder 240 can generate L - M parity check symbols for the M information symbols. The M symbols can be input into the encoder 240, and the encoder can add additional symbols (e.g., parity check symbols), resulting in L symbols, where the symbols L - M are parity check symbols.

[0098] Each encoded symbol 245 output by the encoder 240 (e.g., a codeword, including encoded symbol 245-a to 245-b) is demapped at 250 (e.g., at 250-a to 250-b) to generate a plurality of sequences (e.g., sequence 255, such as sequence 255-a to 255-b). The demapping at 250 can produce L sequences 255. Each short sequence W l can be mapped to a symbol C l , where 0 ≤ l < L. The L symbols {C l , 0 ≤ l < L} can be formed by at a 2 qThe short sequences 255 generated by the mapping at 250 are concatenated and / or multiplexed at 260 to generate a pseudo-random sequence 265 (e.g., Z w ). The short sequence 255 may be a channel symbol or a modulation symbol. The demapping technique at 250 may be the opposite of the technique used for mapping at 230. The pseudo-random sequence 265 may be binary or complex. The pseudo-random sequence 265 may be obtained by 0 , W 1 ,…W L-1 The L short sequences of the indexes are multiplexed or concatenated to construct.

[0099] In some cases, a device such as UE 115 may receive signaling indicating a configuration for performing process 200. The configuration may indicate a code / algorithm used by an encoder, a coding rate, a mapping or demapping technique, a number of sequences or groups, or a combination thereof. In addition, as described herein, in addition to process 200 and OCC techniques, multi-stage randomization may also be used. In some examples (e.g., in an uplink example), a configuration for pseudo-random sequence generation may be included in system information signaling.

[0100] Figure 3 An example of a multi-stage randomization process 300 that supports the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The multi-stage randomization process 300 may be performed as described with respect to Figure 1 The described network entity 105 and / or UE 115 are implemented. For example, the UE 115 may encode information bits (e.g., UE group identifier) ​​into a pseudo-random sequence generated according to the multi-stage randomization process 300, and the pseudo-random sequence encoding the information bits may be sent to the network entity 105 or another UE 115.

[0101] To further reduce (e.g., via Figure 2 The output pseudo-random sequence can be used to initialize the second pseudo-random sequence generator 315. The second pseudo-random sequence generator 315 can be implemented as described in Figure 2 The process 200 described herein may alternatively use a different algorithm / technique, such as a linear feedback shift register. A linear feedback shift register may be an example of a register as used by an m-sequence technique or a Gold sequence technique.

[0102] For example, from Figure 2 The pseudo-random sequence Z output by process 200 (or by another process) w,0(non-binary or binary) may be used to initialize the linear feedback shift register at 310. For example, the initialization at 310 may be based on the value of the input pseudo-random sequence 305. Additionally or alternatively, from Figure 2 The pseudo-random sequence Z output by process 200 is w,0 The information bits / symbols may be used as error detection / correction codewords associated with the second pseudo-random sequence generator 315, which may also implement Figure 2 A second pseudo-random sequence generator 315 (eg, implementing process 200 or another process) may output a second pseudo-random sequence 320 , which may be longer than the input pseudo-random sequence 305 .

[0103] Since multi-stage randomization can support an increase in the length of the pseudo-random sequence, the multi-stage randomization process 300 can support a reduction in inter-cell interference or intra-cell interference. In some examples, control signaling can be used to indicate a configuration for multi-stage randomization. The configuration may include whether to enable multi-stage randomization or other parameters of the second pseudo-random sequence generator 315 (e.g., initialization formula, timing information).

[0104] Figure 4 An example of an OCC process 400 that supports the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The OCC process 400 may be performed by Figure 1 The OCC process 400 may be implemented by the network entity 105 and / or UE 115 described herein. For example, the UE 115 may encode information bits (e.g., UE group identifier) ​​into a pseudo-random sequence generated according to the OCC process 400, and the pseudo-random sequence encoding the information bits is sent to the network entity 105 or another UE 115. The OCC process 400 may be used in a MIMO environment where a device (e.g., UE 115 or network entity 105) distinguishes between antenna ports (e.g., a dual-port synchronization signal design). The OCC process 400 may be used to generate orthogonal or pseudo-orthogonal sequences.

[0105] The pseudo-random sequence generator 405 may receive input information bits and generate a pseudo-random sequence that encodes the information bits. The pseudo-random sequence generator 405 may be a single-stage pseudo-random sequence generator (e.g., implementing Figure 2 ) or a multi-stage pseudo-random sequence generator (e.g., implementing Figure 3 The output pseudo-random sequence may have a length L.

[0106] At 410, an OCC may be selected or generated using a subset of information bits input into a pseudo-random generator. The information bits in the Nth subset (e.g., where N>1) may include time information, frequency information, spatial information, a cell identifier, a UE identifier, a group identifier, or any combination thereof. The OCC may be generated based on a closed form formula, such as a Walsh-Hadamard code, a constant amplitude zero autocorrelation waveform sequence, a linear frequency modulation sequence, a lookup table, or any combination thereof. The OCC may have a size Q, which may be an odd or even integer greater than or equal to 2. The sign of the OCC may be binary or non-binary, real or complex.

[0107] After generating an OCC based on a segment of information bits (eg, segment N), the generated OCC may be applied to a pseudo-random sequence Z w A segmented or repeated version of Z. Various options 420 may be used to apply OCC to a pseudo-random sequence. According to a first option 420-a, at 415, the pseudo-random sequence Z is w The pseudo-random sequence is divided into Q non-overlapping segments (e.g., segment 425), and the qth segment of the pseudo-random sequence is multiplied by the qth symbol of the OCC to generate a plurality of orthogonal or pseudo-orthogonal random sequences. For example, the first segment 425 is multiplied by the first symbol of the OCC to generate a first orthogonal or pseudo-orthogonal sequence. At 430, the plurality of orthogonal or pseudo-orthogonal random sequences are multiplexed (e.g., frequency domain multiplexing (FDM), time domain multiplexing (TDM), or spatial domain multiplexing (SDM)) and used to generate and / or transmit one or more reference signals.

[0108] According to the second option 420b, at 415, the pseudo-random sequence Z is repeated. w To generate Q copies (e.g., copy 435), and multiply the qth copy by the qth symbol of the OCC to generate multiple orthogonal or pseudo-orthogonal random sequences. For example, the first copy 435 is multiplied by the first symbol of the OCC to generate a first orthogonal or pseudo-orthogonal sequence. The orthogonal or pseudo-orthogonal sequences can be concatenated to generate a longer sequence of length L*Q.

[0109] According to the third option 420c, Q different random sequences Z W1 , Z W2 , ..., Z WQ Sort by Z W1 , Z W2 , ..., Z WQ , and multiply each by the OCC symbol (e.g., Z wqThe OCC process options 420 may be used in conjunction with the process 200 and the multi-stage randomization process 300 to generate orthogonal sequences, which may further enhance wireless communications.

[0110] Figure 5 An example of a process flow 500 supporting the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The process flow 500 includes a wireless device 505 and a wireless device 510. The wireless devices 505 and 510 may be as described with respect to Figure 1 The process flow 500 may be implemented as described with respect to the example of the UE 115 and / or the network entity 105. Figures 1 to 4 4. The process 200, multi-stage randomization process 300, and OCC process 400 are described in detail. In some examples, some signaling or processes of process flow 500 may occur in a different order than shown. Additionally or alternatively, some additional processes of signaling may occur, or some signaling or processes may not occur.

[0111] At 515, the wireless device 505 may receive control signaling indicating a configuration for generating a pseudo-random sequence from the wireless device 510. The configuration may specify whether the wireless device 505 is to use single-stage randomization or multi-stage randomization, whether the wireless device 505 is to use OCC, and / or pseudo-random sequence generation technique parameters, such as the number of segments or the coding rate.

[0112] At 520, the wireless device 505 may segment the bit sequence of information bits into a plurality of bit groups. The segments of information bits may include multiplexed and / or interleaved bits from a plurality of information bit subsets, each of which may correspond to an information field or symbol (e.g., defined over a finite field). In some examples, the subsets may be zero padded. Zero padding may be performed to define a fixed length for grouping subsets.

[0113] At 525, the wireless device 505 may map each bit group in the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols. At 530, the wireless device may encode the ordered information symbols to generate a plurality of codewords. The encoding may include encoding the information symbols using a (e.g., pre-configured) codebook associated with an error detection code or an error correction code. The codeword may be generated to include information symbols and check symbols in the plurality of ordered information symbols. The check symbol may include a CRC symbol of an error detection code and / or a parity check symbol of an error correction code. For a given code rate or a given codebook size, the codewords of the codebook may have a defined separation distance (e.g., a maximum separation distance). The codeword may be generated using an error correction algorithm such as a Reed-Solomon code or a Bose-Chaudhuri-Hocquenghem code. It is contemplated that other codeword generation algorithms are within the scope of the present disclosure.

[0114] At 535, the wireless device 505 may demap each of the plurality of codewords to generate a plurality of sequences. At 540, the wireless device 505 may multiplex (e.g., concatenate) the plurality of sequences to generate a pseudo-random sequence. The generated pseudo-random sequence may be binary or non-binary.

[0115] At 545, the wireless device 505 may use a multi-stage pseudo-random sequence generator. For example, the wireless device 505 may use the pseudo-random sequence generated at 540 to initialize a second sequence pseudo-random sequence generator. In addition, the pseudo-random sequence generated at 540 may be input into a second pseudo-random sequence generator. In some examples, the second pseudo-random sequence generator is an example of one or more linear feedback shift registers defined on a binary finite field or a non-binary finite field. In other examples, the second pseudo-random sequence generator implements the techniques described at 520 to 540, wherein the pseudo-random sequence (encoded and including information symbols and check symbols) is input into the second pseudo-random sequence generator.

[0116] At 555, the wireless device 505 may apply the OCC to the generated pseudo-random sequence (e.g., output from a single-stage or multi-stage implementation). The application of the OCC may include: generating multiple bit subsets based on ordered information bits, and generating the OCC based on a first subset of the multiple information bit subsets. The pseudo-random sequence may be segmented, replicated, or combined with other pseudo-random sequences. The generated OCC may be applied to a segmented pseudo-random sequence, a replicated pseudo-random sequence, or a grouped pseudo-random sequence to generate multiple orthogonal or pseudo-orthogonal random sequences. For example, the pseudo-random sequence is segmented into multiple pseudo-random symbol subsets, and the pseudo-random symbol subsets are multiplied by the corresponding symbols of the OCC. In another example, the pseudo-random sequence is replicated to generate multiple pseudo-random symbol subsets, and the pseudo-random symbol subsets are multiplied by the corresponding symbols of the OCC. In another example, the pseudo-random sequence is combined with other pseudo-random sequences to generate multiple pseudo-random symbol subsets, and the pseudo-random symbol subsets are multiplied by the corresponding symbols of the OCC. Applying the OCC to the pseudo-random symbol subsets can generate multiple orthogonal or pseudo-orthogonal random sequences. Multiple orthogonal or pseudo-orthogonal random sequences may be used to generate the reference signal sent at 560. In other cases, the generated reference signal is used to correlate with a downlink signal for reception.

[0117] Figure 6 A block diagram 600 of a device 605 supporting generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The device 605 may be an example of aspects of a UE 115 or a network entity 105 as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communication manager 620. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0118] The receiver 610 may provide means for receiving information associated with various information channels (e.g., control channels related to the generation of encoded pseudo-random sequences, data channels, information channels) such as packets, user data, control information, or any combination thereof. The information may be communicated to other components of the device 605. The receiver 610 may utilize a single antenna or a collection of multiple antennas.

[0119] The transmitter 615 may provide a means for transmitting signals generated by other components of the device 605. For example, the transmitter 615 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels related to the generation of encoded pseudo-random sequences, data channels, information channels). In some examples, the transmitter 615 may be co-located with the receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a collection of multiple antennas.

[0120] The communication manager 620, the receiver 610, the transmitter 615, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of the generation of encoded pseudo-random sequences as described herein. For example, the communication manager 620, the receiver 610, the transmitter 615, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.

[0121] In some examples, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof can be implemented in hardware (e.g., in a communication management circuit). The hardware can include a processor, a digital signal processor (DSP), a central processing unit (CPU), a graphics processor unit (GPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof that is configured as or otherwise supports a unit for performing the functions described in the present disclosure. In some examples, the processor and a memory coupled to the processor can be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).

[0122] Additionally or alternatively, in some examples, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software). If implemented in code executed by a processor, the functionality of the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be performed by a general purpose processor, a DSP, a CPU, a GPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a unit for performing the functionality described in the present disclosure).

[0123] In some examples, the communication manager 620 can be configured to perform various operations (e.g., receive, obtain, monitor, output, send) using or otherwise cooperating with the receiver 610, the transmitter 615, or both. For example, the communication manager 620 can receive information from the receiver 610, send information to the transmitter 615, or be integrated in conjunction with the receiver 610, the transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.

[0124] According to the examples disclosed herein, the communication manager 620 can support wireless communication at the wireless device. For example, the communication manager 620 can be configured to or otherwise support a unit for segmenting a bit sequence of information bits into a set of multiple bit groups. The communication manager 620 can be configured to or otherwise support a unit for mapping each bit group in a set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols. The communication manager 620 can be configured to or otherwise support a unit for encoding a set of multiple ordered information symbols to generate a set of multiple codewords. The communication manager 620 can be configured to or otherwise support a unit for demapping each codeword in a set of multiple codewords to generate a set of multiple sequences. The communication manager 620 can be configured to or otherwise support a unit for multiplexing a set of multiple sequences to generate a pseudo-random sequence. The communication manager 620 can be configured to or otherwise support a unit for sending a signal generated based on a pseudo-random sequence.

[0125] Additionally or alternatively, according to examples as disclosed herein, the communication manager 620 may support wireless communications at the wireless device. For example, the communication manager 620 may be configured to or otherwise support a unit for generating a set of multiple bit subsets based on a set of multiple ordered information bits. The communication manager 620 may be configured to or otherwise support a unit for generating an OCC based on a first subset of a set of multiple bit subsets. The communication manager 620 may be configured to or otherwise support a unit for applying the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences. The communication manager 620 may be configured to or otherwise support a unit for generating a reference signal based on a set of multiple orthogonal or pseudo-orthogonal random sequences.

[0126] According to the examples described herein, by including or configuring a communication manager 620, a device 605 (e.g., a processor controlling a receiver 610, a transmitter 615, a communication manager 620, or a combination thereof or otherwise coupled thereto) can support a technique for generating encoded pseudo-random numbers that more efficiently utilizes communication resources by reducing cross-correlation, thereby improving communication efficiency.

[0127] Figure 7 A block diagram 700 of a device 705 that supports generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The device 705 may be an example of aspects of the device 605, UE 115, or network entity 105 as described herein. The device 705 may include a receiver 710, a transmitter 715, and a communication manager 720. The device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0128] The receiver 710 may provide means for receiving information associated with various information channels (e.g., control channels related to the generation of encoded pseudo-random sequences, data channels, information channels) such as packets, user data, control information, or any combination thereof. The information may be communicated to other components of the device 705. The receiver 710 may utilize a single antenna or a collection of multiple antennas.

[0129] The transmitter 715 may provide a means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels related to the generation of encoded pseudo-random sequences, data channels, information channels). In some examples, the transmitter 715 may be co-located with the receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna or a collection of multiple antennas.

[0130] The device 705 or its various components may be examples of means for performing various aspects of the generation of the encoded pseudo-random sequence as described herein. For example, the communication manager 720 may include a bit sequence segmentation component 725, a bit group mapping component 730, an encoder 735, a demapping component 740, a multiplexing component 745, a signal interface 750, a bit subset component 755, an OCC generation component 760, an OCC application component 765, a reference signal component 770, or any combination thereof. The communication manager 720 may be an example of various aspects of the communication manager 620 as described herein. In some examples, the communication manager 720 or its various components may be configured to perform various operations (e.g., receive, obtain, monitor, output, send) using or otherwise cooperating with the receiver 710, the transmitter 715, or both. For example, the communications manager 720 may receive information from the receiver 710, send information to the transmitter 715, or be integrated with the receiver 710, the transmitter 715, or both to obtain information, output information, or perform various other operations as described herein.

[0131] According to the examples disclosed herein, the communication manager 720 can support wireless communication at the wireless device. The bit sequence segmentation component 725 can be configured to or otherwise support a unit for segmenting a bit sequence of information bits into a set of multiple bit groups. The bit group mapping component 730 can be configured to or otherwise support a unit for mapping each bit group in a set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols. The encoder 735 can be configured to or otherwise support a unit for encoding a set of multiple ordered information symbols to generate a set of multiple code words. The demapping component 740 can be configured to or otherwise support a unit for demapping each code word in a set of multiple code words to generate a set of multiple sequences. The multiplexing component 745 can be configured to or otherwise support a unit for multiplexing a set of multiple sequences to generate a pseudo-random sequence. The signal interface 750 can be configured to or otherwise support a unit for sending a signal generated based on a pseudo-random sequence.

[0132] Additionally or alternatively, according to examples as disclosed herein, the communication manager 720 may support wireless communications at the wireless device. The bit subset component 755 may be configured to or otherwise support a unit for generating a set of multiple bit subsets based on a set of multiple ordered information bits. The OCC generation component 760 may be configured to or otherwise support a unit for generating an OCC based on a first subset of a set of multiple bit subsets. The OCC application component 765 may be configured to or otherwise support a unit for applying the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences. The reference signal component 770 may be configured to or otherwise support a unit for generating a reference signal based on a set of multiple orthogonal or pseudo-orthogonal random sequences.

[0133] Figure 8A block diagram 800 of a communication manager 820 supporting generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The communication manager 820 may be an example of aspects of the communication manager 620, the communication manager 720, or both as described herein. The communication manager 820 or its various components may be examples of units for performing various aspects of generation of an encoded pseudo-random sequence as described herein. For example, the communication manager 820 may include a bit sequence segmentation component 825, a bit group mapping component 830, an encoder 835, a demapping component 840, a multiplexing component 845, a signal interface 850, a bit subset component 855, an OCC generation component 860, an OCC application component 865, a reference signal component 870, a control signaling interface 875, a zero padding component 880, an information bit processing component 885, a second pseudo-random sequence component 890, an OCC generation component 895, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses), which may include communication within a protocol layer of a protocol stack, communication associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with the network entity 105, between devices, components, or virtualized components associated with the network entity 105), or any combination thereof.

[0134] According to the examples disclosed herein, the communication manager 820 can support wireless communication at the wireless device. The bit sequence segmentation component 825 can be configured to or otherwise support a unit for segmenting a bit sequence of information bits into a set of multiple bit groups. The bit group mapping component 830 can be configured to or otherwise support a unit for mapping each bit group in a set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols. The encoder 835 can be configured to or otherwise support a unit for encoding a set of multiple ordered information symbols to generate a set of multiple code words. The demapping component 840 can be configured to or otherwise support a unit for demapping each code word in a set of multiple code words to generate a set of multiple sequences. The multiplexing component 845 can be configured to or otherwise support a unit for multiplexing a set of multiple sequences to generate a pseudo-random sequence. The signal interface 850 can be configured to or otherwise support a unit for sending a signal generated based on a pseudo-random sequence.

[0135] In some examples, the control signaling interface 875 can be configured as or otherwise support means for receiving control signaling instructing the wireless device to use single-stage randomization or multi-stage randomization, wherein the pseudo-random sequence is generated based on the multi-stage randomization.

[0136] In some examples, the control signaling interface 875 can be configured or otherwise support means for receiving control signaling that instructs the wireless device to use OCC to generate a set of multiple orthogonal sequences based on a pseudo-random sequence, wherein the signal is generated based on the OCC.

[0137] In some examples, control signaling interface 875 may be configured or otherwise support means for receiving control signaling indicating a configuration for generating a pseudo-random sequence, wherein the pseudo-random sequence is generated based on the configuration.

[0138] In some examples, to support encoding a set of multiple ordered information symbols, the encoder 835 may be configured or otherwise support a unit for encoding a set of multiple ordered information symbols using a codebook associated with an error detection code or an error correction code. In some examples, to support encoding a set of multiple ordered information symbols, the encoder 835 may be configured or otherwise support a unit for generating a codeword, the codeword comprising an information symbol in the set of multiple ordered information symbols and a set of multiple check symbols, wherein the check symbol comprises a CRC symbol of an error detection code, a parity check symbol of an error correction code, or a combination thereof.

[0139] In some examples, for a given code rate or a given codebook size, the codewords in the codebook have a defined separation distance.

[0140] In some examples, the codewords are generated using an error detection coding algorithm, which is a Reed-Solomon code or a Bose-Chaudhuri-Hocquenghem code.

[0141] In some examples, the zero padding component 880 can be configured as or otherwise support a unit for zero padding each subset of information bits in a set of multiple subsets of information bits, each subset of information bits corresponding to an information symbol defined on a finite field, wherein the zero padding produces a bit sequence of information bits.

[0142] In some examples, the information bit processing component 885 can be configured as or otherwise support a unit for processing a set of multiple information bit subsets, each information bit subset corresponding to an information symbol, the processing including: multiplexing, interleaving, or both, the set of multiple information bit subsets to produce a set of multiple ordered information symbols.

[0143] In some examples, the second pseudo-random sequence component 890 can be configured as or otherwise support means for initializing a second pseudo-random sequence generator based on a pseudo-random sequence, wherein elements of the pseudo-random sequence are binary or non-binary.

[0144] In some examples, the second pseudo-random sequence generator includes one or more linear feedback shift registers. In some examples, the operation of the one or more linear feedback shift registers is defined on a binary finite field or a non-binary finite field.

[0145] In some examples, to support initialization of a second pseudo-random sequence generator, the second pseudo-random sequence component 890 may be configured as or otherwise support a unit for using a pseudo-random sequence that is encoded and includes a set of multiple information symbols and check symbols as an input to the initialized second pseudo-random sequence generator.

[0146] In some examples, the bit subset component 855 can be configured as or otherwise support means for generating a set of multiple bit subsets based on a set of multiple ordered information bits. In some examples, the OCC generation component 895 can be configured as or otherwise support means for generating an OCC based on a first subset of a set of multiple bit subsets. In some examples, the OCC application component 865 can be configured as or otherwise support means for applying the OCC to a pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences. In some examples, the reference signal component 870 can be configured as or otherwise support means for generating a reference signal based on a set of multiple orthogonal or pseudo-orthogonal random sequences.

[0147] In some examples, the multiplexing component 845 can be configured as or otherwise support a unit for multiplexing a set of multiple orthogonal or pseudo-orthogonal random sequences to generate a multiplexed signal, wherein the reference signal is generated based on the multiplexed set of multiple orthogonal or pseudo-orthogonal random sequences.

[0148] In some examples, to support generating OCCs, OCC generation component 860 may be configured as or otherwise support means for generating OCCs using a closed-form formula including a Walsh-Hadamard code, a constant amplitude zero autocorrelation waveform sequence, a linear frequency modulation sequence, or any combination thereof.

[0149] In some examples, to support application of OCC, the OCC application component 865 may be configured as or otherwise support a unit for multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of multiple orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are segmented to generate the set of multiple pseudo-random symbol subsets.

[0150] In some examples, to support application of OCC, the OCC application component 865 may be configured as or otherwise support a unit for multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of multiple orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequence is repeated to generate the set of multiple pseudo-random symbol subsets.

[0151] In some examples, to support application of OCC, the OCC application component 865 may be configured as or otherwise support a unit for multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of multiple orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are concatenated with one or more second pseudo-random sequences to generate the set of multiple pseudo-random symbol subsets.

[0152] Additionally or alternatively, according to examples as disclosed herein, the communication manager 820 may support wireless communications at the wireless device. The bit subset component 855 may be configured to or otherwise support a unit for generating a set of multiple bit subsets based on a set of multiple ordered information bits. The OCC generation component 860 may be configured to or otherwise support a unit for generating an OCC based on a first subset of a set of multiple bit subsets. The OCC application component 865 may be configured to or otherwise support a unit for applying the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences. The reference signal component 870 may be configured to or otherwise support a unit for generating a reference signal based on a set of multiple orthogonal or pseudo-orthogonal random sequences.

[0153] In some examples, the multiplexing component 845 can be configured as or otherwise support a unit for multiplexing a set of multiple orthogonal or pseudo-orthogonal random sequences to generate a multiplexed signal, wherein the reference signal is generated based on the multiplexed set of multiple orthogonal or pseudo-orthogonal random sequences.

[0154] In some examples, to support generating OCCs, the OCC generation component 860 may be configured as or otherwise support a unit for generating OCCs using a closed-form formula including a Walsh-Hadamard code, or a constant amplitude zero autocorrelation waveform sequence, or a linear frequency modulation sequence, or any combination thereof.

[0155] In some examples, to support applying OCC, the OCC application component 865 can be configured as or otherwise support a unit for multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of multiple orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is segmented to generate the set of multiple pseudo-random symbol subsets.

[0156] In some examples, to support application of OCC, the OCC application component 865 may be configured as or otherwise support a unit for multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of multiple orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is repeated to generate the set of multiple pseudo-random symbol subsets.

[0157] In some examples, to support application of OCC, the OCC application component 865 may be configured as or otherwise support a unit for multiplying each pseudo-random symbol subset in a set of multiple pseudo-random symbol subsets by a corresponding symbol of the OCC to generate a set of multiple orthogonal or pseudo-orthogonal random sequences, wherein an input pseudo-random sequence is concatenated with one or more second pseudo-random sequences to generate the set of multiple pseudo-random symbol subsets.

[0158] In some examples, the bit sequence segmentation component 825 may be configured to or otherwise support a unit for segmenting the bit sequence of information bits into a set of multiple bit groups. In some examples, the bit group mapping component 830 may be configured to or otherwise support a unit for mapping each bit group in the set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols. In some examples, the encoder 835 may be configured to or otherwise support a unit for encoding a set of multiple ordered information symbols to generate a set of multiple code words. In some examples, the demapping component 840 may be configured to or otherwise support a unit for demapping each code word in the set of multiple code words to generate a set of multiple sequences. In some examples, the multiplexing component 845 may be configured to or otherwise support a unit for multiplexing a set of multiple sequences to generate a pseudo-random sequence.

[0159] In some examples, the control signaling interface 875 can be configured as or otherwise support a means for receiving control signaling indicating a configuration for generating a set of multiple orthogonal or pseudo-orthogonal random sequences, wherein the set of multiple orthogonal or pseudo-orthogonal random sequences is generated based on the configuration.

[0160] Fig. 9A schematic diagram of a system 900 including a device 905 that supports the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The device 905 may be an example of a device 605, a device 705, or a UE 115 as described herein or a component thereof. The device 905 may communicate (e.g., wirelessly) with one or more network entities 105, one or more UEs 115, or any combination thereof. The device 905 may include components for two-way voice and data communications, including components for sending and receiving communications, such as a communication manager 920, an input / output (I / O) controller 910, a transceiver 915, an antenna 925, a memory 930, a code 935, and a processor 940. These components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 945).

[0161] I / O controller 910 can manage input and output signals for device 905. I / O controller 910 can also manage peripheral devices that are not integrated into device 905. In some cases, I / O controller 910 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 910 can utilize a computer such as a , or another known operating system. Additionally or alternatively, I / O controller 910 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 910 may be implemented as part of a processor, such as processor 940. In some cases, a user may interact with device 905 via I / O controller 910 or via hardware components controlled by I / O controller 910.

[0162] In some cases, the device 905 may include a single antenna 925. However, in some other cases, the device 905 may have more than one antenna 925, which may be able to send or receive multiple wireless transmissions simultaneously. The transceiver 915 may communicate bidirectionally via one or more antennas 925, wired or wireless links as described herein. For example, the transceiver 915 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 915 may also include a modem for modulating packets, providing the modulated packets to one or more antennas 925 for transmission, and demodulating packets received from one or more antennas 925. The transceiver 915, or the transceiver 915 and one or more antennas 925 may be examples of transmitters 615, transmitters 715, receivers 610, receivers 710, or any combination thereof or components thereof as described herein.

[0163] The memory 930 may include random access memory (RAM) and read-only memory (ROM). The memory 930 may store computer-readable, computer-executable code 935, which includes instructions that, when executed by the processor 940, cause the device 905 to perform various functions described herein. The code 935 may be stored in a non-temporary computer-readable medium (such as system memory or another type of memory). In some cases, the code 935 may not be directly executable by the processor 940, but may cause the computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, in addition to this, the memory 930 may also include a basic I / O system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0164] The processor 940 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a GPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 940 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 940. The processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., a memory 930) so that the device 905 performs various functions (e.g., functions or tasks that support the generation of an encoded pseudo-random sequence). For example, the device 905 or a component of the device 905 may include a processor 940 and a memory 930 coupled to or coupled to the processor 940, and the processor 940 and the memory 930 are configured to perform various functions described herein.

[0165] According to the examples disclosed herein, the communication manager 920 can support wireless communication at the wireless device. For example, the communication manager 920 can be configured to or otherwise support a unit for segmenting a bit sequence of information bits into a set of multiple bit groups. The communication manager 920 can be configured to or otherwise support a unit for mapping each bit group in a set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols. The communication manager 920 can be configured to or otherwise support a unit for encoding a set of multiple ordered information symbols to generate a set of multiple codewords. The communication manager 920 can be configured to or otherwise support a unit for demapping each codeword in a set of multiple codewords to generate a set of multiple sequences. The communication manager 920 can be configured to or otherwise support a unit for multiplexing a set of multiple sequences to generate a pseudo-random sequence. The communication manager 920 can be configured to or otherwise support a unit for sending a signal generated based on a pseudo-random sequence.

[0166] Additionally or alternatively, according to examples as disclosed herein, the communication manager 920 may support wireless communications at the wireless device. For example, the communication manager 920 may be configured to or otherwise support a unit for generating a set of multiple bit subsets based on a set of multiple ordered information bits. The communication manager 920 may be configured to or otherwise support a unit for generating an OCC based on a first subset of a set of multiple bit subsets. The communication manager 920 may be configured to or otherwise support a unit for applying the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences. The communication manager 920 may be configured to or otherwise support a unit for generating a reference signal based on a set of multiple orthogonal or pseudo-orthogonal random sequences.

[0167] According to examples as described herein, by including or configuring the communication manager 920, the device 905 can support techniques for coded pseudo-random number generation that result in more efficient utilization of communication resources by reducing cross-correlation, thereby improving communication efficiency and reducing inter-cell or intra-cell interference.

[0168] In some examples, the communication manager 920 can be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise cooperating with the transceiver 915, one or more antennas 925, or any combination thereof. Although the communication manager 920 is shown as a separate component, in some examples, one or more functions described with reference to the communication manager 920 can be supported or performed by the processor 940, the memory 930, the code 935, or any combination thereof. For example, the code 935 may include instructions for the processor 940 to cause the device 905 to perform various aspects of the generation of the encoded pseudo-random sequence as described herein, or the processor 940 and the memory 930 may be otherwise configured to perform or support such operations.

[0169] Fig.10 A schematic diagram of a system 1000 including a device 1005 that supports the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The device 1005 may be an example of a device 605, a device 705, or a network entity 105 as described herein or a component thereof. The device 1005 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof, which may include communication through one or more wired interfaces, through one or more wireless interfaces, or any combination thereof. The device 1005 may include components that support output and acquisition of communications, such as a communication manager 1020, a transceiver 1010, an antenna 1015, a memory 1025, a code 1030, and a processor 1035. These components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1040).

[0170] As described herein, the transceiver 1010 may support bidirectional communication via a wired link, a wireless link, or both. In some examples, the transceiver 1010 may include a wired transceiver and may communicate bidirectionally with another wired transceiver. Additionally or alternatively, in some examples, the transceiver 1010 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1005 may include one or more antennas 1015, which may be capable of sending or receiving wireless transmissions (e.g., concurrently). The transceiver 1010 may also include a modem for modulating a signal, providing a modulated signal for transmission (e.g., via one or more antennas 1015, via a wired transmitter), receiving a modulated signal (e.g., from one or more antennas 1015, from a wired receiver), and demodulating a signal. In some implementations, the transceiver 1010 may include one or more interfaces, such as one or more interfaces coupled to one or more antennas 1015 configured to support various receiving or obtaining operations, or one or more interfaces coupled to one or more antennas 1015 configured to support various sending or output operations, or a combination thereof. In some implementations, the transceiver 1010 may include or be configured to be coupled to one or more processors or memory components, which are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other output, or any combination thereof. In some implementations, the transceiver 1010, or the transceiver 1010 and one or more antennas 1015, or the transceiver 1010 and one or more antennas 1015 and one or more processors or memory components (e.g., processor 1035, or memory 1025, or both) may be included in a chip or chip component installed in the device 1005. The transceiver 1010, or the transceiver 1010 and one or more antennas 1015 or a wired interface (where applicable) may be an example of a transmitter 615, a transmitter 715, a receiver 610, a receiver 710, or any combination thereof or components thereof as described herein. In some examples, the transceiver may be operable to support communication via one or more communication links (e.g., communication link 125, backhaul communication link 120, mid-range communication link 162, fronthaul communication link 168).

[0171] Memory 1025 may include RAM and ROM. Memory 1025 may store computer-readable, computer-executable code 1030, which includes instructions that, when executed by processor 1035, cause device 1005 to perform various functions described herein. Code 1030 may be stored in a non-transitory computer-readable medium (such as system memory or other types of memory). In some cases, code 1030 may not be directly executable by processor 1035, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, in addition to this, memory 1025 may also include BIOS, which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0172] The processor 1035 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, an ASIC, a CPU, a GPU, an FPGA, a microcontroller, a programmable logic device, a discrete gate or transistor logic, a discrete hardware component, or any combination thereof). In some cases, the processor 1035 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1035. The processor 1035 may be configured to execute computer-readable instructions stored in a memory (e.g., a memory 1025) so that the device 1005 performs various functions (e.g., functions or tasks that support the generation of an encoded pseudo-random sequence). For example, the device 1005 or a component of the device 1005 may include a processor 1035 and a memory 1025 coupled to the processor 1035, and the processor 1035 and the memory 1025 are configured to perform various functions described herein. Processor 1035 can be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software, such as an operating system, a virtual machine, or a container instance), which can host functions (e.g., by executing code 1030) to perform functions of device 1005. Processor 1035 can be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in device 1005 (e.g., in memory 1025). In some implementations, processor 1035 can be a component of a processing system. A processing system can generally refer to a system or a series of machines or components that receive inputs and process inputs to produce an output set (which can be passed to, for example, other systems or components of device 1005). For example, a processing system of device 1005 can refer to a system including various other components or subcomponents of device 1005 (such as processor 1035, or transceiver 1010, or communication manager 1020, or other components or combinations of components of device 1005). The processing system of device 1005 can be docked with other components of device 1005, and can process information (such as input or signal) received from other components or output information to other components. For example, the chip or modem of device 1005 may include a processing system and an interface to output information, or obtain information, or both. The interface may be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information. In some implementations, the first interface may refer to an interface between the processing system of the chip or modem and a transmitter, so that device 1005 can send information output from the chip or modem. In some implementations, the second interface may refer to an interface between the processing system of the chip or modem and a receiver, so that device 1005 can obtain information or signal input, and the information can be passed to the processing system.One of ordinary skill in the art will readily recognize that the first interface may also obtain information or signal input, and the second interface may also output information or signal output.

[0173] In some examples, bus 1040 may support communications of protocol layers of a protocol stack (e.g., within a protocol layer). In some examples, bus 1040 may support communications associated with logical channels of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within components of device 1005 or communications between different components of device 1005 that may be co-located or located in different locations (e.g., where device 1005 may refer to a system in which one or more of communication manager 1020, transceiver 1010, memory 1025, code 1030, and processor 1035 may be located in one of the different components or divided between the different components).

[0174] In some examples, the communication manager 1020 can manage aspects of communications with the core network 130 (e.g., via one or more wired or wireless backhaul links). For example, the communication manager 1020 can manage the transmission of data communications for client devices, such as one or more UEs 115. In some examples, the communication manager 1020 can manage communications with other network entities 105 and can include a controller or scheduler for cooperating with other network entities 105 to control communications with the UEs 115. In some examples, the communication manager 1020 can support an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between network entities 105.

[0175] According to the examples disclosed herein, the communication manager 1020 can support wireless communication at the wireless device. For example, the communication manager 1020 can be configured to or otherwise support a unit for segmenting a bit sequence of information bits into a set of multiple bit groups. The communication manager 1020 can be configured to or otherwise support a unit for mapping each bit group in a set of multiple bit groups to a corresponding symbol to generate a set of multiple ordered information symbols. The communication manager 1020 can be configured to or otherwise support a unit for encoding a set of multiple ordered information symbols to generate a set of multiple codewords. The communication manager 1020 can be configured to or otherwise support a unit for demapping each codeword in a set of multiple codewords to generate a set of multiple sequences. The communication manager 1020 can be configured to or otherwise support a unit for multiplexing a set of multiple sequences to generate a pseudo-random sequence. The communication manager 1020 can be configured to or otherwise support a unit for sending a signal generated based on a pseudo-random sequence.

[0176] Additionally or alternatively, according to examples as disclosed herein, the communication manager 1020 may support wireless communications at a wireless device. For example, the communication manager 1020 may be configured to or otherwise support a unit for generating a set of multiple bit subsets based on a set of multiple ordered information bits. The communication manager 1020 may be configured to or otherwise support a unit for generating an OCC based on a first subset of a set of multiple bit subsets. The communication manager 1020 may be configured to or otherwise support a unit for applying the OCC to an input pseudo-random sequence to generate a set of multiple orthogonal or pseudo-orthogonal random sequences. The communication manager 1020 may be configured to or otherwise support a unit for generating a reference signal based on a set of multiple orthogonal or pseudo-orthogonal random sequences.

[0177] According to examples as described herein, by including or configuring the communication manager 1020, the device 1005 can support a technique for coded pseudo-random number generation that more efficiently utilizes communication resources by reducing cross-correlation, thereby improving communication efficiency.

[0178] In some examples, the communication manager 1020 can be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or in cooperation with the transceiver 1010, one or more antennas 1015 (e.g., where applicable), or any combination thereof. Although the communication manager 1020 is shown as a separate component, in some examples, one or more functions described with reference to the communication manager 1020 can be supported or performed by the processor 1035, the memory 1025, the code 1030, the transceiver 1010, or any combination thereof. For example, the code 1030 may include instructions for the processor 1035 to cause the device 1005 to perform various aspects of the generation of the encoded pseudo-random sequence as described herein, or the processor 1035 and the memory 1025 may be otherwise configured to perform or support such operations.

[0179] Fig.11 A flow chart illustrating a method 1100 for supporting the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The operations of the method 1100 may be implemented by a UE or a network entity or a component thereof as described herein. For example, the operations of the method 1100 may be implemented by a UE or a network entity or a component thereof as described herein. Figures 1 to 10 The UE 115 or network entity described may be performed. In some examples, the UE or network entity may execute an instruction set to control a functional unit of the UE or network entity to perform the described functions. Additionally or alternatively, the UE or network entity may use dedicated hardware to perform various aspects of the described functions.

[0180] At 1105, the method may include: segmenting the bit sequence of information bits into a plurality of bit groups. The operations of 1105 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1105 may be described by referring to Figure 8 The described bit sequence segmentation component 825 is performed.

[0181] At 1110, the method may include mapping each bit group in the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols. The operations of 1110 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1110 may be performed as described with reference to Figure 8 The described bit group mapping component 830 is performed.

[0182] At 1115, the method may include encoding the plurality of ordered information symbols to generate a plurality of codewords. The operations of 1115 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1115 may be performed as described with reference to Figure 8 The encoder 835 described is executed.

[0183] At 1120, the method may include: demapping each of the plurality of codewords to generate a plurality of sequences. The operations of 1120 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1120 may be as described with reference to Figure 8 The demapping component 840 described above is performed.

[0184] At 1125, the method may include: multiplexing a plurality of sequences to generate a pseudo-random sequence. The operations of 1125 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1125 may be described by referring to Figure 8 The described multiplexing component 845 is executed.

[0185] At 1130, the method may include sending a signal generated at least in part based on a pseudo-random sequence. The operations of 1130 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1130 may be described by referring to Figure 8 The signal interface 850 described above is implemented.

[0186] Fig.12 A flow chart illustrating a method 1200 for supporting the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The operations of the method 1200 may be implemented by a UE or a network entity or a component thereof as described herein. For example, the operations of the method 1200 may be implemented by a UE or a network entity or a component thereof as described herein. Figures 1 to 10The UE 115 or network entity described may be performed. In some examples, the UE or network entity may execute an instruction set to control a functional unit of the UE or network entity to perform the described functions. Additionally or alternatively, the UE or network entity may use dedicated hardware to perform various aspects of the described functions.

[0187] At 1205, the method may include: segmenting the bit sequence of information bits into a plurality of bit groups. The operations of 1205 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1205 may be performed as described with reference to Figure 8 The described bit sequence segmentation component 825 is performed.

[0188] At 1210, the method may include mapping each bit group in the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols. The operations of 1210 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1210 may be performed as described with reference to Figure 8 The described bit group mapping component 830 is performed.

[0189] At 1215, the method may include encoding the plurality of ordered information symbols to generate a plurality of codewords. The operations of 1215 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1215 may be performed as described with reference to Figure 8 The encoder 835 described is executed.

[0190] At 1220, the method may include encoding a plurality of ordered information symbols using a codebook associated with an error detection code or an error correction code. The operations of 1220 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1220 may be performed as described with reference to Figure 8 The encoder 835 described is executed.

[0191] At 1225, the method may include: generating a codeword, the codeword including an information symbol in a plurality of ordered information symbols and a plurality of check symbols, wherein the check symbols include cyclic redundancy check symbols of an error detection code, parity check symbols of an error correction code, or a combination thereof. The operations of 1225 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1225 may be performed as described with reference to Figure 8 The encoder 835 described is executed.

[0192] At 1230, the method may include: demapping each of the plurality of codewords to generate a plurality of sequences. The operations of 1230 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1230 may be as described with reference to Figure 8 The demapping component 840 described above is performed.

[0193] At 1235, the method may include: multiplexing a plurality of sequences to generate a pseudo-random sequence. The operations of 1235 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1235 may be described by referring to Figure 8 The described multiplexing component 845 is executed.

[0194] At 1240, the method may include initializing a second pseudo-random sequence generator based at least in part on the pseudo-random sequence, wherein the elements of the pseudo-random sequence are binary or non-binary. The operations of 1240 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1240 may be described by reference to Figure 8 The second pseudo-random sequence component 890 described is executed.

[0195] At 1245, the method may include sending a signal generated at least in part based on a pseudo-random sequence. The operations of 1245 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1245 may be described with reference to Figure 8 The signal interface 850 described above is implemented.

[0196] Fig.13 A flow chart illustrating a method 1300 for supporting the generation of an encoded pseudo-random sequence according to one or more aspects of the present disclosure is shown. The operations of the method 1300 may be implemented by a UE or a network entity or a component thereof as described herein. For example, the operations of the method 1300 may be implemented by a UE or a network entity or a component thereof as described herein. Figures 1 to 10 The UE 115 or network entity described may be performed. In some examples, the UE or network entity may execute an instruction set to control a functional unit of the UE or network entity to perform the described functions. Additionally or alternatively, the UE or network entity may use dedicated hardware to perform various aspects of the described functions.

[0197] At 1305, the method may include generating a plurality of bit subsets based at least in part on a plurality of ordered information bits. The operations of 1305 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1305 may be performed as described with reference to Figure 8 The described bit subset component 855 is performed.

[0198] At 1310, the method may include generating an orthogonal cover code based at least in part on a first subset of the plurality of bit subsets. The operations of 1310 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1310 may be performed as described with reference to Figure 8 The described OCC generation component 860 is performed.

[0199] At 1315, the method may include applying an orthogonal cover code to an input pseudo-random sequence to generate a plurality of orthogonal or pseudo-orthogonal random sequences. The operations of 1315 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1315 may be described by reference to Figure 8 The described OCC application component 865 is executed.

[0200] At 1320, the method may include generating a reference signal based at least in part on a plurality of orthogonal or pseudo-orthogonal random sequences. The operations of 1320 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1320 may be performed by reference to Figure 8 The reference signal component 870 is described to perform.

[0201] The following provides a summary of various aspects of the disclosure:

[0202] Aspect 1: A method for wireless communication at a wireless device, comprising: segmenting a bit sequence of information bits into multiple bit groups; mapping each of the multiple bit groups to a corresponding symbol to generate multiple ordered information symbols; encoding the multiple ordered information symbols to generate multiple codewords; demapping each of the multiple codewords to generate multiple sequences; multiplexing the multiple sequences to generate a pseudo-random sequence; and sending a signal generated at least in part based on the pseudo-random sequence.

[0203] Aspect 2: The method according to aspect 1 further includes: receiving control signaling indicating that the wireless device will use single-stage randomization or multi-stage randomization, wherein the pseudo-random sequence is generated at least in part based on multi-stage randomization.

[0204] Aspect 3: The method according to any one of Aspects 1 to 2 also includes: receiving control signaling, the control signaling indicating that the wireless device will use an orthogonal cover code to generate multiple orthogonal sequences at least partially based on the pseudo-random sequence, wherein the signal is generated at least partially based on the orthogonal cover code.

[0205] Aspect 4: The method according to any one of Aspects 1 to 3 further includes: receiving control signaling indicating a configuration for generating the pseudo-random sequence, wherein the pseudo-random sequence is generated at least in part based on the configuration.

[0206] Aspect 5: A method according to any one of Aspects 1 to 4, wherein encoding the multiple ordered information symbols comprises: encoding the multiple ordered information symbols using a codebook associated with an error detection code or an error correction code; and generating a codeword, the codeword comprising an information symbol in the multiple ordered information symbols and a plurality of check symbols, wherein the check symbol comprises a cyclic redundancy check symbol of the error detection code, a parity check symbol of the error correction code, or a combination thereof.

[0207] Aspect 6: The method according to aspect 5, wherein for a given code rate or a given codebook size, the codewords in the codebook have a defined separation distance.

[0208] Aspect 7: The method according to any one of aspects 5 to 6, wherein the codeword is generated using an error detection coding algorithm, and the error detection coding algorithm is a Reed-Solomon code or a Bose-Chaudhuri-Hocquenghem code.

[0209] Aspect 8: The method according to any one of Aspects 1 to 7 further includes: performing zero padding on each of a plurality of information bit subsets, each information bit subset corresponding to an information symbol defined on a finite field, wherein the zero padding generates the bit sequence of information bits.

[0210] Aspect 9: The method according to any one of Aspects 1 to 8 further includes: processing multiple information bit subsets, each information bit subset corresponding to an information symbol, and the processing includes: multiplexing, interleaving, or both, the multiple information bit subsets to generate the multiple ordered information symbols.

[0211] Aspect 10: The method according to any one of Aspects 1 to 9 further includes: initializing a second pseudo-random sequence generator based at least in part on the pseudo-random sequence, wherein the elements of the pseudo-random sequence are binary or non-binary.

[0212] Aspect 11: The method according to Aspect 10, wherein the second pseudo-random sequence generator comprises one or more linear feedback shift registers, and the operation of the one or more linear feedback shift registers is defined on a binary finite field or a non-binary finite field.

[0213] Aspect 12: The method according to Aspect 10, wherein initializing the second pseudo-random sequence generator comprises: using the pseudo-random sequence that is encoded and includes multiple information symbols and check symbols as an input of the initialized second pseudo-random sequence generator.

[0214] Aspect 13: The method according to any one of Aspects 1 to 12 further includes: generating multiple bit subsets based at least in part on multiple ordered information bits; generating an orthogonal cover code based at least in part on a first subset of the multiple bit subsets; applying the orthogonal cover code to the pseudo-random sequence to generate multiple orthogonal or pseudo-orthogonal random sequences; and generating a reference signal based at least in part on the multiple orthogonal or pseudo-orthogonal random sequences.

[0215] Aspect 14: The method according to Aspect 13 further includes: multiplexing the multiple orthogonal or pseudo-orthogonal random sequences to generate a multiplexed signal, wherein the reference signal is generated at least in part based on the multiplexed multiple orthogonal or pseudo-orthogonal random sequences.

[0216] Aspect 15: A method according to any one of Aspects 13 to 14, wherein generating the orthogonal cover code includes: using a closed-form formula to generate the orthogonal cover code, the closed-form formula including Walsh-Hadamard code, a constant amplitude zero autocorrelation waveform sequence, a linear frequency modulation sequence, or any combination thereof.

[0217] Aspect 16: A method according to any one of Aspects 13 to 15, wherein applying the orthogonal cover code comprises: multiplying each pseudo-random symbol subset of a plurality of pseudo-random symbol subsets by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequence is segmented to generate the plurality of pseudo-random symbol subsets.

[0218] Aspect 17: A method according to any one of Aspects 13 to 15, wherein applying the orthogonal cover code comprises: multiplying each pseudo-random symbol subset of a plurality of pseudo-random symbol subsets by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequence is repeated to generate the plurality of pseudo-random symbol subsets.

[0219] Aspect 18: A method according to any one of Aspects 13 to 15, wherein applying the orthogonal cover code comprises: multiplying each pseudo-random symbol subset of a plurality of pseudo-random symbol subsets by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequence is concatenated with one or more second pseudo-random sequences to generate the plurality of pseudo-random symbol subsets.

[0220] Aspect 19: A method for wireless communication at a wireless device, comprising: generating multiple bit subsets based at least in part on multiple ordered information bits; generating an orthogonal cover code based at least in part on a first subset of the multiple bit subsets; applying the orthogonal cover code to an input pseudo-random sequence to generate multiple orthogonal or pseudo-orthogonal random sequences; and generating a reference signal based at least in part on the multiple orthogonal or pseudo-orthogonal random sequences.

[0221] Aspect 20: The method according to Aspect 19 further includes: multiplexing the multiple orthogonal or pseudo-orthogonal random sequences to generate a multiplexed signal, wherein the reference signal is generated at least in part based on the multiplexed multiple orthogonal or pseudo-orthogonal random sequences.

[0222] Aspect 21: A method according to any one of Aspects 19 to 20, wherein generating the orthogonal cover code includes: using a closed-form formula to generate the orthogonal cover code, the closed-form formula is a Walsh-Hadamard code, or a constant amplitude zero autocorrelation waveform sequence, or a linear frequency modulation sequence, or any combination thereof.

[0223] Aspect 22: A method according to any one of Aspects 19 to 21, wherein applying the orthogonal cover code comprises: multiplying each of a plurality of pseudo-random symbol subsets by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is segmented to generate the plurality of pseudo-random symbol subsets.

[0224] Aspect 23: A method according to any one of Aspects 19 to 21, wherein applying the orthogonal cover code comprises: multiplying each pseudo-random symbol subset of a plurality of pseudo-random symbol subsets by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is repeated to generate the plurality of pseudo-random symbol subsets.

[0225] Aspect 24: A method according to any one of Aspects 19 to 21, wherein applying the orthogonal cover code comprises: multiplying each pseudo-random symbol subset of a plurality of pseudo-random symbol subsets by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is concatenated with one or more second pseudo-random sequences to generate the plurality of pseudo-random symbol subsets.

[0226] Aspect 25: The method according to any one of Aspects 19 to 24 further includes: segmenting a bit sequence of information bits into multiple bit groups; mapping each bit group in the multiple bit groups to a corresponding symbol to generate multiple ordered information symbols; encoding the multiple ordered information symbols to generate multiple codewords; demapping each codeword in the multiple codewords to generate multiple sequences; and multiplexing the multiple sequences to generate a pseudo-random sequence including the multiple ordered information symbols.

[0227] Aspect 26: The method according to any one of Aspects 19 to 25 further includes: receiving control signaling indicating a configuration for generating the multiple orthogonal or pseudo-orthogonal random sequences, wherein the multiple orthogonal or pseudo-orthogonal random sequences are generated at least in part based on the configuration.

[0228] Aspect 27: An apparatus for wireless communication at a wireless device, comprising: a processor; and a memory coupled to the processor, the memory storing instructions, the instructions being used by the processor to cause the wireless device to perform a method according to any one of Aspects 1 to 18.

[0229] Aspect 28: An apparatus for wireless communication at a wireless device, comprising at least one unit for performing the method according to any one of aspects 1 to 18.

[0230] Aspect 29: A non-transitory computer-readable medium storing code for wireless communication at a wireless device, the code comprising instructions for a processor to perform the method according to any one of aspects 1 to 18.

[0231] Aspect 30: An apparatus for wireless communication at a wireless device, comprising: a processor; and a memory coupled to the processor, the memory storing instructions, the instructions being used by the processor to cause the wireless device to perform a method according to any one of Aspects 19 to 26.

[0232] Aspect 31: An apparatus for wireless communication at a wireless device, comprising at least one unit for performing the method according to any one of aspects 19 to 26.

[0233] Aspect 32: A non-transitory computer-readable medium storing code for wireless communication at a wireless device, the code comprising instructions for a processor to perform the method according to any one of aspects 19 to 26.

[0234] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0235] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0236] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0237] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, DSP, ASIC, CPU, GPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration).

[0238] The functions described herein can be implemented using hardware, software executed by a processor, or any combination thereof. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes, or functions. If implemented using software executed by a processor, the functions can be stored or sent using one or more instructions or codes of a computer-readable medium. Other examples and implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software, hardware, hard wiring, or any combination of these items executed by a processor. The features that implement the functions can also be physically located at various locations, including being distributed so that the various parts of the functions in the functions are implemented at different physical locations.

[0239] Computer readable medium includes both non-transitory computer storage medium and communication medium, and communication medium includes any medium that promotes the transmission of computer program from one place to another place.Non-transitory storage medium can be any available medium that can be accessed by general-purpose computer or special-purpose computer.By way of example and not limitation, non-transitory computer readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, phase change memory, compact disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage device, or can be used for carrying or storing desired program code unit and can be accessed by general-purpose or special-purpose computer or general-purpose or special-purpose processor in the form of instruction or data structure Any other non-transitory medium.In addition, any connection is appropriately referred to as computer readable medium.For example, if software is to send from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of computer readable medium. As used herein, disks and optical disks include CDs, laser disks, optical disks, digital versatile disks (DVDs), floppy disks, and Blu-ray disks. Disks can copy data magnetically, while optical disks can copy data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.

[0240] As used herein (including in the claims), "or" as used in a list of items (e.g., including a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means, for example, A or B or C or AB or AC or BC or ABC (e.g., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on". As used herein, the term "and / or", when used in a list of two or more items, means that any one of the listed items may be adopted alone, or any combination of two or more of the listed items may be adopted. For example, if a composition is described as comprising components A, B, and / or C, the composition may comprise: only A; only B; only C; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B, and C.

[0241] The terms "determine" or "determining" or "identify" or "identifying" include a wide variety of actions, and thus, "determining" or "identifying" may include calculating, computing, processing, deriving, investigating, looking up (e.g., via a lookup in a table, a database, or another data structure), ascertaining, and the like. Furthermore, "determining" or "identifying" may include receiving (e.g., receiving information or signaling, e.g., receiving information or signaling for determining, receiving information or signaling for identifying), accessing (e.g., accessing data in a memory, or accessing information), and the like. Furthermore, "determining" or "identifying" may include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.

[0242] In the accompanying drawings, similar components or features may have the same reference numeral. In addition, various components of the same type may be distinguished by following the reference numeral with a dash and a second reference numeral, the second reference numeral being used to distinguish between similar components. If only the first reference numeral is used in the specification, the description applies to any of the similar components having the same first reference numeral, without regard to the second reference numeral or other subsequent reference numerals.

[0243] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations, and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "advantageous over other examples." For the purpose of providing an understanding of the described techniques, the detailed description includes specific details. However, these techniques may be implemented without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0244] To enable those of ordinary skill in the art to implement or use the present disclosure, the description herein is provided. Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but is given the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for wireless communication at a wireless device, comprising: processor; as well as A memory coupled to the processor, the memory storing instructions, the instructions being used by the processor to cause the wireless device to perform the following operations: Segmenting the bit sequence of information bits into a plurality of bit groups; mapping each bit group of the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols; encoding the plurality of ordered information symbols to generate a plurality of codewords; Demapping each of the plurality of codewords to generate a plurality of sequences; multiplexing the plurality of sequences to generate a pseudo-random sequence; as well as A signal generated based at least in part on the pseudo-random sequence is transmitted.

2. The device according to claim 1, wherein: The instructions are also used for the processor to cause the wireless device to perform the following operations: Control signaling is received indicating that the wireless device is to use single-stage randomization or multi-stage randomization, wherein the pseudo-random sequence is generated based at least in part on the multi-stage randomization.

3. The device according to claim 1, wherein: The instructions are also used for the processor to cause the wireless device to perform the following operations: Control signaling is received indicating that the wireless device is to generate a plurality of orthogonal sequences based at least in part on the pseudo-random sequence using an orthogonal cover code, wherein the signal is generated based at least in part on the orthogonal cover code.

4. The device according to claim 1, wherein: The instructions are also used for the processor to cause the wireless device to perform the following operations: Control signaling is received indicating a configuration for generating the pseudo-random sequence, wherein the pseudo-random sequence is generated based at least in part on the configuration.

5. The device according to claim 1, wherein: The instructions for encoding the plurality of ordered information symbols are used by the processor to cause the wireless device to perform the following operations: encoding the plurality of ordered information symbols using a codebook associated with an error detection code or an error correction code; as well as A codeword is generated, wherein the codeword includes information symbols in the plurality of ordered information symbols and a plurality of check symbols, wherein the check symbols include cyclic redundancy check symbols of the error detection code, parity check symbols of the error correction code, or a combination thereof.

6. The device according to claim 5, wherein: For a given code rate or a given codebook size, the codewords in the codebook have a defined separation distance.

7. The device according to claim 5, wherein: The codeword is generated using an error detection coding algorithm, which is a Reed-Solomon code or a Bose-Chaudhuri-Hocquenghem code.

8. The device according to claim 1, wherein: The instructions are also used for the processor to cause the wireless device to perform the following operations: Zero padding is performed on each of a plurality of information bit subsets, each information bit subset corresponding to an information symbol defined on a finite field, wherein the zero padding generates the bit sequence of information bits.

9. The device according to claim 1, wherein: The instructions are also used for the processor to cause the wireless device to perform the following operations: A plurality of information bit subsets are processed, each information bit subset corresponding to an information symbol, the processing comprising: multiplexing, interleaving, or both, the plurality of information bit subsets to generate the plurality of ordered information symbols.

10. The device according to claim 1, wherein: The instructions are also used for the processor to cause the wireless device to perform the following operations: A second pseudo-random sequence generator is initialized based at least in part on the pseudo-random sequence, wherein elements of the pseudo-random sequence are binary or non-binary.

11. The device according to claim 10, wherein: The second pseudo-random sequence generator includes one or more linear feedback shift registers; and Operations on the one or more linear feedback shift registers are defined over a binary finite field or a non-binary finite field.

12. The device according to claim 10, wherein: The instruction for initializing the second pseudo-random sequence generator is used by the processor to cause the wireless device to perform the following operations: The pseudo-random sequence encoded and including a plurality of information symbols and check symbols is used as an input of an initialized second pseudo-random sequence generator.

13. The device according to claim 1, wherein: The instructions are also used for the processor to cause the wireless device to perform the following operations: generating a plurality of bit subsets based at least in part on the plurality of ordered information bits; generating an orthogonal cover code based at least in part on a first subset of the plurality of bit subsets; Applying the orthogonal cover code to the pseudo-random sequence to generate a plurality of orthogonal or pseudo-orthogonal random sequences; as well as A reference signal is generated based at least in part on the plurality of orthogonal or pseudo-orthogonal random sequences.

14. The device according to claim 13, wherein: The instructions are also used for the processor to cause the wireless device to perform the following operations: The plurality of orthogonal or pseudo-orthogonal random sequences are multiplexed to generate a multiplexed signal, wherein the reference signal is generated based at least in part on the multiplexed plurality of orthogonal or pseudo-orthogonal random sequences.

15. The device according to claim 13, wherein: The instruction for generating the orthogonal cover code is used by the processor to cause the wireless device to perform the following operations: The orthogonal cover codes are generated using a closed form formula that includes a Walsh-Hadamard code, a constant amplitude zero autocorrelation waveform sequence, a linear frequency modulation sequence, or any combination thereof.

16. The device according to claim 13, wherein: The instructions for applying the orthogonal cover code are used by the processor to cause the wireless device to perform the following operations: Each of the plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are segmented to generate the plurality of pseudo-random symbol subsets.

17. The device according to claim 13, wherein: The instructions for applying the orthogonal cover code are used by the processor to cause the wireless device to perform the following operations: Each of the plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are repeated to generate the plurality of pseudo-random symbol subsets.

18. The device according to claim 13, wherein: The instructions for applying the orthogonal cover code are used by the processor to cause the wireless device to perform the following operations: Each pseudo-random symbol subset in a plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are concatenated with one or more second pseudo-random sequences to generate the plurality of pseudo-random symbol subsets.

19. An apparatus for wireless communication at a wireless device, comprising: processor; as well as A memory coupled to the processor, the memory storing instructions, the instructions being used by the processor to cause the wireless device to perform the following operations: generating a plurality of bit subsets based at least in part on the plurality of ordered information bits; generating an orthogonal cover code based at least in part on a first subset of the plurality of bit subsets; Applying the orthogonal cover code to an input pseudo-random sequence to generate a plurality of orthogonal or pseudo-orthogonal random sequences; as well as A reference signal is generated based at least in part on the plurality of orthogonal or pseudo-orthogonal random sequences.

20. The device according to claim 19, wherein The instructions are also used for the processor to cause the wireless device to perform the following operations: The plurality of orthogonal or pseudo-orthogonal random sequences are multiplexed to generate a multiplexed signal, wherein the reference signal is generated based at least in part on the multiplexed plurality of orthogonal or pseudo-orthogonal random sequences.

21. The device according to claim 19, wherein The instruction for generating the orthogonal cover code is used by the processor to cause the wireless device to perform the following operations: The orthogonal cover codes are generated using a closed form formula, which is a Walsh-Hadamard code, or a constant amplitude zero autocorrelation waveform sequence, or a linear frequency modulation sequence, or any combination thereof.

22. The device according to claim 19, wherein The instructions for applying the orthogonal cover code are used by the processor to cause the wireless device to perform the following operations: Each of a plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is segmented to generate the plurality of pseudo-random symbol subsets.

23. The device according to claim 19, wherein: The instructions for applying the orthogonal cover code are used by the processor to cause the wireless device to perform the following operations: Each of a plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is repeated to generate the plurality of pseudo-random symbol subsets.

24. The device according to claim 19, wherein The instructions for applying the orthogonal cover code are used by the processor to cause the wireless device to perform the following operations: Each of the plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is concatenated with one or more second pseudo-random sequences to generate the plurality of pseudo-random symbol subsets.

25. The device according to claim 19, wherein The instructions are also used for the processor to cause the wireless device to perform the following operations: Segmenting the bit sequence of information bits into a plurality of bit groups; mapping each bit group of the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols; encoding the plurality of ordered information symbols to generate a plurality of codewords; Demapping each of the plurality of codewords to generate a plurality of sequences; as well as The plurality of sequences are multiplexed to generate a pseudo-random sequence including the plurality of ordered information symbols.

26. The device according to claim 19, wherein The instructions are also used for the processor to cause the wireless device to perform the following operations: Control signaling is received indicating a configuration for generating the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the plurality of orthogonal or pseudo-orthogonal random sequences are generated based at least in part on the configuration.

27. A method for wireless communication at a wireless device, comprising: Segmenting the bit sequence of information bits into a plurality of bit groups; mapping each bit group of the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols; encoding the plurality of ordered information symbols to generate a plurality of codewords; Demapping each of the plurality of codewords to generate a plurality of sequences; multiplexing the plurality of sequences to generate a pseudo-random sequence; as well as A signal generated based at least in part on the pseudo-random sequence is transmitted.

28. The method according to claim 27, further comprising: Control signaling is received indicating that the wireless device is to use single-stage randomization or multi-stage randomization, wherein the pseudo-random sequence is generated based at least in part on the multi-stage randomization.

29. The method of claim 27, further comprising: Control signaling is received indicating that the wireless device is to generate a plurality of orthogonal sequences based at least in part on the pseudo-random sequence using an orthogonal cover code, wherein the signal is generated based at least in part on the orthogonal cover code.

30. The method of claim 27, further comprising: Control signaling is received indicating a configuration for generating the pseudo-random sequence, wherein the pseudo-random sequence is generated based at least in part on the configuration.

31. The method of claim 27, wherein: Encoding the plurality of ordered information symbols comprises: encoding the plurality of ordered information symbols using a codebook associated with an error detection code or an error correction code; and A codeword is generated, wherein the codeword includes information symbols in the plurality of ordered information symbols and a plurality of check symbols, wherein the check symbols include cyclic redundancy check symbols of the error detection code, parity check symbols of the error correction code, or a combination thereof.

32. The method according to claim 31, wherein: For a given code rate or a given codebook size, the codewords in the codebook have a defined separation distance.

33. The method according to claim 31, wherein: The codeword is generated using an error detection coding algorithm, which is a Reed-Solomon code or a Bose-Chaudhuri-Hocquenghem code.

34. The method of claim 27, further comprising: Zero padding is performed on each of a plurality of information bit subsets, each information bit subset corresponding to an information symbol defined on a finite field, wherein the zero padding generates the bit sequence of information bits.

35. The method of claim 27, further comprising: A plurality of information bit subsets are processed, each information bit subset corresponding to an information symbol, the processing comprising: multiplexing, interleaving, or both, the plurality of information bit subsets to generate the plurality of ordered information symbols.

36. The method of claim 27, further comprising: A second pseudo-random sequence generator is initialized based at least in part on the pseudo-random sequence, wherein elements of the pseudo-random sequence are binary or non-binary.

37. The method of claim 36, wherein: The second pseudo-random sequence generator includes one or more linear feedback shift registers; and Operations on the one or more linear feedback shift registers are defined over a binary finite field or a non-binary finite field.

38. The method of claim 36, wherein: Initializing the second pseudo-random sequence generator includes: The pseudo-random sequence encoded and including a plurality of information symbols and check symbols is used as an input of an initialized second pseudo-random sequence generator.

39. The method of claim 27, further comprising: generating a plurality of subsets of bits based at least in part on the plurality of ordered information bits; generating an orthogonal cover code based at least in part on a first subset of the plurality of bit subsets; Applying the orthogonal cover code to the pseudo-random sequence to generate a plurality of orthogonal or pseudo-orthogonal random sequences; as well as A reference signal is generated based at least in part on the plurality of orthogonal or pseudo-orthogonal random sequences.

40. The method of claim 39, further comprising: The plurality of orthogonal or pseudo-orthogonal random sequences are multiplexed to generate a multiplexed signal, wherein the reference signal is generated based at least in part on the multiplexed plurality of orthogonal or pseudo-orthogonal random sequences.

41. The method of claim 39, wherein: Generating the orthogonal cover code comprises: The orthogonal cover codes are generated using a closed form formula that includes a Walsh-Hadamard code, a constant amplitude zero autocorrelation waveform sequence, a linear frequency modulation sequence, or any combination thereof.

42. The method of claim 39, wherein: Applying the orthogonal cover code comprises: Each of the plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are segmented to generate the plurality of pseudo-random symbol subsets.

43. The method of claim 39, wherein: Applying the orthogonal cover code comprises: Each of the plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are repeated to generate the plurality of pseudo-random symbol subsets.

44. The method of claim 39, wherein: Applying the orthogonal cover code comprises: Each pseudo-random symbol subset in a plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the pseudo-random sequences are concatenated with one or more second pseudo-random sequences to generate the plurality of pseudo-random symbol subsets.

45. A method for wireless communication at a wireless device, comprising: generating a plurality of bit subsets based at least in part on the plurality of ordered information bits; generating an orthogonal cover code based at least in part on a first subset of the plurality of bit subsets; Applying the orthogonal cover code to an input pseudo-random sequence to generate a plurality of orthogonal or pseudo-orthogonal random sequences; as well as A reference signal is generated based at least in part on the plurality of orthogonal or pseudo-orthogonal random sequences.

46. ​​The method of claim 45, further comprising: The plurality of orthogonal or pseudo-orthogonal random sequences are multiplexed to generate a multiplexed signal, wherein the reference signal is generated based at least in part on the multiplexed plurality of orthogonal or pseudo-orthogonal random sequences.

47. The method of claim 45, wherein: Generating the orthogonal cover code comprises: The orthogonal cover codes are generated using a closed form formula, which is a Walsh-Hadamard code, or a constant amplitude zero autocorrelation waveform sequence, or a linear frequency modulation sequence, or any combination thereof.

48. The method of claim 45, wherein: Applying the orthogonal cover code comprises: Each of a plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is segmented to generate the plurality of pseudo-random symbol subsets.

49. The method of claim 45, wherein: Applying the orthogonal cover code comprises: Each of a plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is repeated to generate the plurality of pseudo-random symbol subsets.

50. The method of claim 45, wherein: Applying the orthogonal cover code comprises: Each pseudo-random symbol subset in a plurality of pseudo-random symbol subsets is multiplied by a corresponding symbol of the orthogonal cover code to generate the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the input pseudo-random sequence is concatenated with one or more second pseudo-random sequences to generate the plurality of pseudo-random symbol subsets.

51. The method of claim 45, further comprising: Segmenting the bit sequence of information bits into a plurality of bit groups; mapping each bit group of the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols; encoding the plurality of ordered information symbols to generate a plurality of codewords; Demapping each of the plurality of codewords to generate a plurality of sequences; as well as The plurality of sequences are multiplexed to generate a pseudo-random sequence including the plurality of ordered information symbols.

52. The method of claim 45, further comprising: Control signaling is received indicating a configuration for generating the plurality of orthogonal or pseudo-orthogonal random sequences, wherein the plurality of orthogonal or pseudo-orthogonal random sequences are generated based at least in part on the configuration.

53. An apparatus for wireless communication at a wireless device, comprising: A unit for segmenting a bit sequence of information bits into a plurality of bit groups; means for mapping each bit group of the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols; means for encoding the plurality of ordered information symbols to generate a plurality of codewords; means for demapping each of the plurality of codewords to generate a plurality of sequences; means for multiplexing the plurality of sequences to generate a pseudo-random sequence; as well as Means for transmitting a signal generated based at least in part on the pseudo-random sequence.

54. An apparatus for wireless communication at a wireless device, comprising: means for generating a plurality of subsets of bits based at least in part on the plurality of ordered information bits; means for generating an orthogonal cover code based at least in part on a first subset of the plurality of bit subsets; means for applying said orthogonal cover code to an input pseudo-random sequence to generate a plurality of orthogonal or pseudo-orthogonal random sequences; as well as Means for generating a reference signal based at least in part on the plurality of orthogonal or pseudo-orthogonal random sequences.

55. A non-transitory computer readable medium storing code for wireless communication at a wireless device, the code comprising instructions for a processor to cause the wireless device to: Segmenting the bit sequence of information bits into a plurality of bit groups; mapping each bit group of the plurality of bit groups to a corresponding symbol to generate a plurality of ordered information symbols; encoding the plurality of ordered information symbols to generate a plurality of codewords; Demapping each of the plurality of codewords to generate a plurality of sequences; multiplexing the plurality of sequences to generate a pseudo-random sequence; as well as A signal generated based at least in part on the pseudo-random sequence is transmitted.

56. A non-transitory computer readable medium storing code for wireless communication at a wireless device, the code comprising instructions for a processor to cause the wireless device to: generating a plurality of bit subsets based at least in part on the plurality of ordered information bits; generating an orthogonal cover code based at least in part on a first subset of the plurality of bit subsets; Applying the orthogonal cover code to an input pseudo-random sequence to generate a plurality of orthogonal or pseudo-orthogonal random sequences; as well as A reference signal is generated based at least in part on the plurality of orthogonal or pseudo-orthogonal random sequences.

Images