Bandwidth Part (BWP) Configuration for Full Duplex
By configuring multiple full-duplex frequency-based BWPs and allocating these configurations, the bandwidth configuration problem of wireless communication systems in full-duplex communication is solved, achieving higher communication performance and lower interference.
Patent Information
- Application Number
- CN202180023536.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-04-02
- Filing Date
- 2021-03-30
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2041-03-30
AI Technical Summary
Existing wireless communication systems have difficulty effectively configuring the bandwidth portion (BWP) in full-duplex communication, resulting in interference and performance degradation, especially in multi-user and multi-base station environments.
A method is provided to allocate the BWP configurations to support full duplex operation by configuring a plurality of full duplex frequency-based BWPs, including allocating bandwidth to the communication device during FD operation and providing BWP configuration information through signaling indication.
Through this method, bandwidth can be effectively managed, interference can be reduced, communication performance can be improved, and mobile broadband access needs in multi-user and multi-base station environments can be met.
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Figure CN115918024B_ABST
Abstract
Description
[0001] Related Applications
[0002] This patent application claims the benefit of priority to U.S. Non - Provisional Application No. 16 / 838,713, filed on April 2, 2020, entitled "BANDWIDTH PART (BWP) CONFIGURATION FOR FULL DUPLEX", which is assigned to the assignee of the present application and is hereby incorporated by reference in its entirety. Technical Field
[0003] Broadly speaking, aspects of the present disclosure relate to wireless communication systems, and more particularly, to bandwidth part (BWP) configuration for full - duplex communication. Certain embodiments of the techniques discussed below may implement and provide BWP configuration based on full - duplex frequencies (e.g., including multiple half - duplex - frequency - based BWPs that include subsets of the bandwidths corresponding to the defined BWPs). Background Art
[0004] Wireless communication networks are widely deployed to provide various types of communication services such as voice, video, packet data, messaging, broadcasting, etc. These wireless networks may be multi - access networks capable of supporting multiple users by sharing available network resources. Such networks (commonly multi - access networks) support communication for multiple users by sharing available network resources.
[0005] A wireless communication network may include multiple base stations or Node Bs that can support communication for multiple user equipments (UEs). The UEs may communicate with the base stations via downlink and uplink. The downlink (or forward link) refers to the communication link from the base station to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the base station.
[0006] The base station may send data and control information to the UE on the downlink, and / or may receive data and control information from the UE on the uplink. On the downlink, transmissions from the base station may encounter interference caused by transmissions from neighboring base stations or from other radio frequency (RF) transmitters. On the uplink, transmissions from the UE may encounter interference from uplink transmissions of other UEs communicating with neighboring base stations or from other wireless RF transmitters. Such interference may degrade the performance on both the downlink and the uplink.
[0007] As the demand for mobile broadband access continues to grow, the likelihood of interference and congested networks increases as more UEs access remote wireless communication networks and more short - range wireless systems are deployed in communities. Research and development continuously drive wireless technologies to not only meet the growing need for mobile broadband access but also enhance and strengthen the user experience of wireless communication. SUMMARY OF THE INVENTION
[0008] Some aspects of the present disclosure are outlined below to provide a basic understanding of the technologies discussed. This summary is not an extensive overview of all the expected features of the present disclosure, and is neither intended to identify the key or important elements of all aspects of the present disclosure, nor to depict the scope of any or all aspects of the present disclosure. Its sole purpose is to present some concepts of one or more aspects of the present disclosure in an overview form as a prelude to the more detailed description that follows.
[0009] In one aspect of the present disclosure, a method of wireless communication is provided. The method may include providing a first full-duplex (FD) frequency-based bandwidth part (BWP) configuration. The FD frequency-based BWP configuration may include a plurality of BWPs. A separate BWP among the plurality of BWPs may include a subset of the bandwidth of the corresponding defined BWP configured for FD operation. The method may further include allocating the first FD frequency-based BWP configuration during FD operation to configure one or more communication devices for communication.
[0010] In another aspect, another method of wireless communication is provided. Such method may include allocating an FD BWP configuration to one or more communication devices for communication during FD communication. The method may further include signaling an indication of the configuration allocated to the one or more communication devices. The indication may include information (e.g., control or data) to indicate to the one or more communication devices the first FD frequency-based BWP configuration and / or the plurality of BWPs. One or more of the BWPs may include a subset of the bandwidth, and the subset of the bandwidth may correspond to the defined BWP.
[0011] In an additional aspect of the present disclosure, an apparatus configured for wireless communication is provided. The apparatus may include means for providing an FD frequency-based BWP configuration. The FD frequency-based BWP configuration may include a plurality of BWPs. A separate BWP among the plurality of BWPs may include a subset of the bandwidth of the corresponding defined BWP configured for FD operation. The apparatus may further include means for allocating the first FD frequency-based BWP configuration during FD operation to configure one or more communication devices for communication.
[0012] In additional aspects of the present disclosure, a non-transitory computer-readable medium having program code recorded thereon is provided. The program code may include code for providing a first FD frequency-based BWP configuration. The FD frequency-based BWP configuration may include a plurality of BWPs. A respective BWP of the plurality of BWPs may include a subset of the bandwidth of the corresponding defined BWP configured for FD operation. The program code may further include code for allocating the first FD frequency-based BWP configuration during FD operation to configure one or more communication devices for communication.
[0013] In additional aspects of the present disclosure, an apparatus configured for wireless communication is provided. The apparatus includes: at least one processor, and a memory coupled to the processor. The processor may be configured to provide a first FD frequency-based BWP configuration. The FD frequency-based BWP configuration may include a plurality of BWPs. A respective BWP of the plurality of BWPs may include a subset of the bandwidth of the corresponding defined BWP configured for FD operation. The processor may further be configured to allocate the first FD frequency-based BWP configuration during FD operation to configure one or more communication devices for communication.
[0014] In another aspect, another wireless communication device is provided. Such a device may be configured to allocate an FD BWP configuration for communication to one or more communication devices during FD communication. The allocation may be via a communication interface (e.g., transceiver) of the device and a processor implementing one or more instructions. The device may further include a communication interface of the device that signals an indication of the allocated configuration to one or more communication devices. The indication may include information (e.g., control or data) for indicating to one or more communication devices a first full-duplex (FD) frequency-based bandwidth part (BWP) configuration and / or a plurality of BWPs. One or more of the BWPs may include a subset of the bandwidth, and the subset of the bandwidth may correspond to a defined BWP.
[0015] In accordance with aspects of the present disclosure, the foregoing systems, methods, and apparatuses may be implemented in combination with one or more additional features, such as the following features, individually or in combination. For example, the foregoing systems, methods, and apparatuses may include at least one BWP in a separate BWP providing a segmented BWP configuration having a discontinuous bandwidth portion. The foregoing systems, methods, and apparatuses may include multiple BWPs having a first BWP configuration and a second BWP configuration that do not overlap in frequency, the first BWP configuration including a first bandwidth of a downlink half-duplex (HD) BWP of a defined BWP, the second BWP configuration including a second bandwidth of an uplink HD BWP of the defined BWP, wherein at least one of the first bandwidth or the second bandwidth includes a subset of the corresponding one of the downlink HD BWP or the uplink HD BWP, and wherein allocating the first FD frequency-based BWP configuration for FD wireless communication includes allocating the first BWP configuration for the downlink of FD wireless communication and allocating the second BWP configuration for the uplink of FD wireless communication. The foregoing systems, methods, and apparatuses may include a downlink HD BWP of a defined BWP and an uplink HD BWP of the defined BWP that at least partially overlap in frequency, wherein the first bandwidth of the first BWP configuration and the second bandwidth of the second BWP configuration are non-overlapping portions of the downlink HD BWP and the uplink HD BWP of the defined BWP. The foregoing systems, methods, and apparatuses may include a downlink HD BWP of a defined BWP and an uplink HD BWP of the defined BWP that do not overlap in frequency, wherein the first bandwidth of the first BWP configuration and the second bandwidth of the second BWP configuration are non-overlapping portions of the downlink HD BWP and the uplink HD BWP of the defined BWP separated by a guard band, the guard band being at least partially defined by a subset bandwidth of the corresponding one of the downlink HD BWP or the uplink HD BWP. The foregoing systems, methods, and apparatuses may include providing a plurality of sets of uplink and downlink BWP pairs, each including a plurality of BWPs, wherein the first FD frequency-based BWP configuration is a set of uplink and downlink BWP pairs in the plurality of sets of uplink and downlink BWP pairs. The foregoing systems, methods, and apparatuses may include two or more sets of uplink and downlink BWP pairs in the plurality of sets of uplink and downlink BWP pairs, which are defined for the bandwidth of the downlink HD BWP of a defined BWP and the bandwidth of the uplink HD BWP of the BWP. The foregoing systems, methods, and apparatuses may include two or more sets of uplink and downlink BWP pairs defined for the bandwidths of the downlink HD BWP and the uplink HD BWP of a BWP, including a first set of uplink and downlink BWP pairs configured to support FD operation and a second set of uplink and downlink BWP pairs configured to support HD operation.The above systems, methods, and apparatuses may include two or more sets of uplink and downlink BWP pairs for the bandwidth definition of the downlink HD BWP and the uplink HD BWP for BWP, which extend the downlink BWP to at least a first BWP configuration configured to support FD operation and a second BWP configuration configured to support HD operation, and extend the uplink BWP to at least a third BWP configuration configured to support FD operation and a fourth BWP configuration configured to support HD operation. The above systems, methods, and apparatuses may include allocating a first FD frequency-based BWP configuration to allocate the first BWP configuration of the FD frequency-based BWP configuration to a communication device for the transmission of FD time slots or symbols, and allocating a second BWP configuration to the communication device for the transmission of HD time slots or symbols, wherein the transition between FD operation and HD operation is based on the duplex nature of the corresponding time slots or symbols. The above systems, methods, and apparatuses may include allocating a first FD frequency-based BWP configuration to allocate a first portion of the first BWP configuration of the first FD frequency-based BWP configuration to a first HD mode communication device communicating with an FD mode communication device, allocating a second portion of the first BWP configuration of the first FD frequency-based BWP configuration to a second HD mode communication device communicating with the FD mode communication device, and allocating at least a portion of the second BWP configuration of the FD frequency-based BWP configuration to a third HD mode communication device communicating with the FD mode communication device. The above systems, methods, and apparatuses may include allocating a first FD frequency-based BWP configuration to allocate a first portion of the first BWP configuration of the first FD frequency-based BWP configuration to a first HD mode communication device communicating with an FD mode communication device, allocating a second portion of the first BWP configuration of the first FD frequency-based BWP configuration to a first FD mode communication device communicating with the FD mode communication device, and allocating at least a portion of the second BWP configuration of the FD frequency-based BWP configuration to the first FD mode communication device.
[0016] In one aspect of the present disclosure, a method of wireless communication is provided. The method may include obtaining a first FD frequency-based BWP configuration. The FD frequency-based BWP configuration may include a plurality of BWPs. A separate BWP among the plurality of BWPs may include a subset of the bandwidth of the corresponding defined BWP configured for FD operation. The method may further include communicating, during FD operation, using the first one or more BWPs of the first FD frequency-based BWP configuration.
[0017] In additional aspects of the present disclosure, an apparatus configured for wireless communication is provided. The apparatus may include means for obtaining a first FD-frequency-based BWP configuration. The FD-frequency-based BWP configuration may include a plurality of BWPs. A respective BWP of the plurality of BWPs may include a subset of the bandwidth of the corresponding defined BWP configured for FD operation. The apparatus may further include means for communicating using the first one or more BWPs of the first FD-frequency-based BWP configuration during FD operation.
[0018] In additional aspects of the present disclosure, a non-transitory computer-readable medium having program code recorded thereon is provided. The program code may include code for obtaining a first FD-frequency-based BWP configuration. The FD-frequency-based BWP configuration may include a plurality of BWPs. A respective BWP of the plurality of BWPs may include a subset of the bandwidth of the corresponding defined BWP configured for FD operation. The program code may further include code for communicating using the first one or more BWPs of the first FD-frequency-based BWP configuration during FD operation.
[0019] In additional aspects of the present disclosure, an apparatus configured for wireless communication is provided. The apparatus includes: at least one processor, and a memory coupled to the processor. The processor may be configured to obtain a first FD-frequency-based BWP configuration. The FD-frequency-based BWP configuration may include a plurality of BWPs. A respective BWP of the plurality of BWPs may include a subset of the bandwidth of the corresponding defined BWP configured for FD operation. The processor may further be configured to communicate using the first one or more BWPs of the first FD-frequency-based BWP configuration during FD operation.
[0020] In accordance with aspects of the present disclosure, the foregoing systems, methods, and apparatuses may be implemented in combination with one or more additional features, such as the following features, individually or in combination. For example, the foregoing systems, methods, and apparatuses may include at least one BWP in a separate BWP having a segmented BWP configuration, the segmented BWP configuration having discontinuous bandwidth portions. The foregoing systems, methods, and apparatuses may include an FD frequency-based BWP configuration having a first BWP configuration and a second BWP configuration that do not overlap in frequency, the first BWP configuration including a first bandwidth of a downlink HD BWP of a defined BWP, the second BWP configuration including a second bandwidth of an uplink HD BWP of the defined BWP, wherein at least one of the first bandwidth or the second bandwidth includes a subset of the corresponding one of the downlink HD BWP or the uplink HD BWP. The foregoing systems, methods, and apparatuses may include a downlink HD BWP of a defined BWP and an uplink HD BWP of the defined BWP that at least partially overlap in frequency, wherein the first bandwidth of the first BWP configuration and the second bandwidth of the second BWP configuration are non-overlapping portions of the downlink HD BWP and the uplink HD BWP of the defined BWP. The foregoing systems, methods, and apparatuses may include a downlink HD BWP of a defined BWP and an uplink HD BWP of the defined BWP that do not overlap in frequency, wherein the first bandwidth of the first BWP configuration and the second bandwidth of the second BWP configuration are non-overlapping portions of the downlink HD BWP and the uplink HD BWP of the defined BWP separated by a guard band, the guard band being at least partially defined by a subset bandwidth of the corresponding one of the downlink HD BWP or the uplink HD BWP. The foregoing systems, methods, and apparatuses may include a first BWP configuration having a set of one uplink and downlink BWP pair among a plurality of sets of uplink and downlink BWP pairs, the set of uplink and downlink BWP pairs including a plurality of BWPs. The foregoing systems, methods, and apparatuses may include two or more sets of uplink and downlink BWP pairs, which are defined for the bandwidths of the downlink HD BWP and the uplink HD BWP of a defined BWP, the two or more sets of uplink and downlink BWP pairs including a first set of uplink and downlink BWP pairs configured to support FD operation and a second set of uplink and downlink BWP pairs configured to support HD operation.The above systems, methods, and apparatuses may include two or more sets of uplink and downlink BWP pairs, which are defined for the bandwidths of the downlink HD BWP and the uplink HD BWP of a defined BWP, extend the downlink BWP at least to a first BWP configuration configured to support FD operation and a second BWP configuration configured to support HD operation, and extend the uplink BWP at least to a third BWP configuration configured to support FD operation and a fourth BWP configuration configured to support HD operation. The above systems, methods, and apparatuses may include that communication using a first FD frequency-based BWP configuration during FD wireless communication operation is for the transmission of FD time slots or symbols, and communication using one or more second BWPs of a second BWP configuration during HD operation is for the transmission of HD time slots or symbols, wherein the transition between FD operation and HD operation is based on the duplex nature of the corresponding time slots or symbols. The above systems, methods, and apparatuses may include that after the BWP inactivity timer expires, default to the HD BWP configuration of the defined BWP.
[0021] After reading the following description of specific exemplary embodiments in conjunction with the accompanying drawings, other aspects, features, and embodiments will become apparent to those of ordinary skill in the art. Although features may be discussed with respect to some of the following embodiments and drawings, all embodiments may include one or more of the advantageous features discussed herein. In other words, although one or more embodiments may be discussed as having certain advantageous features, one or more of such features may also be used in accordance with each embodiment. Similarly, although the exemplary embodiments are discussed below as device, system, or method embodiments, these exemplary embodiments may be implemented in various devices, systems, and methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] A further understanding of the nature and advantages of the present disclosure can be realized by referring to the following drawings. In the drawings, like components or features may have the same reference numerals. Additionally, each of the same type of components may be distinguished by following the reference numeral with a dash and a second label that differentiates the similar components. If only the first reference numeral is used in the specification, the description applies to any one of the similar components having the same first reference numeral, regardless of the second reference numeral.
[0023] Figure 1 is a block diagram showing details of a wireless communication system according to some embodiments of the present disclosure.
[0024] Figure 2 is a block diagram conceptually showing the design of a base station and a UE configured according to some embodiments of the present disclosure.
[0025] Figures 3A - 3D Illustrates various configurations of duplex modes that can be utilized by a wireless communication station in accordance with some aspects of the present disclosure.
[0026] Figures 4A - 4C Illustrates an example of self-interference introduced by full-duplex wireless communication in accordance with some aspects of the present disclosure.
[0027] Figure 5A and 5B Illustrates an example of overlapping bandwidth with respect to a defined BWP in accordance with some aspects of the present disclosure.
[0028] Figure 5C and 5D Illustrates an example of non-overlapping bandwidth with respect to a defined BWP in accordance with some aspects of the present disclosure.
[0029] Figure 6A and 6B Illustrates an example of available bandwidth for full-duplex operation selected from defined downlink and uplink BWPs in accordance with some aspects of the present disclosure.
[0030] Figure 7 Illustrates an example of full-duplex operation implementing a BWP configuration based on full-duplex frequency in accordance with some aspects of the present disclosure.
[0031] Figure 8 and 9 Illustrates a set of uplink and downlink BWP pairs provided with respect to different defined downlink and uplink BWPs in accordance with some aspects of the present disclosure.
[0032] Figure 10A and 10B Illustrates an example in which BWP portions of a BWP configuration based on full-duplex frequency are allocated to multiple UEs in accordance with some aspects of the present disclosure.
[0033] Figure 11 Is a block diagram illustrating example blocks performed by a wireless communication device (such as, a base station) in accordance with some aspects of the present disclosure.
[0034] Figure 12 Is a block diagram illustrating example blocks performed by a wireless communication device (such as, a UE) in accordance with some aspects of the present disclosure.
[0035] Figure 13 Conceptually illustrates a block diagram of a design of a base station configured to implement a BWP configuration based on full-duplex frequency in accordance with some aspects of the present disclosure.
[0036] Figure 14FIG. 0 is a block diagram conceptually illustrating a design of a UE configured to implement full-duplex frequency-based BWP configuration in accordance with some aspects of the present disclosure. DETAILED DESCRIPTION
[0037] The following detailed description presented in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to limit the scope of the present disclosure. On the contrary, the detailed description includes specific details for the purpose of providing a thorough understanding of the inventive subject matter. It will be apparent to those skilled in the art that specific details are not required in every instance, and in some instances, well-known structures and components are shown in block diagram form for clarity of presentation.
[0038] Generally, the present disclosure relates to providing or participating in communication between two or more wireless devices in one or more wireless communication systems (also referred to as wireless communication networks). In various embodiments, the techniques and apparatus may be used in wireless communication networks, such as, for example, Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, Single-Carrier FDMA (SC-FDMA) networks, Long Term Evolution (LTE) networks, Global System for Mobile Communications (GSM) networks, Fifth Generation (5G) or New Radio (NR) networks (sometimes referred to as “5G NR” networks / systems / devices), and other communication networks. As used herein, the terms “network” and “system” may be used interchangeably.
[0039] For example, a CDMA network may implement radio technologies such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc. UTRA includes Wideband CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers the IS-2000, IS-95, and IS-856 standards.
[0040] A TDMA network can implement radio technologies such as, for example, GSM. 3GPP defines standards for the GSM EDGE (Enhanced Data Rates for GSM Evolution) Radio Access Network (RAN) (also denoted as GERAN). GERAN, and the network connecting base stations (e.g., Ater and Abis interfaces) to base station controllers (A interface, etc.) are the radio components of GSM / EDGE. The radio access network represents a component of the GSM network, through which telephone and packet data are routed from the Public Switched Telephone Network (PSTN) and the Internet to the user's mobile phone (also referred to as the user terminal or user equipment (UE)) and from the user's mobile phone to the PSTN and the Internet. The network of a mobile phone operator can include one or more GERANs. In the case of a UMTS / GSM network, the operator's network can be coupled to the Universal Terrestrial Radio Access Network (UTRAN). The operator network can also include one or more LTE networks, and / or one or more other networks. Various different network types can use different Radio Access Technologies (RATs) as well as Radio Access Networks (RANs).
[0041] An OFDMA network can implement radio technologies such as evolved UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE 802.20, flash-OFDM, etc. UTRA, E-UTRA, and Global System for Mobile Communications (GSM) are part of the Universal Mobile Telecommunications System (UMTS). Specifically, Long-Term Evolution (LTE) is a version of UMTS that uses E-UTRA. UTRA, E-UTRA, GSM, UMTS, and LTE are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP), and cdma2000 is described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2). These various radio technologies and standards are either known or under development. For example, the 3rd Generation Partnership Project (3GPP) is a cooperation among telecommunications association groups aiming to define globally applicable third-generation (3G) mobile phone specifications. 3GPP Long-Term Evolution (LTE) is a 3GPP plan aiming to improve the Universal Mobile Telecommunications System (UMTS) mobile phone standard. 3GPP can define specifications for next-generation mobile networks, mobile systems, and mobile devices. This disclosure is regarding aspects of shared access to the radio spectrum among networks employing some new and different radio access technologies or radio air interfaces, and the evolution of radio technologies from LTE, 4G, 5G, NR, and higher generations.
[0042] The 5G network is expected to enable diverse deployments, diverse spectrums, and diverse services and devices implemented using an OFDM-based unified air interface. To achieve these goals, in addition to developing new radio technologies for the 5G NR network, further enhancements to LTE and LTE-A are also considered. 5G NR will be able to expand to provide coverage for: (1) large-scale Internet of Things (IoT) with deep coverage having ultra-high density (e.g., ~1M nodes / km 2 ), ultra-low complexity (e.g., ~10s of bits / second), ultra-low energy (e.g., ~10+ years of battery life), and the ability to reach challenging locations; (2) mission-critical control including strong security for protecting sensitive personal, financial, or classified information, ultra-high reliability (e.g., ~99.9999% reliability), ultra-low latency (e.g., ~1ms), and users with a wide range of mobility or lack of mobility; and (3) enhanced mobile broadband including extremely high capacity (e.g., ~10 Tbps / km 2 ), extreme data rates (e.g., multi-Gbps rates, 100+ Mbps user experience rate), and deep awareness with advanced discovery and optimization.
[0043] 5G NR devices, networks, and systems can be implemented to use waveform features based on optimized OFDM. These features can include scalable digital schemes and transmission time intervals (TTIs); a common, flexible framework to efficiently multiplex services and features through dynamic, low-latency time-division duplex (TDD) / frequency-division duplex (FDD) designs; and advanced wireless technologies such as massive multiple-input multiple-output (MIMO), robust millimeter-wave (mmWave) transmission, advanced channel coding, and device-centric mobility. The scalability of digital schemes in 5G NR, through the scaling of subcarrier spacing, can efficiently handle diverse services in diverse spectrums and diverse deployments. For example, in various outdoor and macro-coverage deployments with FDD / TDD implementations below 3 GHz, a subcarrier spacing of 15 kHz can be adopted on bandwidths such as 1, 5, 10, 20 MHz, and the like. For various other outdoor and small-cell coverage deployments with TDD above 3 GHz, it can occur with a subcarrier spacing of 30 kHz on an 80 / 100 MHz bandwidth. For various other indoor broadband implementations, when using TDD on the unlicensed portion of the 5 GHz broadband, it can occur with a subcarrier spacing of 60 kHz on a 160 MHz bandwidth. Finally, for various deployments transmitting via mmWave components at 28 GHz TDD, it can occur with a subcarrier spacing of 120 kHz on a 500 MHz bandwidth.
[0044] The scalable numerology of 5G NR facilitates scalable TTIs for diverse latency and Quality of Service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. The efficient multiplexing of long and short TTIs allows transmissions to start at symbol boundaries. 5G NR also anticipates a self - contained integrated sub - frame design with uplink / downlink scheduling information, data, and acknowledgments in the same sub - frame. The self - contained integrated sub - frame supports communication in unlicensed or contention - based shared spectrum and can be flexibly configured on a per - cell basis to dynamically switch between uplink and downlink to meet current traffic demands for adaptive uplink / downlink.
[0045] For clarity, certain aspects of the apparatus and techniques may be described hereinafter with reference to exemplary LTE implementations or in an LTE - centric manner, and in parts of the description below, LTE terminology may be used as illustrative examples; however, the description is not intended to be limited to LTE applications. In fact, the present disclosure relates to shared access to the radio spectrum between networks employing different radio access technologies or radio air interfaces (e.g., the radio access technology or radio air interface of 5G NR).
[0046] Furthermore, it should be understood that in operation, a wireless communication network adapted in accordance with the concepts herein can operate using any combination of licensed or unlicensed spectrum (depending on load and availability). Thus, it will be apparent to those skilled in the art that the systems, apparatus, and methods described herein can be applied to other communication systems and applications beyond the specific examples provided.
[0047] While various aspects and embodiments are described herein with reference to illustrative examples, those skilled in the art will appreciate that additional implementations and use cases will arise in many other arrangements and scenarios. The innovations described herein can be implemented across many different platform types, devices, systems, shapes, sizes, packaging arrangements. For example, embodiments and / or uses can be generated via integrated chip embodiments and / or other non-module component-based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail / purchasing devices, medical devices, AI-enabled devices, etc.). While some examples may be specific to a use case or application or may not be specific to a use case or application, a wide variety of applicability of the innovations can also occur. The scope of implementations can range from chip-level or modular components to non-modular, non-chip-level implementations and further to aggregated, distributed, or OEM devices or systems incorporating one or more of the aspects. In some practical settings, devices incorporating the aspects and features may also necessarily include additional components and features for the implementation and practice of the claimed and described embodiments. The intent herein is that the innovations described herein can be practiced in a wide variety of implementations, including large / small devices, chip-level components, multi-component systems (e.g., RF chains, communication interfaces, processors), distributed arrangements, end-user devices, etc., of different sizes, shapes, and constitutions.
[0048] Figure 1 FIG. 100 shows a wireless network for communication according to some embodiments. The wireless network 100 may include, for example, a 5G wireless network. As recognized by those skilled in the art, Figure 1 components shown in FIG. 100 are likely to have relevant corresponding components in other network arrangements, including, for example, cellular-style network arrangements and non-cellular-style network arrangements (e.g., device-to-device or peer-to-peer or ad hoc network arrangements, etc.).
[0049] Figure 1The wireless network 100 shown in [Fig. 0] includes a plurality of base stations 105 and other network entities. A base station can be a station that communicates with a UE and can also be referred to as an evolved Node B (eNB), a next-generation eNB (gNB), an access point, etc. Each base station 105 can provide communication coverage for a specific geographical area. In 3GPP, depending on the context in which the term is used, the term "cell" can refer to the specific geographical coverage area of the base station and / or the base station subsystem serving that coverage area. In the implementation of the wireless network 100 herein, the base stations 105 can be associated with the same operator or different operators (e.g., the wireless network 100 can include multiple operator wireless networks), and can provide wireless communication using one or more of the same frequencies (e.g., one or more frequency bands in licensed spectrum, unlicensed spectrum, or a combination thereof) as neighboring cells. In some examples, an individual base station 105 or UE 115 can be operated by more than one network operation entity. In other examples, each base station 105 or UE 115 can be operated by a single network operation entity.
[0050] A base station can provide communication coverage for a macro cell or a small cell (e.g., a pico cell or a femto cell) and / or other types of cells. A macro cell generally covers a relatively large geographical area (e.g., with a radius of several kilometers) and can allow unrestricted access by UEs having a service subscription with the network provider. A small cell, such as a pico cell, generally covers a relatively small geographical area and can allow unrestricted access by UEs having a service subscription with the network provider. A small cell, such as a femto cell, generally also covers a relatively small geographical area (e.g., a residence) and, in addition to unrestricted access, can provide restricted access by UEs associated with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG), UEs for users in a residence, etc.). A base station for a macro cell can be referred to as a macro base station. A base station for a small cell can be referred to as a small cell base station, a pico base station, a femto base station, or a home base station. In Figure 1 the example shown, base stations 105d and 105e are conventional macro base stations, while base stations 105a - 105c are macro base stations implemented using one of 3-dimensional (3D), full-dimensional (FD), or massive MIMO. Base stations 105a - 105c utilize their higher-dimensional MIMO capabilities to improve coverage and capacity using 3D beamforming in elevation and azimuth beamforming. Base station 105f is a small cell base station, which can be a home node or a portable access point. A base station can support one or more (e.g., two, three, four, etc.) cells.
[0051] Wireless network 100 can support synchronous or asynchronous operations. For synchronous operations, base stations can have similar frame timings, and transmissions from different base stations can be approximately aligned in time. For asynchronous operations, base stations can have different frame timings, and transmissions from different base stations may not be aligned in time. In some cases, the network can be enabled or configured to handle dynamic switching between synchronous and asynchronous operations.
[0052] UEs 115 are distributed throughout wireless network 100, and each UE can be stationary or mobile. It should be recognized that although mobile devices are commonly referred to as user equipment (UE) in the standards and specifications released by the 3rd Generation Partnership Project (3GPP), such devices may also be referred to by those skilled in the art as mobile stations (MS), user stations, mobile units, user units, radio units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile user stations, access terminals (AT), mobile terminals, wireless terminals, remote terminals, cell phones, terminals, user agents, mobile clients, clients, gaming devices, augmented reality devices, in-vehicle component devices / modules, or some other suitable terms. In this document, a "mobile" device or UE does not necessarily need to have the ability to move and can be stationary. Some non-limiting examples of mobile devices, such as embodiments that can include one or more UEs 115, include mobile, cellular phones, smartphones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, laptop computers, personal computers (PCs), notebooks, netbooks, smartbooks, tablets, and personal digital assistants (PDAs). Mobile devices can also be "Internet of Things" (IoT) or "Internet of Everything" (IoE) devices, such as cars or other transportation vehicles, satellite radios, Global Positioning System (GPS) devices, logic controllers, drones, multi-rotor helicopters, quad-rotor helicopters, smart energy or security devices, solar panels or solar arrays, municipal lighting, water, or other infrastructure; industrial automation and enterprise equipment; consumer and wearable devices, such as glasses, wearable cameras, smartwatches, health or fitness trackers, mammalian implantable devices, gesture tracking devices, medical devices, digital audio players (e.g., MP3 players), cameras, gaming controllers, etc.; and digital home or smart home devices, such as home audio, video, and multimedia devices, household appliances, sensors, vending machines, smart lighting, home security systems, smart meters, etc. In one aspect, a UE can be a device that includes a Universal Integrated Circuit Card (UICC). In another aspect, a UE can be a device that does not include a UICC. In some aspects, a UE that does not include a UICC can also be referred to as an IoE device. Figure 1The UEs 115a - 115d of the embodiments shown are examples of mobile smart phone - type devices accessing the wireless network 100. The UEs can also be machines specifically configured for connection communication, including machine - type communication (MTC), enhanced MTC (eMTC), narrow - band IoT (NB - IoT), etc. Figure 1 The UEs 115e - 115k shown are examples of various machines configured for communication accessing the wireless network 100.
[0053] The mobile device (e.g., UE 115) can be capable of communicating with any type of base station, whether it is a macro base station, a pico base station, a femto base station, a repeater, etc. In Figure 1 it, lightning (e.g., communication link) indicates a wireless transmission between the UE and the serving base station (the serving base station is the base station designated to serve the UE on the downlink and / or uplink), or a desired transmission between base stations, and a backhaul transmission between base stations. The UE can operate as a base station or other network node in some scenarios. The backhaul transmission between the base stations of the wireless network 100 can occur when using wired and / or wireless communication links.
[0054] In operation, at the wireless network 100, the base stations 105a - 105c use 3D beamforming and cooperative spatial techniques (e.g., coordinated multipoint (CoMP) or multi - connection) to serve the UEs 115a and 115b. The macro base station 105d performs backhaul communication with the base stations 105a - 105c and the small cell base station 105f. The macro base station 105d also sends multicast services, which are subscribed to and received by the UEs 115c and 115d. Such multicast services can include mobile TV or streaming video, or can include other services for providing community information (e.g., weather emergencies or alerts (e.g., Amber Alert or Gray Alert)).
[0055] The wireless network 100 of the embodiment supports mission-critical communications through ultra-reliable and redundant links for mission-critical devices such as UE 115e, which is a drone. The redundant communication links with UE 115e include those from macro base stations 105d and 105e, as well as small cell base station 105f. Other machine type devices, such as UE 115f (thermometer), UE 115g (smart meter), and UE 115h (wearable device), can communicate directly with base stations (such as small cell base station 105f and macro base station 105e) through the wireless network 100, or communicate in a multi-hop configuration by communicating with another user device that relays its information to the network. For example, UE 115f transmits temperature measurement information to smart meter UE 115g, and then UE 115g reports it to the network through small cell base station 105f. The wireless network 100 can also provide additional network efficiency through dynamic, low-latency TDD / FDD communications, such as in a vehicle-to-vehicle (V2V) mesh network between UEs 115i - 115k communicating with macro base station 105e.
[0056] Figure 2 A block diagram showing the design of base station 105 and UE 115, where the base station 105 and UE 115 can be Figure 1 any one of the base stations and one of the UEs among the base stations in Figure 1 For the restricted association scenario (as described above), the base station 105 can be Figure 2 the small cell base station 105f in
[0057] shown, the base station 105 can be equipped with antennas 234a to 234t, and the UE 115 can be equipped with antennas 252a to 252r to facilitate wireless communication.
[0057] At base station 105, transmit processor 220 may receive data from data source 212 and control information from controller / processor 240. The control information may be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid-ARQ (automatic repeat request) indicator channel (PHICH), a physical downlink control channel (PDCCH), an enhanced physical downlink control channel (EPDCCH), an MTC physical downlink control channel (MPDCCH), etc. The data may be for a PDSCH, etc. Transmit processor 220 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. Transmit processor 220 may also generate reference symbols, such as for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a cell-specific reference signal. If applicable, transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, and / or reference symbols, and may provide output symbol streams to modulators (MOD) 232a through 232t. Each modulator 232 may process its respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may additionally or alternatively process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signals from modulators 232a through 232t may be transmitted via antennas 234a through 234t, respectively.
[0058] At UE 115, antennas 252a through 252r may receive the downlink signals from base station 105 and may provide the received signals to demodulators (DEMOD) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, down-convert, and digitize) its respective received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 may obtain the received symbols from demodulators 254a through 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. Receive processor 258 may process (e.g., demodulate, de-interleave, and decode) the detected symbols, provide the decoded data for UE 115 to data sink 260, and provide the decoded control information to controller / processor 280.
[0059] On the uplink, at the UE 115, the transmit processor 264 may receive and process data from the data source 262 (e.g., for the physical uplink shared channel (PUSCH)) and control information from the controller / processor 280 (e.g., for the physical uplink control channel (PUCCH)). The transmit processor 264 may also generate reference symbols for reference signals. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266 (if applicable), further processed by the modulators 254a through 254r (e.g., for SC-FDM, etc.), and transmitted to the base station 105. At the base station 105, the uplink signals from the UE 115 may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain the decoded data and control information transmitted by the UE 115. The processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240.
[0060] The controller / processors 240 and 280 may direct operations at the base station 105 and the UE 115, respectively. The controller / processor 240 and / or other processors and modules at the base station 105 and / or the controller / processor 28 and / or other processors or modules at the UE 115 may perform or direct the execution of the various processes for the techniques described herein (e.g., to perform or direct the execution shown in Figure 11 or 12), and / or the execution of other processes for the techniques described herein. The memories 242 and 282 may store data and program code for the base station 105 and the UE 115, respectively. The scheduler 244 may schedule the UE for data transmission on the downlink and / or uplink.
[0061] Wireless communication systems operated by different network operating entities (e.g., network operators) may share spectrum. In some instances, a network operating entity may be configured to use the entire specified shared spectrum for at least one time period before another network operating entity uses the entire specified shared spectrum in a different time period. Thus, to allow network operating entities to use the full specified shared spectrum and to reduce interference communication between different network operating entities, certain resources (e.g., time) may be partitioned and allocated to different network operating entities for specific types of communication.
[0062] For example, a network operation entity may be allocated specific time resources reserved for dedicated communication by a network operation entity using the entire shared spectrum. The network operation entity may also be allocated other time resources where the entity is given priority over other network operation entities to use the shared spectrum for communication. If the prioritized network operation entity does not utilize the resources, these time resources that are prioritized for use by the network operation entity may be utilized by other network operation entities on an opportunistic basis. Additional time resources may be allocated to any network operator for use on an opportunistic basis.
[0063] Access to the shared spectrum and arbitration of time resources among different network operation entities may be centrally controlled by a separate entity, determined autonomously through a predefined arbitration scheme, or determined dynamically based on interactions among wireless nodes of network operators.
[0064] In some cases, UE 115 and base station 105 may operate in a shared radio frequency spectrum band, which may include licensed or unlicensed (e.g., contention-based) spectrum. In the unlicensed frequency portion of the shared radio frequency spectrum band, UE 115 or base station 105 may traditionally perform a medium sensing process to compete for access to the spectrum. For example, UE 115 or base station 105 may perform a listen-before-talk (LBT) process (e.g., clear channel assessment (CCA)) before communication to determine whether the shared channel is available. CCA may include an energy detection process to determine whether there is any other active transmission. For example, a device may infer that a change in the received signal strength indicator (RSSI) of a power meter indicates that the channel is occupied. Specifically, signal power concentrated in a certain bandwidth and exceeding a predefined noise floor may indicate another wireless transmitter. CCA may also include detection of a specific sequence indicating channel usage. For example, another device may transmit a specific preamble before transmitting a data sequence. In some cases, the LBT process may include a wireless node adjusting its own backoff window based on the amount of energy detected on the channel and / or acknowledgment / negative acknowledgment (ACK / NACK) feedback for its own transmitted packets (as a proxy for collisions).
[0065] A bandwidth part (BWP) may be used in various arrangements or manners in various communication scenarios. The BWP may be used to achieve flexibility in how resources are allocated (e.g., in a given carrier). The size and structure of the BWP may vary. As an example, the BWP may be a subset of consecutive common physical resource blocks (PRBs) of a component carrier in which multiple different signal types may be transmitted. In other scenarios, one or more BWPs may be arranged in a separated or non-consecutive manner. Generally, the BWP may enable multiplexing of different signals and signal types, e.g., for better utilization and adaptation of spectrum and UE power.
[0066] A BWP may also have various operating characteristics. For example, each BWP may be defined by one or more of its own numerology, frequency positioning, bandwidth size, and control resource set (CORESET). In some scenarios, additionally or alternatively, a BWP may be configured differently and / or uniquely by its own signal characteristics. Generally, a defined BWP may be active on the uplink, and a defined BWP may be active on the downlink at a given time. And, in some instances, for an active cell, there is an active downlink BWP for the downlink carrier and an active uplink BWP for the uplink carrier. The active BWP may be one of the defined BWPs, and the base station may switch the active BWP to another defined BWP (e.g., based on time, based on downlink control information (DCI), or radio resource control (RRC) signaling).
[0067] Wireless devices (e.g., one or more of UE 115 and / or base station 105) of the wireless network 100 may operate in a half-duplex mode or a full-duplex mode. Figures 3A - 3C Illustrates various configurations of the full-duplex mode in a single component carrier that may be utilized by a wireless communication station of the 5G network 100. Accordingly, Figure 3D Illustrates the configuration of the half-duplex mode that may be utilized by a wireless communication station of the 5G network 100. It should be appreciated that, Figures 3A - 3D Presents examples with respect to duplex mode configurations that may be utilized and is not intended to be limiting with respect to specific duplex mode configurations that may be utilized by a wireless communication station, and the wireless communication station may implement full-duplex operation in accordance with the concepts of the present disclosure.
[0068] In Figures 3A - 3C it can be seen that the uplink signal 301 of the full-duplex mode overlaps with the downlink signal 302 in time. That is, in these examples, the wireless communication station implementing the full-duplex mode for wireless communication transmits and receives simultaneously. In contrast, the wireless communication station implementing Figure 3D the example of the half-duplex mode transmits and receives at different times. Thus, Figure 3D the uplink signal 311 and the downlink signal 312 of the example half-duplex mode shown in do not overlap in time.
[0069] Various configurations may be utilized with respect to the full-duplex mode, as shown in the examples of Figures 3A - 3C For example, Figure 3A and Figure 3BAn example of in-band full-duplex is shown, where the uplink signal 301 and the downlink signal 302 in the full-duplex mode overlap in time and frequency. That is, the uplink signal and the downlink signal share at least partially the same time and frequency resources (e.g., all or part of the overlap of the uplink signal and the downlink signal in the time domain and the frequency domain). In another configuration of the full-duplex mode, Figure 3C An example of sub-band full-duplex is shown, where the uplink signal 301 and the downlink signal 302 in the full-duplex mode overlap in time (but not in frequency). That is, the uplink signal and the downlink signal share at least partially the same time resources (e.g., all or part of the overlap of the uplink signal and the downlink signal in the time domain), but do not share the same frequency resources. In Figure 3C the example shown, the uplink signal 301 and the downlink signal 302 are separated in the frequency domain by a guard band 303 (e.g., a relatively narrow frequency spectrum separates the frequency bands occupied by the uplink signal and the downlink signal).
[0070] Figures 4A - 4C Exemplary instances of the use of full-duplex and half-duplex modes in wireless communication are shown. It should be recognized that, Figures 4A - 4C a portion of a 5G network 100 that is selected to illustrate the use of full-duplex and half-duplex modes is shown, and the specific base stations and UEs shown are not intended to be limiting with respect to various wireless communication stations (which may implement various duplex modes in accordance with the concepts of the present disclosure).
[0071] In Figure 4A the example, the base station 105d operates in full-duplex mode, while the UEs 115c and 115d operate in half-duplex mode. In this example, the base station 105d uses shared time resources (e.g., simultaneous downlink and uplink transmissions) and possibly shared frequency resources to receive the uplink signal 401 from the UE 115d and send the downlink signal 402 to the UE 115c.
[0072] In Figure 4B the example, the base station 105d and the UE 115c are each operating in full-duplex mode. In this example, the UE 115c uses shared time resources (e.g., simultaneous downlink and uplink transmissions) and possibly shared frequency resources to send the uplink signal 401 and receive the downlink signal 402.
[0073] In Figure 4C the example, the UE 115c is operating in full-duplex mode (e.g., implementing a multiple transmit and receive (multi-TRP) architecture). As in Figure 4BSimilar to the example of, UE 115c uses shared time resources (e.g., simultaneous downlink and uplink transmissions) and possibly shared frequency resources to transmit the uplink signal 401 and receive the downlink signal 402.
[0074] The BWP configuration that supports full-duplex operation is defined according to an embodiment of the present disclosure. The BWP configuration based on full-duplex frequency can be configured, for example, to support the full-duplex operation performed by a base station (e.g., the full-duplex communication in the example of Figure 4A and 4B and / or a UE (e.g., the full-duplex communication in the example of Figure 4B and 4C as a subset of the defined BWP resources for the full-duplex operation. According to an embodiment, the transition between configurations and modes (e.g., between BWP configurations based on full-duplex frequency, between half-duplex mode and full-duplex mode, etc.) is managed to avoid a period in which the communication device cannot perform any uplink or downlink transmission or otherwise reduces the BWP switching time due to the switching between the defined BWP configurations.
[0075] In the operation of wireless communication within the wireless network 100, some communication frame time slots can be designated as full-duplex, and some others can be designated as half-duplex. For half-duplex time slots, the downlink and uplink transmissions can be non-overlapping in time (e.g., occur separately in time, such as in TDD operation). Thus, the component carrier bandwidth can be allocated for downlink or uplink communication relative to the half-duplex time slots. For full-duplex time slots, the downlink and uplink transmissions can be overlapping in time (e.g., occur simultaneously, such as in FDD operation). Thus, the component carrier bandwidth can be divided into parts for downlink and uplink communication relative to the full-duplex time slots.
[0076] According to some aspects of the present disclosure, the BWP configuration based on full-duplex frequency can provide one or more active BWPs. For example, in some scenarios, these configurations can provide two active BWPs (e.g., one for downlink and one for uplink). The configuration for the BWP can be provided for any specific time slot or symbol. As described above, the full-duplex operation according to an embodiment enables and supports downlink and uplink transmissions that are overlapping in time (e.g., simultaneous downlink and uplink transmissions). Thus, the BWP configuration based on full-duplex frequency according to an embodiment implements one or more constraints with respect to bandwidth and frequency positioning, e.g., to define non-overlapping parts of the BWP frequency resources and / or one or more guard bands. Embodiments of the present disclosure provide a BWP configuration based on full-duplex frequency that includes multiple BWPs, and the BWP configuration based on full-duplex frequency includes a subset of the bandwidth of the corresponding defined BWP available for full-duplex operation.
[0077] The defined BWPs (e.g., traditional downlink and uplink half-duplex BWPs) can be in various arrangements relative to each other. In some scenarios, the BWPs can overlap or not overlap with respect to frequency and / or time. Figure 5A and 5B An example of the overlapping bandwidth with respect to the defined BWPs is shown. In the example, a downlink BWP 501 and an uplink BWP 502 are defined to include a common portion (overlap 551) of the component carrier bandwidth. The bandwidth overlap with respect to the defined BWPs can be partial, as Figure 5A shown (e.g., overlap 551a is less than the bandwidth of at least one of the downlink BWP 501a and the uplink BWP 502a). Alternatively or additionally, the bandwidth overlap with respect to the defined BWPs can be complete, as Figure 5B shown (e.g., overlap 551b is the full bandwidth of the downlink BWP 501b and the uplink BWP 502b). Figure 5C and 5D An example of the non-overlapping bandwidth with respect to the defined BWPs is shown. In the example, a downlink BWP 501 and an uplink BWP 502 are defined to include non-common portions of the component carrier bandwidth. The non-overlapping bandwidth with respect to the defined BWPs can be discontinuous, as Figure 5C shown (e.g., having a gap 552 between the bandwidth of the downlink BWP 501c and the bandwidth of the uplink BWP 502c). Alternatively, the non-overlapping bandwidth with respect to the defined BWPs can be continuous, as Figure 5D shown (e.g., having no gap between the bandwidth of the downlink BWP 501d and the bandwidth of the uplink BWP 502d).
[0078] Regardless of the specific configuration of the defined BWPs (e.g., partially overlapping uplink / downlink BWPs, fully overlapping uplink / downlink BWPs, discontinuous non-overlapping uplink / downlink BWPs, or continuous non-overlapping uplink / downlink BWPs), available BWPs based on the full-duplex frequency BWP configuration can be defined according to embodiments of the present disclosure. These variable and changing configuration types can provide a subset of the bandwidth of the corresponding defined BWPs that support full-duplex operation based on the full-duplex frequency BWP configuration. Thus, a BWP including a bandwidth and frequency-position-limited subset of resources from the defined BWPs of the active downlink half-duplex and uplink half-duplex can be used simultaneously (e.g., in the same time slot, the same symbol, etc.) for full-duplex operation based on the full-duplex frequency BWP configuration.
[0079] When providing BWP configuration based on full-duplex frequency according to some aspects of the present disclosure, the full-duplex available bandwidth (e.g., a subset of BWP resources) is selected from one or more defined BWPs (e.g., traditional uplink and downlink BWPs) for full-duplex operation. According to some embodiments, the available bandwidth selected for BWP configuration based on full-duplex frequency may be segmented (e.g., one or more segments that do not overlap in frequency). When operating in a full-duplex time slot, symbol, or other epoch, the communication device may operate in the available bandwidth of the BWP configuration based on full-duplex frequency corresponding to the active uplink and downlink defined BWPs.
[0080] Figure 6A and 6B illustrates an example of the available bandwidth for full-duplex operation selected from the defined downlink and uplink BWPs. In Figure 6A 's example, the defined downlink half-duplex and uplink half-duplex BWPs overlap in frequency, and the available bandwidth selected for BWP configuration based on full-duplex frequency is chosen as a non-overlapping subset of the bandwidths of the defined downlink and uplink BWPs. In Figure 6B 's example, as will be further discussed below, the defined downlink and uplink BWPs do not overlap in frequency, and the available bandwidth selected for BWP configuration based on full-duplex frequency is chosen as a subset of the bandwidths of the defined downlink and uplink BWPs.
[0081] Referring first to the example of Figure 6A , the available bandwidth is selected as BWP 612 (e.g., a traditional downlink BWP) within the defined downlink half-duplex BWP 610. As shown, BWP 612 has segments 612a and 612b. Moreover, the available bandwidth is selected as BWP 622 (e.g., a traditional uplink BWP) within the defined uplink half-duplex BWP 620. As can be seen in Figure 6A , the bandwidths of BWP 612 and BWP 622 are selected to not overlap in frequency.
[0082] Aspects according to the present disclosure, the BWPs configured based on the full-duplex frequency can be various selected subsets of the correspondingly defined BWPs. For example, the frequency, bandwidth, etc. of the BWPs configured based on the full-duplex frequency can be optionally selected for any scenario. It should be recognized that although both BWP 612 and BWP 622 in the example are each a bandwidth subset of the correspondingly defined half-duplex BWP, the BWPs configured based on the full-duplex frequency in some embodiments can include the full bandwidth of the correspondingly defined BWP (e.g., in cases where the defined BWPs are partially overlapping). Generally, as long as the appropriate constraints regarding bandwidth issues, timing alignment, and frequency positioning are met (e.g., the BWPs configured based on the full-duplex frequency are non-overlapping and the guard band requirements are satisfied, etc.), then these methods and other configurations can be generated. Additionally, as Figure 6A shown in the example of BWP 612 in
[0083] the bandwidth of the BWPs configured based on the full-duplex frequency can be segmented (e.g., including an upper-frequency BWP 612a as a first segment and a lower-frequency BWP 612b as a second segment). The number of segments, the bandwidth of the segments, the bandwidth interval, etc. of the specifically segmented BWPs can be configured based on various aspects of the communication (e.g., uplink and / or downlink data traffic, the number of communication devices participating in full-duplex communication, guard band requirements, etc.). According to some aspects of the present disclosure, the BWPs accommodate a full-duplex frequency-based BWP configuration in which the center frequencies of the uplink and downlink BWPs are not aligned (i.e., no center frequency alignment is provided).
[0083] A bandwidth and frequency positioning limitation implemented with respect to the BWP configuration supporting the full-duplex operation of the embodiments provides one or more guard bands between the BWPs defined based on the full-duplex frequency. As an example, in Figure 6A the example of Figure 6A a guard band 630 is defined to provide an instance of the bandwidth that is still not used for uplink / downlink communication and is set between the uplink and downlink BWPs of the full-duplex frequency-based BWP configuration. In Figure 6A the example of
[0084] the BWP 612 for the downlink is segmented. The guard band 630 is provided to include a guard band 630a and a guard band 630b that separate BWP 612 from BWP 622 in the frequency domain. The bandwidth of the guard band can include a frequency band determined to facilitate sufficient isolation (e.g., uplink / downlink interference below a predetermined threshold level).
[0084] According to aspects of the present disclosure, the format and size of the guard band can vary. In some scenarios, the guard bands can be resized and / or separated from each other to enable full-duplex communication via concurrent communication of an uplink BWP and a downlink BWP configured based on full-duplex frequencies. For example, the bandwidth of a particular guard band can vary based on attributes such as the frequencies of the corresponding uplink and downlink communications, the desired amount of isolation, the subcarrier spacing of the uplink and downlink BWPs, the time difference between the start of the uplink and downlink signals, specific channels to be carried in the BWP, etc. The determination of the bandwidth of the guard band 630 of an embodiment can be based on the ability of the UE to suppress self-interference from its uplink transmission to the downlink reception and depends on the UE uplink transmission power. In most scenarios, the measured power of the residual self-interference (i.e., after self-interference mitigation by the UE) will be lower than a predefined threshold, enabling the UE to perform appropriate downlink reception.
[0085] Now referring to Figure 6B the example of, the available bandwidth is selected as BWP 612 in the defined downlink half-duplex BWP 610 (e.g., a traditional downlink BWP). And, the available bandwidth is selected as BWP 622 in the defined uplink half-duplex BWP 620 (e.g., a traditional uplink BWP). In Figure 6A it can be seen that the bandwidths of the defined downlink half-duplex BWP 610 and the defined uplink half-duplex BWP 620 do not overlap. However, BWPs 612 and 622 configured based on full-duplex frequencies are selected subsets of the corresponding defined half-duplex BWPs. For example, the available bandwidth configured based on full-duplex frequencies can be configured to use a subset of the bandwidth of any one or both of the defined half-duplex BWPs to meet the guard band requirements. In Figure 6B the example of, although a gap 652 exists between the bandwidth of the defined downlink half-duplex BWP 610 and the bandwidth of the defined uplink half-duplex BWP 620, the gap 652 may include insufficient bandwidth to be used as a guard band. Therefore, BWP 622 in the defined uplink half-duplex BWP 620 can be selected as a subset of the defined BWP bandwidth to provide a guard band 630 that, in combination with the gap 652, meets one or more guard band requirements.
[0086] According to aspects of the present disclosure, a BWP configured based on full-duplex frequencies can be as large as the defined BWP (e.g., traditional downlink and uplink BWPs) or can be a sub-part thereof. This sub-setting of the BWP configured based on full-duplex frequencies facilitates fast adaptation between the traditional TDD time slots and FD time slots of an embodiment, where a minimal impact on RF retuning and baseband processing is required.
[0087] Figure 7 illustrates an example in which a full-duplex frequency-based BWP configuration according to the concepts of the present disclosure is implemented via full-duplex operation. Specifically, Figure 7 illustrates the use of various different BWP configurations (shown as BWP configurations 701, 702, and 703) over time (shown as time slots N, N+1, N+2, and N+3). Although Figure 7 the example of includes a time aspect including time slots (e.g., communication frame time slots), the time aspect of the BWP configuration of the embodiments herein may include any suitable epoch (e.g., time slots, symbols, etc.).
[0088] BWP configuration 701 includes a half-duplex frequency-based BWP 711, which includes the full bandwidth of the correspondingly defined BWP. In some scenarios, the traditional downlink BWP configuration parameters of the active downlink BWP may be defined. As shown, in some examples, the defined BWP may be used for the component carrier allocated for half-duplex downlink communication at time slot N. Similarly, Figure 7 the BWP configuration 702 of the example of includes a half-duplex frequency-based BWP 721, which includes the full bandwidth of the correspondingly defined BWP for the component carrier allocated for half-duplex uplink communication at time slot N+3 (e.g., the traditional uplink BWP configuration parameters of the active downlink BWP).
[0089] In contrast, BWP configuration 703 includes a full-duplex frequency-based BWP configuration, which includes BWP 712 and BWP 722 (e.g., which may correspond to Figure 6A the example of). Figure 7 The BWP 712 in the example of includes a subset of the correspondingly defined BWP for the component carriers allocated for the downlink communication of full-duplex communication at time slots N+1 and N+2 (e.g., a subset of the frequency resources of the active downlink half-duplex BWP). Correspondingly, BWP 722 includes a subset of the correspondingly defined BWP for the component carriers allocated for the uplink communication of full-duplex communication at time slots N+1 and N+2 (e.g., a subset of the frequency resources of the active uplink BWP). Using the constraints on the bandwidth and frequency localization implemented in BWP 712 and BWP 722 of the half-duplex BWP configuration 730, a non-overlapping portion of the BWP frequency resources is defined to support full-duplex operation in which downlink and uplink transmissions overlap in time (e.g., simultaneous downlink and uplink transmissions).
[0090] As Figure 7As shown in the example of, a wireless device using the full-duplex frequency-based BWP configuration of the embodiment can switch between full-duplex operation and half-duplex operation. The switching can be based on the duplex nature of the corresponding time slot or symbol. Resource switching can occur for different resources of the BWP defined by the active uplink and / or downlink. Additionally or alternatively, according to the first full-duplex frequency-based BWP configuration and the second full-duplex frequency-based BWP configuration, the wireless device can switch between full-duplex operations. The BWP configuration can correspond to the BWP defined by the active uplink and downlink (e.g., where a set of multiple uplink and downlink BWP pairs, each including available bandwidth selected from the BWP defined by the active uplink and downlink for full-duplex operation). This internal conversion of the defined BWP avoids the BWP switching time, which is typically greater than 1 ms. That is, according to some embodiments of the present disclosure, the switching between full-duplex operation and half-duplex operation and the switching between different configurations of full-duplex operation can be completed with a switching time of less than 1 ms.
[0091] According to aspects of the present disclosure, a set of uplink and downlink BWP pairs (e.g., BWP pairs for different full-duplex frequency-based BWP configurations) can be provided to support various communication modes. For example, the first set of uplink and downlink BWP pairs can include BWP 712 and BWP 722, thereby providing the full-duplex frequency-based BWP configuration of the BWP configuration 703 shown in Figure 7 The second set of uplink and downlink BWP can include different selected BWPs (e.g., Figure 6B The BWP of, different BWPs selected from Figure 6A The defined downlink BWP 610 and the defined uplink BWP 620 of, etc.), thereby providing different full-duplex frequency-based BWP configurations that also support full-duplex operation. According to an embodiment, a set of multiple uplink and downlink BWP pairs providing the full-duplex frequency-based BWP configuration is configured to meet the frequency domain aspects (e.g., bandwidth and frequency) for full-duplex operation. However, other sets of uplink and downlink BWP pairs can be configured for half-duplex operation. For example, the third set of uplink and downlink BWP can include BWPs (including the full bandwidth of the corresponding defined BWP (e.g., Figure 7 The half-duplex frequency-based BWP 711 or BWP 712 of)), while the other BWPs in the set provide null bandwidth. Therefore, a set of uplink and downlink BWP pairs can be provided for various combinations of full-duplex and / or half-duplex operations.
[0092] A set of multiple uplink and downlink BWP pairs can be provided relative to different defined downlink and uplink BWPs. For example, a first set of uplink and downlink BWP pairs can be provided for a first active defined downlink and uplink BWP (e.g., Figure 8 active downlink 810a and active uplink 820a), and a second set of uplink and downlink BWP pairs can be provided for a second active defined downlink and uplink BWP (e.g., Figure 8 active downlink 810b and active uplink 820b). Embodiments can utilize a BWP switching method (e.g., Figure 8 BWP switching 801) to switch between different sets of uplink and downlink BWP pairs, thereby switching between half-duplex operation and full-duplex operation, or even between different configurations of full-duplex operation.
[0093] Additionally or alternatively, multiple sets of uplink and downlink BWP pairs can be provided relative to a specific defined downlink and uplink BWP. For example, a first set of uplink and downlink BWP pairs and a second set of uplink and downlink BWP pairs can be provided for a defined downlink and uplink BWP (e.g., Figure 9 active downlink BWP 910 and active uplink BWP 920). Using different sets of uplink and downlink BWP pairs with an active defined downlink and uplink BWP, an implicit BWP switch based on the duplex nature of time slots and / or symbols can be used to switch between half-duplex operation and full-duplex operation, or even between different configurations of full-duplex operation. Figure 9 For example, it shows an implicit BWP switch between different full-duplex frequency-based BWP configurations for switching between different configurations of full-duplex operation.
[0094] As should be understood from the above, for implicit BWP switching, various options for determining the BWP to which to switch can be provided. For example, a set of multiple uplink and downlink BWP pairs for the active BWP can be defined for different duplex modes (e.g., one or more sets of uplink and downlink BWP pairs for half-duplex time slots, one or more sets of uplink and downlink BWP pairs for full-duplex time slots, etc.). When transitioning between half-duplex time slots and full-duplex time slots, or when transitioning between full-duplex time slots with different uplink / downlink configurations, the active BWP implicitly changes to the corresponding set of uplink and downlink BWP pairs. As another example, the active uplink and downlink BWP pairs can be extended from a set of BWPs based on downlink and uplink half-duplex frequencies (e.g., {DL, UL}) to also include a set of BWPs based on downlink half-duplex frequencies and uplink half-duplex frequencies (e.g., {DL-HD, UL-HD, DL-FD, UL-FD}). In this example, additionally or alternatively, when transitioning to a full-duplex time slot or symbol, the associated active downlink and uplink BWPs that support full-duplex operation can be used.
[0095] Implicit BWP switching provided according to embodiments of the present disclosure facilitates relaxation (i.e., faster) of BWP switching latency, and can thus be used to improve handover latency. Additionally, the BWP configuration can be configured to support non-overlapping frequency ranges within the BWP, excluded frequency ranges within the BWP for full-duplex operation, etc.
[0096] Figure 10A An example is shown in which a BWP portion configured based on full-duplex frequencies is allocated to multiple UEs. In Figure 10A the example, a BWP configuration based on full-duplex frequencies is used with respect to a wireless device operating in a combination of full-duplex and half-duplex operations. For example, a base station can operate in full-duplex mode, while some or all of the UEs have only half-duplex capabilities. The base station (or network node) can adjust and / or customize its operation according to the capabilities of the UEs. Figure 10A An example is shown of the use of various different BWP configurations (shown as BWP configuration 1001, 1002, and 1003) over time (shown as time slots N, N+1, N+2, and N+3), where the base station operates in full-duplex mode while serving three UEs (UE1, UE2, and UE3) operating in half-duplex mode.
[0097] Each of the BWP configurations (1001, 1002, and 1003) shown has multiple formats and characteristics. As an example, BWP configuration 1001 includes BWP 1011 based on a half-duplex frequency. As shown, BWP configuration 1001 includes the full bandwidth of the corresponding defined BWP for the component carrier and can thus be allocated to one or more UEs at time slot N for half-duplex downlink communication. Similarly, Figure 10A An example BWP configuration 1002 includes BWP 1021 based on a half-duplex frequency. BWP configuration 1002 can include the full bandwidth of the corresponding defined BWP for the component carrier and can thus be allocated to one or more UEs at time slot N+3 for half-duplex uplink communication. However, BWP configuration 1003 includes a BWP configuration based on a full-duplex frequency (including BWP 1012 and BWP 1022). At time slots N+1 and N+2, the BWPs of BWP configuration 1003 can be allocated to different UEs among the UEs for use in half-duplex communication. BWP configuration 1003 includes both an uplink and a downlink BWP (uplink BWP 1022 and downlink BWP 1012), and thus although individual UEs operate in a half-duplex mode, the single-view base station can operate in a full-duplex mode.
[0098] In the shown example of BWP configuration 1003, BWP 1022 includes a subset of the corresponding defined BWP for the component carrier allocated to UE3 for uplink communication (e.g., a subset of the frequency resources of the active uplink BWP). Additionally, in the shown example of BWP configuration 1003, BWP 1021 includes a subset of the corresponding defined BWP for the component carrier allocated for downlink communication (e.g., a subset of the frequency resources of the active downlink BWP). In this example, the bandwidth of BWP 1021 is segmented. A first segment including the upper-frequency BWP 1012a is allocated to UE2 for downlink communication, and a second segment including the lower-frequency BWP 1012b is allocated to UE1 for downlink communication. Thus, the BWP portions of the full-duplex-frequency-based BWP configuration of BWP configuration 1003 are allocated to different UEs, including portions for different link directions (e.g., uplink / downlink) allocated to different UEs, and portions for the same link direction (e.g., downlink, as shown, or uplink) allocated to different UEs.
[0099] Although described with reference to BWP 1021 segmented into upper-frequency BWP 1012a and lower-frequency BWP 1012b Figure 10AExamples, but multiple independent BWPs with non-overlapping frequency bands can be provided according to some embodiments. Additionally, the BWPs do not need to be segmented, or multiple independent BWPs do not need to be provided, to support allocating portions of the BWP configured based on full-duplex frequencies to different UEs for the same link direction. That is, portions within the contiguous bandwidth of a half-duplex frequency-based BWP can be allocated to different UEs, or other wireless communication devices (in some implementations).
[0100] Continuing to refer to Figure 10A Examples, it can be seen that changing the slot / symbol format from half-duplex to full-duplex, or vice versa, can have an effect on the BWP of a half-duplex UE. According to some aspects, a UE can be configured using a slot configuration (e.g., a selected slot configuration from a set {HD1, HD2, HD3, …} of different predefined half-duplex slot configurations), or the UE can be signaled dynamically relative to a slot / symbol format change. For example, a UE communication operation can be defined using a set of BWPs including UL / DL BWP configurations corresponding to different HD slot configurations. In Figure 10A Examples, the communication operations for UE1, UE2, and UE3 can be configured as follows:
[0101] UE1 = {DL-HD1 = 100MHz, UL-HD1 = 100Mhz, DL-HD2 = 40MHz lower, UL-HD2 = Null, …}
[0102] UE2 = {DL-HD1 = Null, UL-HD1 = 100Mhz, DL-HD2 = 40MHz upper, UL-HD2 = Null, …}
[0103] UE3 = {DL-HD1 = Null, UL-HD1 = 100Mhz, DL-HD2 = null, UL-HD2 = 20MHcenter, …}
[0104] When there is a transition between an HD1 slot and an HD2 slot, the UE can implicitly change the active BWP to UL-HD2 and DL-HD2 within the set of BWPs.
[0105] Figure 10B Shows another example where portions of the BWP configured based on full-duplex frequencies are allocated to multiple UEs. In Figure 10BIn an example, a BWP configuration based on full-duplex frequencies is used with respect to a UE operating in a combination of full-duplex and half-duplex operations. For example, in addition to a base station operating in full-duplex mode, a UE with full-duplex capabilities (shown as UE2 in time slots N+1 and N+2) is operating in full-duplex mode. In the example shown, only a UE with half-duplex capabilities (shown as UE1 in time slots N, N+1, and N+2) is operating in half-duplex mode, as is a UE with full-duplex capabilities (shown as UE2 in time slot N+3) when operating with respect to a half-duplex BWP configuration.
[0106] In some aspects of the present disclosure, a half-duplex BWP configuration (e.g., a conventional downlink and / or uplink BWP of a defined BWP) can be designated as the default BWP configuration to be used by a wireless device of the wireless network 100. For example, a BWP timer (e.g., an inactive timer) can be used with respect to the BWP configuration allocation such that when the BWP timer expires, the UE can default to operating in half-duplex mode. If a time slot / symbol is full-duplex (e.g., implementing a BWP configuration based on full-duplex frequencies), a UE operating in the default half-duplex mode can assume the time slot / symbol is a half-duplex time slot / symbol or skip the time slot. Various procedures can be followed to transition from the current active BWP to the default BWP. For example, if the current active BWP configuration is in full-duplex, the wireless device can transition the current active BWP configuration to half-duplex and thereafter, the wireless device can transition to the default BWP configuration in half-duplex. In another example, if the current active BWP configuration is in full-duplex, the wireless device can transition the current active BWP configuration to the default BWP in full-duplex and thereafter, the wireless device can transition to the default BWP configuration in half-duplex. In the foregoing examples, a separate or same inactive timer value for the BWP timer can be used for the transition steps. In yet another example, if the current active BWP configuration is in full-duplex, the wireless device can transition the current active BWP configuration to the default BWP configuration in half-duplex.
[0107] Figure 11 is a block diagram showing example blocks performed by a wireless communication device (e.g., base station 105) to implement aspects of the present disclosure. The example blocks will also be described with respect to the base station 105 as shown in Figure 13 as shown. Figure 13 is a block diagram showing a base station 105 configured according to an aspect of the present disclosure. The base station 105 includes as Figure 2For the structure, hardware, and components shown in base station 105. For example, base station 105 includes a controller / processor 240 that operates to execute logic or computer instructions stored in a memory 242 and controls the components that provide the features and functions of base station 105. Under the control of controller / processor 240, base station 105 transmits and receives signals via wireless radio units 1300a-t and antennas 234a-t. The wireless radio units 1300a-t include the respective components and hardware shown for base station 105 in Figure 2 including modulators / demodulators 232a-t, MIMO detectors 236, receive processors 238, transmit processors 220, and TX MIMO processors 230.
[0108] In Figure 11 an example operation of process 1100, base station 105 provides a first FD-frequency-based BWP configuration. For example, Figure 13 the FD-frequency-based configuration logic 1302 shown in can provide a selection of available bandwidth (e.g., a subset of BWP resources) from one or more defined BWPs (e.g., conventional uplink and downlink half-duplex BWPs defined by respective sets of BWP configuration parameters in BWP configuration parameters 1303) to define a first FD-frequency-based BWP configuration for full-duplex operation (at block 1101). The first FD-frequency-based BWP configuration can include multiple BWPs. A separate BWP among the multiple BWPs can include a subset of the bandwidth of the BWP(s) to be defined for full-duplex operation (e.g., a subset of the bandwidth of the defined BWP(s) that is selected as a non-overlapping subset of the bandwidths of the defined downlink and uplink BWPs available for full-duplex operation). One or more sets of BWP configuration parameters that define the first FD-frequency-based BWP configuration and / or its individual BWPs can be stored as BWP configuration parameters in BWP configuration parameters 1303.
[0109] At block 1102 of process 1100, base station 105 allocates the first FD-frequency-based BWP configuration during full-duplex operation to configure one or more communication devices for communication. For example, a scheduler 244 of base station 105 can allocate some or all of the individual BWPs of the first FD-frequency-based BWP configuration to one or more UEs in UE 115. Full-duplex operation can, for example, provide base station 105 operating in full-duplex mode while one or more UEs are operating in half-duplex mode (e.g., as shown in Figure 4A ), base station 105 and the UEs each operating in full-duplex mode (e.g., as shown in Figure 4B ), a UE operating in full-duplex mode with one or more base stations in base station 105, etc.
[0110] Figure 12 is a block diagram illustrating example blocks performed by a wireless communication device (e.g., UE 115) to implement aspects of the present disclosure. The example blocks will also be described with respect to Figure 14 the UE 115 shown in Figure 14 is a block diagram of a UE 115 configured in accordance with one aspect of the present disclosure. The UE 115 includes structures, hardware, and components as Figure 2 shown for the UE 115. For example, the UE 115 includes a controller / processor 280 that operates to execute logic or computer instructions stored in a memory 282 and to control components of the UE 115 that provide features and functionality of the UE 115. Under the control of the controller / processor 280, the UE 115 transmits and receives signals via wireless radio units 1400a-r and antennas 252a-r. The wireless radio units 1400a-r include respective components and hardware as Figure 2 shown for the UE 115, including modulators / demodulators 254a-r, a MIMO detector 256, a receive processor 258, a transmit processor 264, and a TX MIMO processor 266.
[0111] In Figure 12 an example operation of block 1201 of process 1200, the UE 115 obtains a first full-duplex frequency-based BWP. For example, the FD frequency-based BWP configuration logic 1302 of the UE 115 can be configured via DCI provided by the base station 105 for respective BWP configurations. The DCI can include BWP configuration parameters for one or more BWP configurations, identifying the BWP configurations (e.g., stored in the BWP configuration parameters 1303), etc., as can be used by the FD frequency-based BWP configuration logic 1302 to configure the UE 115 for communication during full-duplex operation. The first full-duplex frequency-based BWP configuration can include multiple BWPs. A separate BWP of the multiple BWPs can include a subset of the bandwidth of a corresponding defined BWP (e.g., a traditional uplink and downlink half-duplex BWP defined by a corresponding set of BWP configuration parameters in the BWP configuration parameters 1403) configured for full-duplex operation (e.g., a subset of the bandwidth of the defined BWP that is selected as a non-overlapping subset of the bandwidths of the defined downlink and uplink BWPs). One or more sets of BWP configuration parameters defining the first full-duplex frequency-based BWP configuration and / or its separate BWPs can be stored as BWP configuration parameters in the BWP configuration parameters 1403.
[0112] At block 1202 of 1200, the UE 115 communicates using one or more first BWPs of a first full-duplex frequency-based BWP configuration during full-duplex operation. For example, the FD frequency-based BWP configuration logic 1402 may configure the UE 115 to communicate with the base station using one or more individual BWPs of the first FD frequency-based BWP, e.g., during full-duplex operation. Full-duplex operation may, for example, provide a base station operating in the full-duplex mode while the UE 115 is operating in the half-duplex mode (e.g., as shown in Figure 4A ), the base station and the UE 115 each operating in the full-duplex mode (e.g., as shown in Figure 4B ), the UE 115 operating with one or more base stations in the full-duplex mode, etc.
[0113] Those skilled in the art will appreciate that a variety of different techniques and methods can be utilized to represent information and signals. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.
[0114] The functional blocks and modules described herein (e.g., the functional blocks and modules in Figure 2 ) may include a processor, an electronic device, a hardware device, an electronic component, a logic circuit, a memory, software code, firmware code, etc., or any combination thereof. Additionally, the features related to implementing the full-duplex frequency-based BWP configuration discussed herein can be implemented via dedicated processor circuitry / via executable instructions and / or a combination thereof.
[0115] Those skilled in the art will further recognize that the various illustrative logical blocks, modules, circuits, and algorithmic steps associated with the present disclosure (e.g., the logical blocks in Figure 11 and 12 ) can be implemented as electronic hardware, computer software, or a combination thereof. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and the design constraints imposed on the overall system. The skilled person can implement the described functionality in different ways for each particular application, but such implementation decisions should not be regarded as causing a departure from the scope of the present disclosure. The skilled person will also readily recognize that the order or combination of the components, methods, or interactions described herein are merely examples, and the components, methods, or interactions of the various aspects of the present disclosure can be combined or performed in ways other than those illustrated and described herein.
[0116] Various illustrative logical blocks, modules, and circuits associated with the disclosure herein can be implemented or performed by a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (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, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
[0117] Steps of a method or algorithm related to the disclosure herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination thereof. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.
[0118] In one or more exemplary designs, the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions can be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. The computer-readable storage media may be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or any other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code units in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer or a general purpose or special purpose processor. Additionally, any connection is properly termed 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, or digital subscriber line (DSL), then the coaxial cable, fiber optic cable, twisted pair, or DSL is included in the definition of medium. As used herein, disk includes high density disk (CD), laser disk, optical disk, digital versatile disk (DVD), hard disk, solid state disk, and Blu-ray disk, where some disks typically magnetically replicate data, while some optically replicate data using lasers. Combinations of the above should also be included within the scope of computer-readable media.
[0119] As used herein (including in the claims), when the term “and / or” is used in a list of two or more items, it means that any one of the listed items can be employed by itself, or any combination of two or more of the listed items can be employed. For example, if a composition is described as including components A, B, and / or C, the composition can include A alone; B alone; C alone; 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. Also, as used herein (including in the claims), the “or” used in a list of items that ends with “at least one of” indicates a disjunctive list such that, for example, a list of “at least one of A, B, or C” means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) or any combination thereof.
[0120] The foregoing provides that those skilled in the art can 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 described herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for wireless communication, comprising: Provide a first full-duplex (FD) frequency-based BWP configuration including a plurality of bandwidth parts (BWPs), wherein the plurality of BWPs of the first FD frequency-based BWP configuration are configured for FD operation and include a first BWP and a second BWP, the first BWP includes a first bandwidth of a first defined BWP selected from a plurality of defined BWPs, the second BWP includes a second bandwidth of a second defined BWP selected from the plurality of defined BWPs, and wherein one or more of the plurality of BWPs of the first FD frequency-based BWP configuration include sub-parts of the bandwidths of the corresponding defined BWPs of the plurality of defined BWPs; and During the FD operation, allocate the first FD frequency-based BWP configuration to configure one or more communication devices for communication.
2. The method according to claim 1, wherein, At least one of the first BWP or the second BWP of the first FD frequency-based BWP configuration provides a segmented BWP configuration with discontinuous bandwidth parts.
3. The method according to claim 1, wherein, The first defined BWP of the plurality of defined BWPs includes a downlink half-duplex (HD) BWP of the plurality of defined BWPs, and the second defined BWP of the plurality of defined BWPs includes an uplink HD BWP of the plurality of defined BWPs, wherein the first bandwidth of the first BWP of the first FD frequency-based BWP configuration and the second bandwidth of the second BWP of the first FD frequency-based BWP configuration do not overlap in frequency, and wherein allocating the first FD frequency-based BWP configuration for FD wireless communication includes: Allocating the first BWP of the first FD frequency-based BWP configuration for the downlink of the FD wireless communication; and Allocating the second BWP of the first FD frequency-based BWP configuration for the uplink of the FD wireless communication.
4. The method according to claim 3, wherein, The downlink HD BWP of the plurality of defined BWPs and the uplink HD BWP of the plurality of defined BWPs overlap at least partially in frequency, wherein the first bandwidth of the first BWP of the first FD frequency-based BWP configuration and the second bandwidth of the second BWP of the first FD frequency-based BWP configuration are non-overlapping parts of the downlink HD BWP and the uplink HD BWP of the plurality of defined BWPs.
5. The method according to claim 3, wherein, The downlink HD BWP of the plurality of defined BWPs and the uplink HD BWP of the plurality of defined BWPs do not overlap in frequency, wherein the first bandwidth of the first BWP of the first FD frequency-based BWP configuration and the second bandwidth of the second BWP of the first FD frequency-based BWP configuration are non-overlapping portions of the downlink HD BWP and the uplink HD BWP of the plurality of defined BWPs separated by a guard band, and the guard band is at least partially defined by the sub-portion of the bandwidth of one of the downlink HD BWP or the uplink HD BWP.
6. The method according to claim 1, further comprising: Providing a plurality of uplink and downlink BWP pairs sets each including a plurality of BWPs, wherein the first FD frequency-based BWP configuration is an uplink and downlink BWP pairs set in the plurality of uplink and downlink BWP pairs sets.
7. The method according to claim 6, wherein, Two or more uplink and downlink BWP pairs sets in the plurality of uplink and downlink BWP pairs sets are defined for the bandwidth of the downlink half-duplex (HD) BWP of the plurality of defined BWPs and the bandwidth of the uplink HD BWP of the plurality of defined BWPs.
8. The method according to claim 7, wherein, The two or more uplink and downlink BWP pairs sets defined for the bandwidth of the downlink HD BWP and the uplink HD BWP of the plurality of defined BWPs include a first uplink and downlink BWP pairs set of the first FD frequency-based BWP configuration configured to support FD operation and a second uplink and downlink BWP pairs set configured to support HD operation.
9. The method according to claim 7, wherein, The two or more uplink and downlink BWP pairs sets defined for the bandwidth of the downlink HD BWP and the uplink HD BWP of the plurality of defined BWPs extend the downlink HD BWP to at least a first BWP configuration configured to support FD operation and a second BWP configuration configured to support HD operation, and extend the uplink HD BWP to at least a third BWP configuration configured to support FD operation and a fourth BWP configuration configured to support HD operation.
10. The method according to claim 1, wherein, Allocating the first FD frequency-based BWP configuration allocates the first BWP configuration in the first FD frequency-based BWP configuration to a communication device for transmission of FD time slots or symbols, the method further comprising: Allocating a second BWP configuration to the communication device for transmission of half-duplex (HD) time slots or symbols, wherein the transition between FD operation and HD operation is based on the duplex nature of the corresponding time slots or symbols.
11. The method according to claim 1, wherein, Allocate the first FD-frequency-based BWP configuration, allocate the first part of the first BWP configuration of the first FD-frequency-based BWP configuration to a first half-duplex (HD) mode communication device communicating with the FD mode communication device, allocate the second part of the first BWP configuration of the first FD-frequency-based BWP configuration to a second HD mode communication device communicating with the FD mode communication device, and allocate at least a part of the second BWP configuration of the first FD-frequency-based BWP configuration to a third HD mode communication device communicating with the FD mode communication device.
12. The method according to claim 1, wherein, Allocate the first FD-frequency-based BWP configuration, allocate the first part of the first BWP configuration of the first FD-frequency-based BWP configuration to a first half-duplex (HD) mode communication device communicating with the FD mode communication device, allocate the second part of the first BWP configuration of the first FD-frequency-based BWP configuration to a first FD mode communication device communicating with the FD mode communication device, and allocate at least a part of the second BWP configuration of the first FD-frequency-based BWP configuration to the first FD mode communication device.
13. A method for wireless communication, comprising: Obtain a first full-duplex (FD)-frequency-based BWP configuration including a plurality of bandwidth parts (BWPs), wherein the plurality of BWPs of the first FD-frequency-based BWP configuration are configured for FD operation and include a first BWP and a second BWP, the first BWP includes a first bandwidth of a first defined BWP selected from a plurality of defined BWPs, the second BWP includes a second bandwidth of a second defined BWP selected from the plurality of defined BWPs, and wherein one or more of the plurality of BWPs of the first FD-frequency-based BWP configuration include sub-parts of the bandwidths of the corresponding defined BWPs of the plurality of defined BWPs; and During the FD operation, communicate using the first one or more of the plurality of BWPs of the first FD-frequency-based BWP configuration.
14. The method according to claim 13, wherein, At least one of the first BWP or the second BWP of the first FD-frequency-based BWP configuration includes a segmented BWP configuration having discontinuous bandwidth parts.
15. The method according to claim 13, wherein, The first defined BWP of the plurality of defined BWPs includes a downlink half-duplex (HD) BWP of the plurality of defined BWPs, and the second defined BWP of the plurality of defined BWPs includes an uplink HD BWP of the plurality of defined BWPs, and wherein the first bandwidth of the first BWP of the first FD-frequency-based BWP configuration and the second bandwidth of the second BWP of the first FD-frequency-based BWP configuration do not overlap in frequency.
16. The method according to claim 15, wherein, The downlink HD BWP of the plurality of defined BWPs and the uplink HD BWP of the plurality of defined BWPs at least partially overlap in frequency, wherein the first bandwidth of the first BWP configured by the first FD frequency-based BWP configuration and the second bandwidth of the second BWP configured by the first FD frequency-based BWP configuration are non-overlapping portions of the downlink HD BWP and the uplink HD BWP of the plurality of defined BWPs.
17. The method according to claim 15, wherein, The downlink HD BWP of the plurality of defined BWPs and the uplink HD BWP of the plurality of defined BWPs do not overlap in frequency, wherein the first bandwidth of the first BWP configured by the first FD frequency-based BWP configuration and the second bandwidth of the second BWP configured by the first FD frequency-based BWP configuration are non-overlapping portions of the downlink HD BWP and the uplink HD BWP of the plurality of defined BWPs separated by a guard band, and the guard band is at least partially defined by the sub-portion of the bandwidth of one of the downlink HD BWP or the uplink HD BWP.
18. The method according to claim 13, wherein, The first FD frequency-based BWP configuration is a set of uplink and downlink BWP pairs in a set of multiple uplink and downlink BWP pairs including a plurality of BWPs.
19. The method according to claim 18, wherein,Two or more sets of uplink and downlink BWP pairs are defined for the bandwidths of the downlink half-duplex (HD) BWP and the uplink HD BWP of the plurality of defined BWPs and include a first set of uplink and downlink BWP pairs of the first FD frequency-based BWP configuration configured to support FD operation and a second set of uplink and downlink BWP pairs configured to support HD operation.
20. The method according to claim 18, wherein, Two or more sets of uplink and downlink BWP pairs are defined for the bandwidths of the downlink half-duplex (HD) BWP and the uplink HD BWP of the plurality of defined BWPs, and extend the downlink HD BWP to at least a first BWP configuration configured to support FD operation and a second BWP configuration configured to support HD operation, and extend the uplink HD BWP to at least a third BWP configuration configured to support FD operation and a fourth BWP configuration configured to support HD operation.
21. The method according to claim 13, wherein, Communicating using the first FD frequency-based BWP configuration during FD wireless communication operation is for the transmission of FD time slots or symbols, and the method further includes: Communicating using a second one or more BWPs of a second BWP configuration during half-duplex (HD) operation for the transmission of HD time slots or symbols, wherein the transition between FD operation and HD operation is based on the duplex nature of the corresponding time slot or symbol.
22. The method according to claim 13, further comprising: Default to the half-duplex (HD) BWP configuration of the plurality of defined BWPs after the BWP inactivity timer expires.
23. An apparatus configured for wireless communication, the apparatus comprising: Memory; And At least one processor, the at least one processor being coupled to the memory, wherein the at least one processor is configured to: Provide a first full-duplex (FD) frequency-based BWP configuration including a plurality of bandwidth parts (BWPs), wherein the plurality of BWPs of the first FD frequency-based BWP configuration are configured for FD operation and include a first BWP and a second BWP, the first BWP including a first bandwidth of a first defined BWP selected from a plurality of defined BWPs, the second BWP including a second bandwidth of a second defined BWP selected from the plurality of defined BWPs, and wherein one or more of the plurality of BWPs of the first FD frequency-based BWP configuration include sub-parts of the bandwidths of the corresponding defined BWPs of the plurality of defined BWPs; and Allocate the first FD frequency-based BWP configuration during the FD operation to configure one or more communication devices for communication.
24. The apparatus according to claim 23, wherein, The first defined BWP of the plurality of defined BWPs includes a downlink half-duplex (HD) BWP of the plurality of defined BWPs, and the second defined BWP of the plurality of defined BWPs includes an uplink HD BWP of the plurality of defined BWPs, wherein the first bandwidth of the first BWP of the first FD frequency-based BWP configuration and the second bandwidth of the second BWP of the first FD frequency-based BWP configuration do not overlap in frequency, and wherein the at least one processor configured to allocate the first FD frequency-based BWP configuration for FD wireless communication is configured to: Allocate the first BWP of the first FD frequency-based BWP configuration for the downlink of the FD wireless communication; and Allocate the second BWP of the first FD frequency-based BWP configuration for the uplink of the FD wireless communication.
25. The apparatus according to claim 23, wherein, The at least one processor is configured to: Provide a plurality of uplink and downlink BWP pair sets each including a plurality of BWPs, wherein the first FD frequency-based BWP configuration is an uplink and downlink BWP pair set in the plurality of uplink and downlink BWP pair sets, wherein two or more of the plurality of uplink and downlink BWP pair sets in the plurality of uplink and downlink BWP pair sets are defined for the bandwidth of the downlink half-duplex (HD) BWP of the plurality of defined BWPs and the bandwidth of the uplink HD BWP of the plurality of defined BWPs, and wherein the two or more uplink and downlink BWP pair sets defined for the bandwidth of the downlink HD BWP and the uplink HD BWP of the plurality of BWPs include a first uplink and downlink BWP pair set of the first FD frequency-based BWP configuration configured to support FD operation and a second uplink and downlink BWP pair set configured to support HD operation.
26. The apparatus according to claim 23, wherein, The at least one processor is configured to: Provide a plurality of uplink and downlink BWP pair sets each including a plurality of BWPs, wherein the first FD frequency-based BWP configuration is an uplink and downlink BWP pair set in the plurality of uplink and downlink BWP pair sets, wherein two or more uplink and downlink BWP pair sets in the plurality of uplink and downlink BWP pair sets are defined for the bandwidth of the downlink half-duplex (HD) BWP of the plurality of defined BWPs and the bandwidth of the uplink HD BWP of the plurality of defined BWPs, and wherein the two or more uplink and downlink BWP pair sets defined for the bandwidth of the downlink HD BWP and the uplink HD BWP of the plurality of defined BWPs extend the downlink HD BWP to at least a first BWP configuration configured to support FD operation and a second BWP configuration configured to support HD operation, and extend the uplink HD BWP to at least a third BWP configuration configured to support FD operation and a fourth BWP configuration configured to support HD operation.
27. An apparatus configured for wireless communication, the apparatus comprising: Memory; And At least one processor coupled to the memory, wherein the at least one processor is configured to: Obtain a first full-duplex (FD) frequency-based BWP configuration including a plurality of bandwidth parts (BWPs), wherein the plurality of BWPs of the first FD frequency-based BWP configuration are configured for FD operation and include a first BWP and a second BWP, the first BWP includes a first bandwidth of a first defined BWP selected from a plurality of defined BWPs, the second BWP includes a second bandwidth of a second defined BWP selected from the plurality of defined BWPs, and wherein one or more BWPs of the plurality of BWPs of the first FD frequency-based BWP configuration include sub-parts of the bandwidths of the corresponding defined BWPs in the plurality of defined BWPs; and Communicate using the first one or more BWPs of the plurality of BWPs of the first FD frequency-based BWP configuration during the FD operation.
28. The apparatus according to claim 27, wherein, The first defined BWP in the plurality of defined BWPs includes the downlink half-duplex (HD) BWP in the plurality of defined BWPs, and the second defined BWP in the plurality of defined BWPs includes the uplink HD BWP in the plurality of defined BWPs, and wherein the first bandwidth of the first BWP of the first FD frequency-based BWP configuration and the second bandwidth of the second BWP of the first FD frequency-based BWP configuration do not overlap in frequency.
29. The apparatus according to claim 27, wherein, The first FD frequency-based BWP configuration is a set of uplink and downlink BWP pairs in a set of multiple uplink and downlink BWP pairs each including a plurality of BWPs, and wherein two or more sets of uplink and downlink BWP pairs are defined for the bandwidths of the downlink half-duplex (HD) BWP and the uplink HD BWP of the plurality of defined BWPs and include a first set of uplink and downlink BWP pairs configured to support FD operation and a second set of uplink and downlink BWP pairs configured to support HD operation, which is the first FD frequency-based BWP configuration.
30. The apparatus according to claim 27, wherein, The first FD frequency-based BWP configuration is a set of uplink and downlink BWP pairs in a set of multiple uplink and downlink BWP pairs each including a plurality of BWPs, and wherein two or more sets of uplink and downlink BWP pairs are defined for the bandwidths of the downlink half-duplex (HD) BWP and the uplink HD BWP of the plurality of defined BWPs, and the downlink HD BWP is extended to at least a first BWP configuration configured to support FD operation and a second BWP configuration configured to support HD operation, and the uplink HD BWP is extended to at least a third BWP configuration configured to support FD operation and a fourth BWP configuration configured to support HD operation.