CN117795859A - Frequency hopping enablement for uplink control channel transmissions by a user equipment - Google Patents

Frequency hopping enablement for uplink control channel transmissions by a user equipment Download PDF

Info

Publication number
CN117795859A
CN117795859A CN202280053389.9A CN202280053389A CN117795859A CN 117795859 A CN117795859 A CN 117795859A CN 202280053389 A CN202280053389 A CN 202280053389A CN 117795859 A CN117795859 A CN 117795859A
Authority
CN
China
Prior art keywords
subset
frequencies
frequency hopping
uplink
control channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202280053389.9A
Other languages
Chinese (zh)
Inventor
雷静
P·加尔
陈万士
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US17/651,366 external-priority patent/US11470614B1/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority claimed from PCT/US2022/072586 external-priority patent/WO2023015052A1/en
Publication of CN117795859A publication Critical patent/CN117795859A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

An apparatus for wireless communication includes a transmitter configured to communicate with a base station based on a first uplink bandwidth portion (BWP) that includes a first subset of frequencies and further includes a second subset of frequencies. The apparatus also includes a receiver configured to receive one or more messages from the base station that include a frequency hopping indicator that specifies whether to enable or disable a frequency hopping mode. The transmitter is further configured to transmit an uplink control channel transmission to the base station using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator specifying that the hopping mode is enabled; or based on the hopping indicator specifying disabling the hopping pattern, send an uplink control channel transmission to the base station using one of the first subset of frequencies or the second subset of frequencies.

Description

Frequency hopping enablement for uplink control channel transmissions by a user equipment
Cross Reference to Related Applications
The present application claims the benefit of U.S. patent application Ser. No. 17/651,366, entitled "FREQUENCY HOPPING ENABLING FOR AN UPLINK CONTROL CHANNEL TRANSMISSION BY A USER EQUIPMENT", filed on month 2, 16 of 2022, and U.S. provisional patent application Ser. No. 63/260,038, entitled "FREQUENCY HOPPING ENABLING FOR AN UPLINK CONTROL CHANNEL TRANSMISSION BY A USER EQUIPMENT", filed on month 8, 6 of 2021, the disclosures of which are expressly incorporated herein by reference in their entireties.
Technical Field
Aspects of the present disclosure relate generally to wireless communication systems, and more particularly, to communication systems that use frequency hopping for wireless transmissions.
Background
Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, information delivery, broadcast, and so on. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing the available network resources. Such a network may be a multiple-access network supporting communication for multiple users by sharing the available network resources.
The wireless communication network may include some components. These components may include wireless communication devices, such as base stations (or node bs) that may support communication for several User Equipments (UEs). The UE may communicate with the base station via downlink and uplink. The downlink (or forward link) refers to the communication link from the base stations to the UEs, and the uplink (or reverse link) refers to the communication link from the UEs to the base stations.
The base station may transmit data and control information to the UE on the downlink or receive data and control information from the UE on the uplink. On the downlink, transmissions from a base station may experience interference resulting from transmissions from neighboring base stations or other wireless Radio Frequency (RF) transmitters. On the uplink, transmissions from a UE may experience interference from uplink transmissions from other UEs communicating with a neighboring base station or from other wireless RF transmitters. Such interference may degrade performance on both the downlink and uplink.
As the demand for mobile broadband access continues to grow, the likelihood of interfering and crowded networks increases as more UEs access to the long range wireless communication network and more short range wireless systems are deployed in the community. Research and development continues to advance wireless technology to not only meet the ever-increasing demand for mobile broadband access, but also to promote and enhance the user experience with mobile communications.
Disclosure of Invention
In some aspects of the disclosure, an apparatus for wireless communication includes a transmitter configured to communicate with a base station based on a first uplink bandwidth portion (BWP) that includes a first subset of frequencies and further includes a second subset of frequencies. The apparatus also includes a receiver configured to receive one or more messages from the base station that include a frequency hopping indicator that specifies whether to enable or disable a frequency hopping mode. The transmitter is further configured to transmit an uplink control channel transmission to the base station using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator specifying that the hopping mode is enabled; or transmitting an uplink control channel transmission to the base station using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying disabling of the hopping pattern.
In some other aspects, an apparatus for wireless communication includes a receiver configured to receive, from a base station, a first indication of bandwidth associated with the base station, and further configured to receive, from the base station, a second indication of a first uplink BWP. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The apparatus also includes a transmitter configured to transmit uplink signal transmissions to the base station using both the first subset of frequencies and the second subset of frequencies based at least in part on the first uplink BWP exceeding a threshold value based at least in part on the bandwidth associated with the base station, or to transmit uplink signal transmissions to the base station using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold value.
In some other aspects, a method of wireless communication performed by a UE includes receiving one or more messages from a base station that include a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled for the UE. The UE is associated with a first uplink BWP comprising a first subset of frequencies and a second subset of frequencies. The method further includes sending an uplink control channel transmission to the base station using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping pattern; or send an uplink control channel transmission to the base station using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying disabling of the hopping pattern.
In some other aspects, a method of wireless communication performed by a UE includes receiving a first indication of bandwidth associated with a base station from the base station, and further comprising receiving a second indication of a first uplink BWP from the base station. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The method includes transmitting uplink signal transmissions to the base station using both the first subset of frequencies and the second subset of frequencies based on the first uplink BWP exceeding a threshold value based at least in part on the bandwidth associated with the base station, or transmitting uplink signal transmissions to the base station using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold value.
In some other aspects, an apparatus for wireless communication includes a receiver configured to communicate with a UE based on a first uplink BWP associated with the UE. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The apparatus further includes a transmitter configured to transmit one or more messages to the UE including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled, the receiver further configured to receive uplink control channel transmissions from the UE using both the first subset of frequencies and the second subset of frequencies based on the frequency hopping indicator specifying that the frequency hopping mode is enabled; or based on the hopping indicator specifying disabling of the hopping pattern, receiving an uplink control channel transmission from the UE using one of the first subset of frequencies or the second subset of frequencies.
In some other aspects, an apparatus for wireless communication includes a transmitter configured to transmit a first indication of bandwidth associated with a base station to a UE and further configured to transmit a second indication of a first uplink BWP to the UE. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The apparatus also includes a receiver configured to receive uplink signal transmissions from the UE using both the first subset of frequencies and the second subset of frequencies based at least in part on the first uplink BWP exceeding a threshold value based at least in part on the bandwidth associated with the base station, or to receive uplink signal transmissions from the UE using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold value.
In some other aspects, a method of wireless communication performed by a base station includes transmitting one or more messages to a UE that include a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled for the UE. The UE is associated with a first uplink BWP comprising a first subset of frequencies and a second subset of frequencies. The method also includes designating, based on the frequency hopping indicator, to enable the frequency hopping mode, receiving uplink control channel transmissions from the UE using both the first subset of frequencies and the second subset of frequencies; or based on the hopping indicator specifying disabling of the hopping pattern, receiving an uplink control channel transmission from the UE using one of the first subset of frequencies or the second subset of frequencies.
In some other aspects, a method of wireless communication performed by a base station includes transmitting a first indication of bandwidth associated with the base station to a UE, and further comprising transmitting a second indication of a first uplink BWP to the UE. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The method also includes receiving uplink signal transmissions from the UE using both the first subset of frequencies and the second subset of frequencies based at least in part on the first uplink BWP exceeding a threshold value based at least in part on the bandwidth associated with the base station, or receiving uplink signal transmissions from the UE using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold value.
Although aspects and embodiments are described in this application by way of illustration of some examples, those skilled in the art will appreciate that additional embodiments and use cases may be created in many other arrangements and scenarios. The innovations described herein may be implemented across many different platform types, devices, systems, shapes, sizes, package arrangements. For example, various aspects and/or uses may be implemented via integrated chip embodiments and other non-module component based devices (e.g., end user devices, vehicles, communication devices, computing devices, industrial devices, retail/purchasing devices, medical devices, artificial Intelligence (AI) enabled devices, etc.). While some examples may or may not be specifically directed to use cases or applications, applicability of the various types of innovations described may occur. Implementations may range from chip-level or module components to non-module, non-chip-level implementations, and further to aggregated, distributed or Original Equipment Manufacturer (OEM) devices or systems incorporating one or more aspects of the described innovations. In some practical environments, devices incorporating the described aspects and features may also necessarily include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals must include several components (e.g., hardware components including antennas, radio Frequency (RF) chains, power amplifiers, modulators, buffers, processor(s), interleavers, adders/summers, etc.) for analog and digital purposes. The innovations described herein are intended to be implemented in a variety of devices, chip-scale components, systems, distributed arrangements, end-user devices, etc., having different sizes, shapes, and configurations.
Drawings
A further understanding of the nature and advantages of the present disclosure may be realized by reference to the following drawings. In the drawings, similar components or features may have the same reference numerals. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description applies to any one of the similar components having the same first reference label, regardless of the second reference label.
Fig. 1 is a block diagram illustrating details of an example wireless communication system in accordance with some aspects of the present disclosure.
Fig. 2 is a block diagram illustrating an example of a base station and a User Equipment (UE) in accordance with some aspects of the present disclosure.
Fig. 3 is a block diagram illustrating an example of a wireless communication system in accordance with some aspects of the present disclosure.
Fig. 4 is a diagram illustrating an example of a resource allocation scheme according to some aspects of the present disclosure.
Fig. 5 is a diagram illustrating an example of a first uplink bandwidth portion (BWP), a second uplink BWP, and a third uplink BWP according to some aspects of the present disclosure.
Fig. 6 is a diagram illustrating additional examples of a first uplink BWP, a second uplink BWP, and a third uplink BWP according to some aspects of the present disclosure.
Fig. 7 is a block diagram illustrating another example of a wireless communication system in accordance with some aspects of the present disclosure.
Fig. 8 is a flowchart illustrating an example of a method of wireless communication performed by a UE in accordance with some aspects of the present disclosure.
Fig. 9 is a flowchart illustrating an example of a method of wireless communication performed by a base station in accordance with some aspects of the present disclosure.
Fig. 10 is a flowchart illustrating another example of a method of wireless communication performed by a UE in accordance with some aspects of the present disclosure.
Fig. 11 is a flowchart illustrating an example of a method of wireless communication performed by a base station in accordance with some aspects of the present disclosure.
Fig. 12 is a block diagram illustrating an example of a UE in accordance with some aspects of the present disclosure.
Fig. 13 is a block diagram illustrating an example of a base station in accordance with some aspects of the present disclosure.
Like reference numbers and designations in the various drawings indicate like elements.
Detailed Description
Wireless communication systems increasingly support different types of devices with different capabilities. For example, a wireless communication system may include one or more User Equipments (UEs) of a first capability type and may further include one or more UEs of a second capability type different from the first capability type. In some embodiments, the first capability type may correspond to a "reduced capability" (RedCap) capability type. In some embodiments, the RedCap device may enable a reduction in cost, a reduction in device size, or a reduction in power consumption. The second capability type may correspond to a non-RedCap capability type, such as an embedded mobile broadband (eMBB) capability type, an ultra-reliable low latency communication (URLLC) capability type, or another capability type.
In some cases, a UE of one capability type may introduce noise or interference to another UE of another capability type. As an illustrative example, the RedCap UE may transmit signals using frequencies within a first uplink bandwidth portion (BWP) associated with the RedCap UE. In some cases, the first uplink BWP may overlap (e.g., may be a subset of) a second uplink BWP associated with another UE (such as a non-RedCap UE). Thus, the frequencies used by the RedCap UE may not be available to non-RedCap UEs.
In some examples, the second uplink BWP that is not the RedCap may experience resource fragmentation due to the use of frequency by the RedCap UE. For example, if the frequencies used by the RedCap UE include two frequency subsets of the second uplink BWP, the second uplink BWP may be segmented into three non-contiguous frequency regions. In some embodiments, the transmission by the RedCap UE using three non-contiguous frequency regions may involve three different packets (e.g., rather than a single packet that may be transmitted using a single contiguous non-segmented frequency region). Thus, the latency associated with non-RedCap UEs may increase, which may be undesirable in some applications (such as in the case of some eMBB or URLLC applications).
In some aspects of the disclosure, the UE may selectively enable or disable frequency hopping for uplink control channel transmissions. In some cases, disabling frequency hopping may reduce or avoid resource fragmentation for the second UE. For example, if frequency hopping is disabled, the uplink control channel transmission may use a subset of frequencies of the first uplink BWP associated with the UE instead of using multiple subsets of frequencies of the first uplink BWP. Thus, in some examples, resource fragmentation of the second uplink BWP associated with the second UE may be reduced. In some embodiments, the subset of frequencies may be aligned with a frequency boundary of the second uplink BWP to further reduce or avoid resource fragmentation of the second uplink BWP.
Depending on the particular example, the enabling or disabling of frequency hopping may be performed using explicit or implicit techniques. In an example of explicit techniques, a base station may transmit a frequency hopping indicator that specifies whether frequency hopping is enabled or disabled for a UE. In some embodiments, the base station may transmit a frequency hopping indicator based on the capability type of the UE (e.g., an indication that the UE is associated with a RedCap capability type). To illustrate, the UE may indicate the capability type in a message associated with a Random Access Channel (RACH) procedure, such as a type one message (msg 1) of a four-step RACH procedure, a type three message (msg 3) of a four-step RACH procedure, or a type a message (msgA) of a two-step RACH procedure. As an illustrative example, the base station may include a frequency hopping indicator in a type two message (msg 2) or a type four message (msg 4) of the four-step RACH procedure, a message scheduling msg2 or msg4, a type B message (msgB) of the two-step RACH procedure, a message scheduling msgB, or a combination of a downlink channel and a control channel.
In implicit techniques, a UE may compare a first uplink BWP associated with the UE to a threshold based on a system bandwidth associated with a base station. The UE may enable frequency hopping for uplink control channel transmissions if the first uplink BWP exceeds a threshold. The UE may disable frequency hopping for uplink control channel transmissions if the first uplink BWP fails to exceed the threshold. In some examples, the threshold corresponds to a product of a system bandwidth and a particular value. As an illustrative example, the particular value may be specified by the base station or by the wireless communication protocol.
By selectively disabling frequency hopping, performance of one or more UEs may be improved. For example, by disabling frequency hopping in the event that a first uplink BWP of a RedCap UE is included in one or more of the second uplink BWPs of non-RedCap UEs, resource fragmentation associated with the second uplink BWPs may be reduced or avoided. Thus, the number of packets used by non-RedCap UEs to transmit data may be reduced, which may reduce latency in some cases.
To further illustrate, in various embodiments, one or more aspects described herein may be used in wireless communication networks, such as 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, LTE networks, GSM networks, fifth generation (5G) or New Radio (NR) networks (sometimes referred to as "5G NR" networks, systems or devices), as well as other communication networks. As described herein, the terms "network" and "system" are used interchangeably.
CDMA networks may implement radio technologies such as Universal Terrestrial Radio Access (UTRA), CDMA2000, and the like, for example. UTRA includes wideband CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers IS-2000, IS-95, and IS-856 standards.
For example, a TDMA network may implement a radio technology such as global system for mobile communications (GSM). The third generation partnership project (3 GPP) defines standards for the GSM EDGE (enhanced data rates for GSM evolution) Radio Access Network (RAN), also known as GERAN. GERAN is a radio component of GSM/EDGE along with a network connecting base stations (e.g., the Ater and Abis interfaces) and base station controllers (a interfaces, etc.). The radio access network represents a component of the GSM network through which telephone calls and packet data are routed from the Public Switched Telephone Network (PSTN) and the internet to and from subscriber handsets (also known as user terminals or User Equipment (UE)). The network of the mobile telephone operator may comprise one or more GERANs, which in the case of a UMTS/GSM network may be coupled with the UTRAN. In addition, the operator network may also include one or more LTE networks, or one or more other networks. Various different network types may use different Radio Access Technologies (RATs) and RANs.
OFDMA networks may implement radio technologies such as evolved UTRA (E-UTRA), institute of Electrical and Electronics Engineers (IEEE) 802.11, IEEE 802.16, IEEE 802.20, flash-OFDM, and the like. UTRA, E-UTRA and GSM are part of Universal Mobile Telecommunications System (UMTS). In particular, long Term Evolution (LTE) is a version of UMTS that uses E-UTRA. UTRA, E-UTRA, GSM, UMTS and LTE are described in documents provided by an organization named "third generation partnership project" (3 GPP), and cdma2000 is described in documents from an organization named "third generation partnership project 2" (3 GPP 2). These various radio technologies and standards are known or under development. For example, 3GPP is a collaboration between the telecommunications associations community that aims to define the globally applicable third generation (3G) mobile phone specifications. 3GPP LTE is a 3GPP project that aims at improving the UMTS mobile telephony standard. The 3GPP may define specifications for next generation mobile networks, mobile systems, and mobile devices. The present disclosure may describe certain aspects with reference to LTE, 4G, or 5G NR technologies; however, the description is not intended to be limited to a particular technology or application, and one or more aspects described with reference to one technology may be understood as applicable to another technology. Additionally, one or more aspects of the present disclosure may relate to shared access to wireless spectrum between networks using different radio access technologies or radio air interfaces.
The 5G network contemplates a diverse deployment, a diverse spectrum, and a diverse service and device that can be implemented using an OFDM-based unified air interface. To achieve these goals, further enhancements to LTE and LTE-a are considered in addition to developing new radio technologies for 5G NR networks. The 5G NR will be able to scale to (1) provide coverage to large-scale internet of things (IoT) with ultra-high density (e.g., about 1M node/km 2), ultra-low complexity (e.g., about tens of bits/second), ultra-low energy (e.g., about 10+ years battery life), and provide deep coverage with the ability to reach challenging locations; (2) Providing coverage including high security with protection sensitive personal, financial, or classified information, ultra-high reliability (e.g., about 99.9999% reliability), ultra-low latency (e.g., about 1 millisecond (ms)), and mission critical control for users with a wide range of mobility or lack of mobility; and (3) provide coverage with enhanced mobile broadband (including very high capacity (e.g., about 10Tbps/km 2), very high data rates (e.g., multiple Gbps rates, 100+Mbps user experience rates)) and with advanced discovery and optimized depth awareness.
Devices, networks, and systems may be configured to communicate via one or more portions of the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc., based on frequency or wavelength. In 5G NR, two initial operating bands have been identified as frequency range names FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). The frequency between FR1 and FR2 is commonly referred to as the mid-band frequency. Although a portion of FR1 is greater than 6GHz, FR1 is often (interchangeably) referred to as the "below 6GHz" band in various documents and articles. Similar naming problems sometimes occur for FR2, which in documents and articles is commonly (interchangeably) referred to as the "millimeter wave" (mmWave) frequency band, although it differs from the Extremely High Frequency (EHF) frequency band (30 GHz-300 GHz) identified by the International Telecommunications Union (ITU) as the "millimeter wave" frequency band.
In view of the above, unless specifically stated otherwise, it should be understood that, if used herein, the term "below 6GHz" and the like may broadly represent frequencies that may be less than 6GHz, may be within FR1, or may include mid-band frequencies. Furthermore, unless explicitly stated otherwise, it is to be understood that: the term "mmWave" or the like, if used herein, may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band.
The 5G NR device, network and system may be implemented to use waveform characteristics based on optimized OFDM. These characteristics may include an extensible parameter set and Transmission Time Interval (TTI); a common, flexible framework that utilizes a dynamic, low-latency Time Division Duplex (TDD) design or a Frequency Division Duplex (FDD) design to efficiently multiplex services and features; and advanced wireless technologies such as massive Multiple Input Multiple Output (MIMO), robust millimeter wave transmission, advanced channel coding, and device-centric mobility. The scalability of the digital parameters and the scaling of the subcarrier spacing in 5G NR can effectively address the operation of various services across different spectrum and deployments. For example, in various outdoor and macro coverage deployments of less than 3GHz FDD/TDD embodiments, the subcarrier spacing may occur at 15kHz, e.g., bandwidths in excess of 1MHz, 5MHz, 10MHz, 20MHz, etc. For other various outdoor and small cell coverage deployments where TDD is greater than 3GHz, the subcarrier spacing may occur at 30kHz over 80/100MHz bandwidth. For other various indoor wideband embodiments, using TDD on the unlicensed portion of the 5GHz band, subcarrier spacing may occur at 60kHz over 160MHz bandwidth. Finally, for various deployments with transmission through mmWave components at 28GHz TDD, the subcarrier spacing may occur at 120kHz over 500MHz bandwidth.
The scalable set of parameters for 5G NR contributes to scalable TTI for diversified latency and quality of service (QoS) requirements. For example, shorter TTIs may be used for low latency and high reliability, while longer TTIs may be used for higher spectral efficiency. Efficient multiplexing of long and short TTIs allows transmission to begin on symbol boundaries. The 5G NR also contemplates a self-contained integrated subframe design in which uplink or downlink scheduling information, data, and acknowledgements are in the same subframe. The self-contained integrated subframes support communication in unlicensed or contention-based shared spectrum, and the adaptive uplink or downlink may be flexibly configured on a per-cell basis to dynamically switch between uplink and downlink to meet current traffic demands.
For clarity, certain aspects of the apparatus and techniques may be described below with reference to example 5G NR embodiments or in a 5G-centric manner, and 5G terminology may be used as an illustrative example in the sections described below; however, the description is not intended to be limited to 5G applications.
Further, it should be appreciated that in operation, a wireless communication network adapted according to the concepts herein may operate with any combination of licensed spectrum or unlicensed spectrum depending on load and availability. It will be apparent to those of ordinary skill in the art, therefore, that the systems, apparatus, and methods described herein may be applied to other communication systems and applications in addition to the specific examples provided.
Although aspects and embodiments are described in this application by way of illustration of some examples, those skilled in the art will appreciate that additional embodiments and use cases may be created in many other arrangements and scenarios. The innovations described herein may be implemented across many different platform types, devices, systems, shapes, sizes, package arrangements. For example, the embodiments or uses may be implemented via integrated chip embodiments or other non-module component based devices (e.g., end user devices, vehicles, communication devices, computing devices, industrial equipment, retail or purchasing devices, medical devices, AI-enabled devices, etc.). While some examples may or may not be specifically directed to use cases or applications, applicability of the various types of innovations described may occur. Embodiments may range from chip-level or modular components to non-modular, non-chip-level embodiments, and further to an aggregate, distributed, or Original Equipment Manufacturer (OEM) device or system incorporating one or more aspects of the described innovations. In some practical environments, devices incorporating the described aspects and features may also necessarily include additional components and features for implementing and practicing the claimed and described aspects. It is intended that the innovations described herein may be practiced in a wide variety of specific embodiments of different sizes, shapes, and configurations, including large or small devices, chip-scale components, multi-component systems (e.g., radio Frequency (RF) chains, communication interfaces, processors), distributed arrangements, end user devices, and so forth.
Fig. 1 is a block diagram illustrating details of an exemplary wireless communication system in accordance with one or more aspects. The wireless communication system may include a wireless network 100. The wireless network 100 may, for example, comprise a 5G wireless network. As will be appreciated by those skilled in the art, the components appearing in fig. 1 are likely to have associated corresponding components in other network arrangements, including, for example, cellular style network arrangements as well as non-cellular style network arrangements (e.g., device-to-device or peer-to-peer or ad hoc network arrangements, etc.).
The wireless network 100 shown in fig. 1 includes a number of base stations 105 and other network entities. A base station may be a station in communication with a UE and may also be referred to as an evolved node B (eNB), a next generation eNB (gNB), an access point, etc. Each base station 105 may provide communication coverage for a particular geographic area. In 3GPP, the term "cell" can refer to this particular geographic coverage area of a base station or a base station subsystem serving this coverage area, depending on the context in which the term is used. In particular embodiments of wireless network 100 herein, base stations 105 may be associated with the same operator or different operators (e.g., wireless network 100 may include multiple operator wireless networks). In addition, in particular embodiments of wireless network 100 herein, base station 105 may provide wireless communications using one or more of the same frequencies as neighboring cells (e.g., one or more frequency bands in a licensed spectrum, an unlicensed spectrum, or a combination thereof). In some examples, a single base station 105 or UE 115 may be operated by more than one network operating entity. In some other examples, each base station 105 and UE 115 may be operated by a single network operating entity.
A base station may provide communication coverage for a macrocell or a small cell (e.g., a picocell or a femtocell) or other type of cell. A macrocell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription with the network provider. A small cell (such as a pico cell) will typically cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription with the network provider. A small cell (e.g., a femto cell) will also typically cover a relatively small geographic area (e.g., a home), and may provide limited access by UEs having an association with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG), UEs of users in a home, etc.), in addition to unrestricted access. The base station of a macro cell may be referred to as a macro base station. A base station for a small cell may be referred to as a small cell base station, pico base station, femto base station, or home base station. In the example shown in fig. 1, base stations 105D and 105e are conventional macro base stations, while base stations 105a-105c are macro base stations implemented with one of 3-dimensional (3D), full-dimensional (FD), or massive MIMO. The base stations 105a-105c take advantage of their higher dimensional MIMO capabilities to employ 3D beamforming in elevation and azimuth beamforming to increase coverage and capacity. Base station 105f is a small cell base station, which may be a home node or a portable access point. A base station may support one or more (e.g., two, three, four, etc.) cells.
The wireless network 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, the base stations may have different frame timings, and transmissions from different base stations may not be aligned in time. In some cases, the network may be enabled or configured to handle dynamic switching between synchronous or asynchronous operations.
The UEs 115 are dispersed throughout the wireless network 100 and each UE may be stationary or mobile. It should be appreciated that while in the standards and specifications promulgated by 3GPP, mobile devices are commonly referred to as UEs, such devices may additionally or otherwise be referred to by those skilled in the art as Mobile Stations (MSs), subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless communication devices, remote devices, mobile subscriber stations, access Terminals (ATs), mobile terminals, wireless terminals, remote terminals, handsets, terminals, user agents, mobile clients, gaming devices, augmented reality devices, vehicle components, vehicle devices or vehicle modules, or some other suitable terminology. In this document, a "mobile" device or UE does not necessarily have the capability to move, and may be stationary. Some non-limiting examples of mobile devices may include, for example, specific implementations of one or more UEs 115, including mobile phones, cellular phones, smart phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, laptops, personal Computers (PCs), notebooks, netbooks, smartbooks, tablets, and Personal Digital Assistants (PDAs). The mobile device may additionally be an IoT or "internet of things" (IoE) device, such as an automobile or other conveyance, satellite radio, global Positioning System (GPS) device, global Navigation Satellite System (GNSS) device, logistics controller, drone, multi-rotor helicopter, quad-rotor helicopter, smart energy or security device, solar panel or solar array, urban lighting, tap water, or other infrastructure; industrial automation and enterprise equipment; consumer and wearable devices such as eyeglasses, wearable cameras, smart watches, health or fitness trackers, mammalian implantable devices, gesture tracking devices, medical devices, digital audio players (e.g., MP3 players), cameras, game consoles, and the like; and digital home or smart home devices such as home audio, video and multimedia devices, appliances, sensors, vending machines, smart lighting, home security systems, smart meters, etc. In one aspect, the UE may be a device that includes a Universal Integrated Circuit Card (UICC). On the other hand, the UE may be a device that does not include a UICC. In some aspects, UEs that do not include UICCs may also be referred to as IoE devices. The UEs 115a-115d of the particular embodiment shown in fig. 1 are examples of mobile smart phone type devices that access the wireless network 100. The UE may also be a machine specifically configured for connection communications, including Machine Type Communications (MTC), enhanced MTC (eMTC), narrowband IoT (NB-IoT), and the like. The UEs 115e-115k shown in fig. 1 are examples of various machines configured for communication that access the wireless network 100.
A mobile device such as UE 115 may be capable of communicating with any type of base station, whether macro, pico, femto, relay, etc. In fig. 1, the communication link (denoted by lightning) indicates a wireless transmission between the UE and a serving base station (which is a base station designated to serve the UE on the downlink or uplink), or a desired transmission between base stations and a backhaul transmission between base stations. The UE may operate as a base station or other network node in some scenarios. Backhaul communications between base stations of wireless network 100 may be conducted using wired or wireless communication links.
In operation, at wireless network 100, base stations 105a-105c serve UEs 115a and 115b using 3D beam-forming and coordinated spatial techniques, such as coordinated multipoint (CoMP) or multi-connection. Macro base station 105d performs backhaul communications with base stations 105a-105c and small cell base station 105 f. Macro base station 105d also transmits multicast services subscribed to and received by UEs 115c and 115 d. Such multicast services may include mobile televisions or streaming video, or may include other services for providing community information, such as weather emergencies or alerts, such as amber alerts or gray alerts.
The wireless network 100 of an embodiment supports mission critical communications with ultra-reliable and redundant links for mission critical devices such as the UE 115e as an unmanned aerial vehicle. The redundant communication links with UE 115e include links from macro base stations 105d and 105e and small cell base station 105 f. Other machine type devices such as UE 115f (thermometer), UE 115g (smart meter) and UE 115h (wearable device) may communicate directly with base stations such as small cell base station 105f and macro base station 105e through wireless network 100 or in a multi-hop configuration by communicating with another user device relaying its information to the network, such as UE 115f transmitting temperature measurement information communication to smart meter UE 115g which is then reported to the network through small cell base station 105 f. The wireless network 100 may also provide additional network efficiency (e.g., in a vehicle-to-vehicle (V2V) mesh network between UEs 115i-115k communicating with the macro base station 105 e) through dynamic, low latency TDD communications or low latency FDD communications.
In some aspects of the disclosure, the base station 105 of fig. 1 may transmit a Frequency Hopping (FH) indicator 150 to indicate to the UE 115 whether to enable or disable frequency hopping for the UE 115. To illustrate, in some examples, base station 105d may send FH indicator 150 to UE 115c to indicate whether to enable or disable frequency hopping for UE 115 c. UE 115c may enable or disable frequency hopping based on FH indicator 150, as described further below.
Fig. 2 is a block diagram illustrating an example of a base station 105 and a UE 115 in accordance with one or more aspects. Base station 105 and UE 115 may be any one of the base stations and one of the UEs in fig. 1. For a restricted association scenario (as described above), the base station 105 may be the small cell base station 105f in fig. 1, and the UE 115 may be a UE 115c or 115d operating in the service area of the base station 105f, which is to be included in the list of accessible UEs of the small cell base station 105f in order to access the small cell base station 105 f. The base station 105 may also be some other type of base station. As shown in fig. 2, base station 105 may be equipped with antennas 234a through 234t and UE 115 may be equipped with antennas 252a through 252r for facilitating wireless communications.
At the base station 105, a transmit processor 220 may receive data from a data source 212 and control information from a processor 240 (such as a processor). The control information may be used 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), and the like. The data may be used for a Physical Downlink Shared Channel (PDSCH) or the like. In addition, the transmit processor 220 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. The transmit processor 220 may also generate reference symbols, e.g., for Primary Synchronization Signals (PSS) and Secondary Synchronization Signals (SSS), as well as cell-specific reference signals. A Transmit (TX) MIMO processor 230 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, or reference symbols, if applicable, and may provide output symbol streams to Modulators (MODs) 232a through 232 t. For example, spatial processing performed on data symbols, control symbols, or reference symbols may include precoding. Each modulator 232 may process a 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 upconvert) the output sample stream to obtain a downlink signal. Downlink signals from modulators 232a through 232t may be transmitted via antennas 234a through 234t, respectively.
At the UE 115, antennas 252a through 252r may receive the downlink signals from the base station 105 and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a 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. A MIMO detector 256 may obtain received symbols from demodulators 254a through 254r, perform MIMO detection on the received symbols if required, and provide detected symbols. A receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 115 to a data sink 260, and provide decoded control information to a processor 280, such as a processor.
On the uplink, at UE 115, transmit processor 264 may receive and process data from data source 262 (e.g., for a Physical Uplink Shared Channel (PUSCH)) and control information from processor 280 (e.g., for a Physical Uplink Control Channel (PUCCH)). In addition, transmit processor 264 may also generate reference symbols for the reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if necessary, further processed by modulators 254a through 254r (e.g., for SC-FDM, etc.), and transmitted to base station 105. At the base station 105, the uplink signals from the UE 115 may be received by the antennas 234, processed by the demodulators 232, detected by a MIMO detector 236 if needed, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 115. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a processor 240.
Processors 240 and 280 may direct the operation at base station 105 and UE 115, respectively. The processor 240 or other processor and module at the base station 105 or the processor 280 or other processor and module at the UE 115 may perform or direct the performance of various processes for the techniques described herein, such as the performance shown in fig. 8-11, or the performance of other processes for the techniques described herein (such as the transmission and reception of the FH indicator 150). Memories 242 and 282 may store data and program codes for base station 105 and UE 115, respectively. The scheduler 244 may schedule UEs for data transmission on the downlink or uplink.
In some cases, the UE 115 and the base station 105 may operate in a shared radio frequency spectrum, which may include licensed or unlicensed (e.g., contention-based) spectrum. In the unlicensed frequency portion of the shared radio frequency spectrum band, the UE 115 or the base station 105 may conventionally perform a medium sensing procedure to contend for access to the spectrum. For example, the UE 115 or base station 105 may perform a listen before talk or Listen Before Talk (LBT) procedure, such as Clear Channel Assessment (CCA), prior to communication in order to determine whether a shared channel is available. In some embodiments, the CCA may include an energy detection procedure to determine whether there are any other active transmissions. For example, the device may infer that a change in the Received Signal Strength Indicator (RSSI) of the power meter indicates that the channel is occupied. In particular, signal power concentrated in a certain bandwidth and exceeding a predetermined noise floor may be indicative of another wireless transmitter. The CCA may also include detection of a particular sequence indicating use of the channel. For example, another device may transmit a particular preamble prior to transmitting the data sequence. In some cases, the LBT procedure may include the wireless node adjusting its own backoff window based on the amount of energy detected on the channel or acknowledgement/negative acknowledgement (ACK/NACK) feedback (as a manifestation of collision) for its own transmitted packets.
Fig. 3 is a block diagram illustrating an example of a wireless communication system 300 in accordance with some aspects of the present disclosure. The wireless communication system 300 may include one or more base stations, such as base station 105. The wireless communication system 300 may further include one or more UEs, such as UE 115x, UE 115y, and UE 115z. In some examples, UEs 115x-z correspond to UEs 115 shown in fig. 1.
The example of fig. 3 shows that the base station 105 may include one or more processors (such as processor 240) and may include memory 242. The base station 105 may further include a transmitter 306 and a receiver 308. Processor 240 may be coupled to memory 242, to transmitter 306, and to receiver 308. In some examples, transmitter 306 and receiver 308 include one or more components described with reference to fig. 2, such as one or more of modulators/demodulators 232a-t, MIMO detector 236, receive processor 238, transmit processor 220, or TX MIMO processor 230. In some embodiments, the transmitter 306 and receiver 308 may be integrated in one or more transceivers of the base station 105.
The transmitter 306 may be configured to transmit reference signals, synchronization signals, control information, and data to one or more other devices, and the receiver 308 may be configured to receive reference signals, control information, and data from one or more other devices. For example, the transmitter 306 may be configured to transmit signaling, control information, and data to the UEs 115x-z, and the receiver 308 may be configured to receive signaling, control information, and data from the UEs 115 x-z.
Each UE 115x-z may include one or more processors (such as processor 280), memory (such as memory 282), a transmitter (such as transmitter 356), and a receiver (such as receiver 358). The processor 280 may be coupled to the memory 282, to the transmitter 356, and to the receiver 358. In some examples, transmitter 356 and receiver 358 may include one or more components described with reference to fig. 2, such as one or more of modulators/demodulators 254a-r, MIMO detector 256, receive processor 258, transmit processor 264, or TX MIMO processor 266. In some embodiments, the transmitter 356 and the receiver 358 may be integrated in one or more transceivers of the UE 115.
The transmitter 356 may be configured to transmit reference signals, synchronization signals, control information, and data to one or more other devices, and the receiver 358 may be configured to receive reference signals, control information, and data from one or more other devices. For example, in some embodiments, the transmitter 356 may be configured to transmit signaling, control information, and data to the base station 105, and the receiver 358 may be configured to receive signaling, control information, and data from the base station 105.
In some embodiments, one or more of the transmitter 306, the receiver 308, the transmitter 356, or the receiver 358 may include an antenna array. The antenna array may include a plurality of antenna elements that perform wireless communications with other devices. In some implementations, the antenna array may perform wireless communications using different beams (also referred to as antenna beams). The beams may include a transmit beam and a receive beam. To illustrate, the antenna array may include multiple independent sets (or subsets) (or multiple independent antenna arrays) of antenna elements, and each set of antenna elements of the antenna array may be configured to communicate using a different respective beam, which may have a different respective direction than the other beams. For example, a first set of antenna elements of the antenna array may be configured to communicate via a first beam having a first direction and a second set of antenna elements of the antenna array may be configured to communicate via a second beam having a second direction. In other embodiments, the antenna array may be configured to communicate via more than two beams. In some implementations, one or more sets of antenna elements of an antenna array may be configured to concurrently generate multiple beams, e.g., using multiple RF chains. The set (or subset) of antenna elements may include a plurality of antenna elements, such as two antenna elements, four antenna elements, ten antenna elements, twenty antenna elements, or any other number of antenna elements greater than two. Although described as an antenna array, in other embodiments, the antenna array may include or correspond to a plurality of antenna panels, and each antenna panel may be configured to communicate using a different respective beam.
In some embodiments, wireless communication system 300 operates according to a 5G NR network. For example, the wireless communication system 300 may include a plurality of 5G capable UEs 115 and a plurality of 5G capable base stations 105, such as UEs and base stations configured to operate according to a 5G NR network protocol (such as defined by 3 GPP).
In some examples, one or more UEs 115 may be associated with a particular capability type. In some examples, UEs 115x and 115z are associated with a first capability type and UE 115y is associated with a second capability type that is different from the first capability type. In some embodiments, the first capability type may correspond to a "reduced capability" (RedCap) capability type, and the second capability type may correspond to a non-RedCap capability type, such as an embedded mobile broadband (eMBB) capability type, an ultra-reliable low latency communication (URLLC) capability type, or another capability type. In some examples, as illustrative examples, UE 115x and UE 115z may correspond to wearable devices, medical monitoring devices, sensor devices, internet of things (IoT) devices, or smart city devices (such as surveillance cameras).
To further illustrate, in some embodiments, UE 115x, UE 115y, and UE 115z may communicate with base station 105 using a first uplink bandwidth portion (BWP) 362 (e.g., a default uplink BWP for UE 115 x), a second uplink BWP 372, and a third uplink BWP 382, respectively. In some examples, first uplink BWP 362 and third uplink BWP 382 include less bandwidth than second uplink BWP 372 (e.g., to reduce power consumption associated with UE 115x and UE 115 z). Each of the uplink BWP 362, 372, and 382 may correspond to an initial uplink BWP or an active uplink BWP. To illustrate, the first uplink BWP 362 may correspond to an initial uplink BWP used by the UE 115x before a Radio Resource Control (RRC) connection is established between the base station 105 and the UE 115 x. In some other examples, the first uplink BWP 362 may correspond to an active uplink BWP configured by the base station 105 after establishing the RRC connection between the base station 105 and the UE 115 x.
During operation, the transmitter 356 may operate based on the first uplink BWP 362. For example, the transmitter 356 may be configured to transmit the uplink control channel transmission 330 within the first uplink BWP 362 to the base station 105 (e.g., where the uplink control channel transmission 330 is transmitted using frequency resources included in the first uplink BWP 362). The uplink control channel transmission 330 may indicate Uplink Control Information (UCI) 334 associated with the UE 115 x. In some examples, uplink control channel transmission 330 corresponds to a Physical Uplink Control Channel (PUCCH) transmission.
In some implementations, transmitter 356 can be configured to perform uplink control channel transmission 330 based on FH mode 360. During operation based on FH mode 360, transmitter 356 may change (or "hop") between transmitting using first subset of frequencies 364 of first uplink BWP 362 and second subset of frequencies 366 of first uplink BWP 362. In some cases, performing uplink control channel transmission 330 based on FH mode 360 may be associated with reduced performance (such as resource fragmentation) of one or more other UEs 115.
For illustration, fig. 4 is a diagram illustrating an example of a resource allocation scheme 400 in accordance with some aspects of the present disclosure. In an example of the resource allocation scheme 400, the first uplink BWP 362 is smaller than the second uplink BWP 372 (e.g., includes a smaller frequency range than the second uplink BWP). During FH mode 360-based operation of transmitter 356, UE 115y may experience resource fragmentation. For example, if transmitter 356 uses first subset of frequencies 364 and second subset of frequencies 366 during FH mode 360, frequencies corresponding to first subset of frequencies 364 and second subset of frequencies 366 may not be available to (or may not be assigned to) UE 115 y. Thus, the resources of the second uplink BWP 372 may be divided (or segmented) into three non-contiguous frequency ranges.
In some aspects of the disclosure, base station 105 may transmit FH indicator 150 to selectively enable or disable FH mode 360. Disabling FH mode 360 may reduce or avoid resource fragmentation of second uplink BWP 372. For example, when FH mode 360 is disabled, UE 115x may perform uplink control channel transmission 330 based on one (but not both) of first frequency subset 364 or second frequency subset 366, which may reduce or avoid fragmentation of second uplink BWP 372.
For further explanation, referring again to fig. 3, base station 105 may send one or more messages 320 including FH indicator 150 to UE 115 x. In some examples, UE 115x sends message 310 to base station 105 indicating a capability type 314 of UE 115x, and base station 105 sends FH indicator 150 to UE 115x based on capability type 314. In some examples, capability type 314 indicates that UE 115x corresponds to a RedCap UE. In such examples, capability type 314 may correspond to a RedCap capability type, which may be associated with a reduced uplink bandwidth as compared to at least one other capability type (such as an eMBB capability type or a URLLC capability type in some embodiments). Alternatively or additionally, as an illustrative example, the capability type 314 may indicate one or more other parameters, such as one or more of a bandwidth or a center frequency of the first uplink BWP 362.
In some examples, message 310 corresponds to a type-one message (msg 1) associated with a four-step Random Access Channel (RACH) procedure 342 (e.g., a contention-based RACH procedure), the msg1 indicating a capability type 314. In some such examples, the one or more messages 320 may include or correspond to one of a type four message (msg 4) associated with the four-step RACH procedure 342, a downlink control channel transmission scheduled for msg4, or a combination of downlink control channel transmission and downlink data channel transmission. Regarding the combination of the downlink control channel transmission and the downlink data channel transmission, at least a first bit of FH indicator 150 is included in the downlink control channel transmission and at least a second bit of FH indicator 150 is included in the downlink data channel transmission. In such examples, UE 115x may perform joint decoding or joint processing of downlink control channel transmissions and downlink data channel transmissions to identify FH indicator 150, which may in some cases improve the reliability of the transmission of FH indicator 150.
In some other examples, message 310 corresponds to a type three (msg 3) message associated with four-step RACH procedure 342 and having one of a demodulation reference signal (DMRS) configuration indicating capability type 314, a payload indicating capability type 314, or a scrambling identifier indicating capability type 314. In some such examples, the one or more messages 320 may include or correspond to one of message four (msg 4), downlink control channel transmission scheduled msg4, or a combination of downlink control channel transmission and downlink data channel transmission associated with the four-step RACH procedure 342.
In some other examples, message 310 corresponds to a type a message (msgA) associated with two-step RACH procedure 344 (e.g., a contention-free RACH procedure) and having one of a preamble indicating capability type 314, a DMRS configuration indicating capability type 314, a payload indicating capability type 314, or a scrambling identifier indicating a payload of capability type 314. In some such examples, the one or more messages 320 may include or correspond to one of a type B message (msgB), a downlink control channel message scheduling msgB, or a combination of downlink control channel transmissions and downlink data channel transmissions associated with the two-step RACH procedure 344.
To further illustrate, in an example of the four-step RACH procedure 342, the UE 115x may transmit msg1 to indicate a random access preamble selected by the UE 115x and the base station 105 may transmit msg2 to indicate a response to the random access preamble including the uplink resource allocation. UE 115x may transmit msg3 to base station 105 using the uplink resource allocation and base station 105 may transmit a contention resolution message to UE 115x via msg 4. In an example of the two-step RACH procedure 344, the base station 105 may assign a random access preamble to the UE 115x and may indicate the assigned random access preamble to the UE 115 x. UE 115x may transmit the assigned random access preamble to base station 105 via msgA, and base station 105 may transmit a random access response to msgA to UE 115x via msgB.
In some other examples, the one or more messages 320 may include or correspond to another message transmitted regardless of the RACH type associated with the UE 115 x. For example, the one or more messages 320 may include or correspond to System Information (SI) messages associated with the base station 105. In some examples, base station 105 transmits SI messages using a broadcast technique that may enable SI messages to be received by multiple UEs, such as UEs 115 x-z.
FH indicator 150 may include a bit 324 with a value indicating whether FH mode 360 is enabled or disabled. To illustrate, bit 324 may indicate a first value and transmitter 356 may perform uplink control channel transmission 330 using FH mode 360 based on the first value of bit 324. In some other examples, bit 324 may indicate a second value different from the first value, and the transmitter may disable FH mode 360 for uplink control channel transmission 330 based on the second value of bit 324. In such examples, the transmitter 356 may use one (but not both) of the first subset of frequencies 364 or the second subset of frequencies 366 to perform the uplink control channel transmission 330. In some embodiments, the first value corresponds to a logical zero value and the second value corresponds to a logical one value. In some other embodiments, the first value corresponds to a logical one value and the second value corresponds to a logical zero value.
In some implementations, FH indicator 150 may optionally include a first set of one or more bits 326 that indicate resource set 346 within first uplink BWP 362. For example, the memory 282 may store a resource set table, and the first set of one or more bits 326 may correspond to an index to the resource set table. Processor 280 may identify resource set 346 based on first set of one or more bits 326 and transmitter 356 may perform uplink control channel transmission 330 based on resource set 374. In some examples, the first set of one or more bits 326 may indicate the first subset of frequencies 364, the second subset of frequencies 366, or other frequency resources included in the first uplink BWP 362.
In some examples, at least a subset of the resource sets 346 are shared with or partially overlap with at least one other resource set of at least one other device having the same or different capability type as the UE 115 x. For example, resource set 346 may include at least one common resource with resource set 374 of UE 115y, and UE 115y may have a different capability type than UE 115 x. As another example, resource set 346 may include at least one common resource with resource set 384 of UE 115z, and UE 115z may have the same capability type as UE 115 x. In some examples, resource set 374 may correspond to an initial uplink BWP or an active uplink BWP of UE 115y, and resource set 384 may correspond to an initial uplink BWP or an active uplink BWP of UE 115 z.
In some other examples, resource set 346 is separate from one or more other resource sets of at least one other device having the same or different capability type as UE 115 x. For example, resource set 346 may be separate from resource set 374 of UE 115y (and may not include at least one common resource with the resource set), and UE 115y may have a different capability type than UE 115 x. As another example, resource set 346 may be separate from resource set 384 of UE 115z, and UE 115z may have the same capability type as UE 115 x.
Alternatively or additionally, FH indicator 150 may optionally include a second set of one or more bits 328 that indicate a repetition number 348, and transmitter 356 may perform one or more repetitions 332 of uplink control channel transmission 330 based on repetition number 348. In some examples, performing one or more repetitions 332 can improve reliability associated with uplink control channel transmission 330. To illustrate, disabling FH mode 360 may reduce the frequency diversity gain associated with uplink control channel transmission 330, and performing one or more repetitions 332 may compensate for the reduced frequency diversity gain (e.g., by increasing the time diversity gain associated with uplink control channel transmission 330).
In some examples, base station 105 transmits one or more messages 320 using broadcast transmission techniques. Depending on the particular example, the base station 105 may send one or more messages 320 before or after the initial access procedure by the UE 115x (e.g., using broadcast transmission techniques). The initial access procedure may include establishing an RRC connection between the base station 105 and the UE 115. In some other examples, base station 105 transmits one or more messages 320 using unicast transmission techniques. Depending on the particular example, the base station 105 may send one or more messages 320 using unicast transmission techniques and using one of RRC connection or Medium Access Control (MAC) control element (MAC-CE) signaling.
Although some examples of uplink control channel transmission 330 may be described as a single signal or a single transmission, in some other examples, uplink control channel transmission 330 may include multiple uplink signals within first uplink BWP 362. In such examples, bits of UCI 334 may be allocated (or "shared") among a plurality of uplink signals within first uplink BWP 362. Further, FH indicator 150 may be shared among multiple uplink signals (e.g., by enabling or disabling FH mode 360 for each of the multiple uplink signals based on the value of bit 324). In some examples, the plurality of uplink signals include one or more of a Physical Uplink Control Channel (PUCCH) signal, a Physical Uplink Shared Channel (PUSCH) signal, a Sounding Reference Signal (SRS), or a Physical Random Access Channel (PRACH) signal, as illustrative examples.
Fig. 5 is a diagram illustrating an example of a first uplink BWP 362, a second uplink BWP 372, and a third uplink BWP 382 according to some aspects of the present disclosure. Fig. 5 illustrates that the first subset of frequencies 364 of the first uplink BWP 372 may be aligned with the first boundary 502 of the second uplink BWP 362 (e.g., the lowest frequency included in the second uplink BWP 372).
Aligning first subset of frequencies 364 with first boundary 502 of second uplink BWP 372 may reduce or avoid resource fragmentation of second uplink BWP 372 during FH mode 360-based operation of transmitter 356. For example, if resources of the first subset of frequencies 364 are not available to the UE 115y during the uplink control channel transmission 330, the contiguous set of resources 504 may be available to the UE 115y (e.g., instead of multiple non-contiguous sets of resources that may be caused by resource fragmentation). In some examples, the number of packets transmitted by UE 115y may be reduced by reducing or avoiding resource fragmentation (e.g., by enabling transmission of data in a single packet using contiguous resource group 504, rather than using multiple packets using multiple non-contiguous resource groups). Thus, data throughput and performance may be improved.
The example of fig. 5 also shows that the first subset of frequencies 364 may be aligned with a third subset of frequencies 506 of a third uplink BWP 382 associated with a third device (e.g., UE 115 z). Accordingly, resource fragmentation to the second uplink BWP 372 due to transmissions by the UE 115z using the third frequency subset 506 may be reduced or avoided.
Fig. 6 is a diagram illustrating additional examples of a first uplink BWP 362, a second uplink BWP 372, and a third uplink BWP 382 according to some aspects of the present disclosure. Fig. 6 illustrates that the second boundary 602 of the second uplink BWP 372 may be aligned with the fourth subset of frequencies 606 of the third uplink BWP 382 associated with the third device (e.g., UE 115 z). In some embodiments, the example of fig. 6 may reduce interference between transmissions of UE 115x and UE 115y (due to the use of different frequency subsets 364, 606 for these transmissions) while also enabling continuous resource group 604 for UE 115y, thereby reducing or avoiding resource fragmentation for UE 115 y.
Referring again to fig. 3, in some examples, base station 105 sets FH indicator 150 based on resource allocation 302. The resource allocation 302 may track or indicate resources allocated to UEs of the wireless communication system 300, such as UEs 115 x-z. As an illustrative example, if first uplink BWP 362 is included in second uplink BWP 372, base station 105 may set FH indicator 150 to indicate disabling FH mode 360 and may optionally indicate use of resources of second frequency subset 366 via first set of one or more bits 326. Alternatively or additionally, the base station 105 may perform alignment of uplink BWP based on the resource allocation 302, such as by aligning the frequency subsets 364, 506 with the first boundary 502, or by aligning the first frequency subset 364 with the first boundary 502 and the fourth frequency subset 606 with the second boundary 602.
Although certain examples have been described with reference to an explicit FH indication technique (such as using bits 324), in some other examples, UE 115 may determine whether to perform FH according to the implicit FH indication technique. Instead of, or in addition to, explicit FH indication techniques, implicit FH indication techniques may be used. For example, in some embodiments, if UE 115x fails to receive an explicit indication of FH indicator 150 from base station 105, UE 115x may use an implicit FH indication technique to determine whether to enable or disable FH mode 360. An example of an implicit FH indication technique is further described with reference to fig. 7.
Fig. 7 is a block diagram illustrating another example of a wireless communication system 700 in accordance with some aspects of the present disclosure. The wireless communication system 700 may include one or more base stations, such as base station 105. The wireless communication system 300 may further include one or more UEs, such as UE 115x, UE 115y, and UE 115z.
During operation, the base station 105 may transmit an indication of a bandwidth 712 associated with the base station 105 (such as a serving cell system bandwidth associated with the base station 105). In some examples, base station 105 may transmit a System Information (SI) message 710 including a first indication of bandwidth 712. The base station 105 may transmit the first indication of the bandwidth 712 using a broadcast transmission technique.
One or more of UEs 115x-z may receive the first indication of bandwidth 712 and may decode the first indication to identify bandwidth 712. For example, UE 115x may receive SI message 710 and may decode SI message 710 to identify bandwidth 712.
The base station 105 may transmit a second indication of the first uplink BWP 362 associated with the UE 115 x. In some examples, the second indication of the first uplink BWP 362 is included in the SI message 710. In some such examples, UE 115x may decode SI message 710 to identify first uplink BWP 362. In some other examples, the second indication of the first uplink BWP 362 is included in an RRC configuration message 720 transmitted by the base station 105 to the UE 115x after establishing the RRC connection with the UE 115 x. In some such examples, UE 115x may decode RRC configuration message 720 to identify first uplink BWP 362. In some other examples, the second indication of the first uplink BWP 362 may be included in another message. Depending on the particular example, the first uplink BWP 362 may correspond to an initial BWP of the UE 115x or an active BWP of the UE 115 x.
In some aspects of the disclosure, UE 115x may determine whether first uplink BWP 362 exceeds threshold 750. For example, processor 280 may compare a first number of hertz (Hz) corresponding to first uplink BWP 362 to a second number of hertz (Hz) corresponding to threshold 750 to determine whether first uplink BWP 362 exceeds threshold 750. The threshold 750 may be based at least in part on the bandwidth 712.
UE 115x may enable (or disable) FH mode 360 based on whether first uplink BWP 362 exceeds (or fails to exceed) threshold 750. To illustrate, in some examples, processor 280 may determine that first uplink BWP 362 exceeds threshold 750. In such examples, processor 280 may enable FH mode 360 and transmitter 356 may perform uplink control channel transmission 330 based on FH mode 360. In some other examples, processor 280 may determine that first uplink BWP 362 fails to exceed threshold 750. In such examples, processor 280 may disable FH mode 360 and transmitter 356 may perform uplink control channel transmission 330 without using FH mode 360.
In some embodiments, threshold 750 is based on bandwidth 712 and parameter 752 (e.g., a coefficient having a positive or non-negative value). In some examples, threshold 750 corresponds to a product of bandwidth 712 and parameter 752. In some embodiments, the parameter 752 is determined by the network device (e.g., base station 105) and indicated to the UE 115x in system information (e.g., via SI message 710) or using RRC signaling (e.g., via RRC configuration message 720 or via another message). In some other examples, base station 105 and UE 115x operate according to a wireless communication protocol, such as a 5G NR wireless communication protocol, and the wireless communication protocol specifies parameters 752 based on one or more of bandwidth 712, a maximum bandwidth associated with a device type (e.g., a maximum bandwidth supported by capability type 314 of fig. 3), or a first uplink BWP 362 configured by a network device based on the device type.
In some examples, one or more of the first subset of frequencies 364 or the second subset of frequencies 366 includes a first contiguous group of one or more Physical Resource Blocks (PRBs). As a non-limiting illustrative example, the first subset of frequencies 364 may include a contiguous group of two contiguous PRBs and the second subset of frequencies 366 may include a contiguous group of three contiguous PRBs.
In some examples, one or more of the first subset of frequencies 364 or the second subset of frequencies 366 spans a second contiguous set of symbols within a slot or a third contiguous set of symbols within a plurality of slots. To illustrate, if one or more of first subset of frequencies 364 or second subset of frequencies 366 spans a contiguous set of symbols within a slot, FH mode 360 may correspond to or may be referred to as an intra-slot frequency hopping mode. FH mode 360 may correspond to or may be referred to as an inter-slot frequency hopping mode if one or more of first subset of frequencies 364 or second subset of frequencies 366 spans successive groups of symbols within multiple slots.
In some examples, the first subset of frequencies 364 does not overlap the second subset of frequencies 366. For example, when FH mode 360 is enabled for uplink control channel transmission 330 in first uplink BWP 362, the PRBs of first frequency subset 364 may not overlap with (and may not be included in) the PRBs of second frequency subset 366.
One or more examples described herein may improve performance of one or more UEs, such as UE 115 y. For example, by disabling FH mode 360 in the event that first uplink BWP 362 is included in one or more of second uplink BWP 372, resource fragmentation associated with second uplink BWP 372 may be reduced or avoided. Thus, the number of packets used by the UE 115y to transmit data to the base station 105 may be reduced, which may reduce latency in some cases.
Fig. 8 is a flow chart illustrating an example of a method 800 of wireless communication performed by a UE in accordance with some aspects. In some examples, method 800 is performed by UE 115.
The method 800 includes receiving one or more messages from a base station that include a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled for a UE, at 802. The UE is associated with a first uplink BWP comprising a first subset of frequencies and a second subset of frequencies. For example, UE 115x may receive (e.g., using receiver 358) FH indicator 150 indicating whether FH mode 360 is enabled or disabled for UE 115 x.
The method 800 further includes transmitting an uplink control channel transmission to the base station at 804. The uplink control channel transmission is transmitted using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator specifying that the hopping mode is enabled, or the uplink control channel transmission is transmitted using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying that the hopping mode is disabled. For example, based on FH indicator 150 indicating that FH mode 360 is enabled, ue 115x may perform uplink control channel transmission 330 (e.g., using transmitter 356) using both first frequency subset 364 and second frequency subset 366, such as by changing (or "hopping") between transmissions using first frequency subset 364 and second frequency subset 366. In some other examples, based on FH indicator 150 indicating disabling FH mode 360, ue 115x may perform uplink control channel transmission 330 (e.g., using transmitter 356) using one (but not both) of first subset of frequencies 364 or second subset of frequencies 366.
Fig. 9 is a flow chart illustrating an example of a method 900 of wireless communication performed by a base station in accordance with some aspects. In some examples, method 900 is performed by base station 105.
The method 900 includes transmitting, at 902, one or more messages to a UE that include a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled for the UE. The UE is associated with a first uplink BWP comprising a first subset of frequencies and a second subset of frequencies. For example, base station 105 may transmit (e.g., using transmitter 306) FH indicator 150 indicating whether FH mode 360 is enabled or disabled for UE 115 x.
The method 900 further includes receiving an uplink control channel transmission from the UE at 904. The uplink control channel transmission is received using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator specifying an enabled hopping pattern or the uplink control channel transmission is received using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying a disabled hopping pattern. For example, based on FH indicator 150 indicating that FH mode 360 is enabled, base station 105 may perform uplink control channel transmission 330 (e.g., using receiver 308) using both first frequency subset 364 and second frequency subset 366, such as by changing (or "hopping") between transmissions using first frequency subset 364 and second frequency subset 366. In some other examples, based on FH indicator 150 indicating disabling FH mode 360, base station 105 may receive (e.g., using transmitter 308) uplink control channel transmission 330 using one (but not both) of first subset of frequencies 364 or second subset of frequencies 366.
Fig. 10 is a flow chart illustrating an example of a method 1000 of wireless communication performed by a UE in accordance with some aspects. In some examples, method 1000 is performed by UE 115.
The method 1000 includes receiving, at 1002, a first indication of a bandwidth associated with a base station from the base station.
The method 1000 further includes receiving a second indication of the first uplink BWP from the base station at 1004. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies.
The method 1000 also includes transmitting an uplink signal transmission to the base station at 1006. Uplink signal transmissions are transmitted using both the first subset of frequencies and the second subset of frequencies based at least in part on the first uplink BWP exceeding a threshold value based at least in part on a bandwidth associated with the base station, or using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold value.
Fig. 11 is a flow chart illustrating an example of a method 1100 of wireless communication performed by a base station in accordance with some aspects. In some examples, method 1100 is performed by base station 105.
The method 1100 includes transmitting, to a UE, a first indication of a bandwidth associated with a base station at 1102.
The method 1100 further includes transmitting, to the UE, a second indication of the first uplink BWP at 1104. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies.
The method 1100 further includes receiving an uplink signal transmission from the UE at 1106. The uplink signal transmission is received using both the first subset of frequencies and the second subset of frequencies based at least in part on the first uplink BWP exceeding a threshold value based at least in part on a bandwidth associated with the base station, or using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold value.
Fig. 12 is a block diagram illustrating an example of a UE 115 according to some aspects of the present disclosure. The UE 115 may include the structure, hardware, or components shown in fig. 2. For example, UE 115 may include a processor 280 that may execute instructions stored in a memory 282. Using processor 280, ue 115 may transmit and receive signals via radios 1201a-r and antennas 252 a-r. The radios 1201a-r may include one or more components or devices described herein, such as one or more of modulators/demodulators 254a-r, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, transmitter 356, receiver 358, or one or more other components or devices.
In some embodiments, memory 282 may store FH mode determination instructions 1202 executable by processor 280 to identify (e.g., based on the value of bit 324 of FH indicator 150) whether to enable or disable FH mode 360. Memory 282 may store FH transmission instructions 1204 executable by processor 280 to perform uplink control channel transmission 330 using FH mode 360 based on FH indicator 150 specifying that FH mode 360 is to be enabled. Memory 282 may store non-FH transmission instructions 1206 executable by processor 280 to specify that FH mode 360 is to be disabled based on FH indicator 150 to perform uplink control channel transmission 330 without using FH mode 360.
Fig. 13 is a block diagram illustrating an example of a base station 105 in accordance with some aspects of the present disclosure. The base station 105 may include the structure, hardware, and components shown in fig. 2. For example, the base station 105 may include a processor 240 that may execute instructions stored in a memory 242. Under control of the processor 240, the base station 105 may transmit and receive signals via the radios 1301a-t and the antennas 234 a-t. The radios 1301a-t may include one or more components or devices described herein, such as one or more of the modulators/demodulators 232a-t, MIMO detector 236, receive processor 238, transmit processor 220, TX MIMO processor 230, transmitter 306, receiver 308, or one or more other components or devices.
In some embodiments, memory 242 may store FH mode determination instructions 1302 executable by processor 240 to select whether to enable or disable FH mode 360 (e.g., by setting a value of bit 324 of FH indicator 150, which may be based on resource allocation 302). Memory 242 may store FH receive instructions 1304 executable by processor 240 to receive uplink control channel transmission 330 based on FH mode 360 in response to FH indicator 150 specifying that FH mode 360 is to be enabled. Memory 242 may store non-FH receive instructions 1306 executable by processor 240 to receive uplink control channel transmission 330 without using FH mode 360 in response to FH indicator 150 specifying that FH mode 360 is to be disabled.
To further illustrate some aspects of the present invention, in a first aspect, an apparatus for wireless communication includes a transmitter configured to communicate with a base station based on a first uplink bandwidth portion (BWP) comprising a first subset of frequencies and further comprising a second subset of frequencies. The apparatus also includes a receiver configured to receive one or more messages from the base station that include a frequency hopping indicator that specifies whether to enable or disable a frequency hopping mode. The transmitter is further configured to: transmitting an uplink control channel transmission to the base station using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping mode; or transmitting an uplink control channel transmission to the base station using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying disabling of the hopping pattern.
In a second aspect alone or in combination with the first aspect, the first uplink BWP corresponds to a default uplink BWP of the device.
In a third aspect alone or in combination with one or more of the first or second aspects, the transmitter is further configured to transmit a message indicating a capability type of the apparatus, and wherein the frequency hopping indicator is based on the capability type.
In a fourth aspect, alone or in combination with one or more of the first through third aspects, the capability type corresponds to a reduced capability (RedCap) capability type associated with reduced uplink bandwidth as compared to at least one other capability type.
In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the transmitter is further configured to transmit a type-one message (msg 1) associated with a four-step Random Access Channel (RACH) procedure and indicating a capability type of the apparatus, receive the one or more messages based on the capability type, and the one or more messages include one of a type-four message (msg 4) associated with the four-step RACH procedure, schedule a downlink control channel transmission of the msg4, or a combination of a downlink control channel transmission and a downlink data channel transmission.
In a sixth aspect alone or in combination with one or more of the first through fifth aspects, the transmitter is further configured to transmit a type three message (msg 3) associated with a four-step Random Access Channel (RACH) procedure, one of a demodulation reference signal (DMRS) configuration of the msg3, a payload of the msg3, or a scrambling identifier of the msg3 indicating a capability type of the apparatus, the one or more messages are received based on the capability type, and the one or more messages include one of a message four (msg 4) associated with the four-step RACH procedure, a downlink control channel transmission scheduled for the msg4, or a combination of a downlink control channel transmission and a downlink data channel transmission.
In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the transmitter is further configured to transmit a type a message (msgA) associated with a two-step Random Access Channel (RACH) procedure, one of a preamble of the msgA, a demodulation reference signal (DMRS) configuration of the msgA, a payload of the msgA, or a scrambling identifier of the payload indicating a capability type of the apparatus, and to receive the one or more messages based on the capability type.
In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the one or more messages comprise one of a type B message (msgB) associated with the two-step RACH procedure, a downlink control channel message scheduling the msgB, or a combination of downlink control channel transmissions and downlink data channel transmissions.
In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the one or more messages comprise a System Information (SI) message associated with the base station.
In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the frequency hopping indicator comprises bits, and the transmitter is further configured to: the uplink control channel transmission is performed using the frequency hopping pattern based on the first value of the bit.
In an eleventh aspect alone or in combination with one or more of the first through tenth aspects, the transmitter is further configured to: based on the second value of the bit, the frequency hopping pattern for the uplink control channel transmission is disabled.
In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the frequency hopping indicator comprises a first set of one or more bits indicating a set of resources within the first uplink BWP, and the transmitter is further configured to perform the uplink control channel transmission based on the set of resources within the first uplink BWP.
In a thirteenth aspect alone or in combination with one or more of the first through twelfth aspects, the frequency hopping indicator includes a second set of one or more bits indicating a repetition number, and the transmitter is further configured to perform one or more repetitions of the uplink control channel transmission based on the repetition number.
In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the one or more messages are transmitted using a broadcast transmission technique before or after the initial access procedure.
In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the one or more messages are transmitted using unicast transmission techniques using one of Radio Resource Control (RRC) connection or medium access control (MAC-CE) signaling.
In a sixteenth aspect alone or in combination with one or more of the first through fifteenth aspects, the frequency hopping indicator specifies that the frequency hopping mode is enabled and the uplink control channel transmission is performed based on the frequency hopping mode and a set of resources that are shared with or partially overlap with at least one other set of resources used by at least one other device.
In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, the hopping indicator specifies that the hopping mode is enabled, and the transmitter is further configured to perform the uplink control channel transmission based on the hopping mode and a set of resources separate from one or more sets of resources associated with at least one other set of resources used by at least one other device.
In an eighteenth aspect alone or in combination with one or more of the first through seventeenth aspects, the frequency hopping indicator specifies that the frequency hopping mode is enabled and further indicates a set of resources, and the transmitter is further configured to perform the uplink control channel transmission within the first uplink BWP based on the frequency hopping mode and the set of resources.
In a nineteenth aspect alone or in combination with one or more of the first through eighteenth aspects, the frequency hopping indicator specifies disabling the frequency hopping pattern, and the transmitter is further configured to perform the uplink control channel transmission without the frequency hopping pattern and based on at least a subset of a set of resources that are shared with or partially overlap with at least one other set of resources used by at least one other device.
In a twentieth aspect, alone or in combination with one or more of the first through nineteenth aspects, the frequency hopping indicator specifies disabling the frequency hopping pattern, and the transmitter is further configured to perform the uplink control channel transmission without the frequency hopping pattern and based on a set of resources separate from one or more sets of resources associated with at least one other set of resources used by at least one other device.
In a twenty-first aspect, alone or in combination with one or more of the first through twentieth aspects, the frequency hopping indicator specifies disabling the frequency hopping pattern and further indicates a set of resources, and the transmitter is further configured to perform the uplink control channel transmission without the frequency hopping pattern and based on the set of resources.
In a twenty-second aspect, alone or in combination with one or more of the first to twenty-first aspects, the frequency hopping indicator specifies disabling the frequency hopping pattern and further indicates a repetition number, and the transmitter is further configured to perform one or more repetitions of the uplink control channel transmission without the frequency hopping pattern and based on the repetition number.
In a twenty-third aspect, alone or in combination with one or more of the first to twenty-second aspects, the first subset of frequencies of the first uplink BWP is aligned with a first boundary of a second uplink BWP associated with at least one other device to reduce or avoid resource fragmentation of the second uplink BWP during operation of the transmitter based on the frequency hopping pattern.
In a twenty-fourth aspect alone or in combination with one or more of the first to twenty-third aspects, the first subset of frequencies is aligned with a third subset of frequencies of a third uplink BWP associated with a third device.
In a twenty-fifth aspect alone or in combination with one or more of the first to twenty-fourth aspects, the second boundary of the second uplink BWP is aligned with a fourth subset of frequencies of a third uplink BWP associated with a third device.
In a twenty-sixth aspect, alone or in combination with one or more of the first to twenty-fifth aspects, the hopping indicator for uplink control information is shared among a plurality of uplink signals within the first uplink BWP and the plurality of uplink signals includes one or more of a Physical Uplink Control Channel (PUCCH) signal, a Physical Uplink Shared Channel (PUSCH) signal, a Sounding Reference Signal (SRS) or a Physical Random Access Channel (PRACH) signal.
In a twenty-seventh aspect alone or in combination with one or more of the first through twenty-sixth aspects, an apparatus for wireless communication includes a receiver configured to receive a first indication of bandwidth associated with a base station from the base station and further configured to receive a second indication of a first uplink bandwidth portion (BWP) from the base station. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The apparatus further includes a transmitter configured to: transmitting uplink signal transmissions to the base station using both the first subset of frequencies and the second subset of frequencies based on the first uplink BWP exceeding a threshold value based at least in part on the bandwidth associated with the base station; or transmitting an uplink signal transmission to the base station using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold.
In a twenty-eighth aspect, alone or in combination with one or more of the first through twenty-seventh aspects, the uplink signal transmission comprises a plurality of uplink signals, and the plurality of uplink signals comprises one or more of a Physical Uplink Control Channel (PUCCH) signal, a Physical Uplink Shared Channel (PUSCH) signal, a Sounding Reference Signal (SRS), or a Physical Random Access Channel (PRACH) signal.
In a twenty-ninth aspect, alone or in combination with one or more of the first through twenty-eighth aspects, the threshold corresponds to a product of a bandwidth associated with the base station and a parameter having a non-negative value.
In a thirty-first aspect alone or in combination with one or more of the first through twenty-ninth aspects, the parameter is determined by a network device and indicated to the apparatus in system information or using Radio Resource Control (RRC) signaling.
In a thirty-first aspect, alone or in combination with one or more of the first to thirty-first aspects, the base station and the apparatus are configured to operate according to a wireless communication protocol, and the wireless communication protocol specifies the parameter based on one or more of the bandwidth of the base station, a maximum bandwidth associated with a device type, or the first uplink BWP configured by a network device based on the device type.
In a thirty-second aspect alone or in combination with one or more of the first to thirty-first aspects, the receiver is further configured to receive a System Information (SI) message from the base station comprising the first indication and the second indication.
In a thirty-third aspect alone or in combination with one or more of the first through thirty-second aspects, the receiver is further configured to: receiving a System Information (SI) message including the first indication from the base station; and receiving a Radio Resource Control (RRC) configuration message including the second indication from the base station.
In a thirty-fourth aspect, alone or in combination with one or more of the first through thirty-fourth aspects, a method of wireless communication performed by a User Equipment (UE) includes receiving one or more messages from a base station including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled for the UE. The UE is associated with a first uplink bandwidth portion (BWP) that includes a first subset of frequencies and a second subset of frequencies. The method further comprises the steps of: transmitting an uplink control channel transmission to the base station using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping mode; or transmitting an uplink control channel transmission to the base station using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying disabling of the hopping pattern.
In a thirty-fifth aspect alone or in combination with one or more of the first to thirty-fifth aspects, one or more of the first or second subsets of frequencies comprises a first contiguous group of one or more Physical Resource Blocks (PRBs), one or more of the first or second subsets of frequencies spans a second contiguous group of symbols within a slot or a third contiguous group of symbols within a plurality of slots, and the first subset of frequencies does not overlap with the second subset of frequencies when the frequency hopping pattern is enabled for the uplink control channel transmission in the first uplink BWP.
In a thirty-sixth aspect alone or in combination with one or more of the first through thirty-fifth aspects, the method comprises transmitting a type-one message (msg 1) associated with a four-step Random Access Channel (RACH) procedure and indicating a capability type of the UE, and receiving the one or more messages based on the capability type.
In a thirty-seventh aspect alone or in combination with one or more of the first through thirty-sixth aspects, the one or more messages comprise one of a type four message (msg 4) associated with the four-step RACH procedure, a downlink control channel transmission scheduled for the msg4, or a combination of a downlink control channel transmission and a downlink data channel transmission.
In a thirty-eighth aspect, alone or in combination with one or more of the first through thirty-seventh aspects, the method includes transmitting a type three message (msg 3) associated with a four-step Random Access Channel (RACH) procedure, one of a demodulation reference signal (DMRS) configuration of the msg3, a payload of the msg3, or a scrambling identifier of the msg3 indicating a capability type of the UE, and receiving the one or more messages based on the capability type.
In a thirty-ninth aspect alone or in combination with one or more of the first through thirty-eighth aspects, the one or more messages comprise one of message four (msg 4) associated with the four-step RACH procedure, a downlink control channel transmission scheduled for the msg4, or a combination of downlink control channel transmission and downlink data channel transmission.
In a fortieth aspect, alone or in combination with one or more of the first through thirty-ninth aspects, the method comprises transmitting a type a message (msgA) associated with a two-step Random Access Channel (RACH) procedure, one of a preamble of the msgA, a demodulation reference signal (DMRS) configuration of the msgA, a payload of the msgA, or a scrambling identifier of the payload indicating a capability type of the UE, and receiving the one or more messages based on the capability type.
In a fortieth aspect, alone or in combination with one or more of the first through fortieth aspects, the one or more messages comprise one of a type B message (msgB) associated with the two-step RACH procedure, a downlink control channel message scheduling the msgB, or a combination of downlink control channel transmission and downlink data channel transmission.
In a forty-second aspect, alone or in combination with one or more of the first through forty-first aspects, the one or more messages include a System Information (SI) message associated with the base station.
In a forty-third aspect alone or in combination with one or more of the first through forty-second aspects, the frequency hopping indicator comprises a bit and the uplink control channel transmission is performed using the frequency hopping pattern based on a first value of the bit.
In a forty-fourth aspect alone or in combination with one or more of the first through forty-third aspects, the method includes disabling the frequency hopping pattern for the uplink control channel transmission based on a second value of the bit.
In a forty-fifth aspect alone or in combination with one or more of the first through forty-fourth aspects, the frequency hopping indicator comprises a first set of one or more bits indicating a set of resources within the first uplink BWP and the uplink control channel transmission is performed based on the set of resources within the first uplink BWP.
In a forty-sixth aspect alone or in combination with one or more of the first through forty-fifth aspects, the frequency hopping indicator includes a second set of one or more bits indicating a repetition number, and the method includes performing one or more repetitions of the uplink control channel based on the repetition number.
In a forty-seventh aspect, alone or in combination with one or more of the first through forty-sixth aspects, the one or more messages are transmitted using a broadcast transmission technique before or after the initial access procedure.
In a forty-eighth aspect, alone or in combination with one or more of the first through forty-seventh aspects, the one or more messages are transmitted using unicast transmission techniques using one of Radio Resource Control (RRC) connection or Medium Access Control (MAC) control element (MAC-CE) signaling.
In a forty-ninth aspect alone or in combination with one or more of the first through forty-eighth aspects, the frequency hopping indicator specifies that the frequency hopping mode is enabled, and the uplink control channel transmission is performed based on the frequency hopping mode and a set of resources that are shared with or partially overlap with at least one other set of resources used by at least one other device.
In a fifty-fifth aspect, alone or in combination with one or more of the first through forty-ninth aspects, the frequency hopping indicator specifies that the frequency hopping mode is enabled and the uplink control channel transmission is performed based on the frequency hopping mode and a set of resources separate from one or more sets of resources associated with at least one other set of resources used by at least one other device.
In a fifty-first aspect, alone or in combination with one or more of the first to fifty-first aspects, the frequency hopping indicator specifies that the frequency hopping mode is enabled and further indicates a set of resources, and the uplink control channel transmission is performed based on the frequency hopping mode and the set of resources.
In a fifty-second aspect, alone or in combination with one or more of the first to fifty aspects, the frequency hopping indicator specifies disabling the frequency hopping pattern and the uplink control channel transmission is performed without the frequency hopping pattern and based on at least a subset of a set of resources that are shared with or partially overlap with at least one other set of resources used by at least one other device.
In a fifty-third aspect, alone or in combination with one or more of the first through fifty-second aspects, the frequency hopping indicator specifies disabling the frequency hopping pattern and the uplink control channel transmission is performed without the frequency hopping pattern and based on a set of resources separate from one or more sets of resources associated with at least one other set of resources used by at least one other device.
In a twenty-fourth aspect alone or in combination with one or more of the first through fifty-third aspects, the frequency hopping indicator specifies disabling the frequency hopping pattern and further indicates a set of resources, and the uplink control channel transmission is performed without the frequency hopping pattern and based on the set of resources.
In a fifty-fifth aspect, alone or in combination with one or more of the first through fifty-fourth aspects, the frequency hopping indicator specifies disabling the frequency hopping pattern and further indicates a number of repetitions, and the method includes performing one or more repetitions of the uplink control channel transmission without the frequency hopping pattern and based on the number of repetitions.
In a fifty-sixth aspect, alone or in combination with one or more of the first to fifty-fifth aspects, the first subset of frequencies of the first uplink BWP is aligned with a first boundary of a second uplink BWP associated with at least one other device to reduce or avoid resource fragmentation of the second uplink BWP during operation based on the frequency hopping pattern.
In a fifty-seventh aspect alone or in combination with one or more of the first through fifty-sixth aspects, the first subset of frequencies is aligned with a third subset of frequencies of a third uplink BWP associated with a third device.
In a twenty-eighth aspect alone or in combination with one or more of the first through fifty-seventh aspects, the second boundary of the second uplink BWP is aligned with a fourth subset of frequencies of a third uplink BWP associated with a third device.
In a fifty-ninth aspect alone or in combination with one or more of the first to fifty-eighth aspects, the frequency hopping indicator for uplink control information is shared among a plurality of uplink signals within the first uplink BWP and the plurality of uplink signals includes one or more of a Physical Uplink Control Channel (PUCCH) signal, a Physical Uplink Shared Channel (PUSCH) signal, a Sounding Reference Signal (SRS), or a Physical Random Access Channel (PRACH) signal.
In a sixty aspect, alone or in combination with one or more of the first through fifty-ninth aspects, a method of wireless communication performed by a User Equipment (UE) includes receiving a first indication of bandwidth associated with a base station from the base station and further including receiving a second indication of a first uplink bandwidth portion (BWP) from the base station. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The method comprises the following steps: transmitting uplink signal transmissions to the base station using both the first subset of frequencies and the second subset of frequencies based on the first uplink BWP exceeding a threshold value based at least in part on the bandwidth associated with the base station; or transmitting an uplink signal transmission to the base station using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold.
In a sixtieth aspect, alone or in combination with one or more of the first through sixtieth aspects, the uplink signal transmission comprises a plurality of uplink signals, and the plurality of uplink signals comprises one or more of a Physical Uplink Control Channel (PUCCH) signal, a Physical Uplink Shared Channel (PUSCH) signal, a Sounding Reference Signal (SRS), or a Physical Random Access Channel (PRACH) signal.
In a sixty-second aspect alone or in combination with one or more of the first through sixty aspects, the threshold corresponds to a product of a bandwidth associated with the base station and a parameter having a non-negative value.
In a sixty-third aspect, alone or in combination with one or more of the first through sixty-third aspects, the parameters are determined by a network device and indicated to the UE in system information or using Radio Resource Control (RRC) signaling.
In a sixty-fourth aspect alone or in combination with one or more of the first through sixty-third aspects, the base station and the UE are configured to operate according to a wireless communication protocol, and the wireless communication protocol specifies the parameter based on one or more of the bandwidth of the base station, a maximum bandwidth associated with a device type, or the first uplink BWP configured by a network device based on the device type.
In a sixty-fifth aspect alone or in combination with one or more of the first through sixty-fourth aspects, the method comprises receiving a System Information (SI) message from the base station comprising the first indication and the second indication.
In a sixty-sixth aspect alone or in combination with one or more of the first through sixty-fifth aspects, the method comprises: receiving a System Information (SI) message including the first indication from the base station; and receiving a Radio Resource Control (RRC) configuration message including the second indication from the base station.
In a sixty-seventh aspect alone or in combination with one or more of the first through sixty-sixth aspects, an apparatus for wireless communication comprises a receiver configured to communicate with a User Equipment (UE) based on a first uplink bandwidth portion (BWP) associated with the UE. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The apparatus also includes a transmitter configured to transmit one or more messages to the UE including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled, the receiver further configured to: receiving an uplink control channel transmission from the UE using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping mode; or based on the hopping indicator specifying disabling of the hopping pattern, receiving an uplink control channel transmission from the UE using one of the first subset of frequencies or the second subset of frequencies.
In a sixty-eighth aspect alone or in combination with one or more of the first through sixty-seventh aspects, an apparatus for wireless communication comprises a transmitter configured to transmit a first indication of bandwidth associated with a base station to a User Equipment (UE) and further configured to transmit a second indication of a first uplink bandwidth portion (BWP) to the UE. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The apparatus further includes a receiver configured to: receiving uplink signal transmissions from the UE using both the first subset of frequencies and the second subset of frequencies based on the first uplink BWP exceeding a threshold value based at least in part on the bandwidth associated with the base station; or receiving uplink signal transmissions from the UE using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold.
In a sixty-ninth aspect, alone or in combination with one or more of the first through sixty-eighth aspects, a method of wireless communication performed by a base station includes transmitting one or more messages to a User Equipment (UE) including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled for the UE. The UE is associated with a first uplink bandwidth portion (BWP) that includes a first subset of frequencies and a second subset of frequencies. The method further comprises the steps of: receiving an uplink control channel transmission from the UE using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping mode; or based on the hopping indicator specifying disabling of the hopping pattern, receiving an uplink control channel transmission from the UE using one of the first subset of frequencies or the second subset of frequencies.
In a seventy aspect, alone or in combination with one or more of the first through sixty-ninth aspects, a method of wireless communication performed by a base station includes transmitting a first indication of bandwidth associated with the base station to a User Equipment (UE), and further comprising transmitting a second indication of a first uplink bandwidth portion (BWP) to the UE. The first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies. The method further comprises the steps of: receiving uplink signal transmissions from the UE using both the first subset of frequencies and the second subset of frequencies based on the first uplink BWP exceeding a threshold value based at least in part on the bandwidth associated with the base station; or receiving uplink signal transmissions from the UE using one of the first subset of frequencies or the second subset of frequencies based on the first uplink BWP failing to exceed the threshold.
Those skilled in the art will appreciate that: information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
The components, functional blocks, and modules described herein may include processors, electronic devices, hardware devices, electronic components, logic circuits, memory, software code, firmware code, and other examples, or any combination thereof. Software should be construed broadly to mean instructions, instruction sets, code segments, program code, programs, subroutines, software modules, applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and/or functions, etc., whether described in software, firmware, middleware, microcode, hardware description language, or other terminology. Furthermore, the features discussed herein may be implemented via dedicated processor circuitry, via executable instructions, or a combination thereof.
The various illustrative logics, logical blocks, modules, circuits, and processes described herein may be implemented as electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software may depend upon the particular application and design of the overall system.
Hardware and data processing apparatus for implementing the various illustrative logics, logical blocks, modules, and circuits described in connection with the aspects disclosed herein may be implemented or performed with a general purpose single or multi-chip 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, or any conventional processor, controller, microcontroller, or state machine. In some embodiments, a processor may be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. In some embodiments, particular processes and methods may be performed by circuitry specific to a given function.
In one or more aspects, the functions described may be implemented in hardware, digital electronic circuitry, computer software, firmware, including the structures disclosed in this specification and structural equivalents thereof, or in any combination thereof. Implementations of the subject matter described in this specification can also be implemented as one or more computer programs, i.e., one or more modules of computer program instructions encoded on a computer storage medium for execution by, or to control the operation of, data processing apparatus.
If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. The processes of the methods or algorithms disclosed herein may be implemented in processor-executable software modules that may reside on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that can be implemented to transfer a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection is properly termed a computer-readable medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media. Additionally, the operations of a method or algorithm may reside as one or any combination of code and instruction set on a machine readable medium and computer readable medium, which may be incorporated into a computer program product.
Various modifications to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to some other embodiments without departing from the spirit or scope of the disclosure. Thus, the claims are not intended to be limited to the implementations shown herein but are to be accorded the widest scope consistent with the disclosure, principles and novel features disclosed herein.
In addition, those skilled in the art will readily recognize that the terms "upper" and "lower" are sometimes used to ease the description of the drawings and indicate relative positions on properly oriented pages corresponding to the orientation of the drawings and may not reflect the proper orientation of any device as implemented.
Certain features that are described in this specification in the context of separate implementations may also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination. Furthermore, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination, or variation of a subcombination.
Similarly, although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. Further, the figures may schematically depict one or more example processes in the form of a flow diagram. However, other operations not depicted may be incorporated into the example process schematically illustrated. For example, one or more additional operations may be performed before, after, concurrently with, or between any of the illustrated operations. In some circumstances, multitasking and parallel processing may be advantageous. Moreover, the separation of various system components in the implementations described above should not be understood as requiring such separation in all implementations, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. In addition, some other embodiments are also within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results.
As used herein (including in the claims), the term "or" as used in the listing of two or more items means that any one of the listed items can be employed alone, or any combination of two or more of the listed items can be employed. For example, if the composition is described as comprising component A, B or C, the composition may contain a alone; b alone; c alone; a combination of A and B; a combination of a and C; a combination of B and C; A. b and C. Furthermore, as used herein, including in the claims, an "or" as used in a list of entries beginning with "at least one" means a separate list, e.g., a list of "at least one of A, B or C" refers to a or B or C or AB or AC or BC or ABC (i.e., a and B and C) or any combination of any of these. The term "substantially" is defined as largely but not necessarily entirely specified (and includes specified; e.g., substantially 90 degrees includes 90 degrees and substantially parallel includes parallel), as understood by one of ordinary skill in the art. In any of the disclosed embodiments, the term "substantially" may be replaced with "within" the specified content, wherein the percentages include 0.1%, 1%, 5%, or 10%.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the 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 (30)

1. An apparatus for wireless communication, the apparatus comprising:
a transmitter configured to communicate with a base station based on a first uplink bandwidth portion (BWP), the first uplink BWP comprising a first subset of frequencies and further comprising a second subset of frequencies; and
a receiver configured to receive one or more messages from the base station including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled, wherein the transmitter is further configured to:
transmitting an uplink control channel transmission to the base station using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping mode; or alternatively
An uplink control channel transmission is transmitted to the base station using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying disabling of the hopping pattern.
2. The device of claim 1, wherein the first uplink BWP corresponds to a default uplink BWP of the device.
3. The apparatus of claim 1, wherein the transmitter is further configured to send a message indicating a capability type of the apparatus, and wherein the frequency hopping indicator is based on the capability type.
4. The apparatus of claim 3, wherein the capability type corresponds to a reduced capability (RedCap) capability type associated with reduced uplink bandwidth as compared to at least one other capability type.
5. The apparatus of claim 1, wherein the transmitter is further configured to send a type-one message (msg 1) associated with a four-step Random Access Channel (RACH) procedure and indicating a capability type of the apparatus, wherein the one or more messages are received based on the capability type, and wherein the one or more messages comprise one of a type-four message (msg 4) associated with the four-step RACH procedure, a downlink control channel transmission scheduled for the msg4, or a combination of downlink control channel transmission and downlink data channel transmission.
6. The apparatus of claim 1, wherein the transmitter is further configured to transmit a type three message (msg 3) associated with a four-step Random Access Channel (RACH) procedure, wherein one of a demodulation reference signal (DMRS) configuration of the msg3, a payload of the msg3, or a scrambling identifier of the msg3 indicates a capability type of the apparatus, wherein the one or more messages are received based on the capability type, and wherein the one or more messages comprise one of a message four (msg 4) associated with the four-step RACH procedure, a downlink control channel transmission scheduled for the msg4, or a combination of downlink control channel transmission and downlink data channel transmission.
7. The apparatus of claim 1, wherein the transmitter is further configured to transmit a type a message (msgA) associated with a two-step Random Access Channel (RACH) procedure, wherein one of a preamble of the msgA, a demodulation reference signal (DMRS) configuration of the msgA, a payload of the msgA, or a scrambling identifier of the payload indicates a capability type of the apparatus, and wherein the one or more messages are received based on the capability type.
8. The apparatus of claim 7, wherein the one or more messages comprise one of a type B message (msgB) associated with the two-step RACH procedure, a downlink control channel message scheduling the msgB, or a combination of downlink control channel transmissions and downlink data channel transmissions.
9. The apparatus of claim 1, wherein the one or more messages comprise a System Information (SI) message associated with the base station.
10. The apparatus of claim 1, wherein the frequency hopping indicator comprises a bit, and wherein the transmitter is further configured to perform the uplink control channel transmission using the frequency hopping pattern based on a first value of the bit.
11. The apparatus of claim 10, wherein the transmitter is further configured to disable the frequency hopping pattern for the uplink control channel transmission based on a second value of the bit.
12. The apparatus of claim 1, wherein the frequency hopping indicator comprises a first set of one or more bits indicating a set of resources within the first uplink BWP, and wherein the transmitter is further configured to perform the uplink control channel transmission based on the set of resources within the first uplink BWP.
13. The apparatus of claim 1, wherein the frequency hopping indicator comprises a second set of one or more bits indicating a number of repetitions, and wherein the transmitter is further configured to perform one or more repetitions of the uplink control channel transmission based on the number of repetitions.
14. A method of wireless communication performed by a User Equipment (UE), the method comprising:
receiving one or more messages from a base station including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled for the UE, wherein the UE is associated with a first uplink bandwidth portion (BWP) that includes a first subset of frequencies and a second subset of frequencies;
the following operations are performed:
transmitting an uplink control channel transmission to the base station using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping mode; or alternatively
An uplink control channel transmission is transmitted to the base station using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying disabling of the hopping pattern.
15. The method of claim 14, wherein the one or more messages are transmitted using a broadcast transmission technique before or after an initial access procedure.
16. The method of claim 14, wherein the one or more messages are transmitted using unicast transmission techniques using one of a Radio Resource Control (RRC) connection or Medium Access Control (MAC) control element (MAC-CE) signaling.
17. The method of claim 14, wherein the frequency hopping indicator specifies that the frequency hopping mode is enabled, and wherein the uplink control channel transmission is performed based on the frequency hopping mode and a set of resources that are shared with or partially overlap with at least one other set of resources used by at least one other device.
18. The method of claim 14, wherein the frequency hopping indicator specifies that the frequency hopping mode is enabled, and wherein the uplink control channel transmission is performed based on the frequency hopping mode and a set of resources separate from one or more sets of resources associated with at least one other set of resources used by at least one other device.
19. The method of claim 14, wherein the frequency hopping indicator specifies that the frequency hopping mode is enabled and further indicates a set of resources, and wherein the uplink control channel transmission is performed based on the frequency hopping mode and the set of resources.
20. The method of claim 14, wherein the frequency hopping indicator specifies disabling the frequency hopping pattern, and wherein the uplink control channel transmission is performed without the frequency hopping pattern and based on at least a subset of a set of resources that are shared with or partially overlap with at least one other set of resources used by at least one other device.
21. The method of claim 14, wherein the frequency hopping indicator specifies disabling the frequency hopping pattern, and wherein the uplink control channel transmission is performed without the frequency hopping pattern and based on a set of resources separate from one or more sets of resources associated with at least one other set of resources used by at least one other device.
22. The method of claim 14, wherein the frequency hopping indicator specifies disabling the frequency hopping pattern and further indicates a set of resources, and wherein the uplink control channel transmission is performed without the frequency hopping pattern and based on the set of resources.
23. The method of claim 14, wherein the frequency hopping indicator specifies disabling the frequency hopping pattern and further indicates a number of repetitions, and further comprising performing one or more repetitions of the uplink control channel transmission without the frequency hopping pattern and based on the number of repetitions.
24. The method of claim 14, wherein the first subset of frequencies of the first uplink BWP is aligned with a first boundary of a second uplink BWP associated with at least one other device to reduce or avoid resource fragmentation of the second uplink BWP during operation based on the frequency hopping pattern.
25. An apparatus for wireless communication, the apparatus comprising:
a receiver configured to communicate with a User Equipment (UE) based on a first uplink bandwidth portion (BWP) associated with the UE, wherein the first uplink BWP comprises a first subset of frequencies and further comprises a second subset of frequencies; and
a transmitter configured to transmit one or more messages to the UE including a frequency hopping indicator that specifies whether to enable or disable a frequency hopping mode,
wherein the receiver is further configured to:
receiving an uplink control channel transmission from the UE using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping mode; or alternatively
An uplink control channel transmission is received from the UE using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying disabling of the hopping pattern.
26. The apparatus of claim 25, wherein the one or more messages comprise a System Information (SI) message.
27. The device of claim 25, wherein the first uplink BWP corresponds to a default uplink BWP of the UE.
28. A method of wireless communication performed by a base station, the method comprising:
transmitting one or more messages to a User Equipment (UE) including a frequency hopping indicator that specifies whether a frequency hopping mode is enabled or disabled for the UE, wherein the UE is associated with a first uplink bandwidth portion (BWP) that includes a first subset of frequencies and a second subset of frequencies;
the following operations are performed:
receiving an uplink control channel transmission from the UE using both the first subset of frequencies and the second subset of frequencies based on the hopping indicator designation enabling the hopping mode; or alternatively
An uplink control channel transmission is received from the UE using one of the first subset of frequencies or the second subset of frequencies based on the hopping indicator specifying disabling of the hopping pattern.
29. The method of claim 28, wherein the one or more messages comprise a System Information (SI) message.
30. The method of claim 28, wherein the first uplink BWP corresponds to a default uplink BWP of the UE.
CN202280053389.9A 2021-08-06 2022-05-26 Frequency hopping enablement for uplink control channel transmissions by a user equipment Pending CN117795859A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US63/260,038 2021-08-06
US17/651,366 2022-02-16
US17/651,366 US11470614B1 (en) 2021-08-06 2022-02-16 Frequency hopping enabling for an uplink control channel transmission by a user equipment
PCT/US2022/072586 WO2023015052A1 (en) 2021-08-06 2022-05-26 Frequency hopping enabling for an uplink control channel transmission by a user equipment

Publications (1)

Publication Number Publication Date
CN117795859A true CN117795859A (en) 2024-03-29

Family

ID=90383765

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280053389.9A Pending CN117795859A (en) 2021-08-06 2022-05-26 Frequency hopping enablement for uplink control channel transmissions by a user equipment

Country Status (1)

Country Link
CN (1) CN117795859A (en)

Similar Documents

Publication Publication Date Title
CN116941211A (en) Channel occupancy time structure information indication for new radio unlicensed side links
CN117981413A (en) Access link (UU) and side link Positioning Reference Signal (PRS) priorities in side link assisted positioning
US11825495B2 (en) Frequency hopping enabling for an uplink control channel transmission by a user equipment
CN118216213A (en) MSGB waveform indication
US20220322388A1 (en) Uplink (ul) transmit (tx) switch operations
CN115053571B (en) Techniques for reducing false paging reception
EP4316129A1 (en) Uplink (ul) transmit (tx) switch operations
CN116058012A (en) Group-based signaling for wireless communication systems
CN117795859A (en) Frequency hopping enablement for uplink control channel transmissions by a user equipment
US20230209613A1 (en) Uplink (ul) transmission in random access channel (rach) on flexible cell
US20240146383A1 (en) Enhanced group-based beam report for stxmp
US11848730B2 (en) Methods for feedback of metrics associated with reduced capability antenna modules in millimeter wave systems
US11888778B2 (en) Wireless communication using an indicator of a joint channel estimation operation for multiple demodulation reference signals
US11805511B2 (en) Cross-slot schedule for new radio (NR) sidelink (SL)
US20230096255A1 (en) Sidelink demodulation reference signal (dmrs) bundling trigger
WO2023015052A1 (en) Frequency hopping enabling for an uplink control channel transmission by a user equipment
US20210351830A1 (en) Compensating for transmit-receive spatial filter asymmetries in upper millimeter wave bands
US20230089416A1 (en) Discontinuous reception (drx) configuration for a user equipment (ue)
CN117099451A (en) Uplink (UL) Transmit (TX) handover operations
CN117099440A (en) Uplink control channel group and cross-carrier scheduling for user equipment cooperation
CN117981455A (en) Channel Occupancy Time (COT) sharing request in side links
CN117751650A (en) Flexible random access channel occasion (RO) association for multi-carrier operation
CN116114361A (en) Dynamic switching of Physical Uplink Control Channel (PUCCH) between Uplink (UL) and Supplemental Uplink (SUL)
CN117083976A (en) Sensing bandwidth determination by a User Equipment (UE) for Listen Before Talk (LBT) operation
CN116134961A (en) Techniques for antenna switching diversity and multi-SIM concurrent operation management

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination