Multicast bandwidth part (BWP) interaction with multi-BWP

Abstract

Embodiments include systems, methods, and devices for wireless resource allocation to support multicast services in networks such as Fifth Generation (5G) New Radio (NR) (5G NR). In some embodiments, the methods can be performed by a processor of a base station. In some embodiments, the methods can be performed by a processor of a wireless device. Various embodiments can include configuring two or more downlink (DL) frequency resources for multicast communications within a carrier bandwidth. Various embodiments can include selecting a DL frequency resource for multicast communications from the two or more DL frequency resources for multicast communications to monitor for multicast data transmissions from a base station based at least in part on an active DL bandwidth part (BWP) of a wireless device.

Description

[0001] Related applications

[0002] This application claims the benefit of priority to U.S. Provisional Application No. 63 / 062,453, filed August 7, 2020, entitled “Interaction Of Multicast BWP With Multiple BWP”, and U.S. Non-Provisional Application No. 17 / 393,427, filed August 4, 2021, entitled “Interaction Of Multicast Band Width Part (BWP) With Multiple BWP”, the entire contents of which are incorporated herein by reference for various purposes. Background Technology

[0003] Long Term Evolution (LTE), 5G New Radio (NR), and other newly developed communication technologies allow wireless devices to transmit information at data rates (e.g., gigabits per second) that were available just a few years ago.

[0004] Current communication networks are more secure, adaptable to multipath fading, allow for lower network traffic latency, and provide better communication efficiency (e.g., in bits per second per unit of bandwidth used). These and other recent improvements have facilitated the emergence of the Internet of Things (IoT), large-scale machine-to-machine (M2M) communication systems, autonomous vehicles, and other technologies that rely on continuous and secure communication. Summary of the Invention

[0005] Various aspects include systems, methods, and apparatuses for allocating radio resources to support multicast services such as multicast services in fifth-generation (5G) New Radio (NR) networks. In some aspects, the methods can be executed by a processor of a base station. In some aspects, the methods can be executed by a processor of a radio device.

[0006] Various aspects may include: receiving an indication of two or more downlink (DL) frequency resources for multicast communication from a base station; selecting, at least in part, DL frequency resources for multicast communication from the two or more DL frequency resources for multicast communication from the base station based on an active DL bandwidth portion (BWP) to monitor multicast data transmission from the base station; and monitoring multicast data transmission from the base station in the selected DL frequency resources for multicast communication.

[0007] In some aspects, the indication of the two or more DL frequency resources for multicast communication is used to indicate a one-to-one mapping between each of the two or more DL frequency resources for multicast communication and a corresponding DL BWP configured within the carrier bandwidth.

[0008] In some aspects, selecting DL frequency resources for multicast communication from two or more DL frequency resources for multicast communication from the base station, at least in part based on the active DL BWP, to monitor multicast data transmission from the base station may include: determining the active DL BWP; determining the digital scheme of the active DL BWP; and selecting from the two or more DL frequency resources for multicast communication that are fully contained within the active DL BWP and / or have the same digital scheme as the active DL BWP to monitor multicast data transmission from the base station.

[0009] In some aspects, receiving the indication for the two or more DL frequency resources for multicast communication from the base station may include: receiving the indication for the two or more DL frequency resources for multicast communication from the base station in a unicast radio resource control (RRC) message.

[0010] In some aspects, the two or more DL frequency resources for multicast communication from the base station may include: a first DL frequency resource for multicast communication from the base station, at least associated with a multicast control channel; and a second DL frequency resource for multicast communication from the base station, at least associated with a multicast service channel.

[0011] Various aspects may further include: determining a feedback configuration for the active DL BWP; and sending multicast feedback data to the base station according to the feedback configuration for the active DL BWP.

[0012] Various aspects may further include: receiving indications for two or more uplink (UL) frequency resources for multicast communication; and sending multicast feedback data to the base station using at least one of the two or more UL frequency resources for multicast communication.

[0013] In some aspects, one of the two or more UL frequency resources used for multicast is selected at least in part based on the active DL BWP being used when sending the multicast feedback data to the base station.

[0014] In some aspects, the two or more DL frequency resources used for multicast communication may include multiple sets of two or more DL frequency resources used for multicast communication, and each of the multiple sets is associated with a different service.

[0015] In some aspects, selecting the DL frequency resources for multicast communication from two or more DL frequency resources for multicast communication from the base station based at least in part on the active DL BWP to monitor multicast data transmission from the base station may include: selecting the DL frequency resources for multicast communication from two or more DL frequency resources for multicast communication from the base station based at least in part on the active DL BWP and the selection of one of the different services to monitor multicast data transmission from the base station.

[0016] In some aspects, each of the two or more DL frequency resources used for multicast communication has a different configuration, and the different configurations are different search space sets or different physical channel configurations.

[0017] Various aspects may include: configuring two or more downlink (DL) frequency resources within a carrier bandwidth for multicast communication; sending an indication to one or more wireless devices communicating with the base station of the two or more DL frequency resources used for multicast communication; and scheduling multicast data transmission in at least one of the two or more DL frequency resources used for multicast communication.

[0018] In some aspects, configuring the two or more DL frequency resources for multicast communication within the carrier bandwidth may include: determining two or more DL bandwidth portions (BWPs) configured within the carrier bandwidth; and configuring DL frequency resources for multicast communication for each of the two or more DL BWPs configured within the carrier bandwidth.

[0019] In some aspects, sending the indication for the two or more DL frequency resources for multicast communication to the one or more wireless devices communicating with the base station may include: sending the indication for the two or more DL frequency resources for multicast communication to the one or more wireless devices communicating with the base station in a Radio Resource Control (RRC) message.

[0020] Various aspects may further include: configuring uplink (UL) frequency resources for multicast communication for each of the two or more DL frequency resources for multicast communication; sending an indication of the UL frequency resources for multicast communication to the one or more wireless devices communicating with the base station; and receiving multicast feedback data from at least one of the one or more wireless devices in the UL frequency resources for multicast communication.

[0021] In some respects, the two or more DL frequency resources used for multicast communication are two or more control resource sets (CORESET) used for multicast communication.

[0022] In some aspects, each of the two or more DL frequency resources used for multicast communication has a different configuration, and the different physical channel configurations are different search space sets or different physical channel configurations.

[0023] In some aspects, configuring the two or more DL frequency resources for multicast communication within the carrier bandwidth may include: determining two or more DL bandwidth portions (BWPs) configured within the carrier bandwidth; and configuring DL frequency resources for multicast communication for each of the two or more DL BWPs configured within the carrier bandwidth such that there is a one-to-one mapping between each DL frequency resource for multicast communication and each of the two or more DL BWPs configured within the carrier bandwidth.

[0024] A further aspect may include a wireless device having a processor configured to perform any of the methods outlined above. A further aspect may include a non-transitory processor-readable storage medium having processor-executable instructions stored thereon, the processor-executable instructions being configured to cause the processor of the wireless device to perform any of the methods outlined above. A further aspect includes a wireless device having units with functionality for performing any of the methods outlined above. A further aspect includes a monolithic system for a wireless device, the monolithic system including a processor configured to perform any of the methods outlined above. A further aspect includes a system-in-package (SIP) including two monolithic systems for a wireless device, the monolithic systems including processors configured to perform any of the methods outlined above. A further aspect may include a network computing device having a processor configured to perform any of the methods outlined above. A further aspect may include a non-transitory processor-readable storage medium having processor-executable instructions stored thereon, the processor-executable instructions being configured to cause the processor of the network computing device to perform any of the methods outlined above. A further aspect includes a network computing device having a unit for performing any of the methods outlined above. Attached Figure Description

[0025] The accompanying drawings, which are incorporated herein and form part of this specification, illustrate exemplary embodiments of the claims and, together with the general description given above and the detailed description given below, serve to interpret the features of the claims.

[0026] Figure 1 This is a system block diagram illustrating an example communication system suitable for implementing any of the various embodiments.

[0027] Figure 2 This is a component block diagram illustrating an example computing and wireless modem system suitable for implementing any of the various embodiments.

[0028] Figure 3A This is a diagram illustrating an example of a software architecture including a wireless protocol stack for user and control planes in wireless communication, according to various embodiments.

[0029] Figure 3B This is a diagram showing the allocation of the bandwidth portion (BWP) in the carrier bandwidth.

[0030] Figure 3C This is a diagram illustrating the allocation of virtual frequency resources for multicast communication in the carrier bandwidth according to various embodiments.

[0031] Figure 3D This is a diagram illustrating the allocation of virtual frequency resources for multicast communication in the carrier bandwidth according to various embodiments.

[0032] Figure 4A This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0033] Figure 4B This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0034] Figure 5A This is a block diagram illustrating the association between the downlink (DL) bandwidth portion (BWP) and DL frequency resources used for multicast communication according to various embodiments.

[0035] Figure 5B This is a block diagram illustrating the association between a DL BWP and DL frequency resources for multicast communication according to various embodiments.

[0036] Figure 6A This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0037] Figure 6B This is a diagram illustrating the allocation of virtual frequency resources for multicast communication in the carrier bandwidth according to various embodiments.

[0038] Figure 6C This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0039] Figure 7A This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0040] Figure 7B This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0041] Figure 8A This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0042] Figure 8B This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0043] Figure 8C This is a flowchart illustrating a method for allocating wireless resources to support multicast services according to various embodiments.

[0044] Figure 9 This is a component block diagram of a network computing device suitable for use in various embodiments.

[0045] Figure 10 This is a component block diagram of a wireless device suitable for use in various embodiments. Detailed Implementation

[0046] Various embodiments will be described in detail with reference to the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to refer to the same or similar parts. References to specific examples and implementations are for illustrative purposes and are not intended to limit the scope of the claims.

[0047] Various embodiments provide base stations and wireless devices for implementing methods of wireless resource allocation to support multicast services from networks such as fifth-generation (5G) New Radio (NR) networks. Various embodiments may include configuring two or more downlink (DL) frequency resources within a carrier bandwidth for multicast communication. Various embodiments may include selecting, at least in part, DL frequency resources for monitoring multicast data transmission from two or more DL frequency resources used for multicast communication, based on an active DL bandwidth portion (BWP) of the wireless device. By implementing the configuration of multiple DL frequency resources for multicast communication and selection therefrom, various embodiments can achieve improved multicast data delivery to wireless devices in networks such as 5G NR networks.

[0048] The term "wireless device" as used herein refers to any or all of the following: cellular phone, smartphone, portable computing device, personal or mobile multimedia player, laptop computer, tablet computer, smartbook, ultrabook, handheld computer, wireless email receiver, multimedia-enabled internet cellular phone, wireless router device, wireless home appliance, medical device and equipment, entertainment device (e.g., wireless game controller, music and video player, satellite radio, etc.), wireless communication element in autonomous and semi-autonomous vehicles, wireless devices attached to or incorporated into various mobile platforms, and similar electronic devices including memory, multiple SIMs, wireless communication components, and programmable processors.

[0049] The term "system-on-a-chip" (SOC) is used herein to refer to a single integrated circuit (IC) chip containing multiple resources and / or processors integrated on a single substrate. A single SOC may contain circuitry for digital, analog, mixed-signal, and radio frequency functions. A single SOC may also include any number of general-purpose and / or special-purpose processors (digital signal processors, modem processors, video processors, etc.), memory blocks (e.g., ROM, RAM, flash memory, etc.), and resources (e.g., timers, voltage regulators, crystal oscillators, etc.). A SOC may also include software for controlling the integrated resources and processors, as well as software for controlling peripheral devices.

[0050] The term "system-in-package" (SIP) may be used herein to refer to a single module or package containing multiple resources, computing units, cores, and / or processors located on two or more IC chips, substrates, or SoCs. For example, a SIP may include a single substrate on which multiple IC chips or semiconductor wafers are stacked in a vertical configuration. Similarly, a SIP may include one or more multi-chip modules (MCMs) on which multiple ICs or semiconductor wafers are packaged within a single substrate. A SIP may also include multiple independent SoCs, such as those located on a single motherboard or in a single wireless device, coupled together and packaged closely together via high-speed communication circuitry. The proximity of the SoCs facilitates high-speed communication and the sharing of memory and resources.

[0051] As used herein, the terms “SIM,” “SIM card,” and “Subscriber Identity Module” can be used interchangeably to refer to an integrated circuit or a memory embedded in a removable card that stores the International Mobile Subscriber Identity (IMSI), associated keys, and / or other information used to identify and / or authenticate wireless devices on a network and to enable communication services with the network. Examples of SIMs include the Universal Subscriber Identity Module (USIM) provided in the Long Term Evolution (LTE) 3GPP standard and the Removable Subscriber Identity Module (R-UIM) provided in the 3GPP standard. Universal Integrated Circuit Card (UICC) is another name for SIM. Additionally, SIM can also refer to a Virtual SIM (VSIM), which can be implemented as a remote SIM profile loaded into an application on a wireless device and implements normal SIM functionality on the wireless device.

[0052] Because the information stored in a SIM enables a wireless device to establish a communication link with one or more specific communication services of a specific network, the term "SIM" is also used herein as an abbreviation for the communication service associated with and implemented through the information stored in a specific SIM, since the SIM is associated with the communication network and the services and subscriptions supported by that network. Similarly, the term SIM can also be used as an abbreviation for the protocol stack and / or modem stack and communication processes used in establishing and directing communication services with subscriptions and networks implemented through the information stored in a specific SIM.

[0053] As used herein, the terms “multi-SIM wireless device,” “MS wireless device,” “dual-SIM wireless device,” and “DS wireless device” are used interchangeably to describe a wireless device configured to have more than one SIM. Examples of multi-SIM wireless devices include multi-SIM multiple backup (MSMS) wireless devices (such as dual-SIM (DS) dual backup (DSDS) wireless devices) and multi-SIM multiple active (MSMA) wireless devices (such as dual-SIM dual active (DSDA) wireless devices). An MSMS wireless device can be a wireless device configured to have more than one SIM and allow simultaneous idle mode operation on two subscriptions and selective communication on one subscription while performing idle mode operation on at least one other subscription. An MSMA wireless device can be a wireless device configured to have more than one SIM and allow simultaneous idle mode and / or active mode operation on two subscriptions using at least two different radio frequency (RF) resources (e.g., two different wireless transceivers).

[0054] The term "server" is used herein to describe various embodiments to refer to any computing device capable of acting as a server, such as a primary exchange server, web server, mail server, document server, content server, or any other type of server. A server can be a dedicated computing device or a computing device that includes a server module (e.g., running an application that enables the computing device to operate as a server). A server module (e.g., a server application) can be a full-featured server module or a lightweight or auxiliary server module (e.g., a lightweight or auxiliary server application) configured to provide synchronization services between dynamic databases on the receiving device. A lightweight server or auxiliary server can be a scaled-down version of server-type functionality that can be implemented on the receiving device, thus enabling it to act as an internet server (e.g., an enterprise email server) only to the extent necessary to provide the functionality described herein.

[0055] As used herein, the terms “network,” “system,” “wireless network,” “cellular network,” and “wireless communication network” can be used interchangeably to refer to a portion or all of a wireless network of carriers associated with wireless devices and / or subscriptions on those devices. The techniques described herein can be used in a variety of wireless communication networks, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), FDMA, Orthogonal FDMA (OFDMA), Single Carrier FDMA (SC-FDMA), and others. In general, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support at least one wireless access technology that can operate on one or more frequencies or frequency ranges. For example, a CDMA network can implement Universal Terrestrial Radio Access (UTRA) (including the Wideband Code Division Multiple Access (WCDMA) standard), CDMA2000 (including the IS-2000, IS-95, and / or IS-856 standards), etc. In another example, a TDMA network can implement GSM Enhanced Data Rate (EDGE) for GSM evolution. In another example, OFDMA networks can implement evolved UTRA (E-UTRA) (including the LTE standard), IEEE 802.11 (WiFi), IEEE 802.16 (WiMAX), IEEE 802.20, Etc. Reference may be made to wireless networks using the LTE standard, and therefore the terms "Evolved Universal Terrestrial Radio Access," "E-UTRAN," and "eNodeB" may be used interchangeably herein to refer to wireless networks. However, such references are provided by way of example only and are not intended to exclude wireless networks using other communication standards. For example, although various third-generation (3G), fourth-generation (4G), and fifth-generation (5G) systems are discussed herein, these systems are referenced by way of example only and may be replaced by future generations of systems (e.g., sixth-generation (6G) or higher) in various examples.

[0056] The terms “network operator,” “operator,” “mobile network operator,” “carrier,” and “service provider” are used interchangeably herein to describe a provider of wireless communication services that owns or controls the elements for selling and delivering communication services to end users and provides the necessary configuration and credentials as a strategy implemented in a user equipment subscription.

[0057] As used herein, the term "RF resource" refers to components in a communication device that transmit, receive, and decode radio frequency signals. RF resources typically include a series of coupled components known as the "transmit chain" that transmit RF signals and a series of coupled components known as the "receive chain" that receive and process RF signals.

[0058] As used herein, the term "frequency resources for multicast communication" broadly refers to a set of definitions of physical resource blocks associated with multicast service delivery to a wireless device and / or reports of multicast service reception by a wireless device. Frequency resources for multicast communication may include downlink (DL) frequency resources for multicast communication and / or uplink (UL) frequency resources for multicast communication. As used herein, the term "DL frequency resources for multicast communication" broadly refers to a set of definitions of one or more physical resource blocks in which a wireless device can monitor a physical downlink control channel (PDDCH) for multicast information and / or in which a wireless device can receive multicast information. Examples of DL frequency resources for multicast communication include bandwidth portions (BWPs) such as multicast BWPs, control resource sets (CORESETs), etc. Various examples are described herein with reference to BWPs; however, reference to BWPs is used only as an example and in various embodiments BWPs may be replaced by other types of frequency resources such as CORESETs.

[0059] LTE is a mobile network standard for 4G wireless communication developed by 3GPP (3rd Generation Partnership Project) and specified in its Release 8 document series for high-speed data transmission. 5G systems are a more advanced technology than 4G LTE and provide new radio access technologies (RATs) through the evolution of existing mobile communication network architectures. Currently, implementations of 5G systems or networks supporting new radio (NR) (also known as 5G) are being sampled via NR base stations such as next-generation node Bs (gNode B or gNB). 5G systems and NR base stations will provide flexibility in bandwidth scheduling and usage. Future generations of systems (such as sixth generation (6G) or higher) may provide the same or similar flexibility in bandwidth scheduling and usage.

[0060] In LTE and / or 5G (or later generations) systems, network devices such as base stations can broadcast packets to radio devices in a cell. For ease of reference, the term "network device" or "network computing device" is used to refer to any of a variety of network elements capable of performing operations in various embodiments, and non-limiting examples of such network elements include base stations, e-nodes B, g-nodes B, etc. Network devices can provide services to radio devices in a cell using multicast radio bearers (MRBs) and / or data radio bearers (DRBs).

[0061] In 5G NR, various parameters are associated with the Bandwidth Part (BWP) configuration. These parameters can include Subcarrier Spacing (SCS), Cyclic Prefix (CP) length, Resource Block (RB) index, Resource Allocation (RA) type, and Resource Block Group (RBG) size. In 5G NR, the Downlink Control Information (DCI) field size can be dependent on the active BWP configuration. Therefore, when a radio device (e.g., a User Equipment (UE)) is configured to have multiple BWPs, the DCI field size follows the radio device's current active BWP. For DCI-based BWP handover, each DCI field is interpreted based on the most recently active BWP. For a DCI field, if the number of bits required for the most recently active BWP (e.g., k1 bits) is less than the number of bits required for the previous active BWP (e.g., k2 bits), then the (k2-k1) most significant bits (MSB) of the DCI field are set to zero. If the number of bits required for a recent active BWP (e.g., k1 bits) is greater than the number of bits required for a previous active BWP (e.g., k2 bits), the wireless device assumes that the (k1-k2) MSB bits of the DCI field are set to zero.

[0062] In 5G NR, multicast transmissions should be able to be received by multiple wireless devices. To enable multicast transmissions to be received by multiple wireless devices, the SCS, CP length, RB index, RA type, and RGB size used for multicast transmissions cannot be wireless device-specific and must be directly related to the specific BWP of each wireless device.

[0063] One solution for enabling multicast transmissions in fifth-generation (5G) new radio (NR) networks to be received by multiple wireless devices is to allocate multicast frequency resources for multicast communication, such as multicast BWPs for multicast reception of multicast services and / or virtual BWPs for unicast reception of multicast services.

[0064] In some embodiments, the multicast BWP may be a wireless device common BWP configured for use by all wireless devices communicating with the base station. In some embodiments, parameters related to resource allocation may be provided in the wireless device common BWP configuration. A wireless device receiving the wireless device common BWP may activate the wireless device common BWP to receive multicast services broadcast by the base station. In some embodiments, the indication of the wireless device common BWP may indicate parameters related to resource allocation such that the receiving wireless device regards the lowest resource block (RB) index of the wireless device common BWP as the initial physical resource block (PRB) of the wireless device common BWP (e.g., PRB#0).

[0065] In some embodiments, the common BWP of a radio device may have the same SCS and CP length as the active radio device-specific BWP, and the common BWP may be completely contained within the radio device-specific BWP. In such a case, the radio device may monitor the physical downlink control channel (PDCCH) search space sets for unicast (C-RNTI) and multicast (G-RNTI) of the same serving cell, and the network (e.g., a base station) may schedule unicast or multicast (or both) simultaneously. In some embodiments, the search space (SS) sets for unicast and multicast may be configured separately and independently in the radio device-specific BWP and the common BWP of the radio device. In some embodiments, the radio device may be configured to monitor both the PDCCH for unicast and the PDCCH for multicast in both the radio device-specific BWP and the common BWP of the radio device for the same serving cell.

[0066] In some embodiments, a multicast BWP can be a virtual BWP. In some embodiments, a virtual BWP may not be a defined actual BWP, but rather a subset of the parameters of a BWP. A virtual BWP can be configured by a base station to be fully contained within a radio device-specific BWP having the same SCS and CP length. In some embodiments, a network (e.g., a base station) can configure a virtual BWP such that radio devices receiving the same multicast service can have an active BWP that fully contains the virtual BWP. In some embodiments, a virtual BWP can be identified to a radio device via configuration elements such as the start RB and RB length elements. In some embodiments, the bandwidth of a virtual BWP can be identified to a radio device via a control resource set (CORESET) bandwidth configuration. As an example, a radio device can be configured to have a specific CORESET for multicast. The virtual BWP bandwidth can be determined by the lowest and highest RB indices of the CORESET for multicast. In some embodiments, assuming the radio device is configured to have multiple specific CORESETs for multicast, the virtual BWP bandwidth can be determined as the union of the multiple CORESETs (e.g., from the lowest RB index in the CORESET to the highest RB index in the CORESET).

[0067] In a 5G NR network, a wireless device can be configured to have multiple DL BWPs, such as four DL BWPs. At any given time, only one of the DL BWPs can be active for the wireless device. The wireless device can be configured to support multiple DL BWPs in a 5G NR network, and various embodiments allow the wireless device to be configured to have multiple (such as two or more, three, four, etc.) downlink (DL) frequency resources for multicast communication. For example, various embodiments allow the wireless device to be configured to have multiple multicast BWPs. In some embodiments, it is determined which DL frequency resource to monitor can be based on the active DL BWP of the wireless device. For example, it is determined which of the multiple multicast BWPs configured for the wireless device can be based on the active DL BWP of the wireless device.

[0068] In some embodiments, a base station may configure DL frequency resources for multicast communication for each DL BWP configured within a carrier bandwidth (e.g., for each DL BWP scheduled for the carrier bandwidth). This allows the base station to configure DL frequency resources for multicast communication such that a one-to-one association exists between DL BWPs and DL frequency resources for multicast communication. In some embodiments, more than one DL BWP may be associated with DL frequency resources for multicast communication. Thus, the relationship between DL BWPs and DL frequency resources for multicast communication can be many-to-one (e.g., N:1). For example, when DL BWPs may partially overlap, the partially overlapping DL BWPs may point to the same DL frequency resource for multicast communication. In some embodiments, the association (or link) between a DL BWP and a DL frequency resource for multicast communication may be indicated by an identifier and / or pointer, such as a BWP identifier. In some embodiments, the link (or association) between a DL BWP and a DL frequency resource for multicast communication may be transmitted to a radio device via a Radio Resource Control (RRC) message. In some embodiments, the base station may update the link (or association) between a DL BWP and a DL frequency resource for multicast communication. The wireless device can be instructed to update the link (or association) between the DL BWP and the DL frequency resources used for multicast communication via downlink control information (DCI) and / or media access control (MAC) control unit (CE) messages.

[0069] In some embodiments, the base station may explicitly signal to one or more wireless devices the configuration of the DL BWP to DL frequency resources used for multicast communication. In some embodiments, the base station may not explicitly signal to one or more wireless devices the configuration of the DL BWP to DL frequency resources used for multicast communication. In some embodiments, the configuration of the DL BWP to DL frequency resources used for multicast communication may be implicit in the configuration of the DL frequency resources, such that the wireless devices apply determination rules independent of direct signaling from the base station to select the DL frequency resources used for multicast communication to monitor. In some embodiments, the base station may configure DL frequency resources used for multicast communication without associating those DL frequency resources used for multicast communication with the DL BWP.

[0070] In various embodiments, a wireless device may be configured to select a DL frequency resource for multicast communication from a plurality of frequency resources for multicast communication from a base station, at least in part based on the wireless device's active DL BWP, to monitor multicast data transmission from the base station. In some embodiments, the wireless device may be configured to select a DL frequency resource for multicast communication that is entirely contained within the wireless device's active BWP and / or has the same digital scheme as the active BWP. In some embodiments, more than one DL frequency resource for multicast communication may be entirely contained within the wireless device's active BWP and may have the same digital scheme as the active BWP. In some embodiments, the wireless device may be configured to select one DL frequency resource for multicast communication based on a tie-winning condition. In some embodiments, the tie-winning condition may be configured based on the DL frequency resource for multicast communication, such as a lowest DL frequency resource identifier for multicast communication (e.g., lowest multicast BWP ID), an explicit priority parameter, etc. In some embodiments, the tie-winning condition may be a wireless device setting for a preferred DL frequency resource for multicast communication.

[0071] In various embodiments, a base station may send an indication of the configuration of DL frequency resources for multicast communication via a unicast RRC message. In a unicast RRC message, different DL BWPs may point to the same DL frequency resource for multicast communication. In some embodiments, the base station may send an indication of the configuration of DL frequency resources for multicast communication in a broadcast RRC message, such as via a multicast control channel (MCCH), system information block (SIB) message, etc. All wireless devices may receive the same set of DL frequency resources for multicast communication, but different wireless devices may use different subsets of the DL frequency resources for multicast communication. For example, various wireless devices among those receiving a multicast RRC message may implicitly activate a specific DL frequency resource among the DL frequency resources for multicast communication based on that wireless device's active DL BWP at a given time. As another example, a specific DL frequency resource among the DL frequency resources for multicast communication may be activated by transmitting additional signaling from a unicast RRC message from the base station. In some embodiments, the configuration of the DL frequency resources for multicast communication may be different for different channels. For example, the MCCH and the Multicast Traffic Channel (MTCH) can be associated with different DL frequency resources used for multicast communication. As a concrete example, the MCCH can use an initial multicast BWP, while the MTCH can use a different BWP.

[0072] In various embodiments, the wireless device may provide multicast feedback data to the base station. In some embodiments, the wireless device may be configured to report feedback to the base station on multicast reception. For example, the wireless device may be configured to send an acknowledgment (ACK) message and / or a negative acknowledgment (NAK) message to the base station based on whether the multicast data was successfully received by the wireless device.

[0073] In some embodiments, multicast feedback data can be sent to the base station via unicast. In some embodiments, each wireless device can have its own dedicated resources for reporting Hybrid Automatic Repeat Request (ARQ) (HARQ) ACK messages to the base station. The wireless device can determine the feedback configuration for the active DL BWP and send multicast feedback data to the base station according to the feedback configuration for the active DL BWP.

[0074] In some embodiments, multicast feedback data can be sent to the base station in a NAK group-based manner. In some embodiments, multiple wireless devices can send the same sequence when multicast data is not successfully received, and different active BWPs can be associated with different resources used for feedback reporting. In some embodiments, one or more uplink (UL) frequency resources for multicast communication can be configured by the base station and are associated with DL BWPs configured by the base station. In some embodiments, each UL frequency resource can be associated with one of the DL frequency resources used for multicast communication. In some embodiments, the selection of UL frequency resources for multicast communication to be used for feedback reporting can be based on active DL BWPs. In some embodiments, a DL frequency resource configuration indication for multicast communication from the base station can indicate the resource configuration to be used for multicast feedback.

[0075] In various embodiments, the configuration of DL frequency resources for multicast communication by the base station can be per-service. For example, DL frequency resources for multicast communication can be configured based on a per-group-Radio Network Temporary Identifier (G-RNTI). In some embodiments, different DL frequency resources for multicast communication can be associated with different services. In some embodiments, different G-RNTIs can have different DL frequency resource configurations for multicast communication, such as different multicast BWP configurations. Different configurations can include, for example, different feedback resources, different mappings between DL BWPs and DL frequency resources for multicast communication, etc. In some embodiments, a radio device in an active DL BWP with associated DL frequency resources for multicast communication cannot monitor the G-RNTI corresponding to the active DL BWP. In some embodiments, a given service can have multiple DL frequency resources for multicast communication. In some embodiments, different DL frequency resources for multicast communication can be configured individually for each service. In some embodiments, the determination of DL frequency resources for multicast communication to be used for a service can be performed individually by the radio device for each service. In some embodiments, different services can have different sets of frequency resources, and the determination of frequency resources to be monitored can include determining frequency resources for each service.

[0076] In some embodiments, different DL frequency resources used for multicast communication can have different configurations. For example, different configurations could be different search space sets and / or different physical channel configurations, such as different physical downlink shared channel (PDSCH) configurations.

[0077] In some embodiments, the configuration of DL frequency resources for multicast communication can be based on CORESET. For example, each DL frequency resource for multicast communication can have its own CORESET, and the DL frequency resources for multicast communication can be different for each active BWP based on the corresponding CORESET.

[0078] In some embodiments, the DL frequency resource for multicast communication may be a CORESET for multicast communication. In some embodiments, the DL frequency resource for multicast communication may be a BWP for multicast communication.

[0079] Figure 1 This is a system block diagram illustrating an example communication system 100 suitable for implementing any of the various embodiments. Communication system 100 can be a 5G New Radio (NR) network or any other suitable network such as an LTE network, 5G network, etc. Although Figure 1 A 5G network is shown, but later generations of networks may include the same or similar elements. Therefore, references to 5G networks and 5G network elements in the following description are for illustrative purposes and are not intended to be restrictive.

[0080] Communication system 100 may include a heterogeneous network architecture, which includes a core network 140 and various mobile devices (in... Figure 1 The network is shown as wireless devices 120a-120e. The communication system 100 may also include multiple base stations (shown as BS110a, BS110b, BS110c, and BS110d) and other network entities. A base station is an entity that communicates with the wireless devices and may also be referred to as a Node B, an LTE evolved Node B (eNode B or eNB), an Access Point (AP), a Radio Headend, a Transmitter Receiver Point (TRP), a New Radio Base Station (NR BS), a 5G Node B (NB), a Next Generation Node B (gNode B or gNB), etc. Each base station can provide communication coverage for a specific geographic area. In 3GPP, depending on the context in which the term is used, the term "cell" can refer to the coverage area of ​​a base station, the base station subsystem providing services to that coverage area, or a combination thereof. The core network 140 can be any type of core network, such as an LTE core network (e.g., an evolved packet core (EPC) network), a 5G core network, etc.

[0081] Base stations 110a-110d can provide communication coverage for macrocells, picocells, femtocells, another type of cell, or a combination thereof. Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by mobile devices with service subscriptions. Picocells can cover a relatively small geographic area and allow unrestricted access by mobile devices with service subscriptions. Femtocells can cover a relatively small geographic area (e.g., a home) and allow restricted access by mobile devices associated with the femtocell (e.g., mobile devices in a Closed Subscriber Group (CSG)). A base station used for a macrocell can be referred to as a macro BS. A base station used for a picocell can be referred to as a pico BS. A base station used for a femtocell can be referred to as a femtocell BS or a home BS. Figure 1 In the example shown, base station 110a can be a macro BS for macro cell 102a, base station 110b can be a pico BS for pico cell 102b, and base station 110c can be a femto BS for femto cell 102c. A single base station 110a-110d can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5GNB,” and “cell” may be used interchangeably herein.

[0082] In some examples, the cell may not be fixed, and the geographical area of ​​the cell may move depending on the location of the mobile base station. In some examples, base stations 110a-110d may be connected to each other and to one or more other base stations or network nodes (not shown) in the communication system 100 via various types of backhaul interfaces (such as direct physical connections, virtual networks, or combinations thereof) using any suitable transport network.

[0083] Base stations 110a-110d can communicate with the core network 140 via wired or wireless communication link 126. Wireless devices 120a-120e can communicate with base stations 110a-110d via wireless communication link 122.

[0084] The wired communication link 126 can use a variety of wired networks (e.g., Ethernet, TV cable, telephone, fiber optic and other forms of physical network connection), and the wired network can use one or more wired communication protocols, such as Ethernet, point-to-point protocol, high-level data link control (HDLC), advanced data communication control protocol (ADCCP) and transmission control protocol / Internet protocol (TCP / IP).

[0085] The communication system 100 may also include a relay station (e.g., relay BS 110d). A relay station is an entity that can receive data from an upstream station (e.g., a base station or mobile device) and transmit data to a downstream station (e.g., a wireless device or base station). A relay station may also be a mobile device capable of relaying the transmissions of other wireless devices. Figure 1 In the example shown, relay station 110d can communicate with macro base station 110a and wireless device 120d to facilitate communication between base station 110a and wireless device 120d. A relay station can also be referred to as a relay base station, relay base station, repeater, etc.

[0086] Communication system 100 can be a heterogeneous network comprising different types of base stations (e.g., macro base stations, pico base stations, femto base stations, relay base stations, etc.). These different types of base stations can have different transmit power levels, different coverage areas, and different effects on interference in communication system 100. For example, macro base stations can have high transmit power levels (e.g., 5 to 40 watts), while pico base stations, femto base stations, and relay base stations can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0087] Network controller 130 can be coupled to a collection of base stations and can provide coordination and control for these base stations. Network controller 130 can communicate with the base stations via backhaul. Base stations can also communicate with each other, for example, directly or indirectly, via wireless or wired backhaul.

[0088] Wireless devices 120a, 120b, and 120c can be distributed throughout the communication system 100, and each wireless device can be fixed or mobile. Wireless devices can also be referred to as access terminals, terminals, mobile stations, user units, stations, user equipment (UE), etc.

[0089] Macro base station 110a can communicate with communication network 140 via wired or wireless communication link 126. Wireless devices 120a, 120b, and 120c can communicate with base stations 110a-110d via wireless communication link 122.

[0090] Wireless communication links 122 and 124 may include multiple carrier signals, frequencies, or frequency bands, each of which may include multiple logical channels. Wireless communication links 122 and 124 may use one or more Radio Access Technologies (RATs). Examples of RATs that can be used in wireless communication links include 3GPP LTE, 3G, 4G, 5G (e.g., NR), GSM, CDMA, WCDMA, WiMAX, Time Division Multiple Access (TDMA), and other mobile phone communication technology cellular RATs. Further examples of RATs that can be used in one or more of the various wireless communication links 122 and 124 within the communication system 100 include medium-range protocols such as Wi-Fi, LTE-U, LTE-Direct, LAA, and MuLTEfire, and relatively short-range RATs such as ZigBee, Bluetooth, and Bluetooth Low Energy (LE).

[0091] Certain wireless networks (e.g., LTE) utilize Orthogonal Frequency Division Multiplexing (OFDM) on the downlink and Single-Carrier Frequency Division Multiplexing (SC-FDM) on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple (K) orthogonal subcarriers, often referred to as tones, frequency bands, etc. Data can be modulated onto each subcarrier. In summary, modulation symbols are transmitted using OFDM in the frequency domain and SC-FDM in the time domain. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the subcarrier spacing could be 15 kHz, and the minimum resource allocation (called a "resource block") could be 12 subcarriers (or 180 kHz). Therefore, for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, the nominal Fast File Transfer (FFT) size could be equal to 128, 256, 512, 1024, or 2048, respectively. The system bandwidth can be divided into subbands. For example, a subband can cover 1.08MHz (i.e., 6 resource blocks), and there can be 1, 2, 4, 8 or 16 subbands for system bandwidths of 1.25, 2.5, 5, 10 or 20MHz respectively.

[0092] While the description of some embodiments may use terminology and examples associated with LTE technology, some embodiments may be applicable to other wireless communication systems, such as New Radio (NR) or 5G networks. NR can utilize OFDM with a cyclic prefix (CP) on both the uplink (UL) and downlink (DL) and includes support for half-duplex operation using Time Division Duplex (TDD). A single component carrier bandwidth of 100 MHz can be supported. An NR resource block can span 12 subcarriers with a 75 kHz subcarrier bandwidth over a duration of 0.1 milliseconds (ms). Each radio frame can consist of 50 subframes of 10 ms each. Therefore, each subframe can have a length of 0.2 ms. Each subframe can indicate the link direction of data transmission (i.e., DL or UL), and the link direction of each subframe can be dynamically switched. Each subframe can include DL / UL data and DL / UL control data. Beamforming can be supported, and the beam direction can be dynamically configured. Multiple-input multiple-output (MIMO) transmission using precoding can also be supported. MIMO configurations in DL can support up to eight transmit antennas, up to eight streams, and up to two streams per radio device in multi-layer DL transmission. Multi-layer transmission with up to two streams per radio device can be supported. Aggregation of multiple cells can be supported using up to eight serving cells. Alternatively, NR can support different air interfaces besides the OFDM-based air interface.

[0093] Some mobile devices can be viewed as machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) mobile devices. MTC and eMTC mobile devices include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., capable of communicating with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes can provide connectivity, for example, to or from a network (e.g., a wide area network such as the Internet or cellular networks), via wired or wireless communication links. Some mobile devices can be viewed as Internet of Things (IoT) devices, or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Wireless devices 120a-e can be included within a housing that houses the components of the wireless device (e.g., processor components, memory components, similar components, or combinations thereof).

[0094] In summary, any number of communication systems and wireless networks can be deployed within a given geographical area. Each communication system and wireless network can support a specific Radio Access Technology (RAT) and can operate on one or more frequencies. A RAT can also be referred to as a wireless technology, air interface, etc. A frequency can also be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT within a given geographical area to avoid interference between communication systems using different RATs. In some cases, 4G / LTE and / or 5G / NR RAT networks can be deployed. For example, a 5G Non-Standalone (NSA) network can use both a 4G / LTE RAT on the 4G / LTE RAN side of a 5G NSA network and a 5G / NR RAT on the 5G / NR RAN side of a 5G NSA network. The 4G / LTE RAN and 5G / NR RAN can both be connected to each other and the 4G / LTE core network (e.g., an evolved packet core (EPC) network) in the 5G NSA network. Other example network configurations can include 5G Standalone (SA) networks in which the 5G / NR RAN is connected to the 5G core network.

[0095] In some embodiments, two or more wireless devices 120a-e (e.g., shown as wireless device 120a and wireless device 120e) may communicate directly using one or more sidelink channels (e.g., without using base stations 110a-110d as intermediaries for communicating with each other). For example, wireless devices 120a-e may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or similar protocols), mesh networks, or similar networks, or combinations thereof. In this case, wireless devices 120a-e may perform scheduling operations, resource selection operations, and other operations described elsewhere herein as being performed by base station 110a.

[0096] Figure 2 This is a component block diagram illustrating an example computing and wireless modem system 200 suitable for implementing any of the various embodiments. Various embodiments can be implemented on some single-processor and multi-processor computer systems, including system-on-a-chip (SoC) or system-in-package (SIP).

[0097] refer to Figure 1 and 2The illustrated example wireless device 200 (which may be a SIP in some embodiments) includes two SOCs 202 and 204, coupled to a clock 206, a voltage regulator 208, at least one SIM 268 and / or a SIM interface, and a wireless transceiver 266 configured to transmit and receive wireless communications to / from a network device such as a base station 110a via an antenna (not shown). In some embodiments, the first SOC 202 operates as the central processing unit (CPU) of a wireless device that implements instructions for a software application by executing arithmetic, logic, control, and input / output (I / O) operations specified by instructions. In some embodiments, the second SOC 204 may operate as a dedicated processing unit. For example, the second SOC 204 may operate as a dedicated 5G processing unit responsible for managing high data volume, high speed (e.g., 5Gbps) and / or very high frequency short wavelength (e.g., 28GHz mm-wave spectrum) communications.

[0098] The first SOC 202 may include a digital signal processor (DSP) 210, a modem processor 212, a graphics processor 214, an application processor (AP) 216, one or more coprocessors 218 (e.g., vector coprocessors) connected to one or more of these processors, memory 220, custom circuitry 222, system components and resources 224, an interconnect / bus module 226, one or more temperature sensors 230, a thermal management unit 232, and a thermal power envelope (TPE) component 234. The second SOC 204 may include a 5G modem processor 252, a power management unit 254, an interconnect / bus module 264, multiple mmWave transceivers 256, memory 258, and various additional processors 260 such as application processors, packet processors, etc.

[0099] Each processor 210, 212, 214, 216, 218, 252, 260 may include one or more cores, and each processor / core may perform operations independently of other processors / cores. For example, the first SOC 202 may include a processor running a first type of operating system (e.g., FreeBSD, LINUX, OS X, etc.) and a processor running a second type of operating system (e.g., MICROSOFT WINDOWS 10). Additionally, any or all of processors 210, 212, 214, 216, 218, 252, 260 may be included as part of a processor cluster architecture (e.g., synchronous processor cluster architecture, asynchronous or heterogeneous processor cluster architecture, etc.).

[0100] The first and second SOCs 202 and 204 may include various system components, resources, and custom circuitry for managing sensor data, analog-to-digital conversion, wireless data transmission, and performing other specialized operations such as decoding data packets and processing encoded audio and video signals for rendering in a web browser. For example, the system components and resources 224 of the first SOC 202 may include power amplifiers, voltage regulators, crystal oscillators, phase-locked loops, peripheral bridges, data controllers, memory controllers, system controllers, access ports, timers, and other similar components used to support the processor and software clients running on wireless devices. System components and resources 224 and / or custom circuitry 222 may also include circuitry for interfacing with peripheral devices such as cameras, electronic displays, wireless communication devices, and external memory chips.

[0101] The first and second SOCs 202, 204 can communicate via interconnect / bus module 250. Various processors 210, 212, 214, 216, 218 can be interconnected to one or more memory elements 220, system components and resources 224, custom circuitry 222, and thermal management unit 232 via interconnect / bus module 226. Similarly, processor 252 can be interconnected to power management unit 254, mm-wave transceiver 256, memory 258, and various additional processors 260 via interconnect / bus module 264. Interconnect / bus modules 226, 250, 264 may include arrays of reconfigurable logic gates and / or implement bus architectures (e.g., CoreConnect, AMBA, etc.). Communication can be provided via advanced interconnects such as high-performance monolithic networks (NoC).

[0102] The first and / or second SOCs 202, 204 may further include input / output modules (not shown) for communicating with external SOC resources such as clock 206, voltage regulator 208, one or more wireless transceivers 266, and at least one SIM 268 and / or SIM interface (i.e., an interface for receiving one or more SIM cards). External SOC resources (e.g., clock 206, voltage regulator 208) may be shared by two or more internal SOC processors / cores. At least one SIM 268 (or one or more SIM cards coupled to one or more SIM interfaces) may store information supporting multiple subscriptions, including a first 5G NR subscription and a second 5G NR subscription.

[0103] In addition to the example SIP 200 discussed above, various embodiments can be implemented in a wide variety of computing systems, including single processors, multiple processors, multi-core processors, or any combination thereof.

[0104] Figure 3A An example of a software architecture 300 is shown, including a wireless protocol stack for the user and control planes in wireless communication between a base station 350 (e.g., base station 110a) and a wireless device (UE computing device) 320 (e.g., wireless devices 120a-120e, 200). References Figure 1-3A The wireless device 320 may implement a software architecture 300 to communicate with a base station 350 of a communication system (e.g., 100). In various embodiments, layers in the software architecture 300 may form logical connections to corresponding layers in the software of the base station 350. The software architecture 300 may be distributed across one or more processors (e.g., processors 212, 214, 216, 218, 252, 260). Although shown with respect to a single wireless protocol stack, in a multi-SIM (Subscriber Identity Module) wireless device, the software architecture 300 may include multiple protocol stacks, each of which may be associated with a different SIM (e.g., in a dual-SIM wireless communication device, two protocol stacks associated with two SIMs respectively). Although described below with reference to the LTE communication layer, the software architecture 300 may support any of the various standards and protocols used for wireless communication and / or may include any additional protocol stacks supporting various standards and protocols for wireless communication.

[0105] Software architecture 300 may include a Non-Access Stratum (NAS) 302 and an Access Stratum (AS) 304. NAS 302 may include functions and protocols for supporting services and signaling between a SIM (e.g., SIM 204) of a radio device and its core network 140, including packet filtering, security management, mobility control, session management, and other functions. AS 304 may include functions and protocols for supporting communication between the SIM (e.g., SIM 204) and entities of the supported access network (e.g., base stations). Specifically, AS 304 may include at least three layers (Layer 1, Layer 2, and Layer 3), each of which may contain various sublayers.

[0106] In the user and control plane, Layer 1 (L1) of AS 304 can be the Physical Layer (PHY) 306, which can supervise the implementation of transmission and / or reception functions over the air interface. Examples of such Physical Layer 306 functions may include Cyclic Redundancy Check (CRC) appending, block encoding, scrambling and descrambling, modulation and demodulation, signal measurement, MIMO, etc. The Physical Layer may include various logical channels, including the Physical Downlink Control Channel (PDCCH) and the Physical Downlink Shared Channel (PDSCH).

[0107] In the user and control plane, Layer 2 (L2) of AS 304 can be responsible for the link between the wireless device 320 and the base station 350 based on Physical Layer 306. In various embodiments, Layer 2 may include a Media Access Control (MAC) sublayer 308, a Radio Link Control (RLC) sublayer 310, and a Packet Data Convergence Protocol (PDCP) sublayer 312, each of which forms a logical connection that terminates at the base station 350.

[0108] In the control plane, Layer 3 (L3) of AS 304 may include a Radio Resource Control (RRC) sublayer 3. Although not shown, the software architecture 300 may include additional Layer 3 sublayers and various upper layers above Layer 3. In various embodiments, the RRC sublayer 313 may provide functions including broadcasting system information, paging, and establishing and releasing RRC signaling connections between the radio device 320 and the base station 350.

[0109] In various embodiments, PDCP sublayer 312 can provide uplink functions including multiplexing between different radio bearers and logical channels, sequence number increment, handover data processing, integrity protection, encryption, and header compression. In the downlink, PDCP sublayer 312 can provide functions including ordered delivery of data packets, duplicate data packet detection, integrity verification, decryption, and header decompression.

[0110] In the uplink, RLC sublayer 310 can provide segmentation and concatenation of upper-layer data packets, retransmission of lost data packets, and Automatic Repeat Request (ARQ). In the downlink, RLC sublayer 310 can include rearrangement of data packets to compensate for out-of-order reception, reassembly of upper-layer data packets, and ARQ.

[0111] In the uplink, MAC sublayer 308 can provide functions including multiplexing between logical and transport channels, random access procedures, logical channel prioritization, and hybrid ARQ (HARQ) operations. In the downlink, MAC layer functions can include intra-cell channel mapping, demultiplexing, discontinuous reception (DRX), and HARQ operations.

[0112] While the software architecture 300 can provide functionality for transmitting data over a physical medium, it may further include at least one host layer 314 for providing data transmission services to various applications within the wireless device 320. In some embodiments, dedicated functionality provided by the at least one host layer 314 may provide an interface between the software architecture and the general-purpose processor 206.

[0113] In other embodiments, software architecture 300 may include one or more higher logical layers (e.g., transport, session, presentation, application, etc.) that provide host-layer functionality. For example, in some embodiments, software architecture 300 may include a network layer (e.g., Internet Protocol (IP) layer) in which logical connections terminate at a Packet Data Network (PDN) gateway (PGW). In some embodiments, software architecture 300 may include an application layer in which logical connections terminate at another device (e.g., end-user equipment, server, etc.). In some embodiments, software architecture 300 may further include a hardware interface 316 in AS 304 between physical layer 306 and communication hardware (e.g., one or more radio frequency (RF) transceivers).

[0114] Figure 3B This is a diagram showing the allocation within the carrier bandwidth of 360. (Reference) Figure 1-3B The carrier bandwidth 360 can be defined relative to an initial carrier resource block (CRB) such as CRB#0 at point A. The carrier bandwidth 360 can be used by the 5G NR base station (e.g., base station 110a, 350) to transmit signals to wireless devices communicating with the base station (e.g., in…). Figure 3B The frequency bands provided by the wireless devices (referred to as UE1 and UE2) are defined within the carrier bandwidth 360. BWPs for wireless devices (e.g., wireless devices 120a-120e, 200, 320) can be defined within the carrier bandwidth 360 to enable the wireless devices to receive services within the carrier bandwidth 360. In some embodiments, a wireless device may have one or more BWPs. For example, a wireless device may be configured to have up to four downlink (DL) BWPs. In some embodiments, a wireless device may activate only one BWP at a time. In some embodiments, a wireless device may activate more than one BWP at a time. Figure 3B Four example BWPs are shown: BWP#1 361 for UE1, BWP#2 362 for UE1, BWP#1 363 for UE2, and BWP#1 364 for UE2. Each BWP 361-364 can have its own corresponding zero-based PRB index (e.g., PRB#0). (See also...) Figure 3B As shown, a base station can transmit multicast service 365 within a portion of the carrier bandwidth 360. Based on the overlap between BWPs, if UE1 activates BWP#1 361 and UE2 activates BWP#2 363, then the two radio devices (e.g., Figure 3BUE1 and UE2 (referenced in the original text) can receive multicast service 365. However, if UE1 activates BWP#2 362 and UE2 activates BWP#2 364, then UE1 and UE2 will not receive multicast service 365. Additionally, UE1's BWP#1 361 and UE2's BWP#1 363 have unaligned PRB indices, and the SCS, CP length, RA type, etc., configured for the BWPs can be different. The multiple different radio device-specific BWPs and the failure of radio device-specific BWPs communicating with the base station to overlap with the multicast transmissions necessary to support multicast services from 5G NR base stations complicate radio resource allocation.

[0115] A solution for supporting multicast services from base stations according to various embodiments (such as 5G NR base stations according to various embodiments) can be as follows: Figure 3C The image shows downlink (DL) frequency resources configured for multicast communication with a carrier bandwidth of 360. Figure 3C According to various embodiments, the DL frequency resource is shown as a multicast BWP allocated as a virtual BWP of 374 within a carrier bandwidth of 360. (See references.) Figure 1-3C The virtual BWP allocation 374 may not be the defined actual BWP; instead, the virtual BWP 374 may be a subset of the BWP's parameters. The virtual BWP 374 can be configured by the base station to be fully included in the radio device (in...). Figure 3C The virtual BWP 361, referred to as UE 1, has the same SCS and CP length. In various embodiments, the network (e.g., a base station) can configure the virtual BWP 361 such that radio devices receiving the same multicast service 365 can have an active DL BWP that fully encompasses the virtual BWP 361. In some embodiments, the virtual BWP 361 can be identified to radio devices by configuration elements such as the start RB and RB length elements.

[0116] Figure 3C It is also shown that a virtual BWP 374 can be identified to a wireless device via CORESET 372 bandwidth configuration. As an example, the wireless device can be configured to have a special CORESET 372 for multicast. The virtual BWP 374 bandwidth can be determined by the lowest and highest RB indices of the CORESET 372 for multicast. In some embodiments, assuming the wireless device is configured to have multiple special CORESETs for multicast, the virtual BWP 374 bandwidth can be determined as the union of the multiple CORESETs (e.g., the lowest RB index in the CORESET up to the highest RB index in the CORESET).

[0117] A further solution for supporting multicast services from base stations according to various embodiments (such as 5G NR base stations according to various embodiments) could be as follows: Figure 3D The diagram shows multiple DL frequency resources configured for multicast communication with a carrier bandwidth of 360. Figure 3D According to various embodiments, the first DL frequency resource is shown as a first multicast BWP as a virtual BWP allocation 374 in carrier bandwidth 360, and the second DL frequency resource is shown as a second multicast BWP as a virtual BWP allocation 381 in carrier bandwidth 360. Reference Figure 1-3D Virtual BWP assignments 374 and 381 may not be the defined actual BWP; conversely, virtual BWP assignments 374 and 381 may be a subset of the BWP's parameters. For example, in... Figure 3D As shown, the first virtual BWP allocation 374 may be associated with a first DL BWP 361 of the wireless device, and the second virtual BWP allocation 381 may be associated with a second DL BWP 362. Virtual BWPs 374 and 381 can be configured by the base station to be fully contained within the wireless device (in the wireless device). Figure 3D Each specific BWP (such as BWP#1 361 and BWP#2 362) referred to as UE1 in this context is configured to have multiple DL frequency resources for multicast communication, such as multiple virtual multicast BWPs. In some embodiments, the wireless device may determine the virtual BWP allocation 374 or 381 to be monitored based on the active DL BWP 361 or 362.

[0118] Figure 4A This is a flowchart illustrating a method 400 for allocating wireless resources to support multicast services according to various embodiments. (Reference) Figure 1-4A The operation of method 400 can be implemented by a processor (e.g., 210, 212, 214, 216, 218, 252, 260) of a network computing device (e.g., base station 110a-d, 350). See reference. Figure 1-4A The unit used to perform each operation in method 400 may be one or more processors of a network computing device (e.g., base station 110a-d, 350), such as one or more of processors 210, 212, 214, 216, 218, 252, 260.

[0119] In block 402, the processor may perform operations including configuring two or more downlink (DL) frequency resources for multicast communication within a carrier bandwidth. In some embodiments, configuring two or more DL frequency resources for multicast communication within a carrier bandwidth may include: determining two or more DL BWPs configured (e.g., scheduled) within the carrier bandwidth, and configuring one DL frequency resource for multicast communication for each of the two or more DL BWPs configured (e.g., scheduled) within the carrier bandwidth. In some embodiments, configuring two or more DL frequency resources for multicast communication within a carrier bandwidth may include: determining two or more DL BWPs configured (e.g., scheduled) within the carrier bandwidth, and configuring one DL frequency resource for multicast communication for each corresponding DL BWP among the two or more DL BWPs configured (e.g., scheduled) within the carrier bandwidth. This allows DL BWPs configured (e.g., scheduled) within the carrier bandwidth to be mapped one-to-one to a corresponding single DL frequency resource for multicast communication. In some embodiments, at least one DL frequency resource for multicast communication among two or more DL frequency resources within a carrier bandwidth may be associated with two or more DL BWPs configured (e.g., scheduled for) within the carrier bandwidth. In some embodiments, the two or more DL frequency resources for multicast communication may be two or more CORESETs for multicast communication. In some embodiments, the two or more DL frequency resources for multicast communication may be two or more bandwidth portions (BWPs) for multicast communication. In some embodiments, each DL frequency resource among the two or more DL frequency resources for multicast communication may be associated with a different service. In some embodiments, the different services may be associated with different G-RNTIs. In some embodiments, each DL frequency resource among the two or more DL frequency resources for multicast communication may have a different configuration. In some embodiments, the different configurations may be different search space sets or different physical channel configurations. In some embodiments, the two or more DL frequency resources for multicast communication may be multiple sets of two or more DL frequency resources for multicast communication, and each of the multiple sets may be associated with a different service.

[0120] In block 404, the processor may perform operations including sending an indication to one or more wireless devices communicating with a base station of two or more DL frequency resources for multicast communication. In some embodiments, the indication of the two or more DL frequency resources for multicast communication may include an indication of the association of each of the two or more DL frequency resources for multicast communication with at least one DL BWP. In some embodiments, the indication of association may include a pointer to at least one DL BWP or an identifier of at least one DL BWP. In some embodiments, the at least one DL BWP may be associated with a unicast transmission. In some embodiments, sending the indication of the two or more DL frequency resources for multicast communication to one or more wireless devices communicating with a base station may include: sending the indication of the two or more DL frequency resources for multicast communication to one or more wireless devices communicating with a base station in an RRC message.

[0121] In block 406, the processor may perform operations including scheduling the transmission of multicast data in at least one of two or more DL frequency resources used for multicast communication. In some embodiments, the base station may transmit multicast data according to the scheduling in at least one of two or more DL frequency resources used for multicast communication.

[0122] Figure 4B This is a flowchart illustrating a method 450 for allocating wireless resources to support multicast services according to various embodiments. (See also: [link to documentation]) Figure 1-4B The operation of method 400 can be performed by a processor (such as processors 210, 212, 214, 216, 218, 252, 260) of a wireless device (such as wireless devices 120a-120e, 200, 320). See reference. Figure 1-4B The unit for performing each operation in method 450 may be one or more processors of a wireless device (such as wireless devices 120a-120e, 200, 320), such as one or more of processors 210, 212, 214, 216, 218, 252, 260. In some embodiments, method 400 may be combined with... Figure 4A The operation execution method is 450.

[0123] In block 452, the processor may perform operations including receiving an indication of two or more DL frequency resources for multicast communication from a base station. In some embodiments, receiving an indication of two or more DL frequency resources for multicast communication from a base station may include receiving the indication in a unicast RRC message. In some embodiments, receiving an indication of two or more DL frequency resources for multicast communication from a base station may include receiving the indication in a multicast RRC message. In some embodiments, the two or more DL frequency resources for multicast communication from a base station may include at least a first DL frequency resource associated with a multicast control channel and at least a second DL frequency resource associated with a multicast traffic channel. In some embodiments, the two or more DL frequency resources for multicast communication from a base station may be two or more CORESETs for multicast communication. In some embodiments, the two or more DL frequency resources for multicast communication from a base station may be two or more bandwidth portions (BWPs) for multicast communication. In some embodiments, each of two or more DL frequency resources used for multicast communication may be associated with a different service. In some embodiments, the two or more DL frequency resources used for multicast communication may be a plurality of sets of two or more DL frequency resources used for multicast communication, and each set may be associated with a different service. In some embodiments, the different services may be associated with different G-RNTIs. In some embodiments, each of the two or more DL frequency resources used for multicast communication may have a different configuration. In some embodiments, the different configurations are different search space sets or different physical channel configurations. In some embodiments, each of the two or more DL frequency resources used for multicast communication may be mapped to a corresponding single DL BWP configured (e.g., scheduled for it) within the carrier bandwidth. In some embodiments, the indication of two or more DL frequency resources used for multicast communication from a base station may indicate a one-to-one mapping between each of the two or more DL frequency resources used for multicast communication and a corresponding DL BWP configured (e.g., scheduled for it) within the carrier bandwidth. Such a one-to-one mapping between DL BWPs and DL frequency resources used for multicast communication can support the selection of DL frequency resources for multicast communication by active DL BWPs, at least in part, based on the DL frequency resources mapped to them.

[0124] In block 454, the processor may perform an operation including selecting, at least partially based on the active DL BWP, a DL frequency resource for multicast communication from two or more DL frequency resources for multicast communication from a base station to monitor multicast data transmission from the base station. In some embodiments, the selection of the DL frequency resource for multicast communication may be implicit. In some embodiments, the selection of the DL frequency resource for multicast communication may be explicit, notified by a base station signal. In some embodiments, selecting, at least partially based on the active DL BWP, a DL frequency resource for multicast communication from two or more DL frequency resources for multicast communication from a base station to monitor multicast data transmission from the base station may include: receiving from the base station an indication from the base station of a DL frequency resource for multicast communication to be monitored in the active DL BWP, and selecting the indicated DL frequency resource for multicast communication to be monitored in the active DL BWP. In some embodiments, the indication from the base station in a unicast RRC message to monitor a DL frequency resource for multicast communication from two or more DL frequency resources for multicast communication from the base station in the active DL BWP may be received from the base station. In some embodiments, DL frequency resources to be monitored may be selected based on each service. In some embodiments, selecting DL frequency resources for multicast communication from two or more DL frequency resources for multicast communication from a base station to monitor multicast data transmission from the base station may include: selecting DL frequency resources for multicast communication from two or more DL frequency resources for multicast communication from a base station to monitor multicast data transmission from the base station based at least in part on the active DL BWP and the selection of one of the different services.

[0125] In block 456, the processor can perform operations including selecting DL frequency resources for multicast communication based on monitoring the transmission of multicast data from the base station. In this way, the wireless device can receive multicast data for multicast services.

[0126] Figure 5A This is a block diagram illustrating the association between the downlink (DL) bandwidth portion (BWP) and DL frequency resources used for multicast communication according to various embodiments. Reference Figure 1-5A , Figure 5AThis illustrates a one-to-one association between a DL BWP and a DL frequency resource (such as a multicast BWP) used for multicast communication. For example, each corresponding DL BWP configured within the carrier bandwidth can be configured with a DL frequency resource (such as a multicast BWP) for multicast communication such that each DL BWP is associated with its own corresponding DL frequency resource for multicast communication (such as its own corresponding multicast BWP). Figure 5A This illustrates configuring DL frequency resources (such as multicast BWPs) for multicast communication for each DL BWP configured within a carrier bandwidth such that a one-to-one mapping exists between each DL frequency resource for multicast communication and each DL BWP configured within the carrier bandwidth, such as a one-to-one mapping between each multicast BWP and each DL BWP. To support such a one-to-one mapping between each DL frequency resource (such as each multicast BWP) for multicast communication and each DL BWP configured within the carrier bandwidth, in various embodiments, configuring two or more DL frequency resources for multicast communication within the carrier bandwidth may include: determining two or more DL BWPs configured within the carrier bandwidth, and configuring DL frequency resources for multicast communication for each of the two or more DL BWPs configured within the carrier bandwidth such that a one-to-one mapping exists between each DL frequency resource for multicast communication and each of the two or more DL BWPs configured within the carrier bandwidth. Figure 5A In the example shown, MC BWP 1 can be configured for DL ​​BWP 1, MC BWP 2 can be configured for DL ​​BWP 2, MC BWP 3 can be configured for DL ​​BWP 3, and MC BWP4 can be configured for DL ​​BWP 4.

[0127] Figure 5B This is a block diagram illustrating the association between a DL BWP and DL frequency resources for multicast communication according to various embodiments. Reference Figure 1-5B , Figure 5B This illustrates a many-to-one association between DL BWPs and DL frequency resources (such as multicast BWPs) used for multicast communication. Specifically, Figure 5B This demonstrates how DL BWPs 3 and 4 can be mapped to a single multicast BWP (such as multicast BWP ID 3).

[0128] Figure 6A This is a flowchart illustrating a method 600 for allocating wireless resources to support multicast services according to various embodiments. (See also: [link to document]) Figure 1-6AThe operation of method 600 can be performed by a processor (such as processors 210, 212, 214, 216, 218, 252, 260) of a wireless device (such as wireless devices 120a-120e, 200, 320). See reference. Figure 1-6A The unit for performing each operation in method 600 may be one or more processors of a wireless device (such as wireless devices 120a-120e, 200, 320), such as one or more of processors 210, 212, 214, 216, 218, 252, 260. In some embodiments, method 450 may be combined with... Figure 4B The operation executes method 600. As a concrete example, it can be used as... Figure 4B As part of the operation of block 454, the operation of method 600 is performed to select, at least in part, a DL frequency resource for multicast communication from two or more DL frequency resources for multicast communication from the base station based on the active DL BWP to monitor multicast data transmission from the base station.

[0129] In block 602, the processor may perform operations including determining the active DL BWP.

[0130] In block 604, the processor may perform operations including determining the digital scheme of the active DL BWP.

[0131] In block 606, the processor may perform operations including selecting from two or more DL frequency resources for multicast communication from the base station that are fully contained within the active DL BWP and / or have the same digital scheme as the active DL BWP to monitor multicast data transmission from the base station.

[0132] Figure 6B This is a diagram illustrating the virtual BWP allocation in the carrier bandwidth according to various embodiments. Reference Figure 1-6B ,exist Figure 6B The diagram illustrates the allocation of DL frequency resources for multicast communication within the same DL BWP 361, where more than one DL frequency resource (such as more than one virtual multicast BWP 601 and 374) is allocated for multicast. Figure 6B According to various embodiments, three DL frequency resources are shown as multicast BWPs, which are virtual BWP allocations 374, 381, and 601 in carrier bandwidth 360. Virtual BWP allocations 374, 381, and 601 may not be defined actual BWPs; rather, they may be subsets of the parameters of a BWP. For example, in... Figure 6BAs shown, the first DL BWP 361 of the wireless device may be associated with more than one virtual BWP allocation (such as virtual BWP allocation 601 for multicast and virtual BWP allocation 374 for multicast). Virtual BWP allocation 601 for multicast and virtual BWP allocation 374 for multicast may both be completely contained within the first DL BWP 361 of the wireless device.

[0133] In some embodiments, the wireless device may be configured to select either a virtual BWP allocation 601 or a virtual BWP allocation 374 for multicast based on a tie-breaking condition. In some embodiments, the tie-breaking condition may be based on an identifier of a DL frequency resource used for multicast communication, such as a multicast BWP identifier (BWP ID). For example, the wireless device may be configured such that the tie-breaking condition is the lowest DL frequency resource identifier used for multicast communication (e.g., the lowest multicast BWP ID). When the wireless device's first DL BWP 361 is active, the wireless device may select from the fully encompassed virtual BWP allocations for multicast based on the tie-breaking condition. Figure 6B As shown, the wireless device can select a virtual BWP allocation 601 for multicast that is lower (e.g., 0) than any other fully included virtual BWP allocation 374 for multicast (e.g., 1).

[0134] In some embodiments, the tie-breaking condition can be based on explicit priority parameters such as the setting of preferred DL frequency resources for multicast communication. For example, the setting can be to prefer a particular virtual BWP allocation over all other BWPs. In some embodiments, selecting a fully included virtual BWP allocation from the active DL BWPs for multicast over another fully included virtual BWP allocation can be a setting specific to the wireless device implementation.

[0135] Figure 6C This is a flowchart illustrating a method 620 for allocating wireless resources to support multicast services according to various embodiments. (See also: [link to documentation]) Figure 1-6C The operation of method 620 can be performed by a processor (such as processors 210, 212, 214, 216, 218, 252, 260) of a wireless device (such as wireless devices 120a-120e, 200, 320). See reference. Figure 1-6CThe unit for performing each operation in method 620 may be one or more processors of a wireless device (such as wireless devices 120a-120e, 200, 320), such as one or more of processors 210, 212, 214, 216, 218, 252, 260. In some embodiments, method 450 may be combined with... Figure 4B The operation of method 620 is executed. As a concrete example, it can be used as... Figure 4B As part of the operation of block 454, the operation of method 600 is performed to select, at least in part, a DL frequency resource for multicast communication from two or more DL frequency resources for multicast communication from the base station based on the active DL BWP to monitor multicast data transmission from the base station.

[0136] In block 602, the processor may perform operations including determining the active DL BWP.

[0137] In block 604, the processor may perform operations including determining the digital scheme of the active DL BWP.

[0138] In block 622, the processor may perform operations including determining that two or more DL frequency resources for multicast communication from the base station are fully contained within the active DL BWP and / or have the same digital scheme as the active DL BWP.

[0139] In block 624, the processor may perform operations including selecting one DL frequency resource for multicast communication from two or more determined DL frequency resources for multicast communication based on a tie-breaking condition. In some embodiments, the tie-breaking condition may be the lowest DL frequency resource identifier for multicast communication. In some embodiments, the tie-breaking condition may be a wireless device setting for a preferred DL frequency resource for multicast communication.

[0140] Figure 7A This is a flowchart illustrating a method 700 for allocating wireless resources to support multicast services according to various embodiments. (Reference) Figure 1-7A The operation of method 700 can be implemented by the processor of a network computing device (e.g., base station 110a-d, 350). (See reference) Figure 1-7A The unit for performing each operation in method 700 may be one or more processors of a network computing device (e.g., base station 110a-d, 350), such as one or more of processors 210, 212, 214, 216, 218, 252, 260. In some embodiments, method 400 may be combined with... Figure 4A The operation execution method 700 is executed.

[0141] In block 702, the processor may perform operations including determining a change in the association between each of two or more DL frequency resources used for multicast communication and at least one DL BWP.

[0142] In block 704, the processor may perform operations including sending an indication to one or more wireless devices communicating with a base station of a change in the association between each of two or more DL frequency resources for multicast communication and at least one DL BWP. In some embodiments, sending the indication of the change in the association between each of two or more DL frequency resources for multicast communication and at least one DL BWP to one or more wireless devices communicating with a base station may include sending the indication of the change in the association between each of two or more DL frequency resources for multicast communication and at least one DL BWP to one or more wireless devices communicating with a base station in a downlink control information (DCI) or media access control (MAC) control unit (CE) message.

[0143] Figure 7B This is a flowchart illustrating a method 750 for allocating wireless resources to support multicast services according to various embodiments. (See also: [link to documentation]) Figure 1-7B The operation of method 750 can be performed by a processor (such as processors 210, 212, 214, 216, 218, 252, 260) of a wireless device (such as wireless devices 120a-120e, 200, 320). See reference. Figure 1-7B The unit for performing each operation in method 750 may be one or more processors of a wireless device (such as wireless devices 120a-120e, 200, 320), such as one or more of processors 210, 212, 214, 216, 218, 252, 260. In some embodiments, method 450 may be combined with... Figure 4B Method 600 Figure 6A ) and / or method 620 ( Figure 6C The operation execution method is 750.

[0144] In block 752, the processor may perform operations including receiving from the base station an indication of the DL frequency resources used for multicast communication in two or more DL frequency resources for monitoring in an active DL BWP. In some embodiments, the indication of a change in association is received in a downlink control information (DCI) or media access control (MAC) configuration unit (CE) message.

[0145] In block 754, the processor may perform operations including selecting the indicated DL frequency resources for multicast communication for monitoring in the active DL BWP.

[0146] Figure 8A This is a flowchart illustrating a method 800 for allocating wireless resources to support multicast services according to various embodiments. (Reference) Figure 1-8A The operation of method 800 can be implemented by the processor of a network computing device (e.g., base station 110a-d, 350). (See reference) Figure 1-8A The unit for performing each operation in method 800 may be one or more processors of a network computing device (e.g., base station 110a-d, 350), such as one or more of processors 210, 212, 214, 216, 218, 252, 260. In some embodiments, method 400 may be combined with... Figure 4A ) and / or method 700 ( Figure 7A The operation execution method is 800.

[0147] In block 802, the processor may perform operations including configuring an uplink (UL) frequency resource for multicast communication for each of two or more DL frequency resources used for multicast communication.

[0148] In block 804, the processor may perform operations including sending an indication of UL frequency resources for multicast communication to one or more wireless devices communicating with a base station. In some embodiments, the indication of UL frequency resources for multicast communication may include an association of each UL frequency resource with a corresponding one of two or more DL frequency resources for multicast communication.

[0149] In block 806, the processor may perform operations including receiving multicast feedback data from at least one of one or more wireless devices in a UL frequency resource for multicast communication.

[0150] Figure 8B This is a flowchart illustrating a method 850 for allocating wireless resources to support multicast services according to various embodiments. (See also: [link to documentation]) Figure 1-8B The operation of method 850 can be performed by a processor (such as processor 210, 212, 214, 216, 218, 252, 260) of a wireless device (such as wireless devices 120a-120e, 200, 320). See reference. Figure 1-8BThe unit for performing each operation in method 850 may be one or more processors of a wireless device (such as wireless devices 120a-120e, 200, 320), such as one or more of processors 210, 212, 214, 216, 218, 252, 260. In some embodiments, method 450 may be combined with... Figure 4B Method 600 Figure 6A Method 620 Figure 6C ) and / or method 750 ( Figure 7B The operation execution method is 850.

[0151] In block 852, the processor may perform operations including determining the feedback configuration for the active DL BWP.

[0152] In block 854, the processor may perform operations including sending multicast feedback data to the base station according to the feedback configuration for the active DL BWP.

[0153] Figure 8C This is a flowchart illustrating a method 860 for allocating wireless resources to support multicast services according to various embodiments. (See also: [link to documentation]) Figure 1-8B The operation of method 860 can be performed by a processor (such as processors 210, 212, 214, 216, 218, 252, 260) of a wireless device (such as wireless devices 120a-120e, 200, 320). See reference. Figure 1-8C The unit for performing each operation in method 860 may be one or more processors of a wireless device (such as wireless devices 120a-120e, 200, 320), such as one or more of processors 210, 212, 214, 216, 218, 252, 260. In some embodiments, method 450 may be combined with... Figure 4B Method 600 Figure 6A Method 620 Figure 6C ) and / or method 750 ( Figure 7B The operation execution method is 860.

[0154] In block 862, the processor may perform operations including receiving indications for two or more uplink (UL) frequency resources for multicast communication. In some embodiments, the indications for the two or more UL frequency resources for multicast communication may associate each of the two or more UL frequency resources for multicast with one of the two or more DL frequency resources for multicast communication. In some embodiments, one of the two or more UL frequency resources for multicast is selected, at least in part, based on the active DL BWP, for use when transmitting multicast feedback data to the base station.

[0155] In block 864, the processor may perform operations including sending multicast feedback data to the base station using at least one of two or more UL frequency resources for multicast communication.

[0156] Figure 9 This is a component block diagram of a network computing device 900, such as a base station (e.g., base station 110a-d, 350), suitable for use in various embodiments. Such a network computing device (e.g., a base station such as a gNB, eNB, etc.) may include at least Figure 9 The components shown in the image. (Reference) Figure 1-9 The network computing device 900 may include a processor 901 coupled to volatile memory 902 and a large-capacity non-volatile memory such as a disk drive 903.

[0157] The network computing device 900 may also include a peripheral storage access device such as a floppy disk drive, compact disc (CD) or digital video optical disc (DVD) drive 906 coupled to the processor 901. The network computing device 900 may also include a network access port 904 (or interface) coupled to the processor 901 for establishing data connections to networks such as the Internet and / or local area networks coupled to other system computers and servers.

[0158] The network computing device 900 may include one or more antennas 907 that can be connected to a wireless communication link for transmitting and receiving electromagnetic radiation. The network computing device 900 may also include additional access ports such as USB, FireWire, Thunderbolt, etc., for coupling to peripherals, external memory, or other devices.

[0159] Figure 10 This is a component block diagram of a wireless device 1000 suitable for use in various embodiments. Reference Figure 1-10 Various embodiments can be implemented on a variety of wireless devices 1000 (e.g., wireless devices 120a-120e, 200, 320). Figure 10An example of a wireless device 1000 is shown in the form of a smartphone. The wireless device 1000 may include a first SOC 202 (e.g., an SOC-CPU) coupled to a second SOC 204 (e.g., a 5G-enabled SOC). The first and second SOCs 202 and 204 may be coupled to internal memory 1016, a display 1012, and a speaker 1014. The first and second SOCs 202 and 204 may also be coupled to at least one SIM 268 and / or SIM interface, which may store information supporting a first subscription, such as a first 5G NR subscription, and a second subscription, such as a second 5G NR subscription, which may, for example, support services on a 5G non-standalone (NSA) network.

[0160] Wireless device 1000 may include an antenna 1004 for transmitting and receiving electromagnetic radiation that can be connected to a wireless transceiver 266, which is coupled to one or more processors in the first and / or second SOCs 202, 204. Wireless device 1000 may also include a menu selection button or a joystick switch 1020 for receiving user input.

[0161] The wireless device 1000 also includes a sound encoding / decoding (codec) circuit 1010, which digitizes sound received from the microphone into data packets suitable for wireless transmission and decodes the received sound data packets to generate an analog signal provided to the speaker to produce sound. Furthermore, one or more of the processor in the first and second SOCs 202, 204, the wireless transceiver 266, and the codec 1010 may include a digital signal processor (DSP) circuit (not shown separately).

[0162] The processors of wireless network computing device 700 and wireless device 1000 can be any programmable microprocessor, microcomputer, or multiprocessor chip or multiple multiprocessor chips that can be configured by software instructions (applications) to perform various functions including those described in the various embodiments below. In some mobile devices, multiple processors may be provided, such as one dedicated to wireless communication functions within SOC 204 and one dedicated to running other applications within SOC 202. Software applications may be stored in memories 220, 1016 before they are accessed and loaded into the processor. The processor may include sufficient internal memory to store application software instructions.

[0163] As used herein, the terms “component,” “module,” “system,” etc., are intended to include computer-related entities configured to perform specific operations or functions, such as, but not limited to, hardware, firmware, combinations of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an executing thread, a program, and / or a computer. As an example, both an application running on a wireless device and the wireless device itself can be referred to as a component. One or more components may reside within a process and / or an executing thread, and a component may be located locally on a processor or core and / or distributed across two or more processors or cores. Furthermore, these components may be executable from various non-transitory computer-readable media having various instructions and / or data structures present therein. Components may communicate via local and / or remote processes, function or procedure calls, electronic signals, data packets, memory read / write, and other known network, computer, processor, and / or process-related communication methods.

[0164] Several different cellular and mobile communication services and standards are available or envisioned for the future, all of which can be implemented and benefit from various embodiments. Such services and standards include, for example, the 3rd Generation Partnership Project (3GPP), LTE systems, 3rd generation (3G), 4th generation (4G), 5th generation (5G) and later generations of 3GPP technologies, Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), 3GSM, General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA) systems (e.g., cdmaOne, CDMA1020TM), Enhanced Data Rate GSM Evolution (EDGE), Advanced Mobile Phone Systems (AMPS), Digital AMPS (IS-136 / TDMA), Evolved Data Optimized (EV-DO), Digital Enhanced Cordless Telecommunications (DECT), Global Interoperability Microwave Access (WiMAX), and Integrated Digital Enhanced Network (iDEN). Each of these technologies relates to the transmission and reception of, for example, voice, data, signaling, and / or content messages. It should be understood that any references to terms and / or technical details relating to a single telecommunications standard or technology are for illustrative purposes only and are not intended to limit the scope of the claims to a specific communication system or technology unless specifically stated in the language of the claims.

[0165] The various embodiments shown and described are provided merely as examples for illustrating the various features of the claims. However, the features shown and described with respect to any given embodiment are not necessarily limited to that associated embodiment and may be used or combined with other embodiments shown and described. Furthermore, the claims are not intended to be limited to any one of the example embodiments. For example, one or more operations of methods 400, 450, 600, 620, 700, 750, 800, 850 and / or 860 may be replaced by or combined with one or more operations of methods 400, 450, 600, 620, 700, 750, 800, 850 and / or 860.

[0166] The following paragraphs describe examples of implementations of the method that can be implemented in a base station. Although implementation examples 1-17 are described with reference to the example methods, further example implementations described in the following paragraphs include: example methods implemented by a base station including a processor configured to perform operations of the example methods; example methods implemented by a base station including units for performing functions of the example methods; and example methods implemented on a non-transitory processor-readable storage medium having processor-executable instructions stored thereon configured to cause the processor of the base station to perform operations of the example methods.

[0167] Example 1. A method for allocating radio resources to support multicast services, executed by a processor of a base station (such as a Long Term Evolution (LTE) base station, a 5G New Radio (NR) base station, a later generation base station, etc.), comprising: configuring two or more downlink (DL) frequency resources for multicast communication within a carrier bandwidth; sending an indication to one or more radio devices communicating with the base station of the two or more DL frequency resources for multicast communication; and scheduling multicast data transmission in at least one of the two or more DL frequency resources for multicast communication.

[0168] Example 2, according to the method of Example 1, wherein configuring the two or more DL frequency resources for multicast communication within the carrier bandwidth includes: determining two or more DL bandwidth portions (BWPs) configured within the carrier bandwidth; and configuring DL frequency resources for multicast communication for each of the two or more DL BWPs configured within the carrier bandwidth.

[0169] Example 3, according to the method of Example 1, wherein at least one of the two or more DL frequency resources for multicast communication within the carrier bandwidth is associated with two or more DL BWPs configured within the carrier bandwidth.

[0170] Example 4, according to the method of Example 1, wherein the indication of the two or more DL frequency resources for multicast communication includes an indication of the association of each of the two or more DL frequency resources for multicast communication with at least one DL BWP.

[0171] Example 5, according to the method of Example 4, wherein the indication of the association includes a pointer to the at least one DL BWP or an identifier of the at least one DL BWP.

[0172] Example 6, the method according to Example 4, further includes: determining a change between the association of each of the two or more DL frequency resources for multicast communication and at least one DL BWP; and sending an indication to one or more wireless devices communicating with the base station of the change between the association of each of the two or more DL frequency resources for multicast communication and at least one DL BWP.

[0173] Example 7, according to the method of Example 6, wherein sending the indication to one or more wireless devices communicating with the base station regarding the change between the association of each of the two or more DL frequency resources for multicast communication and at least one DLBWP comprises: sending the indication in a Downlink Control Information (DCI) or Media Access Control (MAC) Configuration Unit (CE) message to one or more wireless devices communicating with the base station regarding the change between the association of each of the two or more DL frequency resources for multicast communication and at least one DLBWP.

[0174] Example 8. According to the method of Example 1, wherein sending the indication for the two or more DL frequency resources for multicast communication to the one or more wireless devices communicating with the base station comprises: sending the indication for the two or more DL frequency resources for multicast communication to the one or more wireless devices communicating with the base station in a Radio Resource Control (RRC) message.

[0175] Example 9, the method according to Example 1, further comprising: configuring an uplink (UL) frequency resource for multicast communication for each of the two or more DL frequency resources for multicast communication; sending an indication of the UL frequency resource for multicast communication to the one or more wireless devices communicating with the base station; and receiving multicast feedback data from at least one of the one or more wireless devices in the UL frequency resource for multicast communication.

[0176] Example 10, the method according to Example 9, wherein the indication of the UL frequency resources for multicast communication includes the association of each UL frequency resource with a corresponding one of the two or more DL frequency resources for multicast communication.

[0177] Example 11: According to the method of Example 1, wherein the two or more DL frequency resources for multicast communication are two or more control resource sets (CORESET) for multicast communication.

[0178] Example 12, according to the method of Example 1, wherein the two or more DL frequency resources for multicast communication are two or more bandwidth portions (BWP) for multicast communication.

[0179] Example 13, according to the method of Example 1, wherein each of the two or more DL frequency resources used for multicast communication is associated with a different service.

[0180] Example 14, according to the method of Example 13, wherein the different services are associated with different Group-Network Context Identifiers (G-RNTI).

[0181] Example 15: The method according to Example 1, wherein each of the two or more DL frequency resources used for multicast communication has a different configuration.

[0182] Example 16: The method described in Example 15, wherein the different configurations are different sets of search spaces or different physical channel configurations.

[0183] Example 17. According to the method of Example 1, wherein configuring the two or more DL frequency resources for multicast communication within the carrier bandwidth includes: determining two or more DL bandwidth portions (BWPs) configured within the carrier bandwidth; and configuring DL frequency resources for multicast communication for each of the two or more DL BWPs configured within the carrier bandwidth such that there is a one-to-one mapping between each DL frequency resource for multicast communication and each of the two or more DL BWPs configured within the carrier bandwidth.

[0184] Example 18: A base station including a processor configured to have processor-executable instructions for performing the operations described in any of Examples 1-17.

[0185] Example 19: A base station including a unit for performing the methods described in any one of Examples 1-17.

[0186] Example 20: A non-transitory processor-readable storage medium having processor-executable instructions stored thereon, configured to cause a processor of a base station to perform the operations described in any one of Examples 1-17.

[0187] The following paragraphs describe examples of implementations of the methods that can be implemented in a wireless device. Although implementation examples 1-17 are described with reference to the example methods, further example implementations described in the following paragraphs include: example methods implemented by a wireless device including a processor configured to perform the operations of the example methods; example methods implemented by a wireless device including units for performing the functions of the example methods; and example methods implemented on a non-transitory processor-readable storage medium having processor-executable instructions stored thereon configured to cause the processor of the wireless device to perform the operations of the example methods.

[0188] Example 21. A method for allocating radio resources to receive multicast services, executed by a processor of a wireless device (such as a Long Term Evolution (LTE) wireless device, a 5G New Radio (NR) wireless device, a later generation wireless device, etc.), comprising: receiving an indication of two or more downlink (DL) frequency resources for multicast communication from a base station; selecting, at least in part, the DL frequency resources for multicast communication from the two or more DL frequency resources for multicast communication based on an active DL bandwidth portion (BWP) to monitor multicast data transmission from the base station; and monitoring multicast data transmission from the base station in the selected DL frequency resources for multicast communication.

[0189] Example 22, according to the method of Example 21, wherein selecting the DL frequency resources for multicast communication from the two or more DL frequency resources for multicast communication from the base station based at least in part on the active DL BWP to monitor multicast data transmission from the base station comprises: determining the active DL BWP; determining the digital scheme of the active DL BWP; and selecting from the two or more DL frequency resources for multicast communication the DL frequency resources for multicast communication that are fully contained within the active DL BWP and / or have the same digital scheme as the active DL BWP to monitor multicast data transmission from the base station.

[0190] Example 23, according to the method of Example 21, wherein selecting the DL frequency resource for multicast communication from the two or more DL frequency resources for multicast communication from the base station based at least in part on the active DL BWP to monitor multicast data transmission from the base station comprises: determining the active DL BWP; determining the digital scheme of the active DL BWP; determining that two or more DL frequency resources for multicast communication among the two or more DL frequency resources for multicast communication from the base station are completely included in the active DL BWP and / or have the same digital scheme as the active DL BWP; and selecting one DL frequency resource for multicast communication from the determined two or more DL frequency resources for multicast communication based on a tie-breaking condition.

[0191] Example 24, according to the method of Example 23, wherein the tie-breaking condition is the lowest DL frequency resource identifier for multicast communication.

[0192] Example 25, the method according to Example 23, wherein the tie-breaking condition is set for a wireless device using a preferred DL frequency resource for multicast communication.

[0193] Example 26, according to the method of Example 21, wherein receiving the indication for the two or more DL frequency resources for multicast communication from the base station comprises: receiving the indication for the two or more DL frequency resources for multicast communication from the base station in a unicast radio resource control (RRC) message.

[0194] Example 27, according to the method of Example 21, wherein receiving the indication for the two or more DL frequency resources for multicast communication from the base station comprises: receiving the indication for the two or more DL frequency resources for multicast communication from the base station in a multicast Radio Resource Control (RRC) message.

[0195] Example 28, the method according to Example 27, wherein selecting the DL frequency resources for multicast communication from the two or more DL frequency resources for multicast communication from the base station to monitor multicast data transmission from the base station, at least in part based on the active DL BWP, comprises: receiving from the base station an indication of the DL frequency resources for multicast communication from the two or more DL frequency resources for multicast communication to be monitored in the active DL BWP; and selecting the indicated DL resource for multicast communication to be monitored in the active DL BWP.

[0196] Example 29, the method according to Example 28, wherein the indication from the base station of the DL frequency resources for multicast communication of the two or more DL frequency resources for multicast communication monitored in the active DL BWP is received from the base station in a unicast RRC message.

[0197] Example 30: According to the method of Example 21, the two or more DL frequency resources for multicast communication from the base station include: at least a first DL frequency resource associated with a multicast control channel for multicast communication from the base station; and at least a second DL frequency resource associated with a multicast service channel for multicast communication from the base station.

[0198] Example 31, the method according to Example 21, further comprising: receiving an indication of a change in the association of at least one of the two or more DL frequency resources for multicast communication with at least one DL BWP; and monitoring the at least one DL frequency resource for multicast communication according to the indication of the change in association.

[0199] Example 32, the method according to Example 31, wherein the indication of the associated change is received in a downlink control information (DCI) or media access control (MAC) configuration unit (CE) message.

[0200] Example 33, the method according to Example 21, further includes: determining a feedback configuration for the active DL BWP; and sending multicast feedback data to the base station according to the feedback configuration for the active DL BWP.

[0201] Example 34, the method according to Example 21, further includes: receiving an indication of two or more uplink (UL) frequency resources for multicast communication; and sending multicast feedback data to the base station using at least one of the two or more UL frequency resources for multicast communication.

[0202] Example 35, the method according to Example 34, wherein the indication of the two or more UL frequency resources for multicast communication associates each of the two or more UL frequency resources for multicast with one of the two or more DL frequency resources for multicast communication.

[0203] Example 36, the method according to Example 34, wherein one of the two or more UL frequency resources used for multicast is selected at least in part based on the active DL BWP being used when sending the multicast feedback data to the base station.

[0204] Example 37, the method according to Example 21, wherein the indication of the two or more DL frequency resources for multicast communication from the base station includes an indication of a feedback configuration for sending multicast feedback data to the base station.

[0205] Example 38, the method according to Example 21, wherein each of the two or more DL frequency resources used for multicast communication is associated with a different service.

[0206] Example 39, the method according to Example 38, wherein the different services are associated with different Group-Network Context Identifiers (G-RNTI).

[0207] Example 40, the method according to Example 21, wherein the two or more DL frequency resources for multicast communication include a plurality of sets of two or more DL frequency resources for multicast communication, and each of the plurality of sets is associated with a different service.

[0208] Example 41, the method according to Example 39, wherein selecting the DL frequency resources for multicast communication from the two or more DL frequency resources for multicast communication from the base station to monitor multicast data transmission from the base station, based at least in part on the active DL BWP, comprises: selecting the DL frequency resources for multicast communication from the two or more DL frequency resources for multicast communication from the base station to monitor multicast data transmission from the base station, based at least in part on the active DL BWP and the selection of one of the different services.

[0209] Example 42, the method according to Example 21, wherein each of the two or more DL frequency resources used for multicast communication has a different configuration.

[0210] Example 43: The method described in Example 42, wherein the different configurations are different sets of search spaces or different physical channel configurations.

[0211] Example 44, according to the method of Example 21, wherein the two or more DL frequency resources for multicast communication are two or more control resource sets (CORESET) for multicast communication.

[0212] Example 45, the method according to Example 21, wherein the two or more DL frequency resources for multicast communication are two or more bandwidth portions (BWP) for multicast communication.

[0213] Example 46, the method according to Example 21, wherein the indication of the two or more DL frequency resources for multicast communication is used to indicate a one-to-one mapping between each of the two or more DL frequency resources for multicast communication and a corresponding DL BWP configured within the carrier bandwidth.

[0214] Example 47: A wireless device including a processor configured to have processor-executable instructions for performing the operations described in any of Examples 21-46.

[0215] Example 48: A wireless device including a unit for performing the methods described in any one of Examples 21-46.

[0216] Example 49: A non-transitory processor-readable storage medium having processor-executable instructions stored thereon configured to cause a processor of a wireless device to perform the operations described in any of Examples 21-46.

[0217] Example 50: A system comprising: a wireless device including a processor configured to have processor-executable instructions for performing the operations described in any of Examples 21-46; and a base station including a processor configured to have processor-executable instructions for performing the operations described in any of Examples 1-17.

[0218] Example 51: A system comprising: a wireless device including units for performing the methods described in any one of Examples 21-46; and a base station including units for performing the methods described in any one of Examples 1-17.

[0219] The foregoing method descriptions and flowcharts are provided by way of illustrative example only and are not intended to require or imply that the operations of the various embodiments must be performed in the presented order. As those skilled in the art will recognize, the operations in the foregoing embodiments can be performed in any order. Terms such as "afterwards," "then," "next," etc., are not intended to limit the order of operations; these terms are used to guide the reader through the description of the method. Furthermore, any reference to an element of the claim in the singular, such as the use of the articles "a," "one," or "that," should not be construed as limiting that element to the singular.

[0220] The various illustrative logic blocks, modules, components, circuits, and algorithmic operations described in conjunction with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or a combination of both. To clearly illustrate this interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and operations have been described above in general terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art can implement the described functionality in different ways for each specific application, but such implementation decisions should not be construed as departing from the scope of the claims.

[0221] The hardware used to implement the various illustrative logics, logic blocks, modules, and circuits described in conjunction with the embodiments disclosed herein can be implemented or performed using a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of receiver intelligent objects, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration. Alternatively, some operations or methods may be performed by circuitry dedicated to a given function.

[0222] In one or more embodiments, the described functionality can be implemented using hardware, software, firmware, or any combination thereof. If implemented in software, the functionality can be stored as one or more instructions or code on a non-transitory computer-readable storage medium or a non-transitory processor-readable storage medium. The operation of the methods or algorithms disclosed herein can be embodied in a processor-executable software module or processor-executable instructions that may be located on a non-transitory computer-readable or processor-readable storage medium. A non-transitory computer-readable or processor-readable storage medium can be any storage medium accessible to a computer or processor. By way of example and not limitation, such a non-transitory computer-readable or processor-readable storage medium may include RAM, ROM, EEPROM, flash memory, CD-ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage smart objects or any other medium that can be used to store desired program code in the form of instructions or data structures and that is accessible to a computer. As used herein, disks and optical discs include compact discs (CDs), laser discs, optical discs, digital versatile optical discs (DVDs), floppy disks, and Blu-ray discs, wherein disks typically magnetically copy data, while optical discs optically copy data using lasers. Combinations of the above are also included within the scope of non-transitory computer-readable and processor-readable media. Additionally, the operation of a method or algorithm may exist as one of the codes and / or instructions, or any combination or set thereof, on a non-transitory processor-readable storage medium and / or computer-readable storage medium that can be incorporated into a computer program product.

[0223] The foregoing description of the disclosed embodiments is provided to enable those skilled in the art to make or use the claims. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of the claims. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the following claims and the principles and novel features disclosed herein.

Claims

1. A method for allocating wireless resources for receiving multicast services, executed by a processor of a wireless device, comprising: Receive an indication for two or more downlink DL frequency resources for multicast communication from a base station, wherein the indication for the two or more DL frequency resources for multicast communication is used to indicate a one-to-one mapping between each of the two or more DL frequency resources for multicast communication and a corresponding DL BWP configured within a carrier bandwidth, wherein the two or more DL frequency resources for multicast communication include a plurality of sets of two or more DL frequency resources for multicast communication, and each of the plurality of sets is associated with a different service; At least in part based on the active DL bandwidth portion (BWP), a DL frequency resource for multicast communication is selected from two or more DL frequency resources used for multicast communication from the base station to monitor multicast data transmission from the base station; and Multicast data transmission from the base station is monitored in the selected DL frequency resources used for multicast communication.

2. The method according to claim 1, wherein, Selecting the DL frequency resources for multicast communication from two or more DL frequency resources for multicast communication from the base station, at least in part based on the active DL BWP, to monitor multicast data transmission from the base station includes: Determine the activity DL BWP; Determine the digital scheme for the activity DL BWP; and Select from the two or more DL frequency resources used for multicast communication from the base station the DL frequency resources that are fully included in the active DL BWP and / or have the same digital scheme as the active DL BWP for multicast communication to monitor multicast data transmission from the base station.

3. The method according to claim 1, wherein, Receiving the indication for the two or more DL frequency resources for multicast communication from the base station includes: receiving the indication for the two or more DL frequency resources for multicast communication from the base station in a unicast Radio Resource Control (RRC) message.

4. The method of claim 1, wherein the two or more DL frequency resources for multicast communication from the base station comprise: At least a first DL frequency resource associated with the multicast control channel for multicast communication from the base station; as well as At least a second DL frequency resource associated with the multicast service channel for multicast communication from the base station.

5. The method according to claim 1, further comprising: Determine the feedback configuration for the activity DL BWP; as well as Multicast feedback data is sent to the base station according to the feedback configuration used for the active DL BWP.

6. The method according to claim 1, further comprising: Receive indications for two or more uplink UL frequency resources used for multicast communication; as well as Multicast feedback data is sent to the base station using at least one of the two or more UL frequency resources used for multicast communication.

7. The method according to claim 6, wherein, One of the two or more UL frequency resources used for multicast is selected, at least in part, based on the active DL BWP, for use when sending the multicast feedback data to the base station.

8. The method according to claim 1, wherein, Selecting a DL frequency resource for multicast communication from two or more DL frequency resources for multicast communication from the base station, at least in part based on the active DL BWP, to monitor multicast data transmission from the base station includes: selecting a DL frequency resource for multicast communication from two or more DL frequency resources for multicast communication from the base station, at least in part based on the active DL BWP and the selection of one of the different services, to monitor multicast data transmission from the base station.

9. The method according to claim 1, wherein, Each of the two or more DL frequency resources used for multicast communication has a different configuration, and the different configurations are different search space sets or different physical channel configurations.

10. A method for allocating radio resources to support multicast services, executed by a processor of a base station, comprising: Within the carrier bandwidth, two or more downlink DL frequency resources are configured for multicast communication such that there is a one-to-one mapping between each DL frequency resource used for multicast communication and each DL BWP in the two or more DL bandwidth portions BWP configured within the carrier bandwidth. Instructions are sent to one or more wireless devices communicating with the base station regarding two or more DL frequency resources for multicast communication, wherein more than one of the two or more DL frequency resources is configured to be selected by each of the one or more wireless devices for multicast communication at least in part based on an active DL BWP, wherein the instructions for the two or more DL frequency resources for multicast communication are used to indicate the one-to-one mapping between each of the two or more DL frequency resources for multicast communication and a corresponding DL BWP configured within the carrier bandwidth, wherein the two or more DL frequency resources for multicast communication comprise a plurality of sets of two or more DL frequency resources for multicast communication, and each of the plurality of sets is associated with a different service; and Multicast data transmission is scheduled in at least one of the two or more DL frequency resources used for multicast communication.

11. The method according to claim 10, wherein, Configuring the two or more DL frequency resources for multicast communication within the carrier bandwidth includes: Determine two or more DL BWPs configured within the carrier bandwidth; and Configure DL frequency resources for multicast communication for each of the two or more DL BWPs configured within the carrier bandwidth.

12. The method according to claim 10, wherein, Sending the indication for the two or more DL frequency resources for multicast communication to the one or more wireless devices communicating with the base station includes: sending the indication for the two or more DL frequency resources for multicast communication to the one or more wireless devices communicating with the base station in a Radio Resource Control (RRC) message.

13. The method of claim 10, further comprising: Configure an uplink UL frequency resource for multicast communication for each of the two or more DL frequency resources used for multicast communication; Send an indication of the UL frequency resources for multicast communication to the one or more wireless devices communicating with the base station; as well as Multicast feedback data is received from at least one of the one or more wireless devices in the UL frequency resources used for multicast communication.

14. The method of claim 10, wherein, The two or more DL frequency resources used for multicast communication are two or more control resource sets (CORESET) used for multicast communication.

15. The method according to claim 10, wherein, Each of the two or more DL frequency resources used for multicast communication has a different configuration, which is a different search space set or a different physical channel configuration.

16. A wireless device, comprising: A processor configured to have processor-executable instructions for performing operations including: Receive an indication for two or more downlink DL frequency resources for multicast communication from a base station, wherein the indication for the two or more DL frequency resources for multicast communication is used to indicate a one-to-one mapping between each of the two or more DL frequency resources for multicast communication and a corresponding DL BWP configured within a carrier bandwidth, wherein the two or more DL frequency resources for multicast communication include a plurality of sets of two or more DL frequency resources for multicast communication, and each of the plurality of sets is associated with a different service; At least in part based on the active DL bandwidth portion (BWP), a DL frequency resource for multicast communication is selected from two or more DL frequency resources used for multicast communication from the base station to monitor multicast data transmission from the base station; and Multicast data transmission from the base station is monitored in the selected DL frequency resources used for multicast communication.

17. The wireless device according to claim 16, wherein, The processor is configured to have processor-executable instructions for performing operations such that: selecting, at least in part, the DL frequency resources for multicast communication from the two or more DL frequency resources for multicast communication from the base station to monitor multicast data transmission from the base station, based on the active DL BWP, includes: Determine the activity DL BWP; Determine the digital scheme for the activity DL BWP; and Select from the two or more DL frequency resources used for multicast communication from the base station the DL frequency resources that are fully included in the active DL BWP and / or have the same digital scheme as the active DL BWP for multicast communication to monitor multicast data transmission from the base station.

18. The wireless device according to claim 16, wherein, The processor is configured to have processor-executable instructions for performing operations such that receiving the indication for the two or more DL frequency resources for multicast communication from the base station includes: receiving the indication for the two or more DL frequency resources for multicast communication from the base station in a unicast Radio Resource Control (RRC) message.

19. The wireless device according to claim 16, wherein, The processor is configured to have processor-executable instructions for performing operations to cause the two or more DL frequency resources for multicast communication from the base station to include: At least a first DL frequency resource associated with the multicast control channel for multicast communication from the base station; and At least a second DL frequency resource associated with the multicast service channel for multicast communication from the base station.

20. The wireless device according to claim 16, wherein, The processor is configured to have processor-executable instructions for performing operations that also include: Determine the feedback configuration for the activity DL BWP; and Multicast feedback data is sent to the base station according to the feedback configuration used for the active DL BWP.

21. The wireless device according to claim 16, wherein, The processor is configured to have processor-executable instructions for performing operations that also include: Receive indications for two or more uplink UL frequency resources used for multicast communication; and Multicast feedback data is sent to the base station using at least one of the two or more UL frequency resources used for multicast communication.

22. A base station, comprising: A processor configured to have processor-executable instructions for performing operations including: Within the carrier bandwidth, two or more downlink DL frequency resources are configured for multicast communication such that there is a one-to-one mapping between each DL frequency resource used for multicast communication and each DL BWP in the two or more DL bandwidth portions BWP configured within the carrier bandwidth. Instructions are sent to one or more wireless devices communicating with the base station regarding two or more DL frequency resources for multicast communication, wherein more than one of the two or more DL frequency resources is configured to be selected by each of the one or more wireless devices for multicast communication at least in part based on an active DL BWP, wherein the instructions for the two or more DL frequency resources for multicast communication are used to indicate the one-to-one mapping between each of the two or more DL frequency resources for multicast communication and a corresponding DL BWP configured within the carrier bandwidth, wherein the two or more DL frequency resources for multicast communication comprise a plurality of sets of two or more DL frequency resources for multicast communication, and each of the plurality of sets is associated with a different service; and Multicast data transmission is scheduled in at least one of the two or more DL frequency resources used for multicast communication.

23. The base station according to claim 22, wherein, The processor is configured to have processor-executable instructions for performing operations to configure the two or more DL frequency resources for multicast communication within the carrier bandwidth, including: Determine two or more DL BWPs configured within the carrier bandwidth; and Configure DL frequency resources for multicast communication for each of the two or more DL BWPs configured within the carrier bandwidth.

24. The base station according to claim 22, wherein, The processor is configured to have processor-executable instructions for performing operations to send the indication for the two or more DL frequency resources for multicast communication to the one or more wireless devices communicating with the base station, including: sending the indication for the two or more DL frequency resources for multicast communication to the one or more wireless devices communicating with the base station in a Radio Resource Control (RRC) message.

25. The base station according to claim 22, wherein, The processor is configured to have processor-executable instructions for performing operations that also include: Configure an uplink UL frequency resource for multicast communication for each of the two or more DL frequency resources used for multicast communication; Send an indication of the UL frequency resources for multicast communication to the one or more wireless devices communicating with the base station; as well as Multicast feedback data is received from at least one of the one or more wireless devices in the UL frequency resources used for multicast communication.

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