Two-stage channel interleaving for data transmission

Abstract

Methods, systems, and devices for wireless communications are described that can perform two-stage channel interleaving in which code blocks are interleaved at the code block level and the code symbol level. Interleaved code block data can provide time diversity for the code block data, while interleaved symbol data can provide frequency diversity for the code block data, thereby helping to mitigate narrowband and / or burst interference. In some examples, interleaving within a code block and interleaving within a code symbol can allow for pipelined decoding of code blocks at a receiver for faster processing. In some cases, systematic data and parity data can be interleaved within the code block data to provide uniform distribution of systematic data in time within the code block.

Description

[0001] This application is a divisional application of a patent application with an international application date of June 16, 2017, an international application number of PCT / US2017 / 037960, a Chinese national application date of June 16, 2017, an application number of 201780044194.7, and an invention name of “Dual-stage channel interleaving for data transmission”.

[0002] Cross-references

[0003] This patent application claims priority to U.S. patent application No. 15 / 485,800, filed by Sun et al. on April 12, 2017, entitled “Dual Stage Channel Interleaving for Data Transmission,” and U.S. Provisional Patent Application No. 62 / 363,559, filed by Sun et al. on July 18, 2016, entitled “Dual Stage Channel Interleaving for Data Transmission,” each of which is assigned to the assignee of this application. background

[0004] The following relates generally to wireless communications and, more particularly, to two-stage channel interleaving for data transmission.

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, and orthogonal frequency division multiple access (OFDMA) systems (e.g., Long Term Evolution (LTE) systems). A wireless multiple-access communication system may include several base stations, each of which simultaneously supports communication for multiple communication devices, which may also be referred to as user equipment (UE).

[0006] As data rates increase, faster processing of transmitted signals is beneficial in order to maintain relatively high data rates and relatively low latency. Additionally, as wireless communication networks become more congested, operators are seeking ways to increase capacity, such as by using small cells, unlicensed spectrum, or wireless local area networks (WLANs) to offload some of the traffic and / or signaling. Many approaches to enhancing capacity may result in interference with concurrent communications in a cell or in adjacent / neighboring cells. This interference may be narrowband interference or "bursty" interference with a short duration. In order to provide enhanced data rates over wireless communication networks, it may be beneficial to achieve faster processing of transmissions and mitigate such interference at the UE or base station.

[0007] Overview

[0008] The described technology relates to improved methods, systems, and devices that support two-stage channel interleaving for data transmission. For example, the described technology provides two-stage channel interleaving, in which code blocks are interleaved at the code block level, concatenated with other interleaved code blocks, assigned to orthogonal frequency division multiplexing (OFDM) symbols, interleaved again within each OFDM symbol at the coded bit level, modulation symbol level, or resource element level, and transmitted to the receiver. In some examples, interleaving within a code block and interleaving within an OFDM symbol allows for pipelined decoding of code blocks at the receiver for faster processing. In some cases, systematic data and parity data can be interleaved within the code block data to provide uniform distribution of systematic data in time within the code block. Interleaved code block data can provide time diversity for the code block data, while interleaved OFDM symbol data can provide frequency diversity for the code block data, thereby helping to mitigate narrowband and / or burst interference.

[0009] A wireless communication method is described. The method may include identifying code block data to be transmitted to a receiver in a code block, interleaving the code block data to generate interleaved code block data, sequentially concatenating the interleaved code block data from different code blocks, sequentially assigning the concatenated interleaved code block data to OFDM symbols, interleaving the concatenated interleaved code block data assigned to each OFDM symbol to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol, and transmitting the OFDM symbols to the receiver.

[0010] An apparatus for wireless communication is described. The apparatus may include means for identifying code block data to be transmitted to a receiver in a code block, means for interleaving the code block data to generate interleaved code block data, means for sequentially concatenating the interleaved code block data from different code blocks, means for sequentially allocating the concatenated interleaved code block data to OFDM symbols, means for interleaving the concatenated interleaved code block data allocated to each OFDM symbol to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol, and means for transmitting the OFDM symbols to the receiver.

[0011] Another apparatus for wireless communication is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are operable to cause the processor to: identify code block data to be transmitted to a recipient in a code block, interleave the code block data to generate interleaved code block data, sequentially concatenate the interleaved code block data from different code blocks, sequentially assign the concatenated interleaved code block data to OFDM symbols, interleave the concatenated interleaved code block data assigned to each OFDM symbol to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol, and transmit the OFDM symbols to the recipient.

[0012] A non-transitory computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include instructions operable to cause a processor to: identify code block data to be transmitted to a recipient in a code block, interleave the code block data to generate interleaved code block data, sequentially concatenate the interleaved code block data from different code blocks, sequentially assign the concatenated interleaved code block data to OFDM symbols, interleave the concatenated interleaved code block data assigned to each OFDM symbol to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol, and transmit the OFDM symbols to the recipient.

[0013] Some examples of the above methods, apparatuses, and non-transitory computer-readable media may further include processes, features, devices, or instructions for interleaving systematic data and parity data within code block data to provide a uniform temporal distribution of systematic data within the code block. In some examples of the above methods, apparatuses, and non-transitory computer-readable media, the interleaved code block data provides time diversity for the code block data, and the interleaved OFDM symbol data provides frequency diversity for the code block data. In some examples of the above methods, apparatuses, and non-transitory computer-readable media, the code block data includes turbo code encoded data, low-density parity check (LDPC) encoded data, or tail-biting convolutional code (TBCC) encoded data.

[0014] Some examples of the above methods, apparatuses, and non-transitory computer-readable media may further include processes, features, devices, or instructions for distributing interleaved code block data from a plurality of code blocks into a plurality of other OFDM symbols; for the plurality of other OFDM symbols, interleaving associated portions of the interleaved code block data to generate interleaved OFDM symbol data for the plurality of other OFDM symbols; and transmitting the plurality of other OFDM symbols of the code block to a recipient. In some examples of the above methods, apparatuses, and non-transitory computer-readable media, interleaving within a code block and interleaving within an OFDM symbol may allow for pipelined implementation of decoding the code block at the recipient.

[0015] In some examples of the above-mentioned methods, equipment (devices) and non-transitory computer-readable media, the allocation may include identifying a resource allocation of wireless resources for code block transmission, the resource allocation including a plurality of OFDM codewords, a plurality of resource elements (REs) within each OFDM codeword, and an allocation of a set of spatial layers within each RE; first mapping the interleaved code block data to one or more spatial layers within the same RE; secondly mapping the interleaved code block data to multiple REs within the OFDM codeword; and thirdly mapping the interleaved code block data to multiple OFDM codewords.

[0016] Some examples of the methods, equipment (devices) and non-transitory computer-readable media described above may further include a process, feature, device or instruction for receiving an indication from a recipient as to whether the recipient is capable of supporting two-stage channel interleaving. Some examples of the above methods, equipment (devices) and non-transitory computer-readable media may further include a process, feature, device or instruction for performing two-stage interleaving to generate interleaved code block data and interleaved OFDM symbol data in response to the recipient indicating that it is capable of supporting two-stage interleaving. Some examples of the above methods, equipment (devices) and non-transitory computer-readable media may further include a process, feature, device or instruction for performing old-style channel-free interleaving or single-stage channel interleaving in the absence of an indication that the recipient is capable of supporting two-stage channel interleaving.

[0017] Some examples of the above-mentioned methods, equipment (devices) and non-transitory computer-readable media may further include processes, features, devices or instructions for determining whether the code block data includes broadcast data to be transmitted to multiple recipients or unicast data to be transmitted to a single recipient, performing two-stage channel interleaving to generate interleaved code block data and interleaved OFDM symbol data when the code block data includes unicast data, and bypassing interleaving to generate interleaved code block data and interleaved OFDM symbol data when the code block data includes broadcast data.

[0018] A method of wireless communication is described. The method may include receiving a plurality of OFDM symbols for a transmitted code block, demodulating the plurality of OFDM symbols to obtain interleaved OFDM symbol data for the plurality of OFDM symbols, deinterleaving the interleaved OFDM symbol data for the plurality of OFDM symbols to obtain deinterleaved OFDM symbol data for the plurality of OFDM symbols, concatenating the deinterleaved OFDM symbol data for the plurality of OFDM symbols for the transmitted code block to obtain interleaved code block data for the transmitted code block, deinterleaving the interleaved code block data to obtain deinterleaved code block data, and decoding the deinterleaved code block data.

[0019] An apparatus for wireless communication is described. The apparatus may include: means for receiving a plurality of OFDM symbols for a transmitted code block, means for demodulating the plurality of OFDM symbols to obtain interleaved OFDM symbol data for the plurality of OFDM symbols, means for deinterleaving the interleaved OFDM symbol data for the plurality of OFDM symbols to obtain deinterleaved OFDM symbol data for the plurality of OFDM symbols, means for concatenating the deinterleaved OFDM symbol data for the plurality of OFDM symbols for the transmitted code block to obtain interleaved code block data for the transmitted code block, means for deinterleaving the interleaved code block data to obtain deinterleaved code block data, and means for decoding the deinterleaved code block data.

[0020] Another apparatus for wireless communication is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are operable to cause the processor to: receive a plurality of OFDM symbols for a transmitted code block, demodulate the plurality of OFDM symbols to obtain interleaved OFDM symbol data for the plurality of OFDM symbols, deinterleave the interleaved OFDM symbol data for the plurality of OFDM symbols to obtain deinterleaved OFDM symbol data for the plurality of OFDM symbols, concatenate the deinterleaved OFDM symbol data for the plurality of OFDM symbols for the transmitted code block to obtain interleaved code block data for the transmitted code block, deinterleave the interleaved code block data to obtain deinterleaved code block data, and decode the deinterleaved code block data.

[0021] A non-transitory computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include instructions operable to cause a processor to receive a plurality of OFDM symbols for a transmitted code block, demodulate the plurality of OFDM symbols to obtain interleaved OFDM symbol data for the plurality of OFDM symbols, deinterleave the interleaved OFDM symbol data for the plurality of OFDM symbols to obtain deinterleaved OFDM symbol data for the plurality of OFDM symbols, concatenate the deinterleaved OFDM symbol data for the plurality of OFDM symbols for the transmitted code block to obtain interleaved code block data for the transmitted code block, deinterleave the interleaved code block data to obtain deinterleaved code block data, and decode the deinterleaved code block data.

[0022] In some examples of the above-mentioned methods, equipment (devices) and non-transitory computer-readable media, the interleaved code block data includes interleaved systematic data and parity data within the code block, and the systematic data can be evenly distributed throughout the interleaved code block data. In some examples of the above-mentioned methods, equipment (devices) and non-transitory computer-readable media, the interleaved code block data provides time diversity for the deinterleaved code block data, and the interleaved OFDM symbol data provides frequency diversity for the deinterleaved code block data. In some examples of the above-mentioned methods, equipment (devices) and non-transitory computer-readable media, decoding the deinterleaved code block data includes decoding turbo code encoded data, LDPC encoded data or TBCC encoded data. In some examples of the above-mentioned methods, equipment (devices) and non-transitory computer-readable media, decoding the deinterleaved code block data includes pipeline decoding of the code block.

[0023] Some examples of the methods, equipment (devices), and non-transitory computer-readable media described above may further include a process, feature, device, or instruction for transmitting an indication indicating the ability to support dual-stage channel interleaving to the transmitter of the transmitted code block.

[0024] Some examples of the above-mentioned methods, equipment (devices) and non-transitory computer-readable media may further include a process, feature, device or instruction for receiving signaling indicating whether the transmitted code block contains interleaved code block data and interleaved OFDM code symbols; when the signaling does not indicate that the transmitted code block contains interleaved OFDM code data, performing a traditional single-stage deinterleaving of parity data within the transmitted code block; and when the signaling does indicate that the transmitted code block contains interleaved OFDM code data, performing deinterleaving of the interleaved OFDM code data, and concatenating and deinterleaving the interleaved code block data.

[0025] A wireless communication method is described. The method may include identifying code block data to be transmitted to a recipient in a code block, allocating the code block data into a plurality of OFDM symbols, interleaving the code block data allocated into the OFDM symbols to generate interleaved OFDM symbol data for the OFDM symbols, and transmitting the OFDM symbols to the recipient.

[0026] An apparatus for wireless communication is described. The apparatus may include means for identifying code block data to be transmitted to a recipient in a code block, means for allocating the code block data into a plurality of OFDM symbols, means for interleaving the code block data allocated into the OFDM symbols to generate interleaved OFDM symbol data for the OFDM symbols, and means for transmitting the OFDM symbols to the recipient.

[0027] Another apparatus for wireless communication is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are operable to cause the processor to: identify code block data to be transmitted to a recipient in a code block, allocate the code block data into a plurality of OFDM symbols, interleave the code block data allocated into the OFDM symbols to generate interleaved OFDM symbol data for the OFDM symbols, and transmit the OFDM symbols to the recipient.

[0028] A non-transitory computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include instructions operable to cause a processor to identify code block data to be transmitted to a recipient in a code block, allocate the code block data into a plurality of OFDM symbols, interleave the code block data allocated into the OFDM symbols to generate interleaved OFDM symbol data for the OFDM symbols, and transmit the OFDM symbols to the recipient.

[0029] Some examples of the above methods, equipment (devices) and non-transitory computer-readable media may further include processes, features, devices or instructions for interleaving code block data to generate interleaved code block data, and wherein allocating the code block data includes allocating the interleaved code block data into OFDM code symbols.

[0030] Some examples of the above methods, apparatuses, and non-transitory computer-readable media may further include processes, features, devices, or instructions for interleaving systematic data and parity data within the code block data to provide a uniform temporal distribution of the systematic data within the code block. In some examples of the above methods, apparatuses, and non-transitory computer-readable media, the interleaved OFDM symbol data provides frequency diversity for the code block data. In some examples of the above methods, apparatuses, and non-transitory computer-readable media, the interleaved OFDM symbol data enables pipeline decoding of the code block at a receiver.

[0031] Further scope of applicability of the described methods and apparatus will become apparent from the following detailed description, claims, and drawings. The detailed description and specific examples are given by way of illustration, since various changes and modifications within the spirit and scope of the description will become apparent to those skilled in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] A further understanding of the nature and advantages of the present disclosure may be obtained by reference to the following drawings. In the drawings, similar components or features may have the same reference numerals. Additionally or alternatively, components of the same type may be distinguished by following the reference numeral with a dash and a second reference numeral that distinguishes between the similar components. If a first reference numeral is used in the specification, the description applies to any of the similar components having the same first reference numeral, regardless of the second reference numeral.

[0033] Figure 1 An example of a system for wireless communication supporting dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure is illustrated.

[0034] Figure 2 An example of a system for wireless communication supporting dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure is illustrated.

[0035] Figure 3 An example of two-stage channel interleaving for data transmission in accordance with aspects of the present disclosure is illustrated.

[0036] Figure 4 An example of a transmit processing component supporting dual-stage channel interleaving for data transmission is illustrated in accordance with aspects of the present disclosure.

[0037] Figure 5 An example of a receive processing component supporting dual-stage channel interleaving for data transmission is illustrated in accordance with aspects of the present disclosure.

[0038] Figure 6 An example of a process flow supporting two-stage channel interleaving for data transmission in accordance with aspects of the present disclosure is illustrated.

[0039] Figures 7 to 9 A diagram illustrating a device supporting dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure is shown.

[0040] Figure 10 Diagram illustrating a system including a base station supporting dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure.

[0041] Figures 11 to 13A diagram illustrating a device supporting dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure is shown.

[0042] Figure 14 Diagram illustrating a system including a UE supporting dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure.

[0043] Figures 15 to 22 A method of two-stage channel interleaving for data transmission according to aspects of the present disclosure is illustrated. Detailed description

[0044] A UE or base station operating in a wireless communication system may perform a two-stage channel interleaving in which coded bits are interleaved at the code block level and the OFDM symbol level. Code block level interleaving may provide time diversity for code block data, while OFDM symbol level interleaving may provide frequency diversity for code block data, thereby helping to mitigate narrowband and / or burst interference. In some examples, interleaving within a code block and interleaving within an OFDM symbol may allow for pipelined implementation of decoding of code blocks at the receiver for faster processing. In some cases, system data and parity data may be interleaved within the code block data to provide a uniform distribution of system data in time within the code block, further enhancing interference mitigation relative to system bits that are not interleaved within the code block.

[0045] As an example, in many traditional or legacy LTE systems, transmission occurs within a Transmission Time Interval (TTI). Within each TTI, a data stream can be transmitted between a base station and a UE in a Physical Downlink Shared Channel (PDSCH) for downlink communication or a Physical Uplink Shared Channel (PUSCH) for uplink communication. The data stream transmitted in the PDSCH or PUSCH can be segmented into code blocks. In some deployments, each code block is encoded with a turbo code or LDPC code to generate systematic bits and parity bits for the code block. In many legacy systems, the parity bits can be interleaved within the code block, the systematic bits and interleaved parity bits can be placed in a circular buffer, and a rate matching function selects a certain number of bits from the circular buffer for each code block for transmission at a time. For a specific Redundancy Version Identifier (RVID), a starting point within the circular buffer is identified, and a certain number of bits are retrieved from the circular buffer. The output from each circular buffer is sequentially concatenated and sent to the modulator. The modulated symbols are filled frequency first for PDSCH transmission or time first for PUSCH transmission.

[0046] As described above, as data rates increase and operators employ various techniques to increase system capacity, additional techniques for enhancing the decoding of transmissions and for mitigating certain types of interference may be desired. For example, various timing parameters for providing feedback of successful reception of a code block may require relatively rapid processing of received code blocks, and pipeline decoding of code blocks may be desired. In some legacy systems, a PUSCH transmission may be configured such that a radio resource is filled with a tone for multiple OFDM symbols, and then the next tone is filled with multiple OFDM symbols. Such techniques may not allow for pipeline decoding of OFDM symbols because multiple OFDM symbols are required in order to process a code block.

[0047] Additionally, certain types of transmissions used to increase system capacity may have a higher likelihood of narrowband or burst interference. For example, if a carrier uses a shared radio spectrum band, other transmitters using the shared radio spectrum band may transmit narrowband or short-duration transmissions that may interfere with transmissions between a UE and a base station. Additionally, in some cases, a system may use a shorter TTI for some transmissions, which may be more susceptible to burst interference than a system that can use a longer TTI. For example, if an operator wants to adopt wideband communication, such as by using a channel with an 80 MHz bandwidth instead of four 20 MHz channels, using 8x8 multiple-input multiple-output (MIMO) on eight receive antennas and eight transmit antennas, and employing 256 quadrature amplitude modulation (256QAM), each OFDM symbol may be able to transmit multiple code blocks (e.g., up to 20 code blocks per OFDM symbol). Therefore, within an OFDM symbol without interleaving, a code block may be contained within a portion of the 80 MHz channel (e.g., if there are 20 code blocks per OFDM symbol, the code block may be contained within the first 1 / 20 of the bandwidth). Narrowband interference occupying all of the bandwidth portion containing the code block may therefore result in the inability to receive the entire code block.

[0048] As described above, the various techniques described herein provide two-stage channel interleaving, in which code blocks are interleaved at the code block level, concatenated with other interleaved code blocks, assigned to OFDM symbols, interleaved again at the modulation symbol level within each OFDM symbol, and transmitted to the receiver. Interleaving within code blocks and within OFDM symbols allows for pipelined decoding of code blocks at the receiver. Additionally, systematic data and parity data can be interleaved within the code block data to provide uniform temporal distribution of the systematic data within the code block. Interleaved code block data can provide time diversity for the code block data, while interleaved OFDM symbol data can provide frequency diversity for the code block data, thereby helping to mitigate narrowband interference, burst interference, or a combination thereof. In situations where modulation symbols from a code block naturally occupy multiple OFDM symbols (e.g., when the code block size is relatively long, the number of assigned resource blocks (RBs) is small, and the coding rate is relatively low), the systematic bits of the code block can be evenly distributed across all OFDM symbols, providing additional time diversity.

[0049] Such a two-stage interleaving technique can thus achieve higher diversity in a variety of situations. For example, in the case of a wideband assignment with narrowband interference, additional frequency diversity can mitigate the narrowband interference because the code blocks are distributed throughout the wideband assignment using the second-stage interleaving (e.g., per-OFDM symbol interleaving). Additionally or alternatively, in the case of a narrowband assignment with short-time-domain interference, additional time diversity can mitigate the short-time-domain interference because the systematic bits in the code block can be distributed across all OFDM symbols occupied by the code block through the first-stage interleaving (e.g., code-block-level interleaving).

[0050] In some examples, one or more UEs or base stations may use dual-phase channel interleaving or legacy channel interleaving for some transmissions. In this case, the UE may indicate a capability for dual-phase channel interleaving support. When this capability is indicated by the UE, the base station may determine whether to enable dual-phase interleaving for unicast traffic and may indicate the interleaving to use via dynamic or semi-static signaling. In some examples, broadcast traffic may follow legacy channel interleaving and mapping for backward compatibility. Such dual-phase channel interleaving capability indication and scheduling may allow operators to configure certain traffic and certain UEs based on the capabilities of the one or more UEs being served.

[0051] Aspects of the present disclosure are initially described in the context of wireless communication systems. Subsequent figures illustrate examples of interleaving techniques that support dual-stage channel interleaving. Aspects of the present disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flow charts related to dual-stage channel interleaving for data transmission.

[0052] Figure 1An example of a wireless communication system 100 according to various aspects of the present disclosure is illustrated. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE (or LTE-Advanced) network. One or more of the UEs 115 may have a capability for two-phase channel interleaving, and one or more of the base stations 105 may take this capability into account when scheduling communications and transmissions to provide pipelined decisions and interference mitigation.

[0053] Base stations 105 can communicate wirelessly with UEs 115 via one or more base station antennas. Each base station 105 can provide communication coverage for a respective geographic coverage area 110. The communication links 125 shown in wireless communication system 100 can include uplink transmissions from UEs 115 to base stations 105, or downlink transmissions from base stations 105 to UEs 115. UEs 115 can be dispersed throughout wireless communication system 100, and each UE 115 can be stationary or mobile. UEs 115 can additionally or alternatively be referred to as mobile stations, subscriber stations, remote units, wireless devices, access terminals (ATs), handsets, user agents, clients, or similar terms. UEs 115 can additionally or alternatively be cellular phones, wireless modems, handheld devices, personal computers, tablet devices, personal electronic devices, machine type communication (MTC) devices, and the like.

[0054] Each base station 105 can communicate with the core network 130 and with each other. For example, the base station 105 can interface with the core network 130 via a backhaul link 132 (e.g., S1, etc.). The base stations 105 can communicate with each other directly or indirectly (e.g., through the core network 130) on a backhaul link 134 (e.g., X2, etc.). The base station 105 can perform radio configuration and scheduling for communication with the UE 115, or can operate under the control of a base station controller (not shown). In some examples, the base station 105 can be a macro cell, a small cell, a hotspot, etc. The base station 105 can additionally or alternatively be referred to as an evolved Node B (eNB) 105.

[0055] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include CDMA systems, TDMA systems, FDMA systems, and OFDMA systems. A wireless multiple-access communication system may include several base stations, each of which simultaneously supports communication for one or more communication devices, which may also be referred to as UEs.

[0056] In some cases, the wireless system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless system 100 may employ LTE License Assisted Access (LTE-LAA) or LTE Unlicensed (LTE U) radio access technology in an unlicensed band, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in an unlicensed radio frequency spectrum band, wireless devices, such as base stations 105 and UEs 115, may employ a listen-before-talk (LBT) procedure to ensure that the channel is clear before transmitting data. In some cases, operations in the unlicensed band may be based on a carrier aggregation configuration in coordination with component carriers (CCs) operating in the licensed band. Operations in the unlicensed spectrum may include downlink transmissions, uplink transmissions, or both. Duplexing in the unlicensed spectrum may be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of both.

[0057] In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). An eCC may be characterized by one or more characteristics, including wider bandwidth, shorter symbol duration, shorter TTI, and a modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC may additionally or alternatively be configured for use in an unlicensed spectrum or a shared spectrum (where more than one operator is permitted to use the spectrum). An eCC characterized by a wide bandwidth may include one or more segments that may be utilized by UEs 115 that are unable to monitor the entire bandwidth or prefer to use a limited bandwidth (e.g., to save power). In some cases, an eCC may utilize a different symbol duration than other CCs, which may include using a reduced symbol duration compared to the symbol duration of other CCs. Shorter symbol durations are associated with increased subcarrier spacing. Devices utilizing an eCC (such as UE 115 or base station 105) can transmit wideband signals (e.g., 20, 40, 60, 80 MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may include one or more symbols. In some cases, the TTI duration (i.e., the number of symbols in a TTI) may be variable. In some cases, an eCC may utilize a different symbol duration than other CCs, which may include using a reduced symbol duration compared to the symbol duration of other CCs. A shorter symbol duration is associated with increased subcarrier spacing. Devices utilizing an eCC (such as UE 115 or base station 105) can transmit wideband signals (e.g., 20, 40, 60, 80 MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may include one or more symbols. In some cases, the TTI duration (i.e., the number of symbols in a TTI) may be variable.

[0058] As described above, in examples where a shared radio spectrum may be used for all or part of the communication, interference (i.e., narrowband interference) may occur, or short duration or burst interference may occur when eCC or a combination thereof is used. Figure 1 In the example of FIG, Wi-Fi AP 140 may communicate with a Wi-Fi receiver (not shown) and may generate an interfering signal 145 (e.g., narrowband and / or burst interference) with one or more UEs 115 or base stations 105. Aspects of the present disclosure provide techniques for enhanced mitigation of this interference while also providing enhanced capabilities for pipelined decoding operations for certain transmissions.

[0059] Figure 2 An example of a wireless communication system 200 for dual-stage channel interleaving in wireless communication according to one or more aspects of the present disclosure is illustrated. Figure 1 The example of UE 115 described above. UE 115-a may be configured for dual-phase channel interleaving. Base station 105-a may be as described with reference to Figure 1 1. The base station 105-a may have an associated coverage area 110-a and may communicate with the base station 105 via a communication link 205 (which may be Figure 1 example of a communication link 125) to communicate with UE 115-a.

[0060] exist Figure 2 In the example of FIG10 , Wi-Fi AP 140-a may be located outside of coverage area 110-a, but may be capable of generating an interfering signal 210 that may cause interference at UE 115-a. For example, base station 105-a may initiate a transmission using communication link 205, while Wi-Fi AP 140-a may transmit a relatively short and / or narrowband transmission (e.g., a Ready to Send (RTS) transmission). Wi-Fi AP 140-a may be outside of the energy detection range of base station 105-a and, for example, may not detect the transmission via communication link 205 and, therefore, transmit interfering signal 210. In various examples of the present disclosure, communication link 205 may employ two-stage channel interleaving, in which coded bits are interleaved at the code block level and the OFDM symbol level, thereby providing frequency diversity and potentially time diversity for a code block transmitted using communication link 205 if the code block spans multiple OFDM symbols. Thus, this transmission may have a higher likelihood of successful reception because the interfering signal 210 may cause interference with a portion of the transmission on the communication link 205, and deinterleaving combined with decoding according to the coding scheme used (e.g., turbo coding or LDPC coding) may allow successful decoding of the transmission.

[0061] In addition, as described above, some examples may configure transmissions to provide pipeline decoding of transmissions. In such examples, pipeline decoding may be enabled by mapping data within the radio resources of a communication link. For example, resource allocation may include allocation of multiple OFDM symbols, multiple REs within each OFDM symbol, and an allocation of a set of spatial layers within each RE. In some examples, a transmitting device (e.g., a base station 105-a or a UE 115-a) may first map the interleaved code block data to one or more spatial layers within the same RE. The transmitting device may then map the interleaved code block data to multiple REs within an OFDM symbol, and ultimately map the interleaved code block data to multiple OFDM symbols. A receiving device (e.g., a base station 105-a or a UE 115-a receiving the transmission) may decode the received transmission on an OFDM symbol basis and perform processing when consecutive symbols are received.

[0062] In some examples, UE 115-a may provide base station 105-a with an indication of the ability of UE 115-a to perform two-phase channel interleaving. This signaling of the indication of the capability of UE 115-a may allow base station 105-a to configure two-phase channel interleaving or legacy channel interleaving for some transmissions. When UE 115-a indicates the capability of two-phase channel interleaving, base station 150-a may determine whether to enable two-phase interleaving for unicast traffic and may indicate the configured interleaving via dynamic or semi-static signaling. In some examples, broadcast traffic may follow legacy channel interleaving (or no interleaving) and mapping for backward compatibility.

[0063] Figure 3 An example 300 of two-stage channel interleaving for data transmission according to aspects of the present disclosure is illustrated. The two-stage interleaving of example 300 may be performed by a UE 115 or a base station 105 and may be used for example Figure 1 and 2 The communication between UE 115 and base station 105 discussed in .

[0064] A code block may be input into a coding block 305. The code block may be provided according to established techniques and may include, for example, uplink or downlink shared data to be transmitted using a PUSCH or PDSCH. In this example, the coding block 305 may output systematic bits 310, as well as a first set of parity bits 315 and a second set of parity bits 320. A code block level interleaver 325 may then perform code block level interleaving on the coded code block bits. In some examples, the systematic bits 310 from the coding block may be interleaved with the parity bits 315-320 to provide the systematic bits 310 and the parity bits 315-320 distributed throughout the interleaved code block to provide interleaved systematic and parity bits 330.

[0065] The concatenation and modulation block 335 may sequentially concatenate the interleaved systematic and parity bits 330 with the consecutive code block-level interleaved bits and modulate the concatenated output into modulation symbols. Allocation of the modulation symbols to OFDM symbols may be performed at block 340 to generate a first OFDM symbol 345, a second OFDM symbol 350, and a third OFDM symbol 355. For purposes of illustration and discussion, the number of OFDM symbols is Figure 3 As explained in

[15] , the modulation symbols can be allocated to any number of OFDM symbols. OFDM symbols 345-355 may then be provided to symbol interleaver 360, which may perform a second interleaving step at the OFDM symbol level within each OFDM symbol, which may provide frequency diversity for the data within each OFDM symbol to provide a first interleaved OFDM symbol 365, a second interleaved OFDM symbol 370, and a third interleaved OFDM symbol 375. Interleaved OFDM symbols 365-375 may then be transmitted to a recipient.

[0066] This type of two-stage channel interleaving can provide a unified design for achieving higher diversity in a variety of situations. For example, in the case of wideband channel transmissions experiencing narrowband interference, the distribution of code blocks across the entire bandwidth of the wideband channel by the symbol interleaver 360 increases the likelihood that a sufficient portion of the code block will be received for successful decoding of the code block. In the case of narrowband transmissions experiencing bursty or short-term interference, the distribution of systematic bits across the code block provided by the code block-level interleaver 325 can increase the likelihood that a sufficient portion of the code block will be received for successful decoding of the code block.

[0067] Figure 4 An example of a transmission processing component 400 that supports dual-stage channel interleaving for data transmission according to aspects of the present disclosure is illustrated. The processing component 400 may be included in a UE 115 or a base station 105 and used to Figure 1-2 The communication between UE 115 and base station 105 discussed in .

[0068] In some examples, dual-stage interleaving can be provided by a processing component for coding, modulation, and transmission. For example, in a base station 105 or UE 115 transmitting a signal, a rate matching component 405 can identify which coded bit set to transmit for each code block according to an old rate matching technique. Subsequently, the transmission processing component 400 can perform code block-level interleaving at a block-level interleaver 410. In some examples, a linear interleaver can be used to provide a block-level interleaver 410, and a uniform distribution of systematic bits can be provided throughout the interleaved code block, but other interleaving techniques can be used in some cases. In some examples, a block-level interleaver 410 can perform block-level interleaving for control channel transmission and shared channel transmission. In the case where block-level interleaving is performed for control channel transmission, the control channel can use TBCC instead of turbo coding or LDPC coding. In the TBCC situation, the code is not systematic, and the block-level interleaver 410 can provide an interleaving that can split burst errors (in the time domain or frequency domain) into random errors, which is better suited for TBCC.

[0069] The concatenation and modulation components can sequentially concatenate the outputs of the block-level interleavers 410 and modulate the concatenated outputs into modulation symbols. The symbol allocation component 420 can allocate the modulation symbols to the OFDM symbols. The symbol-level interleaver 425 can then perform a second interleaving step at the OFDM symbol level within each OFDM symbol, which can provide frequency diversity for the data within each OFDM symbol. The interleaved OFDM symbols can be provided to a transmission component 430 (e.g., an inverse fast Fourier transform (IFFT) component, an analog-to-digital converter (ADC) component, a radio frequency (RF) component) for transmission via one or more antennas 435. In some examples, a linear interleaver can be used to provide the symbol-level interleaver 425 (although other interleaving techniques can be used in some cases) and can provide enhanced frequency diversity for the bits of the code blocks transmitted within the OFDM symbols.

[0070] Figure 5 An example of a receive processing component 500 that supports dual-stage channel interleaving for data transmission according to aspects of the present disclosure is illustrated. The processing component 500 may be included in a UE 115 or a base station 105 and used to Figure 1-2 The communication between UE 115 and base station 105 discussed in .

[0071] In some examples, two-stage interleaving can be provided by processing components for receiving, decoding, and demodulating transmissions. For example, within a base station 105 or a UE 115 receiving a signal, a transmission can be received at one or more antennas 505. The transmission can include interleaved OFDM symbols, which can be processed using a receiving component 510 (e.g., a fast Fourier transform (FFT) component, an ADC component, an RF component), as described above.

[0072] The received signal may be provided to a symbol-level deinterleaver 515, which may perform symbol-level deinterleaving at the modulation symbol level within each OFDM symbol. In some examples, a linear deinterleaver may be used to provide the symbol-level deinterleaver 515, although other deinterleaving techniques may be used based on the interleaving technique used at the transmitter.

[0073] The deinterleaved modulation symbols can be provided to a symbol allocation component 520, which can determine the allocation of modulation symbols in the received OFDM symbols and provide the modulation symbols to a symbol demodulation component 525. The symbol demodulation component 525 can demodulate the modulation symbols and concatenate the demodulation symbols to provide an interleaved code block to a block-level deinterleaver 530. The block-level deinterleaver 530 performs code block-level deinterleaving, which deinterleaves the systematic bits and parity bits of the code block. In some examples, a linear deinterleaver can be used to provide the block-level deinterleaver 530, although other deinterleaving techniques can be used in some cases. In some examples, the received transmission may include a control channel transmission, and the block-level deinterleaver 530 can perform block-level deinterleaving on the control channel transmission and the shared channel transmission.

[0074] The deinterleaved code blocks can be provided to a rate dematching component 535, which can identify which set of coded bits was transmitted for each code block according to legacy rate matching techniques. As described above, such a two-stage channel deinterleaving can provide a unified design for achieving higher diversity in a variety of situations.

[0075] Figure 6 An example of a process flow 600 for dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure is illustrated. The steps of process flow 600 may be performed by a UE 115-b and a base station 105-b, which may be examples of the UE 115 and base station 105 described above.

[0076] The base station 105-b and the UE 115-b may perform a connection establishment 605 to establish a radio resource control (RRC) connection. In some examples, various configurations of parameters may be performed as part of the connection establishment 605, such as, for example, enabling two-phase channel interleaving via dynamic or semi-static configuration changes, configuring various communication parameters (e.g., hybrid automatic repeat request (HARQ) parameters and HARQ timing), configuring physical uplink control channel (PUCCH) resource offsets, or configuring interleaving for unicast and broadcast transmissions. In some cases, the UE 115-b may signal the base station 105-b with UE capabilities 610, which may include an indication that the UE 115-b is capable of two-phase channel interleaving.

[0077] At optional block 615, for example, the base station 105-b may identify the dual-stage interleaving capability of the UE 115-b, such as based on the signaled UE capabilities 610. In other examples, the base station 105-b may identify the capabilities of the UE 115-b by other techniques, such as by an indication of a UE type of the UE 115-b, an indication of one or more other capabilities that may additionally or alternatively indicate a capability for dual-stage channel interleaving, or an indication in the access request, to name a few examples. In some examples, the base station 105-b may determine whether to use dual-stage interleaving for transmission by determining whether the code block data to be transmitted includes broadcast data to be transmitted to multiple recipients or unicast data to be transmitted to a single recipient. In some examples, when the code block data includes unicast data, two-stage channel interleaving may be performed to generate interleaved code block data and interleaved OFDM symbol data, while when the code block data includes broadcast data, two-stage interleaving may be bypassed.

[0078] At block 620, the base station may perform coding and rate matching on the downlink data to be transmitted to UE 115-b. Figure 6 The example of illustrates downlink transmission using two-stage channel interleaving, but such techniques are additionally or alternatively applicable to uplink transmission. Coding and rate matching of downlink data to be transmitted to UE 115-b may be performed according to established legacy coding and rate matching (e.g., as described in 3GPP Technical Specification 36.212).

[0079] At block 625, the base station 105-b may perform block-level interleaving on the coded and rate-matched code block data. Block-level interleaving may include interleaving the systematic data and parity data within the code block data to, for example, provide a uniform distribution of the systematic data in time within the code block. In some examples, a linear interleaver is used for block-level interleaving to provide a uniform distribution of the systematic data in time within the code block. In other examples, other types of interleaving may be used, such as, for example, convolutional interleaving, random interleaving, S-random interleaving (e.g., where the interleaver is a known random permutation with the constraint that no input symbols within a distance S appear in the output within a distance S), or contention-free quadratic permutation polynomial (QPP) interleaving.

[0080] At block 630, the interleaved code block may be concatenated with other interleaved code blocks and allocated to one or more OFDM symbols. For example, the concatenation may be performed using a buffer, and the allocation to the OFDM symbols may be performed based on a resource allocation associated with the OFDM symbols. In some examples, the allocation may be performed by identifying a resource allocation of radio resources for transmission of the code block, the resource allocation comprising an allocation of multiple OFDM symbols, multiple REs within each OFDM symbol, and a set of spatial layers within each RE. In some examples, the allocation may be performed by first mapping the interleaved code block data to one or more spatial layers within the same RE, then mapping the interleaved code block data to multiple REs within the OFDM symbol, and finally mapping the interleaved code block data to multiple OFDM symbols.

[0081] At block 635, the base station 105-b may perform symbol-level interleaving at the modulation symbol level within each OFDM symbol. Symbol-level interleaving may include interleaving to provide frequency diversity for the data within the OFDM symbol. In some examples, a linear interleaver is used for symbol-level interleaving to provide uniform data distribution throughout the allocated frequency bandwidth, although other types of interleaving may be similarly used as described above.

[0082] The base station 105-b may then transmit the downlink communication 640 to the UE 115-b. The UE 115-b may receive the downlink communication 640 at one or more receive antennas and associated RF components and demodulate the downlink communication 640 into a plurality of OFDM symbols to obtain interleaved OFDM symbol data for each transmitted OFDM symbol. At block 645, the UE 115-b may perform symbol-level deinterleaving of the interleaved OFDM symbol data to obtain deinterleaved OFDM symbol data.

[0083] At block 650, UE 115-b may perform symbol concatenation / allocation on the OFDM symbols of the transmitted code block to obtain interleaved code block data for the transmitted code block. At block 655, UE 115-b may then perform code block-level deinterleaving on the interleaved code block data to obtain deinterleaved code block data, which may be decoded according to the encoding applied at base station 105-b (e.g., turbo decoding or LDPC decoding).

[0084] In some examples, downlink communication 640 may include signaling indicating whether the transmitted code block includes interleaved code block data and interleaved OFDM symbol data. In this case, when the signaling does not indicate that the transmitted code block includes interleaved OFDM symbol data, UE 115-b may perform legacy single-stage deinterleaving of parity data within the transmitted code block, and when the signaling does indicate that the transmitted code block includes interleaved OFDM symbol data, UE 115-b may perform dual-stage deinterleaving / decoding.

[0085] Figure 7 A diagram 700 illustrates a wireless device 705 that supports dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure. The wireless device 705 may be a wireless device 705 as described with reference to FIG. Figure 1 Examples of various aspects of base station 105 are described. Wireless device 705 may include a receiver 710, a base station communication manager 715, and a transmitter 720. Wireless device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0086] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to two-stage channel interleaving for data transmission, etc.). The information may be passed to other components of the device. The receiver 710 may be a reference Figure 10 Examples of various aspects of the transceiver 1035 are described.

[0087] The base station communication manager 715 may be a reference Figure 10 Examples of various aspects of the base station communication manager 1015 are described. The base station communication manager 715 may identify code block data to be transmitted to a recipient in a code block, interleave the code block data to generate interleaved code block data, sequentially concatenate the interleaved code block data from different code blocks, sequentially assign the concatenated interleaved code block data to OFDM symbols, and interleave the concatenated interleaved code block data assigned to each OFDM symbol to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol. In some cases, the base station communication manager 715 may additionally or alternatively identify code block data to be transmitted to a recipient in a code block, assign the code block data to a set of OFDM symbols, and interleave the code block data assigned to the OFDM symbols to generate interleaved OFDM symbol data for the OFDM symbols. In some examples, the base station communication manager 715 may interleave the code block data assigned to each OFDM symbol to generate interleaved OFDM symbol data for each OFDM symbol.

[0088] The transmitter 720 may transmit signals generated by other components of the device. In some examples, the transmitter 720 may be co-located with the receiver 710 in a transceiver module. For example, the transmitter 720 may be a reference Figure 10 Examples of aspects of the described transceiver 1035. The transmitter 720 may include a single antenna, or it may include a collection of antennas.

[0089] The transmitter 720 may transmit the OFDM symbol to the receiver and transmit another set of OFDM symbols of the code block to the receiver.

[0090] Figure 8 A diagram 800 illustrates a wireless device 805 that supports dual-stage channel interleaving for data transmission in accordance with aspects of the present disclosure. The wireless device 805 may be a wireless device 805 as described with reference to FIG. Figure 1 and 7 Examples of various aspects of the wireless device 705 or base station 105 are described. The wireless device 805 may include a receiver 810, a base station communication manager 815, and a transmitter 820. The wireless device 805 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0091] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to two-stage channel interleaving for data transmission, etc.). The information may be passed to other components of the device. The receiver 810 may be a reference Figure 10 Examples of various aspects of the transceiver 1035 are described.

[0092] The base station communication manager 815 may be a reference Figure 10 Examples of various aspects of the base station communication manager 1015 are described. The base station communication manager 815 may also include a code block encoder 825, a code block interleaver 830, a concatenation component 835, a resource allocation component 840, and a symbol data interleaver 845.

[0093] The code block encoder 825 may identify code block data to be transmitted to a recipient in a code block. In some cases, the code block data includes turbo code encoded data, LDPC encoded data, or TBCC encoded data.

[0094] The code block interleaver 830 can interleave the code block data to generate interleaved code block data, which in some cases can provide interleaved systematic data and parity data within the code block data to provide a uniform distribution of systematic data in time within the code block. In some cases, if no indication is received that the receiver can support two-stage channel interleaving, the code block interleaver 830 can perform legacy channel-free interleaving or single-stage channel interleaving. In some cases, the interleaved code block data provides time diversity for the code block data, while the interleaved OFDM symbol data provides frequency diversity for the code block data.

[0095] The concatenation component 835 can sequentially concatenate interleaved code block data from different code blocks. In some examples, this concatenation can be performed by adding sequential interleaved code block data to a buffer.

[0096] Resource allocation component 840 can sequentially allocate the concatenated interleaved code block data into OFDM symbols. In some cases, resource allocation component 840 can allocate interleaved code block data from multiple code blocks into other sets of OFDM symbols and allocate the code block data into a set of OFDM symbols. In some cases, the allocation includes a resource allocation that identifies radio resources for transmission of the code blocks, the resource allocation including an allocation of a set of OFDM symbols, a set of REs within each OFDM symbol, and an allocation of a set of spatial layers within each RE.

[0097] The symbol data interleaver 845 can interleave the concatenated interleaved code block data assigned to each OFDM symbol to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol. In some cases, the interleaved code block data and the interleaved OFDM symbol data can enable pipelined decoding of the code blocks at the receiver. In some examples, when the code block data includes unicast data, a two-stage channel interleaving can be performed to generate the interleaved code block data and the interleaved OFDM symbol data, while a single-stage interleaving can be used for broadcast data. In some cases, the interleaved OFDM symbol data provides frequency diversity for the code block data.

[0098] The transmitter 820 may transmit signals generated by other components of the device. In some examples, the transmitter 820 may be co-located with the receiver 810 in a transceiver module. For example, the transmitter 820 may be a reference Figure 10 Examples of aspects of the described transceiver 1035. The transmitter 820 may include a single antenna, or it may include a collection of antennas.

[0099] Figure 9 A diagram 900 illustrates a base station communication manager 915 supporting dual-phase channel interleaving for data transmission according to aspects of the present disclosure. The base station communication manager 915 may be a reference to Figure 7 、 810. The base station communication manager 915 may include a code block encoder 920, a code block interleaver 925, a concatenation component 930, a resource allocation component 935, a symbol data interleaver 940, a spatial layer mapping component 945, a frequency tone mapping component 950, a symbol mapping component 955, a receiver capability component 960, and a traffic identification component 965. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0100] The code block encoder 920 may identify code block data to be transmitted to a recipient in a code block. In some cases, the code block data includes turbo code encoded data, LDPC encoded data, or TBCC encoded data.

[0101] The code block interleaver 925 can interleave the code block data to generate interleaved code block data, which may include interleaving systematic data and parity data within the code block data to provide uniform distribution of systematic data in time within the code block. In some cases, the receiver capability component 860 may indicate that the receiver is not capable of two-stage interleaving, and in this case, the code block interleaver can perform legacy channel-free interleaving or single-stage channel interleaving. In some cases, the interleaved code block data provides time diversity for the code block data, while the interleaved OFDM symbol data provides frequency diversity for the code block data.

[0102] Similar to as discussed above, concatenation component 930 can sequentially concatenate interleaved code block data from different code blocks.

[0103] Resource allocation component 935 can sequentially allocate the concatenated interleaved code block data into OFDM symbols. In some cases, the allocation includes a resource allocation that identifies wireless resources for transmission of the code blocks, the resource allocation including an allocation of a set of OFDM symbols, a set of REs within each OFDM symbol, and a set of spatial layers within each RE.

[0104] A symbol data interleaver 940 may interleave the concatenated interleaved code block data assigned to each OFDM symbol to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol. In some cases, the interleaved OFDM symbol data provides frequency diversity for the code block data. In some cases, the interleaved OFDM symbol data enables pipeline decoding of the code blocks at the receiver.

[0105] The spatial layer mapping component 945, the frequency tone mapping component 950, and the codeword mapping component 955 can map the code block data to provide pipeline decoding of the code block data. In some cases, the spatial layer mapping component 945 can first map the interleaved code block data to one or more spatial layers within the same RE. The frequency tone mapping component 950 can secondly map the interleaved code block data to a set of REs within an OFDM codeword. The frequency tone mapping component 955 can again map the interleaved code block data to a set of OFDM codewords. After mapping, two-stage interleaving can be used to generate interleaved code block data and interleaved OFDM symbol data (e.g., in response to the receiving party indicating that it can support two-stage interleaving).

[0106] The receiver capability component 960 can receive an indication from the receiver whether the receiver can support two-phase channel interleaving. For example, this indication can be received as part of RRC signaling during connection establishment.

[0107] Traffic identification component 965 can determine whether the code block data comprises broadcast data to be sent to a set of recipients or unicast data to be sent to a single recipient, and bypass dual-phase interleaving when the code block data comprises broadcast data.

[0108] Figure 10 A diagram of a system 1000 including a device 1005 supporting dual-stage channel interleaving for data transmission according to aspects of the present disclosure is shown. The device 1005 may be as described above, for example, with reference to Figure 1 、 7 8 and 1005. The device 1005 may include components for two-way voice and data communication, including components for transmitting and receiving communications, including a base station communication manager 1015, a processor 1020, a memory 1025, software 1030, a transceiver 1035, an antenna 1040, a network communication manager 1045, and a base station communication manager 1050. These components may be in electronic communication via one or more buses (e.g., bus 1010). The device 1000 may communicate wirelessly with one or more UEs 115.

[0109] Base station communication manager 1015 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in coordination with other base stations 105. For example, base station communication manager 1015 may coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, base station communication manager 1015 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0110] The processor 1020 may include an intelligent hardware device (e.g., a general-purpose processor, a digital signal processor (DSP), a central processing unit (CPU), a microcontroller, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1020 may be configured to operate the memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 1020. The processor 1020 may be configured to execute computer-readable instructions stored in the memory to perform various functions (e.g., functions or tasks that support dual-phase channel interleaving for data transmission).

[0111] The memory 1025 may include random access memory (RAM) and read-only memory (ROM). The memory 1025 may store computer-readable, computer-executable software 1030 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 1025 may include, among other things, a basic input / output system (BIOS), which may control basic hardware and / or software operations, such as interaction with peripheral components or devices.

[0112] The software 1030 may include code for implementing various aspects of the present disclosure, including code for supporting dual-phase channel interleaving for data transmission. The software 1030 may be stored in a non-transitory computer-readable medium (such as system memory or other memory). In some cases, the software 1030 may not be directly executed by a processor, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0113] The transceiver 1035 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1035 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1035 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and demodulate packets received from the antenna.

[0114] In some cases, a wireless device may include a single antenna 1040. However, in some cases, the device may have more than one antenna 1040, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0115] The network communications manager 1045 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1045 may manage the transmission of data communications for client devices, such as one or more UEs 115.

[0116] Base station communication manager 1050 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in coordination with other base stations 105. For example, base station communication manager 1050 may coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, base station communication manager 1050 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0117] Figure 11 A diagram 1100 illustrates a wireless device 1105 that supports dual-stage channel interleaving for data transmission in accordance with various aspects of the present disclosure. The wireless device 1105 may be a wireless device 1105 configured as described with reference to FIG. Figure 1 Examples of various aspects of the UE 115 are described. The wireless device 1105 may include a receiver 1110, a UE communication manager 1115, and a transmitter 1120. The wireless device 1105 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0118] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to two-stage channel interleaving for data transmission, etc.). The information may be passed to other components of the device. The receiver 1110 may be a reference Figure 14 Examples of aspects of the described transceiver 1435. In some examples, the receiver 1110 may receive a set of OFDM symbols for a transmitted code block.

[0119] UE communication manager 1115 may be a reference Figure 14Examples of aspects of the UE communication manager 1415 are described. The UE communication manager 1415 may demodulate a set of OFDM symbols to obtain interleaved OFDM symbol data for the set of OFDM symbols, deinterleave the interleaved OFDM symbol data for the set of OFDM symbols to obtain deinterleaved OFDM symbol data for the set of OFDM symbols, concatenate the deinterleaved OFDM symbol data for the set of OFDM symbols for a transmitted code block to obtain interleaved code block data for the transmitted code block, deinterleave the interleaved code block data to obtain deinterleaved code block data, and decode the deinterleaved code block data. In some examples, the UE communication manager 1115 may demodulate the set of OFDM symbols to obtain interleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols, deinterleave the interleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols to obtain deinterleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols, concatenate the deinterleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols for a transmitted code block to obtain interleaved code block data for the transmitted code block, deinterleave the interleaved code block data to obtain deinterleaved code block data, and decode the deinterleaved code block data.

[0120] The transmitter 1120 may transmit signals generated by other components of the device. In some examples, the transmitter 1120 may be co-located with the receiver 1110 in a transceiver module. For example, the transmitter 1120 may be a reference Figure 14 Examples of aspects of the described transceiver 1435. The transmitter 1120 may include a single antenna, or it may include a collection of antennas.

[0121] Figure 12 A diagram 1200 illustrates a wireless device 1205 that supports dual-stage channel interleaving for data transmission in accordance with various aspects of the present disclosure. The wireless device 1205 may be a wireless device 1205 as described with reference to FIG. Figure 1 and 11 10. Examples of various aspects of the wireless device 1105 or UE 115 are described. The wireless device 1205 may include a receiver 1210, a UE communication manager 1215, and a transmitter 1220. The wireless device 1205 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0122] The receiver 1210 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to two-stage channel interleaving for data transmission, etc.). The information may be passed to other components of the device. The receiver 1210 may be a reference Figure 14Examples of various aspects of the transceiver 1435 are described.

[0123] UE communication manager 1215 may be a reference Figure 14 Examples of various aspects of the UE communication manager 1415 are described. The UE communication manager 1215 may also include a demodulation component 1225, a symbol data deinterleaver 1230, a concatenation component 1235, a code block deinterleaver 1240, and a code block decoder 1245.

[0124] The demodulation component 1225 can demodulate the set of OFDM symbols to obtain interleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols.

[0125] The symbol data deinterleaver 1230 may deinterleave the interleaved OFDM symbol data for the set of OFDM symbols to obtain deinterleaved OFDM symbol data. In some examples, the data deinterleaver 1230 may deinterleave the interleaved OFDM symbol data for all OFDM symbols in the set of OFDM symbols to obtain deinterleaved OFDM symbol data. For example, a linear deinterleaver may be used to perform this deinterleaving, although other types of deinterleavers may be used based on the interleaving type used for the interleaved OFDM symbol data, as described above.

[0126] The concatenation component 1235 may concatenate the deinterleaved OFDM symbol data for the set of OFDM symbols for the transmitted code block to obtain interleaved code block data for the transmitted code block. In some cases, the concatenation component 1235 may concatenate the deinterleaved OFDM symbol data for one or more OFDM symbols in the set of OFDM symbols for the transmitted code block to obtain interleaved code block data for the transmitted code block. For example, the concatenation may include adding the deinterleaved OFDM symbol data for the set of OFDM symbols to a buffer.

[0127] The code block deinterleaver 1240 may deinterleave the interleaved code block data to obtain deinterleaved code block data. For example, a linear deinterleaver may be used to perform this deinterleaving, although other types of deinterleavers may be used based on the interleaving type used for the interleaved OFDM symbol data, as described above. In some examples, when signaling does not indicate that the transmitted code block contains interleaved OFDM symbol data, the code block deinterleaver 1240 may perform a legacy single-stage deinterleaving of parity data within the transmitted code block.

[0128] The code block decoder 1245 can decode the deinterleaved code block data. In some cases, the interleaved code block data includes interleaved systematic data and parity check data within the code block, and the systematic data is evenly distributed throughout the interleaved code block data. In some cases, the interleaved code block data provides time diversity for the deinterleaved code block data, while the interleaved OFDM symbol data provides frequency diversity for the deinterleaved code block data. In some cases, decoding the deinterleaved code block data includes decoding turbo code coded data, LDPC coded data, or TBCC coded data. In some cases, decoding the deinterleaved code block data includes pipeline decoding of the code blocks.

[0129] The transmitter 1220 may transmit signals generated by other components of the device. In some examples, the transmitter 1220 may be co-located with the receiver 1210 in a transceiver module. For example, the transmitter 1220 may be a reference Figure 14 Examples of aspects of the described transceiver 1435. The transmitter 1220 may include a single antenna, or it may include a collection of antennas.

[0130] Figure 13 A diagram 1300 illustrates a UE communication manager 1315 supporting dual-phase channel interleaving for data transmission according to aspects of the present disclosure. The UE communication manager 1315 may be a reference Figure 11 、 12 14 and 15. The UE communication manager 1315 may include a demodulation component 1320, a symbol data deinterleaver 1325, a concatenation component 1330, a code block deinterleaver 1335, a code block decoder 1340, and a code block interleave identification component 1345. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0131] The demodulation component 1320 may demodulate the set of OFDM symbols to obtain interleaved OFDM symbol data for the set of OFDM symbols.In some cases, the set of OFDM symbols may be demodulated to obtain interleaved OFDM symbol data for at least one OFDM symbol in the set of OFDM symbols.

[0132] The symbol data deinterleaver 1325 can deinterleave the interleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols to obtain deinterleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols. For example, a linear deinterleaver can be used to perform this deinterleaving, although other types of deinterleavers can be used based on the interleaving type used for the interleaved OFDM symbol data as described above.

[0133] The concatenation component 1330 can concatenate the deinterleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols of the transmitted code block to obtain interleaved code block data for the transmitted code block. For example, the concatenation can include adding the deinterleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols to a buffer.

[0134] The code block deinterleaver 1335 can deinterleave the interleaved code block data to obtain deinterleaved code block data. In examples where signaling does not indicate that the transmitted code block contains interleaved OFDM symbol data, the code block deinterleaver 1335 can perform a conventional single-stage deinterleaving of the parity data within the transmitted code block. For example, a linear deinterleaver can be used to perform this deinterleaving, although other types of deinterleavers can be used based on the interleaving type used for the interleaved OFDM symbol data, as described above.

[0135] Code block decoder 1340 can decode the deinterleaved code block data. In some cases, the interleaved code block data includes interleaved systematic data and parity data within the code block, and the systematic data is evenly distributed throughout the interleaved code block data. In some cases, the interleaved code block data provides time diversity for the deinterleaved code block data, while the interleaved OFDM symbol data provides frequency diversity for the deinterleaved code block data. In some cases, decoding the deinterleaved code block data includes decoding turbo code coded data, LDPC coded data, or TBCC coded data. In some cases, decoding the deinterleaved code block data includes pipeline decoding of the code blocks.

[0136] The symbol interleaving identification component 1345 may transmit an indication indicating the capability of supporting two-stage channel interleaving to the transmitter of the transmitted code block, and receive signaling indicating whether the transmitted code block includes interleaved code block data and interleaved OFDM symbol data.

[0137] Figure 14 A diagram 1400 of a system including a device 1405 supporting dual-stage channel interleaving for data transmission according to aspects of the present disclosure is shown. The device 1405 may be, for example, the device described above with reference to Figure 1 Examples of components of the UE 115 described herein may include or include these components. Device 1405 may include components for two-way voice and data communication, including components for transmitting and receiving communications, including a UE communication manager 1415, a processor 1420, memory 1425, software 1430, a transceiver 1435, an antenna 1440, and an I / O controller 1445. These components may be in electronic communication via one or more buses (e.g., bus 1410). Device 1400 may communicate wirelessly with one or more base stations 105.

[0138] Processor 1420 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1420 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into processor 1420. Processor 1420 may be configured to execute computer-readable instructions stored in memory to perform various functions (e.g., functions or tasks supporting dual-phase channel interleaving for data transmission). 1420.

[0139] Memory 1425 may include RAM and ROM. Memory 1425 may store computer-readable, computer-executable software 1430 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 1425 may include, among other things, BIOS, which may control basic hardware and / or software operations, such as interaction with peripheral components or devices.

[0140] The software 1430 may include code for implementing various aspects of the present disclosure, including code for supporting dual-phase channel interleaving for data transmission. The software 1430 may be stored in a non-transitory computer-readable medium (such as system memory or other memory). In some cases, the software 1430 may not be directly executed by a processor, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0141] The transceiver 1435 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1435 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1435 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and demodulate packets received from the antenna.

[0142] In some cases, a wireless device may include a single antenna 1440. However, in some cases, the device may have more than one antenna 1440, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.

[0143] I / O controller 1445 can manage input and output signals for device 1405. I / O controller 1445 can additionally or alternatively manage peripheral devices that are not integrated into device 1405. In some cases, I / O controller 1445 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1445 can utilize an operating system, such as or another known operating system.

[0144] Figure 15 A flow chart illustrating a method 1500 for dual-stage channel interleaving for data transmission according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a base station 105, a UE 115, or components thereof as described herein. For example, the operations of the method 1500 may be implemented by reference to Figures 7 to 10 In some examples, the base station 105 or UE 115 may execute a set of codes for controlling the functional elements of the device to perform the functions described below. Additionally or alternatively, the base station 105 or UE 115 may use dedicated hardware to perform aspects of the functions described below.

[0145] At block 1505, the base station 105 or the UE 115 may identify code block data to be transmitted to the recipient in the code block. The operation of block 1505 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1505 may be performed as described with reference to Figures 7 to 10 The code block encoder described is performed.

[0146] At block 1510, the base station 105 or the UE 115 may interleave the code block data to generate interleaved code block data. The operation of block 1510 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1510 may be performed as described with reference to Figures 7 to 10 The code block interleaver described is performed.

[0147] At block 1515, the base station 105 or the UE 115 may sequentially concatenate the interleaved code block data from different code blocks. The operation of block 1515 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1515 may be performed as described with reference to Figures 7 to 10 The described cascade components are executed.

[0148] At block 1520, the base station 105 or UE 115 may sequentially allocate the concatenated interleaved code block data into OFDM symbols. The operation of block 1520 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1520 may be performed as described with reference to Figures 7 to 10 The described resource allocation components are executed.

[0149] At block 1525, the base station 105 or UE 115 may interleave the concatenated interleaved code block data assigned to each OFDM symbol to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol. The operation of block 1525 may be performed according to the reference Figures 1 to 6In some examples, aspects of the operations of block 1525 may be performed as described with reference to Figures 7 to 10 This is performed using the symbol data interleaver described.

[0150] At block 1530, the base station 105 or the UE 115 may transmit the OFDM symbol to the recipient. The operation of block 1530 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1530 may be performed as described with reference to Figures 7 to 10 The transmitter described is implemented.

[0151] Figure 16 A flow chart illustrating a method 1600 for dual-stage channel interleaving of data transmission according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by the base station 105 or components thereof as described herein. For example, the operations of the method 1600 may be implemented by reference to Figures 7 to 10 In some examples, the base station 105 may execute a set of codes for controlling the functional elements of the device to perform the functions described below. Additionally or alternatively, the base station 105 may use dedicated hardware to perform various aspects of the functions described below.

[0152] At block 1605, the base station 105 may allocate the interleaved code block data from the plurality of code blocks into a set of OFDM symbols. The operations of block 1605 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1605 may be performed as described with reference to Figures 7 to 10 The described resource allocation components are executed.

[0153] At block 1610, the base station 105 may interleave associated portions of the interleaved code block data for each OFDM symbol in the set of OFDM symbols to generate interleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols. The operations of block 1610 may be performed according to reference Figures 1 to 6 In some examples, aspects of the operations of block 1610 may be performed as described with reference to Figures 7 to 10 This is performed using the symbol data interleaver described.

[0154] At block 1615, the base station 105 may transmit the set of OFDM symbols of the code block to the recipient. The operation of block 1615 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1615 may be performed as described with reference to Figures 7 to 10 The transmitter described is implemented.

[0155] At block 1620, the base station 105 may first map the interleaved code block data to one or more spatial layers within the same RE. The operations of block 1620 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1620 may be performed as described with reference to Figures 7 to 10 The described spatial layer mapping component is performed.

[0156] At block 1625, the base station 105 may then map the interleaved code block data to a plurality of REs within an OFDM symbol. The operation of block 1625 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1625 may be performed as described with reference to Figures 7 to 10 The frequency mapping component described is performed.

[0157] At block 1630, the base station 105 may thirdly map the interleaved code block data to a plurality of OFDM symbols. The operations of block 1630 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1630 may be performed as described with reference to Figures 7 to 10 The codeword mapping component described is used to perform.

[0158] Figure 17 A flow chart illustrating a method 1700 for dual-stage channel interleaving of data transmission according to aspects of the present disclosure is shown. The operations of the method 1700 may be implemented by the base station 105 or components thereof as described herein. For example, the operations of the method 1700 may be implemented by reference to Figures 7 to 10 In some examples, the base station 105 may execute a set of codes for controlling the functional elements of the device to perform the functions described below. Additionally or alternatively, the base station 105 may use dedicated hardware to perform various aspects of the functions described below.

[0159] At block 1705, the base station 105 may receive an indication from the receiver as to whether the receiver is capable of supporting two-phase channel interleaving. Figures 1 to 6 In some examples, aspects of the operations of block 1705 may be performed as described with reference to Figures 7 to 10 The described receiver capability component is executed.

[0160] At block 1710, the base station 105 may perform two-stage interleaving to generate interleaved code block data and interleaved OFDM symbol data in response to the receiver indicating that it can support two-stage interleaving. The operations of block 1710 may be performed according to reference Figures 1 to 6 In some examples, aspects of the operations of block 1710 may be performed as described with reference to Figures 7 to 10 The codeword mapping component described is used to perform.

[0161] Figure 18 A flow chart illustrating a method 1800 for dual-stage channel interleaving of data transmission according to aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by the base station 105 or components thereof as described herein. For example, the operations of the method 1800 may be implemented by reference to Figures 7 to 10 In some examples, the base station 105 may execute a set of codes for controlling the functional elements of the device to perform the functions described below. Additionally or alternatively, the base station 105 may use dedicated hardware to perform various aspects of the functions described below.

[0162] At block 1805, the base station 105 may identify code block data to be transmitted to the recipient in the code block. The operations of block 1805 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1805 may be performed as described with reference to Figures 7 to 10 The code block encoder described is performed.

[0163] At block 1810, the base station 105 may determine whether the code block data includes broadcast data to be transmitted to multiple recipients or unicast data to be transmitted to a single recipient. The operations of block 1810 may be based on reference to Figures 1 to 6 In some examples, aspects of the operations of block 1810 may be performed as described with reference to Figures 7 to 10 The described traffic identification component is performed.

[0164] At block 1815, when the code block data includes unicast data, the base station 105 may perform two-stage channel interleaving to generate interleaved code block data and interleaved OFDM symbol data. The operations of block 1815 may be performed according to reference Figures 1 to 6 In some examples, aspects of the operations of block 1815 may be performed as described with reference to Figures 7 to 10 This is performed using the symbol data interleaver described.

[0165] At block 1820, when the code block data includes broadcast data, the base station 105 may bypass interleaving to generate interleaved code block data and interleaved OFDM symbol data. The operations of block 1820 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1820 may be performed as described with reference to Figures 7 to 10 The described traffic identification component is performed.

[0166] Figure 19 A flow chart illustrating a method 1900 for dual-stage channel interleaving of data transmission according to aspects of the present disclosure is shown. The operations of the method 1900 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of the method 1900 may be implemented by a UE 115 or components thereof as described herein. Figures 11 to 14 In some examples, the UE 115 may execute a set of codes for controlling the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 may use dedicated hardware to perform various aspects of the functions described below.

[0167] At block 1905, the UE 115 may receive a plurality of OFDM symbols of the transmitted code block. The operation of block 1905 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1905 may be performed as described with reference to Figures 11 to 14 The receiver described is implemented.

[0168] At block 1910, the UE 115 may demodulate the plurality of OFDM symbols to obtain interleaved OFDM symbol data for each of the plurality of OFDM symbols. The operations of block 1910 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1910 may be performed as described with reference to Figures 11 to 14 The demodulation components described are performed.

[0169] At block 1915, the UE 115 may deinterleave the interleaved OFDM symbol data for each OFDM symbol in the plurality of OFDM symbols to obtain deinterleaved OFDM symbol data for each OFDM symbol in the plurality of OFDM symbols. The operations of block 1915 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1915 may be performed as described with reference to Figures 11 to 14 This is performed using the symbol data deinterleaver described.

[0170] At block 1920, the UE 115 may concatenate the deinterleaved OFDM symbol data for each OFDM symbol in the plurality of OFDM symbols of the transmitted code block to obtain interleaved code block data for the transmitted code block. The operation of block 1920 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1920 may be performed as described with reference to Figures 11 to 14 The described cascade components are executed.

[0171] At block 1925, the UE 115 may deinterleave the interleaved code block data to obtain deinterleaved code block data. The operation of block 1925 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1925 may be performed as described with reference to Figures 11 to 14 The code block deinterleaver described is performed.

[0172] At block 1930, the UE 115 may decode the deinterleaved code block data. The operations of block 1930 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 1930 may be performed as described with reference to Figures 11 to 14 The code block decoder described is performed.

[0173] Figure 20 1 is a flow chart illustrating a method 2000 for dual-stage channel interleaving for data transmission according to aspects of the present disclosure. The operations of the method 2000 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 2000 may be implemented by reference to Figures 11 to 14 In some examples, the UE 115 may execute a set of codes for controlling the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 may use dedicated hardware to perform various aspects of the functions described below.

[0174] At block 2005, UE 115 may transmit an indication indicating the capability to support two-stage channel interleaving to the transmitter of the transmitted code block. The operation of block 2005 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2005 may be performed as described with reference to Figures 11 to 14 The described symbol interleaving is performed by the identification component.

[0175] At block 2010, the UE 115 may receive a set of OFDM symbols for a transmitted code block. The operations of block 2010 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2010 may be performed as described with reference to Figures 11 to 14 The receiver described is implemented.

[0176] At block 2015, the UE 115 may demodulate the set of OFDM symbols to obtain interleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols. The operations of block 2015 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2015 may be performed as described with reference to Figures 11 to 14 The demodulation components described are performed.

[0177] At block 2020, the UE 115 may deinterleave the interleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols to obtain deinterleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols. The operations of block 2020 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2020 may be performed as described with reference to Figures 11 to 14 This is performed using the symbol data deinterleaver described.

[0178] At block 2025, the UE 115 may concatenate the deinterleaved OFDM symbol data for each OFDM symbol in the set of OFDM symbols for the transmitted code block to obtain interleaved code block data for the transmitted code block. The operation of block 2025 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2025 may be performed as described with reference to Figures 11 to 14 The described cascade components are executed.

[0179] At block 2030, the UE 115 may deinterleave the interleaved code block data to obtain deinterleaved code block data. The operations of block 2030 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2030 may be performed as described with reference to Figures 11 to 14 The code block deinterleaver described is performed.

[0180] At block 2035, the UE 115 may decode the deinterleaved code block data. The operations of block 2035 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2035 may be performed as described with reference to Figures 11 to 14 The code block decoder described is performed.

[0181] Figure 21 1 is a flow chart illustrating a method 2100 for dual-stage channel interleaving for data transmission according to aspects of the present disclosure. The operations of the method 2100 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 2100 may be implemented by reference to Figures 11 to 14 In some examples, the UE 115 may execute a set of codes for controlling the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 may use dedicated hardware to perform various aspects of the functions described below.

[0182] At block 2105, the UE 115 may transmit an indication indicating the capability to support two-stage channel interleaving to the transmitter of the transmitted code block. The operation of block 2105 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2105 may be performed as described with reference to Figures 11 to 14 The described symbol interleaving is performed by the identification component.

[0183] At block 2110, the UE 115 may receive signaling indicating whether the transmitted code block includes two-stage interleaving with interleaved code block data and interleaved OFDM symbol data. The operation of block 2110 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2110 may be performed as described with reference to Figures 11 to 14 The described symbol interleaving is performed by the identification component.

[0184] At block 2115, when the signaling does not indicate that the transmitted code block contains interleaved OFDM symbol data, the UE 115 may perform legacy single-stage deinterleaving of parity data within the transmitted code block. The operation of block 2115 may be performed according to reference Figures 1 to 6 In some examples, aspects of the operations of block 2115 may be performed as described with reference to Figures 11 to 14 The code block deinterleaver described is performed.

[0185] At block 2120, when the signaling does indicate that the transmitted code block contains interleaved OFDM symbol data, the UE 115 may perform deinterleaving of the interleaved OFDM symbol data, concatenating and deinterleaving of the interleaved code block data. The operations of block 2120 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2120 may be performed as described with reference to Figures 11 to 14 This is performed using the symbol data deinterleaver described.

[0186] Figure 22 A flow chart illustrating a method 2200 for dual-stage channel interleaving of data transmission according to aspects of the present disclosure is shown. The operations of the method 2200 may be implemented by the base station 105 or components thereof as described herein. For example, the operations of the method 2200 may be implemented by reference to Figures 7 to 10 In some examples, the base station 105 may execute a set of codes for controlling the functional elements of the device to perform the functions described below. Additionally or alternatively, the base station 105 may use dedicated hardware to perform various aspects of the functions described below.

[0187] At block 2205, the base station 105 may identify code block data to be transmitted to the recipient in the code block. The operations of block 2205 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2205 may be performed as described with reference to Figures 7 to 10 The code block encoder described is performed.

[0188] At block 2210, the base station 105 may allocate the code block data into a plurality of OFDM symbols. The operation of block 2210 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2210 may be performed as described with reference to Figures 7 to 10 The described resource allocation components are executed.

[0189] At block 2215, the base station 105 may interleave the code block data allocated to each of the OFDM symbols to generate interleaved OFDM symbol data for each of the OFDM symbols. The operations of block 2215 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2215 may be performed as described with reference to Figures 7 to 10 This is performed using the symbol data interleaver described.

[0190] At block 2220, the base station 105 may transmit the OFDM symbol to the recipient. The operation of block 2220 may be performed according to the reference Figures 1 to 6 In some examples, aspects of the operations of block 2220 may be performed as described with reference to Figures 7 to 10 The transmitter described is implemented.

[0191] It should be noted that the above methods 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.

[0192] The techniques described herein can be used in various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, single-carrier frequency division multiple access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and the like. CDMA2000 covers IS-2000, IS-95, and IS-856 standards. IS-2000 versions are often referred to as CDMA2000 1X, 1X, and the like. IS-856 (TIA-856) is often referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), and the like. UTRA includes Wideband CDMA (WCDMA) and other CDMA variants. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM).

[0193] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (WiFi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDM. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). 3GPP LTE and Advanced LTE (LTE-A) are new versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. Although aspects of an LTE system may be described for example purposes, and LTE terminology is used in much of the above description, the techniques described herein can also be applied to applications other than LTE.

[0194] In LTE / LTE-A networks (including such networks described herein), the term eNB may be used, for example, to describe a base station. One or more wireless communication systems described herein may include heterogeneous LTE / LTE-A networks in which different types of eNBs provide coverage for various geographic regions. For example, each eNB or base station may provide communication coverage for a macro cell, a small cell, or other types of cells. Depending on the context, the term "cell" may be used to describe a base station, a carrier or component carrier associated with a base station, or a coverage area (e.g., a sector, etc.) of a carrier or base station.

[0195] A base station may include or may be referred to by those skilled in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a Node B, an eNB, a Home Node B, a Home Evolved Node B, or some other suitable term. The geographic coverage area of ​​a base station may be divided into sectors that constitute a portion of the coverage area. One or more wireless communication systems described herein may include different types of base stations (e.g., macro or small cell base stations). The UEs described herein may be capable of communicating with various types of base stations and network equipment (including macro eNBs, small cell eNBs, relay base stations, etc.). There may be overlapping geographic coverage areas of different technologies.

[0196] A macro cell generally covers a relatively large geographic area (e.g., an area with a radius of several kilometers) and may allow unrestricted access by UEs with service subscriptions with a network provider. In contrast to a macro cell, a small cell is a low-power base station that may operate in the same or different frequency bands (e.g., licensed, unlicensed, etc.) as the macro cell. According to various examples, small cells may include pico cells, femto cells, and micro cells. A pico cell, for example, may cover a smaller geographic area and may allow unrestricted access by UEs with service subscriptions with a network provider. A femto cell may additionally or alternatively cover a smaller geographic area (e.g., a residence) and may provide restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of users in the residence, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (eg, two, three, four, etc.) cells (eg, component carriers). A UE may be able to communicate with various types of base stations and network equipment, including macro eNBs, small cell eNBs, relay base stations, etc.

[0197] One or more wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, each base station may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, each base station may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for either synchronous or asynchronous operation.

[0198] Downlink transmissions described herein may additionally or alternatively be referred to as forward link transmissions, and uplink transmissions may additionally or alternatively be referred to as reverse link transmissions. Each communication link described herein, such as including Figure 1 and 2 The wireless communication systems 100 and 200 may include one or more carriers, where each carrier may be a signal composed of multiple subcarriers (eg, waveform signals of different frequencies).

[0199] The description set forth herein in conjunction with the accompanying drawings describes example configurations and does not represent all examples that can be implemented or fall within the scope of the claims. The term "exemplary" as used herein means "serving as an example, instance, or illustration" and does not mean "better than" or "better than other examples." This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some instances, well-known structures and devices are shown in diagram form to avoid obscuring the concepts of the described examples.

[0200] The information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0201] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed with a general purpose processor, a DSP, an ASIC, an 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 the alternative, the processor may be any conventional 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, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0202] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, each function can be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations fall within the scope and spirit of this disclosure and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions can also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations. As used herein (including in the claims), the term "and / or" used in a listing of two or more items means that any of the listed items can be used alone, or any combination of two or more listed items can be used. For example, if a composition is described as comprising components A, B, and / or C, the composition can include 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. Similarly, as used herein (including in the claims), “or” used in a list of items (e.g., in a list of items followed by a phrase such as “at least one of” or “one or more of”) indicates a disjunctive list so that, for example, a list “at least one of A, B, or C” means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0203] As used herein, the phrase "based on" should not be read as referring to a closed set of conditions. For example, an exemplary step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be read in the same manner as the phrase "based at least in part on."

[0204] Computer-readable media include both non-transient computer storage media and communication media, and include any media that facilitates a computer program to be transferred from one place to another. Non-transient storage media can be any available medium that can be accessed by a general or special-purpose computer. As an example and not limitation, non-transient computer-readable media may include RAM, ROM, electrically erasable programmable read-only memory (EEPROM), compact disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage devices, or any other non-transient medium that can be used to carry or store the desired program code means of an instruction or data structure form and can be accessed by a general or special-purpose computer or a general or special-purpose processor. Any connection is also properly referred to as a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of medium. Disk and disc, as used herein, include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0205] The description herein is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication by a transmitting party, comprising: receiving, from a receiver, an indication of whether the receiver is capable of supporting two-phase channel interleaving; identifying code block data to be transmitted to the recipient in a code block; interleaving the code block data as a first step of two-stage channel interleaving to generate interleaved code block data; sequentially concatenating interleaved code block data from different code blocks; sequentially allocating the concatenated interleaved code block data into orthogonal frequency division multiplexing (OFDM) symbols; interleaving the concatenated interleaved code block data assigned to each OFDM symbol as a second step of two-stage channel interleaving to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol; and transmitting the OFDM symbols to the receiving party, in: If the indication indicates that the receiving side is capable of supporting two-stage channel interleaving, performing two-stage channel interleaving to generate the interleaved code block data and the interleaved OFDM symbol data; or If the indication indicates that the receiving side cannot support two-stage channel interleaving, performing single-stage channel interleaving instead of the first and second steps of two-stage channel interleaving, wherein the single-stage channel interleaving is configured to perform interleaving on parity data within the code block data, and wherein the method further comprises: determining whether the code block data includes broadcast data to be transmitted to multiple recipients or unicast data to be transmitted to a single recipient; When the code block data includes unicast data, performing two-stage channel interleaving to generate the interleaved code block data and the interleaved OFDM symbol data; and When the code block data includes broadcast data, two-stage channel interleaving used to generate the interleaved code block data and the interleaved OFDM symbol data is bypassed.

2. The method according to claim 1, wherein Interleaving the code block data includes: Interleaving the code block data includes interleaving systematic data and parity data within the code block data to provide a uniform distribution of the systematic data in time within the code block.

3. The method according to claim 1, wherein The interleaved code block data provides time diversity for the code block data, and the interleaved OFDM symbol data provides frequency diversity for the code block data.

4. The method according to claim 1, wherein The code block data includes turbo code coded data, low density parity check (LDPC) coded data, or tail biting convolutional code (TBCC) coded data.

5. The method of claim 1, further comprising: distributing the interleaved code block data from the plurality of code blocks into a plurality of other OFDM symbols; for the plurality of other OFDM symbols, interleaving associated portions of the interleaved code block data to generate interleaved OFDM symbol data for the plurality of other OFDM symbols; as well as The plurality of other OFDM symbols of the code block are transmitted to the receiver.

6. The method according to claim 5, wherein: The interleaving within the code block and the interleaving within the OFDM symbol allow for pipeline implementation of decoding the code block at the receiver.

7. The method according to claim 5, wherein: The allocation includes: identifying a resource allocation of radio resources for transmission of the code block, the resource allocation comprising an allocation of the plurality of OFDM symbols, a plurality of resource elements (REs) within each OFDM symbol, and a set of spatial layers within each RE; First, mapping the interleaved code block data to one or more spatial layers within the same RE; Secondly, mapping the interleaved code block data to a plurality of REs within an OFDM symbol; and Third, the interleaved code block data is mapped to the plurality of OFDM symbols.

8. A method for performing wireless communication by a receiving party, comprising: transmitting, to a transmitting party, an indication of whether the receiving party is capable of supporting two-phase channel interleaving; receiving a plurality of OFDM symbols of a transmitted code block; receiving signaling indicating whether a transmitted code block includes interleaved code block data and interleaved OFDM symbol data; demodulating the plurality of OFDM symbols to obtain interleaved OFDM symbol data for the plurality of OFDM symbols; deinterleaving the interleaved OFDM symbol data for the plurality of OFDM symbols to obtain deinterleaved OFDM symbol data for the plurality of OFDM symbols; concatenating the deinterleaved OFDM symbol data for the plurality of OFDM symbols of a transmitted code block to obtain interleaved code block data for the transmitted code block; Deinterleaving the interleaved code block data to obtain deinterleaved code block data; as well as decoding the deinterleaved code block data, Wherein, the method further comprises: When the signaling does not indicate that the transmitted code block includes interleaved OFDM symbol data, performing single-stage deinterleaving of parity data within the transmitted code block, wherein the deinterleaved code block data includes broadcast data transmitted to a plurality of receivers including the receiver; and When the signaling does indicate that the transmitted code block includes interleaved OFDM symbol data, deinterleaving the interleaved OFDM symbol data, concatenating and deinterleaving the interleaved code block data are performed, wherein the deinterleaved code block data includes unicast data transmitted to the receiver.

9. The method of claim 8, wherein: The interleaved code block data includes interleaved systematic data and parity data within the code block, and wherein the systematic data is evenly distributed throughout the interleaved code block data.

10. The method of claim 8, wherein: The interleaved code block data provides time diversity for the deinterleaved code block data, and the interleaved OFDM symbol data provides frequency diversity for the deinterleaved code block data.

11. The method of claim 8, wherein: Decoding the deinterleaved code block data includes decoding turbo code encoded data, low density parity check (LDPC) encoded data, or tail biting convolutional code (TBCC) encoded data.

12. The method of claim 8, wherein: Decoding the deinterleaved code block data includes pipeline decoding of the code block.

13. An apparatus for wireless communication, comprising: means for receiving, from a receiving party, an indication of whether the receiving party is capable of supporting two-phase channel interleaving; means for identifying code block data to be transmitted to said recipient in a code block; means for interleaving the code block data to generate interleaved code block data as a first step of two-stage channel interleaving; means for sequentially concatenating interleaved code block data from different code blocks; means for sequentially allocating the concatenated interleaved code block data into orthogonal frequency division multiplexing (OFDM) symbols; means for interleaving the concatenated interleaved code block data assigned to each OFDM symbol as a second step of two-stage channel interleaving to generate interleaved OFDM symbol data to be transmitted in each OFDM symbol; as well as means for transmitting the OFDM symbols to the recipient, in: If the indication indicates that the receiving side is capable of supporting two-stage channel interleaving, performing two-stage channel interleaving to generate the interleaved code block data and the interleaved OFDM symbol data; or If the indication indicates that the receiving side cannot support two-stage channel interleaving, performing single-stage channel interleaving without performing the first step and the second step of two-stage channel interleaving, wherein the single-stage channel interleaving is configured to perform interleaving on the parity data within the code block data, and The equipment further comprises: means for determining whether the code block data comprises broadcast data to be transmitted to a plurality of recipients or unicast data to be transmitted to a single recipient; means for performing two-stage channel interleaving to generate the interleaved code block data and the interleaved OFDM symbol data when the code block data comprises unicast data; and Means for bypassing two-stage channel interleaving for generating the interleaved code block data and the interleaved OFDM symbol data when the code block data includes broadcast data.

14. The apparatus of claim 13, further comprising: means for interleaving systematic data and parity data within the code block data to provide a uniform distribution of the systematic data in time within the code block.

15. The apparatus of claim 13, wherein: The interleaved code block data provides time diversity for the code block data, and the interleaved OFDM symbol data provides frequency diversity for the code block data.

16. The apparatus of claim 13, wherein: The code block data includes turbo code coded data, low density parity check (LDPC) coded data, or tail biting convolutional code (TBCC) coded data.

17. The apparatus of claim 13, further comprising: means for distributing the interleaved code block data from the plurality of code blocks into a plurality of other OFDM symbols; means for interleaving associated portions of the interleaved code block data for the plurality of other OFDM symbols to generate interleaved OFDM symbol data for the plurality of other OFDM symbols; as well as means for transmitting the plurality of other OFDM symbols of the code block to the recipient.

18. The apparatus of claim 17, wherein: The interleaving within the code block and the interleaving within the OFDM symbol allow for pipeline implementation of decoding the code block at the receiver.

19. An apparatus for wireless communication, comprising: means for transmitting to a transmitting party an indication of whether the equipment is capable of supporting two-phase channel interleaving; means for receiving a plurality of OFDM symbols of a transmitted code block; means for receiving signaling indicating whether a transmitted code block includes interleaved code block data and interleaved OFDM symbol data; means for demodulating the plurality of OFDM symbols to obtain interleaved OFDM symbol data for the plurality of OFDM symbols; means for deinterleaving the interleaved OFDM symbol data for the plurality of OFDM symbols to obtain deinterleaved OFDM symbol data for the plurality of OFDM symbols; means for concatenating the deinterleaved OFDM symbol data for the plurality of OFDM symbols of a transmitted code block to obtain interleaved code block data for the transmitted code block; means for deinterleaving the interleaved code block data to obtain deinterleaved code block data; means for decoding the deinterleaved code block data; means for performing single-stage deinterleaving of parity data within a transmitted code block when the signaling does not indicate that the transmitted code block includes interleaved OFDM symbol data, wherein the deinterleaved code block data comprises broadcast data transmitted to a plurality of recipients including the apparatus; as well as means for performing deinterleaving the interleaved OFDM symbol data, concatenating and deinterleaving the interleaved code block data when the signaling does indicate that the transmitted code block includes interleaved OFDM symbol data, wherein the deinterleaved code block data comprises unicast data transmitted to the equipment.

20. The apparatus of claim 19, wherein: The interleaved code block data includes interleaved systematic data and parity data within the code block, and wherein the systematic data is evenly distributed throughout the interleaved code block data.

21. The apparatus of claim 19, wherein: Means for decoding the deinterleaved code block data include means for pipeline decoding of the code block.

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