Techniques for supporting multicast broadcast channel bandwidth

Abstract

Various aspects described herein relate to determining a multicast broadcast (MB) bandwidth size for receiving a MB service that is different from each bandwidth size in the set of a plurality of configurable bandwidth sizes for receiving a unicast service.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATION(S)

[0002] This patent application claims priority to Provisional Patent Application No. 62 / 976,828, filed on February 14, 2020, and entitled “Techniques for Supporting Multicast Broadcast Channel Bandwidths,” and U.S. Patent Application No. 17 / 166,869, filed on February 3, 2021, and entitled “Techniques for Supporting Multicast Broadcast Channel Bandwidths,” which are assigned to their assignees and are expressly incorporated herein by reference for all purposes. Technical Field

[0003] The present disclosure relates generally to communication systems and, more particularly, to providing multicast broadcast services. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcast. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of the continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (such as, with the Internet of Things (IoT)) and other requirements. 5GNR includes services associated with enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable low latency communication (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard.

[0006] Some wireless communication technologies support transmission of broadcast services to various devices. However, in some areas, it is possible that the channelization of the broadcast frequency band(s) used for broadcast services may be incompatible with the bandwidth defined in the wireless communication technology desired for delivering the broadcast services. Summary of the invention

[0007] A brief summary of one or more aspects is given below to provide a basic understanding of such aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be presented later.

[0008] In one aspect of the present disclosure, a method, a computer-readable medium, and an apparatus are provided. In one aspect, the method includes: receiving, by a user equipment (UE), a configuration for a first set of a plurality of configurable bandwidth sizes for receiving a unicast service, determining a MB bandwidth size for receiving a multicast broadcast (MB) service, the MB bandwidth size being different from each bandwidth size in the set of the plurality of configurable bandwidth sizes for receiving the unicast service, and receiving the MB service on a MB bandwidth in the MB bandwidth size.

[0009] In another aspect, a method includes transmitting, in a cell, a configuration for a first set of multiple configurable bandwidth sizes for receiving a unicast service, determining an MB bandwidth size for transmitting an MB service that is different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving a unicast service, transmitting an indication of the MB bandwidth size, and transmitting the MB service on the MB bandwidth size in the cell.

[0010] In yet another aspect, an apparatus for wireless communication is provided, the apparatus comprising: a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the memory and the transceiver. The one or more processors are configured to: receive a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services, determine an MB bandwidth size for receiving MB services, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services, and receive MB services at the MB bandwidth size.

[0011] In another aspect, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the memory and the transceiver. The one or more processors are configured to: transmit, in a cell, a configuration for a first set of a plurality of configurable bandwidth sizes for receiving a unicast service, determine an MB bandwidth size for transmitting an MB service, the MB bandwidth size being different from each bandwidth size in the set of a plurality of configurable bandwidth sizes for receiving a unicast service, transmit an indication of the MB bandwidth size, and transmit the MB service on the MB bandwidth size in the cell.

[0012] In another aspect, an apparatus for wireless communication is provided, comprising: means for receiving a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services, means for determining an MB bandwidth size for receiving MB services, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services, and means for receiving MB services on the MB bandwidth size.

[0013] On the other hand, an apparatus for wireless communication is provided, the apparatus comprising: means for transmitting, in a cellular cell, a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services, means for determining an MB bandwidth size for transmitting MB services, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services, means for transmitting an indication of the MB bandwidth size, and means for transmitting the MB service on the MB bandwidth size in the cellular cell.

[0014] To achieve the foregoing and related ends, the one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and drawings set forth in detail some illustrative features of the one or more aspects. However, these features are merely indicative of several of the various ways in which the principles of the various aspects may be employed, and this description is intended to cover all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0016] Figure 2A , 2B , 2C, and 2D are diagrams illustrating examples of a first 5G / NR frame, a DL channel within a 5G / NR subframe, a second 5G / NR frame, and a UL channel within a 5G / NR subframe, respectively.

[0017] Figure 3is a diagram illustrating an example of a base station and a user equipment (UE) in an access network.

[0018] Figure 4 is a flow chart of an example of a method 400 for determining an MB bandwidth size for receiving communications related to an MB service according to some aspects of the present disclosure.

[0019] Figure 5 is a flow chart of an example of a method 500 for configuring an MB bandwidth size for receiving communications related to MB services according to some aspects of the present disclosure.

[0020] Figure 6 Illustrated is an example of a system 600 for determining MB bandwidth size for receiving MB services in accordance with some aspects of the present disclosure.

[0021] Figure 7 Illustrated is an example of a system 700 for determining an MB bandwidth size for receiving MB services based on an initial system bandwidth in accordance with some aspects of the present disclosure.

[0022] Figure 8

[0066] Illustrated is an example of a system 800 for determining an MB bandwidth size for receiving MB services based on a set of multiple CCs in accordance with some aspects of the present disclosure.

[0023] Fig. 9 Illustrated is an example of a system 900 for reporting MB bandwidth size for receiving MB services in accordance with some aspects of the present disclosure.

[0024] Fig.10 is a conceptual data flow diagram illustrating the flow of data between different components in an example device, such as a UE, according to some aspects of the present disclosure.

[0025] Fig.11 is a diagram illustrating an example of a hardware implementation for a device (such as a UE) employing a processing system according to some aspects of the present disclosure.

[0026] Fig.12 is a conceptual data flow diagram illustrating the flow of data between different components in an example device, such as a base station, in accordance with some aspects of the present disclosure.

[0027] Fig.13 is a diagram illustrating an example of a hardware implementation for a device, such as a base station, employing a processing system according to some aspects of the present disclosure. DETAILED DESCRIPTION

[0028] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. This detailed description includes specific details to provide a thorough understanding of the various concepts. However, it will be apparent to one of ordinary skill in the art that these concepts may be practiced without these specific details. In some instances, structures and components are shown in block diagram form in order to avoid watering down such concepts.

[0029] Various implementations generally relate to providing multicast broadcast services. Some implementations more specifically relate to providing MB services using one or more system bandwidths defined for a desired radio access technology on which a broadcast multicast (MB) service is provided. However, the bandwidth size of the system bandwidth supported by the desired radio access technology may not include or match the bandwidth size defined by the specific channelization of the MB service. For example, the bandwidth size of the channel permitted for MB services may include 6, 7, or 8 megahertz (MHz), while the system bandwidth size defined for the desired radio access technology (e.g., fifth generation (5G) new radio (NR), long term evolution (LTE)) may include 1.4, 3, 5, 10, 15, and 20 MHz, etc., but does not include 6, 7, or 8 MHz (or otherwise does not include the bandwidth size defined for MB services). Various aspects described herein relate to supporting MB services on the radio access technology in such scenarios where the bandwidth size defined for the MB service does not match the supported bandwidth size of the radio access technology.

[0030] In some aspects, a new system bandwidth or bandwidth size may be defined and supported in the radio access technology for providing MB services. In some implementations, a node (e.g., a base station) may indicate the new bandwidth size in a master information block (MIB), for example, by using an originally unused value of an existing field or information element (IE) or by defining or using a new or different field or IE to indicate the new bandwidth size for MB services, etc. In some implementations, each node communicating in a wireless network may initially select, indicate, or otherwise utilize a bandwidth size that is larger or smaller than the bandwidth size defined for MB services supported by the radio access technology for the radio access technology. In some such implementations, a node (e.g., a base station) may then signal the bandwidth size for MB services ("MB bandwidth" or "MB bandwidth size") to a UE that desires to receive MB services. For example, the MB bandwidth size may be signaled for a multicast broadcast single frequency network (MBSFN) area in a system information block (SIB) or in a broadcast channel information list, etc. A node (e.g., a UE) that receives the signaling may then utilize the MB bandwidth size to obtain MB services. In some implementations, each node may combine multiple component carriers (CCs) of a radio access technology to achieve an MB bandwidth size. For example, each CC may have an individual associated bandwidth size that is each smaller than the MB bandwidth size, and when the CCs are combined together, they may collectively achieve (or constitute) a resulting aggregate bandwidth size that at least matches (or exceeds) the MB bandwidth size used to convey the MB service.

[0031] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0032] As an example, an element, or any part of an element, or any combination of elements may be implemented as a "processing system" including one or more processors. Examples of processors include: microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on chip (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gating logic, discrete hardware circuits, and other suitable hardware configured to perform various functionalities described throughout this disclosure. One or more processors in a processing system may execute software. Software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether it is described in software, firmware, middleware, microcode, hardware description languages, or other terms.

[0033] Accordingly, in one or more examples, the described functions may be implemented in hardware, software, or any combination thereof. If implemented in software, these functions may be stored or encoded on a computer-readable medium as one or more instructions or codes. Computer-readable media include computer storage media. Storage media may be any available medium that can be accessed by a computer. As an example and not limitation, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, a combination of computer-readable media of the above types, or any other medium that may be used to store computer-executable code in the form of instructions or data structures that can be accessed by a computer.

[0034] Figure 1 1 is a diagram illustrating an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) includes a base station 102, a UE 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)). The base station 102 may include a macro cell (a high-power cellular base station) or a small cell (a low-power cellular base station). A macro cell includes a base station. A small cell includes a femto cell, a pico cell, and a micro cell.

[0035] The base station 102 configured for 4G LTE (collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). The base station 102 configured for 5G NR (collectively referred to as the Next Generation RAN (NG-RAN)) can interface with the core network 190 via a second backhaul link 184. Among other functions, the base station 102 can also perform one or more of the following functions: delivery of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of alert messages. The base stations 102 may communicate with each other directly or indirectly (eg, through the EPC 160 or the core network 190) over a third backhaul link 134 (eg, an X2 interface). The third backhaul link 134 may be wired or wireless.

[0036] Base stations 102 may communicate wirelessly with UEs 104. Each base station 102 may provide communication coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102a may have a coverage area 110a that overlaps with the coverage area 110 of one or more macro base stations 102. A network including both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved B node (eNB) (HeNB), which may provide services to a restricted group referred to as a closed subscriber group (CSG). A communication link 120 between a base station 102 and a UE 104 may include an uplink (UL) (also referred to as a reverse link) transmission from the UE 104 to the base station 102 or a downlink (DL) (also referred to as a forward link) transmission from the base station 102 to the UE 104. The communication link 120 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, or transmit diversity. These communication links may be through one or more carriers. For each carrier allocated in the carrier aggregation for a total of up to Yx MHz (x component carriers) for transmission in each direction, the base station 102 / UE 104 can use a spectrum with a bandwidth size of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.). These carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).

[0037] Some UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). The D2D communication may be through a variety of wireless D2D communication systems, such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.

[0038] The wireless communication system may further include a Wi-Fi access point (AP) 150 in communication with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available prior to communication.

[0039] The small cell 102a may operate in a licensed or unlicensed spectrum. When operating in an unlicensed spectrum, the small cell 102a may employ NR and use the same 5 GHz unlicensed spectrum as that used by the Wi-Fi AP 150. The small cell 102a employing NR in the unlicensed spectrum may boost the coverage of the access network or increase the capacity of the access network.

[0040] Whether a small cell 102a or a large cell (e.g., a macro base station), the base station 102 may include and / or be referred to as an eNB, a gNodeB (gNB), or another type of base station. Some base stations (such as gNB 180) may operate in traditional sub-6 GHz spectrum, millimeter wave (mmW) frequencies, or near mmW frequencies to communicate with UE 104. When gNB 180 operates in mmW or near mmW frequencies, gNB 180 may be referred to as a mmW base station. Extremely high frequency (EHF) is part of the RF in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 mm and 10 mm. The radio waves in this band may be referred to as millimeter waves. Near mmW can be extended down to 3 GHz frequencies with a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz, which is also referred to as centimeter waves. Communications using mmW / near mmW radio frequency bands (e.g., 3 GHz–300 GHz) have extremely high path loss and short range. The mmW base station 180 may utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short range. The base station 180 and the UE 104 may each include multiple antennas, such as antenna elements, antenna panels, or antenna arrays to facilitate beamforming.

[0041] The base station 180 may transmit beamformed signals to the UE 104 in one or more transmit directions 182a. The UE 104 may receive beamformed signals from the base station 180 in one or more receive directions 182b. The UE 104 may also transmit beamformed signals to the base station 180 in one or more transmit directions. The base station 180 may receive beamformed signals from the UE 104 in one or more receive directions. The base station 180 / UE 104 may perform beam training to determine the best receive direction and transmit direction for each of the base station 180 / UE 104. The transmit direction and receive direction of the base station 180 may be the same or may be different. The transmit direction and receive direction of the UE 104 may be the same or may be different.

[0042] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may be in communication with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. In general, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are delivered through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, or other IP services. The BM-SC 170 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS Gateway 168 may be used to distribute MBMS traffic to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area broadcasting a specific service, and may be responsible for session management (start / stop) and for collecting eMBMS related charging information.

[0043] The core network 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. AMF 192 may be in communication with a unified data management (UDM) 196. AMF 192 is a control node that handles signaling between UE 104 and the core network 190. In general, AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are delivered through UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 is connected to IP service 197. IP service 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, or other IP services.

[0044] A base station may include or be referred to as a gNB, a Node B, an eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmission reception point (TRP), or some other suitable term. The base station 102 provides an access point to the EPC 160 or the core network 190 for the UE 104. Examples of UE 104 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a tablet device, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a health care device, an implant, a sensor / actuator, a display, or any other similar functional device. Some UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, ovens, vehicles, heart monitors, etc.). UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0045] Reference again Figure 1In some aspects, the UE 104 may include a communication component 198 configured to: receive a multicast broadcast (MB) service from the base station 102; determine an MB bandwidth size for receiving communications related to the MB service, which may be determined based on a configuration of multiple bandwidth sizes defined for a radio access technology (e.g., NR, LTE, etc.), one or more related parameters, or otherwise; or other functionality described herein. In some aspects, the base station 180 may include a configuration component 199 configured to: transmit the MB service to one or more UEs 104; indicate a configuration of multiple bandwidth sizes defined for a radio access technology or indicate one or more parameters for determining the MB bandwidth size; or other functionality described herein. Although the following description may be described with respect to 5G NR and related features, the concepts described herein may be applicable to other fields or wireless communication technologies, such as LTE, LTE-A, CDMA, GSM, etc.

[0046] Figure 2A 200 is a diagram illustrating an example of a first subframe within a 5G / NR frame structure. Figure 2B FIG230 is a diagram illustrating an example of DL channels within a 5G / NR subframe. Figure 2C 250 is a diagram illustrating an example of a second subframe within a 5G / NR frame structure. Figure 2D 280 is a diagram illustrating an example of an UL channel within a 5G / NR subframe. The 5G / NR frame structure may be FDD, where for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to either DL or UL, or TDD, where for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to both DL and UL. Figure 2A , 2C In the example provided, the 5G / NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (mostly DL) and subframe 3 is configured with slot format 34 (mostly UL), where D is DL, U is UL, and X is for flexible use between DL / UL. Although subframes 3 and 4 are shown as having slot formats 34 and 28, respectively, any particular subframe may be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are full DL and full UL, respectively. Other slot formats 2-61 include a mixture of DL, UL, and flexible symbols. The UE is configured with a slot format (dynamically configured by DL control information (DCI) or semi-statically / statically configured by radio resource control (RRC) signaling) through the received slot format indicator (SFI). Note that the description presented herein also applies to a 5G / NR frame structure for TDD.

[0047] Other wireless communication technologies may have different frame structures or different channels. A frame (10ms) may be divided into 10 equally sized subframes (1ms). Each subframe may include one or more time slots. A subframe may also include mini-slots, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, and for time slot configuration 1, each time slot may include 7 symbols. The symbols on the DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols. The symbols on the UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (also known as single carrier frequency division multiple access (SC-FDMA) symbols) (for power-limited scenarios; limited to single stream transmission). The number of time slots within a subframe is based on the time slot configuration and parameter design. For slot configuration 0, different parameter designs μ of 0 to 5 allow 1, 2, 4, 8, 16, and 32 slots per subframe, respectively. For slot configuration 1, different parameter designs 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Accordingly, for slot configuration 0 and parameter design μ, there are 14 symbols per slot and 2 per subframe. μ time slots. The subcarrier spacing and symbol length / duration depend on parameter design. The subcarrier spacing can be equal to where μ is parameter design 0 to 5. Thus, parameter design μ=0 has a subcarrier spacing of 15 kHz, while parameter design μ=5 has a subcarrier spacing of 480 kHz. The symbol length / duration is inversely related to the subcarrier spacing. Figure 2A-2D An example of slot configuration 0 with 14 symbols per slot and parameter design μ=0 is provided, with 1 slot per subframe. The subcarrier spacing is 15 kHz and the symbol duration is about 66.7 μs.

[0048] A resource grid may be used to represent the frame structure. Each slot includes a resource block (RB) (also called a physical RB (PRB)) extending over 12 consecutive subcarriers. The resource grid is divided into a number of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0049] like Figure 2A As illustrated in FIG. 1 , some REs carry reference (pilot) signals (RS) for UEs. RSs may include demodulation RSs (DM-RSs) for channel estimation at the UE (indicated as R for one particular configuration). x , where 100x is the port number, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS). RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0050] Figure 2B Examples of various DL channels within a subframe of a frame are illustrated. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs), each CCE including 9 RE groups (REGs), each REG including 4 consecutive REs in an OFDM symbol. The primary synchronization signal (PSS) may be within symbol 2 of a particular subframe of a frame. The PSS is used by the UE 104 to determine the subframe / symbol timing and the physical layer identity. The secondary synchronization signal (SSS) may be within symbol 4 of a particular subframe of a frame. The SSS is used by the UE to determine the physical layer cell identity group number and the radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE may determine the physical cell identifier (PCI). Based on the PCI, the UE may determine the location of the aforementioned DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) may be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides the number of RBs in the system bandwidth, as well as the system frame number (SFN). The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH (such as System Information Blocks (SIBs)), and paging messages.

[0051] like Figure 2C As illustrated in , some REs carry DM-RSs for channel estimation at the base station (indicated as R for one particular configuration, but other DM-RS configurations are possible). The UE may transmit DM-RSs for the physical uplink control channel (PUCCH) and DM-RSs for the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be transmitted in the first or first two symbols of the PUSCH. The PUCCH DM-RS may be transmitted in different configurations depending on whether a short PUCCH or a long PUCCH is transmitted and on the specific PUCCH format used. Although not shown, the UE may transmit a sounding reference signal (SRS). The SRS may be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0052] Figure 2D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a location as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), or UCI.

[0053] Figure 33 is a block diagram of a base station 310 in communication with a UE 350 in an access network. In the DL, IP packets from the EPC 160 may be provided to a controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functionality. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a media access control (MAC) layer. The controller / processor 375 provides RRC layer functionality associated with broadcasting of system information (such as MIB, SIB), RRC connection control (such as RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration of UE measurement reports; PDCP layer functionality associated with header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with delivery of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0054] The transmit (TX) processor 316 and the receive (RX) processor 370 implement layer 1 functionality associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error detection on the transport channel, forward error correction (FEC) coding / decoding of the transport channel, interleaving, rate matching, mapping onto the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 316 handles the mapping to the signal constellation based on various modulation schemes such as binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The decoded and modulated symbols may then be split into parallel streams. Each stream may then be mapped to an OFDM subcarrier, multiplexed with a reference signal (such as a pilot) in the time or frequency domain, and then combined together using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially precoded to produce multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation schemes and for spatial processing. The channel estimates may be derived from a reference signal or channel condition feedback transmitted by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0055] At the UE 350, each receiver 354RX receives a signal through its corresponding antenna 352. Each receiver 354RX recovers the information modulated onto the RF carrier and provides the information to a receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functionality associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial stream destined for the UE 350. If there are multiple spatial streams destined for the UE 350, they can be combined into a single OFDM symbol stream by the RX processor 356. The RX processor 356 then transforms the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier and the reference signal are recovered and demodulated by determining the signal constellation point most likely transmitted by the base station 310. These soft decisions can be based on the channel estimates calculated by the channel estimator 358. These soft decisions are then decoded and deinterleaved to recover the data and control signals originally transmitted on the physical channel by the base station 310. These data and control signals are then provided to the controller / processor 359 which implements layer 3 and layer 2 functionality.

[0056] The controller / processor 359 may be associated with a memory 360 that stores program codes and data. The memory 360 may be referred to as a computer readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport channels and logical channels, packet reassembly, cipher interpretation, header decompression, and control signal processing to recover IP packets from the EPC 160. The controller / processor 359 is also responsible for error detection using an ACK or NACK protocol to support HARQ operations.

[0057] Similar to the functionality described in conjunction with DL transmissions performed by the base station 310, the controller / processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functionality associated with header compression / decompression, and security (encryption, decryption, integrity protection, integrity verification); RLC layer functionality associated with delivery of upper layer PDUs, error correction through ARQ, concatenation, segmentation, and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing MAC SDUs onto TBs, demultiplexing MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0058] Channel estimates derived by a channel estimator 358 from a reference signal or feedback transmitted by the base station 310 may be used by a TX processor 368 to select the appropriate coding and modulation schemes, and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via separate transmitters 354TX. Each transmitter 354TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0059] UL transmissions are processed at the base station 310 in a manner similar to that described in conjunction with the receiver functionality at the UE 350. Each receiver 318RX receives a signal through its respective antenna 320. Each receiver 318RX recovers information modulated onto an RF carrier and provides the information to a RX processor 370.

[0060] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport channels and logical channels, packet reassembly, cipher decoding, header decompression, control signal processing to recover IP packets from the UE 350. The IP packets from the controller / processor 375 may be provided to the EPC 160. The controller / processor 375 is also responsible for error detection using an ACK or NACK protocol to support HARQ operations.

[0061] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform operations related to Figure 1 The communication component 198 combines various aspects.

[0062] At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform operations related to Figure 1 The configuration component 199 combines various aspects.

[0063] Some wireless communication technologies (such as LTE) support dedicated broadcast carriers. For example, in LTE, the carrier can be downlink-only or multicast broadcast multicast service (MBMS)-only (e.g., unicast is not supported). This is similar in spirit to MB standards such as DVB-T, ATSC. The content can usually be free, where the recipient may not have to register with the network or have credentials (such as subscriber identity module (SIM) credentials) for receiving services (e.g., TV services, car or vehicle-related broadcast information). In many countries in the world, the channelization of broadcast bands for MB services is in units of bandwidth sizes that are not compatible with LTE bandwidths. For example, LTE supports bandwidth sizes of 1.4, 3, 5, 10, 15, 20 megahertz (MHz), which corresponds to 6, 15, 25, 50, 75 and 100 physical resource blocks (PRBs). For example, in Europe, the channelization for MB service channels can adopt bandwidth chunks of 8, 7, 6 MHz. For deployment in some regions and some frequency bands, various aspects described herein relate to supporting these MB bandwidth sizes in radio access technologies (e.g., NR, LTE).

[0064] Figure 4 4 is a flow chart of an example of a method 400 for determining an MB bandwidth size for receiving communications related to MB services according to some aspects of the present disclosure. The method 400 may be performed by a UE (such as UE 104; device 1002; processing system 1114, which may include memory 360 and may be the entire UE 104 or a component of the UE 104 (such as TX processor 368, RX processor 356, or controller / processor 359)).

[0065] In method 400, at block 402, a device (e.g., UE 104) may receive a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services. In one aspect, the communication component 198, for example, in combination with one or more of the TX processor 368, the RX processor 356 or the controller / processor 359, the memory 360, and the receiver 354RX, may receive (e.g., from the base station 102) a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services. For example, a radio access technology (such as NR, LTE, other cellular communication technologies) may define multiple configurable bandwidth sizes for receiving unicast services or other services that may not specifically include MB services, and in one example, the multiple configurable bandwidth sizes may correspond to the radio access technology (e.g., for unicast or other services defined by the radio access technology). For example, the configurable bandwidth size may include multiple bandwidth sizes (in terms of the number of resource blocks that may be associated with a frequency range) that may be used to configure the system bandwidth of the CC of the radio access technology.

[0066] For example, the communication component 198 may receive a configuration for a CC in a MIB having a downlink bandwidth IE indicating a downlink bandwidth or bandwidth size for the CC. In one example, the IE may be defined to indicate one of a set of configurable bandwidth sizes defined for a radio access technology, such as 6 PRBs, 15 PRBs, 25 PRBs, 50 PRBs, 75 PRBs, and 100 PRBs in NR / LTE (corresponding to 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz, respectively). In a specific example, in NR / LTE, a base station may specify or fix the system bandwidth for both MBMS dedicated and normal carriers in the MIB. The MIB format for each may be separate, but both may include an IE indicating a downlink bandwidth for the CC, as shown in the following example. An example of a MIB for an MBMS dedicated carrier may have a format similar to the following:

[0067] MasterInformationBlock-MBMS-r14::=SEQUENCE{

[0068] dl-Bandwidth-MBMS-r14 ENUMERATED{n6,n15,n25,n50,n75,n100},

[0069] systemFrameNumber-r14 BIT STRING(SIZE(6)),

[0070] additionalNonMBSFNSubframes-r14 INTEGER(0..3),

[0071] spare BIT STRING(SIZE(13))

[0072] }

[0073] An example of a MIB for a normal carrier may have a format similar to the following:

[0074] MasterInformationBlock::=SEQUENCE{

[0075] dl-Bandwidth ENUMERATED{n6,n15,n25,n50,n75,n100},

[0076] phich-Config PHICH-Config,

[0077] systemFrameNumber BIT STRING(SIZE(8)),

[0078] schedulingInfoSIB1-BR-r13 SIB1-BR-r13,

[0079] systemInfoUnchanged-BR-r15 BOOLEAN,

[0080] spare BIT STRING(SIZE(4))

[0081] }

[0082] In one example, MBMS dedicated and normal (or hybrid) carriers may use different scrambling for the primary broadcast channel (PBCH), so that the UE can try two hypotheses when decoding (and then interpreting the MIB accordingly). In this regard, in one example, the UE 104 can determine the downlink bandwidth for the CC to be one of the configurable bandwidth sizes in the configuration.

[0083] In method 400, at block 404, a device (e.g., UE 104) may determine a MB bandwidth size for receiving MB services, wherein the MB bandwidth size is different from each bandwidth size in a set of multiple configurable bandwidth sizes for receiving unicast services. In one aspect, communication component 198, for example, in conjunction with one or more of TX processor 368, RX processor 356, or controller / processor 359, memory 360, may determine a MB bandwidth size for receiving MB services, which is outside the set of multiple configurable bandwidth sizes for receiving unicast services (e.g., different from each bandwidth size in the set). For example, the MB bandwidth size may correspond to a channelization of a broadcast band for MB services, as described, which in some examples may be defined as a bandwidth size of 8, 7, or 6 MHz or otherwise defined as a bandwidth size outside the set of bandwidth sizes defined as configurable bandwidth sizes for radio access technologies (e.g., for NR / LTE, not in the set of 1.4, 3, 5, 10, 15, 20 MHz). Various implementations are described herein that may be provided in conjunction with or as an alternative to one another for determining an MB bandwidth size for providing MB services using a radio access technology based on or otherwise in accordance with one or more of a plurality of configurable bandwidth sizes for a radio access technology.

[0084] In one example, the MIB indicating the downlink bandwidth for the CC may also be adapted to indicate the MB bandwidth size, and in this regard the communication component 198 may determine the MB bandwidth size based on the MIB. In a specific example, the MIB as defined may have two alternate values ​​that may be used for indication in the enumeration for the downlink bandwidth IE (e.g., in addition to indicating 6 PRBs, 15 PRBs, 25 PRBs, 50 PRBs, 75 PRBs, and 100 PRBs). In one example, the base station 102 (or other network components, the base station 102 or other network components are more generally referred to as "networks" herein) may use one or more alternate values ​​in the enumeration to indicate one or more MB bandwidth sizes, which in one example may be for a given CC. In a specific example, if the number of new channel bandwidth sizes for MBs is 2 or less, the dl-bandwidth-MBMS-r14 field (which has two alternate values) may be used to introduce the new channel bandwidth size. For example, 30 and 40 PRBs may be introduced, corresponding to approximately 6 and 8 MHz, respectively. In a specific example, the MIB may have a format similar to the following:

[0085] MasterInformationBlock-MBMS-r14::=SEQUENCE{

[0086] dl-Bandwidth-MBMS-r14 ENUMERATED{n6,n15,n25,n50,n75,n100,n30,n40},

[0087] systemFrameNumber-r14 BIT STRING(SIZE(6)),

[0088] additionalNonMBSFNSubframes-r14 INTEGER(0..3),

[0089] spare BIT STRING(SIZE(13))

[0090] }

[0091] Where "n30" and "n40" occupy alternate values. In this example, the communication component 198 can receive the MIB, and in the event that the downlink bandwidth IE indicates one of the alternate values ​​for the downlink bandwidth, the communication component 198 can determine the associated MB bandwidth size for the CC (e.g., in the above example, as 30 or 40 PRBs, or correspondingly 6 or 8 MHz). For example, a legacy UE may not understand these values ​​and, therefore, may not camp on the cell or attempt to access the services of the cell. In this regard, potential incompatibility issues can be avoided. Additionally, the set of possible bandwidth sizes for a dedicated MBMS carrier may be different from the set of possible bandwidths for a normal LTE / NR carrier (e.g., the values ​​"n30" and "n40" only exist in the MIB on a dedicated MBMS carrier).

[0092] In another specific example, the MIB may be adapted so that the network may use one of the alternate values ​​in the enumeration to indicate the extended MIB. The extended MIB may have another IE that defines a new enumeration of one or more MB bandwidth sizes. This may allow support for more than two possible MB bandwidth sizes, where the MIB may indicate the alternate value and then indicate the MB bandwidth size in the new enumeration. In this example, the communication component 198 may determine the MB bandwidth size in the following manner: based on detecting the alternate value in the downlink bandwidth for signaling that the MIB has a new enumeration, and then determining the MB bandwidth size based on the value of the new enumeration. For example, if the number of new channel bandwidth sizes for MB is greater than 2 (e.g., greater than the number of alternate values), some of the alternate bits may be used to signal this information. For example, the MIB may introduce new channel bandwidth sizes with 30, 35, and 40 PRBs. In this example, the dl-bandwidth IE may be set to different values ​​(to prevent legacy UE accounts from residing in the cell), and some of the alternate bits may be used to signal the true value. In a specific example, the MIB may have a format similar to the following:

[0093] MasterInformationBlock-MBMS-r14::=SEQUENCE{

[0094] dl-Bandwidth-MBMS-r14 ENUMERATED{n6,n15,n25,n50,n75,n100,other},

[0095] systemFrameNumber-r14 BIT STRING(SIZE(6)),

[0096] additionalNonMBSFNSubframes-r14 INTEGER(0..3),

[0097] dl-Bandwidth-MBMS-r17 ENUMERATED{n30,n35,n40,spare1},spareBIT STRING(SIZE(11))

[0098] }

[0099] Where the network can indicate "other" in the downlink bandwidth IE to signal the presence of the dl-Bandwidth-MBMS-r17 IE, which can specify the MB bandwidth size, and accordingly the communication component 198 can determine the MB bandwidth size (in this example, as 30, 35, or 40 PRBs). In another specific example, the MIB can have a format similar to the following:

[0100] MasterInformationBlock-MBMS-r14::=SEQUENCE{

[0101] dl-Bandwidth-MBMS-r14 ENUMERATED{n6,n15,n25,n50,n75,n100,n30,other},

[0102] systemFrameNumber-r14 BIT STRING(SIZE(6)),

[0103] additionalNonMBSFNSubframes-r14 INTEGER(0..3),

[0104] dl-Bandwidth-MBMS-r17 ENUMERATED{n35,n40},

[0105] spare BIT STRING(SIZE(12))

[0106] }

[0107] Where one alternate value in the downlink bandwidth IE can be defined to signal one MB bandwidth size (e.g., 30 PRBs) and another alternate value (e.g., as "other") signals the presence of the dl-Bandwidth-MBMS-r17 IE, communication component 198 can determine therefrom that the MB bandwidth size is either 35 or 40 PRBs. In either case, in this example, communication component 198 can determine the MB bandwidth size based on the MIB value(s), as described above.

[0108] In another example, the network may indicate the MB bandwidth size using some combination of channel bandwidth size and frequency that has not yet been defined in the radio access technology (e.g., in the standard of the radio access technology) for use. For example, in a given frequency range of the radio access technology, a downlink bandwidth size of 100 PRBs (20MHz) may not currently be supported, and the network may use this combination of 100 PRBs in the given frequency range to indicate or imply the configuration of the MB bandwidth size (e.g., 40 PRBs or 8MHz). The network and UE may know or configure the mapping of the frequency range and (s) bandwidth combination to the associated (s) MB bandwidth size, so that when the communication component 198 receives the frequency range and (s) bandwidth combination in the MIB, the communication component 198 may instead determine the associated MB bandwidth size. For example, the interpretation of the channel bandwidth may be based on the grid frequency (or E-UTRA Absolute Radio Frequency Number (EARFCN)). For example, in this case, there may be no UE in those frequency bands today (because those frequencies are not supported today). An alternative may be to reuse entries for some of those frequency bands and divert them to new channel bandwidth sizes. In either case, the communication component 198, upon encountering such a frequency / bandwidth combination, may interpret or replace the indicated downlink bandwidth with a specific MB bandwidth size that is known or otherwise configured to correspond to that frequency / bandwidth combination.

[0109] In another example, when determining the MB bandwidth size, the MIB may indicate one of the configurable bandwidth sizes (e.g., 6 PRBs, 15 PRBs, 25 PRBs, 50 PRBs, 75 PRBs, or 100 PRBs in NR / LTE) for receiving unicast services as the system bandwidth, but the network may expand or reduce the MB bandwidth size based on the configured system bandwidth. Currently, in LTE, the transmission bandwidth of the PMCH matches the bandwidth of the system bandwidth (in other words, the PMCH is fixed in the specification to use the same number of PRBs as the system bandwidth), while other channels (e.g., PDSCH) are dynamically scheduled and do not necessarily use the entire system bandwidth. In the examples described herein, the communication component 198 may determine the system bandwidth based on the MIB and may determine an MB bandwidth or MB bandwidth size to be different from the system bandwidth (e.g., expanded or reduced from the system bandwidth), as described herein. For example, for a given MB bandwidth size, the communication component 198 can determine from the MIB either: the largest of the configurable bandwidth sizes for receiving unicast services that is smaller than the MB bandwidth size; or the smallest of the configurable bandwidth sizes for receiving unicast services that is larger than the MB bandwidth size. In various examples, for a CC to provide MB services with an 8MHz MB bandwidth size, the MIB can potentially configure a 5MHz (25 PRBs) or 10MHz (50 PRBs) downlink bandwidth, and the MB bandwidth size can be expanded or reduced accordingly.

[0110] In these examples, communication component 198 can receive the MIB and determine the specified downlink bandwidth. Communication component 198 can begin decoding at least some system information (e.g., SIB) based on the specified downlink bandwidth at least until communication component 198 is able to determine the MB bandwidth size (e.g., in SIB, MCCH, PMCH).

[0111] For example, in the case where the MB bandwidth size is greater than the specified downlink bandwidth, the MIB may indicate a system bandwidth size of x PRBs. At some point, the network may inform the UE of the actual MB bandwidth size of y PRBs (where y>x in this example). For example, the communication component 198 may decode the system information based on the bandwidth size of x PRBs for at least some of the system information, and then the communication component 198 may decode subsequent system information (e.g., after determining the MB bandwidth) based on the MB bandwidth size of y PRBs.

[0112] In one specific example, the network may signal the bandwidth size per MBSFN area (in the SIB). When configuring the MBSFN area (e.g., in IE MBSFN-AreaInfo-r9 in SIB13), the UE may be configured to have a bandwidth size to be used for PMCH reception, and the communication component 198 may receive and determine the bandwidth size for MB services. In this example, different MBSFN areas may have different bandwidth sizes. For backward compatibility, in one example, the network may use one MBSFN area to serve legacy devices (devices that do not understand the new system bandwidth) and use another MBSFN area to fill the entire system bandwidth. The communication component 198 may decode the PMCH (e.g., MCCH) of the corresponding MBSFN area based on an indication of the bandwidth size for the MBSFN area received in the SIB using the channel bandwidth size of y PRBs indicated in the SIB (in other words, the MB bandwidth size).

[0113] In another example, when the MB bandwidth size is greater than the specified downlink bandwidth, the MIB may indicate a system bandwidth size of x PRBs, and the network may signal the MB bandwidth size in broadcast channel information (e.g., PMCH-InfoList) received on a broadcast control channel (e.g., MCCH). In this example, different services in the same MBSFN area may have different channel bandwidth sizes. In addition, in this example, the communication component 198 may receive the PMCH and decode the PMCH based on the bandwidth size of x PRBs indicated in the MIB. Next, for a PMCH without "bandwidth override" (e.g., as indicated in PMCH-InfoList), the communication component 198 may decode the channel based on the channel bandwidth size of x PRBs. For a PMCH with "bandwidth override" (e.g., as indicated in PMCH-InfoList), the communication component 198 may use the channel based on y PRBs, where the bandwidth size of y PRBs (or corresponding MHz) may be indicated in PMCH-InfoList, and the communication component 98 may determine the bandwidth size of y PRBs according to PMCH-InfoList. For subframes in which the network sends MCCH (and possibly some MCHs corresponding to services with larger system bandwidth), the communication component 198 may use the channel based on x PRBs (e.g., until the MB bandwidth size is indicated in the PMCH-InfoList sent via the MCCH and determined by the communication component 198 based on the PMCH-InfoList).

[0114] For example, in the case where the MB bandwidth size is less than the specified downlink bandwidth, the MIB may indicate a system bandwidth size of x PRBs greater than the MB bandwidth size. At some point, the network may inform the UE of the actual MB bandwidth size of y PRBs. In a specific example, when decoding system information, the communication component 198 uses x PRBs. The base station 102 may only transmit y PRBs of these x PRBs (e.g., by filtering out the edge of the channel). The communication component 198 can decode the PDDCH and system information, even in the case of such mismatches (e.g., channel estimation may give a lower gain at the edge). By implementation, as further described herein, the base station 102 may not schedule SIBs on the edge to assist in correct decoding. In one example, as described, the network may signal the MB bandwidth size of y PRBs in the SIB (e.g., per MBSFN area), in the MCCH (e.g., per PMCH in the PMCH-InfoList), or in other information. The communication component 198 may receive this information accordingly and use this information for channel estimation, demodulation (e.g., after SIB decoding or MCCH) after reception. In this regard, for example, communication component 198 can perform initial SIB or other decoding based on x PRBs until communication component 198 receives an indication of an MB bandwidth size of y PRBs in a SIB or MCCH. As described above, at this time, for example, communication component 198 can decode subsequent SIBs based on an MB bandwidth size of y PRBs.

[0115] In one example, in the case where the MB bandwidth size is less than the specified downlink bandwidth, the eNB can still schedule the PMCH with x PRBs and filter out the edges (by implementation), but there may be a loss of the outermost PBRs in this case. In other words, the outer PRBs or corresponding resource elements (REs) are "punctured" from the UE perspective so that the code rate can be reduced to enable decoding. For example, being punctured can mean that the RE is considered to not include communications from the base station and can be excluded from decoding. For a given bandwidth size, considering the REs as punctured and not decoding these REs can reduce the achievable code rate for a given communication.

[0116] In another example, when determining the MB bandwidth size, the network or UE may combine multiple CCs having one of the configurable bandwidth sizes (e.g., 6 PRBs, 15 PRBs, 25 PRBs, 50 PRBs, 75 PRBs, or 100 PRBs in NR / LTE) for receiving unicast services to achieve the total MB bandwidth size. For example, to achieve an MB bandwidth size of 8 MHz, the base station 102 may configure one CC with 5 MHz (25 PRBs) and another CC with 3 MHz (15 PRBs). In this example, there may be no bundling between CCs (e.g., where different CCs may broadcast different MB services). In another example, CCs may be bundled to facilitate the transmission of the same MB service (e.g., identified by the same temporary mobile group identifier (TMGI)) across multiple CCs. For example, when determining the MB bandwidth size accordingly, the communication component 198 may receive (e.g., from the network) an indication of bundling between CCs to receive the same MB service. In one example, the communication component 198 may receive information about the TMGI in a first CC (CC1—e.g., in an MCCH transmitted on CC1), which may also include a pointer to a second CC (CC2—e.g., the pointer may point to or have an EARFCN). In this example, the communication component 198 may receive signaling on both CCs, and an upper layer (e.g., a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, an application layer, or other layer) may merge corresponding communications to receive MB services. In another example, the communication component 198 may receive MBSFN area information (e.g., in SIB13, as described above), and may detect pointers to different CCs to determine that the two CCs may share services.

[0117] In method 400, at block 406, a device (e.g., UE 104) may receive MB services on a MB bandwidth of a MB bandwidth size. In one aspect, communication component 198, for example, in conjunction with one or more of TX processor 368, RX processor 356, or controller / processor 359, memory 360, receiver 354RX, may receive MB services on a MB bandwidth of a MB bandwidth size. For example, the MB bandwidth size may be as described in the example above with reference to block 404 and as further referenced herein. Figure 6-9In this regard, for example, the communication component 198 may receive MB services on a CC defined to have an MB bandwidth size determined based on a specified downlink bandwidth, where in some examples the downlink bandwidth may be a bandwidth size defined for a unicast service. In another example, the communication component 198 may receive MB services on multiple CCs defined to have corresponding bandwidth sizes defined for unicast services (which may be combined to achieve the MB bandwidth size). In one example, when receiving MB services, the communication component 198 may receive communications on MCCH, MTCH in the MB bandwidth.

[0118] As described in other examples herein, the communication component 198 (e.g., via the TX processor 368, the RX processor 356, or the controller / processor 359, the memory 360, the transmitter 354TX) may also report to the base station 102 an MBMS interest indication, which may indicate the corresponding MB bandwidth size. However, a given base station may not understand the new MB bandwidth size (e.g., because it is different from the configurable bandwidth size defined for the unicast service). In one example, the communication component 198 may instead report to the base station 102 an MBMS interest indication indicating the next highest bandwidth size defined for the unicast service. In other words, the communication component 198 may determine the smallest bandwidth size among the configurable bandwidth sizes for unicast communication that is greater than the desired MB bandwidth size, and may include an indication of the bandwidth size in an MBMS interest indication or other report to the base station 102. In this example or another example, the communication component 198 may also report the MB bandwidth size in a new field of the MBMS interest indication or another report. The base station 102 may determine, based on the indication received from the UE 104, the MB bandwidth size to utilize or one of the configurable bandwidth sizes for unicast services.

[0119] Figure 5 1 is a flow chart of an example of a method 500 for configuring an MB bandwidth size for receiving communications related to MB services according to some aspects of the present disclosure. The method 500 may be performed by a base station (such as base station 102; device 1202; processing system 1314, which may include memory 376 and may be the entire base station 102 or a component of the base station 102 (such as TX processor 316, RX processor 370 or controller / processor 375)).

[0120] In method 500, at block 502, a base station may transmit a configuration for a first set of multiple configurable bandwidth sizes for receiving a unicast service. In one aspect, configuration component 199, for example, in conjunction with one or more of TX processor 316, RX processor 370 or controller / processor 375, memory 376, transmitter 318TX, may transmit a configuration for a first set of multiple configurable bandwidth sizes for receiving a unicast service. For example, configuration component 199 may transmit a configuration including a MIB indicating one of the configurable bandwidth sizes.

[0121] In method 500, at box 504, the base station may determine an MB bandwidth size for receiving MB services, wherein the MB bandwidth size is different from each bandwidth size in a set of multiple configurable bandwidth sizes for receiving unicast services. In one aspect, the configuration component 199, for example in combination with one or more of the TX processor 316, the RX processor 370, or the controller / processor 375, the memory 376, may determine an MB bandwidth size for receiving MB services (by the UE), which is outside the set of multiple configurable bandwidth sizes for receiving unicast services (e.g., different from each bandwidth size in the set). For example, the configuration component 199 may determine that the MB bandwidth size is associated with the MB service (which may be 8, 7, or 6 MHz and is outside the configurable bandwidth sizes supported by the radio access technology (such as 1.4, 3, 5, 10, 15, and 20 MHz in LTE / NR)).

[0122] In method 500, at block 506, the base station may transmit an indication of the MB bandwidth size. In an aspect, configuration component 199, e.g., in conjunction with one or more of TX processor 316, RX processor 370 or controller / processor 375, memory 376, transmitter 318TX, may transmit an indication of the MB bandwidth size. In some implementations, configuration component 199 may transmit an indication of the MB bandwidth size in the MIB by using one or more alternate values ​​of the downlink bandwidth IE to indicate the MB bandwidth size or the presence of a new MB bandwidth size enumeration (in which case the new MB bandwidth size enumeration may indicate the MB bandwidth size), as described.

[0123] In other implementations, as described, the configuration component 199 may first transmit an indication of a system bandwidth selected from the configurable bandwidth sizes supported by the radio access technology (for unicast communications), and then may transmit a separate indication of the MB bandwidth size. For example, the configuration component 199 may transmit an indication of the system bandwidth selected from the configurable bandwidth sizes in the MIB, and then may transmit an indication of the MB bandwidth size in the SIB, PMCH, where the MB bandwidth size may be greater than or less than the size of the system bandwidth in each example. For example, in the case where the MB bandwidth size is large, the configuration component 199 may transmit an indication of the MB bandwidth size when configuring the MBSFN area (e.g., in SIB 13) so that different MBSFN areas may have different bandwidth sizes (e.g., MB bandwidth size or unicast bandwidth size for legacy devices). In this example, the configuration component 199 may transmit the previous SIBs including the SIB that configures the MB bandwidth size based on the system bandwidth specified in the MIB, and may transmit subsequent SIBs or PMCH based on the MB bandwidth size.

[0124] In another example, the configuration component 199 may transmit an indication of the MB bandwidth size in the MCCH control data (e.g., in the PMCH-InfoList), which may allow different channel bandwidths or bandwidth sizes for different services in the same MBSFN area. In this example, the configuration component 199 may transmit a PMCH indicated as having "no bandwidth override" in the PMCH-InfoList based on the system bandwidth indicated in the MIB, and may transmit a PMCH indicated as having "bandwidth override" in the PMCH-InfoList based on the MB bandwidth size indicated in the PMCH-InfoList or other control data.

[0125] For example, in the case where the MB bandwidth size is less than the system bandwidth configured in the MIB, the configuration component 199 may transmit the SIB or PMCH only on the MB bandwidth within the system bandwidth (e.g., by filtering out the edge of the channel), and the UE may decode the SIB or PMCH, as described above. Additionally, for example, the configuration component 199 may not schedule the SIB on the edge of the channel that does not include the MB bandwidth. For example, the MB bandwidth may be centered on the center of the system bandwidth, resulting in similar edges on the system bandwidth that may not be scheduled (for SIBs) or filtered out (for PMCH). Additionally, in this example, the configuration component 199 may similarly indicate the MB bandwidth size in the SIB (e.g., SIB 13 when configuring the MBSFN area), in the PMCH as described above, and may accordingly use the system bandwidth to transmit the previous SIBs including the SIB indicating the MB bandwidth size and use the MB bandwidth to transmit subsequent SIBs.

[0126] In another example, the configuration component 199 may configure multiple CCs with system bandwidths selected from configurable bandwidth sizes in the MIB, and may combine multiple CCs to achieve the MB bandwidth size. In one example, the configuration component 199 may indicate a relationship or binding between CCs for receiving MB services (e.g., a relationship with the same TMGI). In one example, the configuration component 199 may transmit the TMGI in the configuration of a first CC (CC1, e.g., in the MCCH), and may include a pointer to a second CC (CC2, e.g., a pointer to the corresponding EARFCN). In another example, the configuration component 199 may configure CC1 in an MBSFN area (e.g., in SIB 13), and may indicate a pointer to a different CC (CC2) to notify that the two CCs can be used for a given MB service.

[0127] In the method 500, at block 508, the base station may transmit the MB service on the MB bandwidth having the MB bandwidth size. In one aspect, the configuration component 199, for example in conjunction with one or more of the TX processor 316, the RX processor 370, or the controller / processor 375, the memory 376, the transmitter 318TX, may transmit the MB service on the MB bandwidth having the MB bandwidth size. For example, the configuration component 199 may transmit the MB service on the MB bandwidth indicated in the transmitted indication as described with reference to block 506. In another example, the configuration component 199 may transmit the MB service on multiple CCs, the multiple CCs as indicated in the transmitted indication, and as described with reference to block 506, each CC is configured based on a system bandwidth less than the MB bandwidth size and is combined to achieve the MB bandwidth size.

[0128] As described in other examples herein, UE 104 may also report to base station 102 an MBMS interest indication or other report, which may indicate a corresponding MB bandwidth size or a unicast bandwidth size selected based on the MB bandwidth size, which may be received by configuration component 199 (e.g., via TX processor 316, RX processor 370, or controller / processor 375, memory 376, receiver 318RX). In the case where the report includes a unicast bandwidth size (e.g., a minimum configurable bandwidth size higher than the MB bandwidth defined for unicast services), configuration component 199 may be conservative when scheduling MB service communications (e.g., based on the assumption that UE 104 has fewer available resources than it actually has). In the case where the report includes an MB bandwidth size, configuration component 199 may configure the MB service on an MB bandwidth having the MB bandwidth size, as described herein.

[0129] Figure 6An example of a system 600 for determining an MB bandwidth size for receiving MB services according to some aspects of the present disclosure is illustrated. The system 600 includes a UE 602 and a base station 604, which can communicate to configure MB services, as described herein. For example, at 606, the base station 604 can transmit a configuration of each bandwidth to the UE 602. As described, the configuration 606 of each bandwidth can include at least one of: a configuration of a configurable bandwidth size for a unicast service or otherwise defined by a radio access technology (e.g., NR or LTE), or an indication of the MB bandwidth size (e.g., indicated in a backup value of a downlink bandwidth indicated in a MIB). At 608, the UE 602 can determine the MB bandwidth size based on the configuration of each bandwidth. At 610, the UE 602 can then receive from the base station 604 an MB service communicated on an MB bandwidth having the MB bandwidth size.

[0130] Figure 7 An example of a system 700 for determining an MB bandwidth size for receiving an MB service based on an initial system bandwidth according to some aspects of the present disclosure is illustrated. The system 700 includes a UE 702 and a base station 704, which can communicate to configure an MB service, as described herein. For example, at 706, the base station 704 can transmit one or more of a MIB, one or more SIBs, or an MCCH based on a first bandwidth. As described, the first bandwidth can be one of a plurality of configurable bandwidth sizes that can be configured for a unicast service and indicated in the MIB (as described above). For example, the UE 702 can decode the MIB, SIB, MCCH based on the first bandwidth. For example, at 606 (as described in reference Figure 6 ), the base station 704 may transmit the configuration of each bandwidth to the UE 702. As described, the configuration 606 of each bandwidth may include an indication of the MB bandwidth (e.g., in one or more SIBs, in the MCCH, or other signaling). At 608, the UE 702 may determine the MB bandwidth size based on the configuration of each bandwidth. At 708, the UE 702 may then receive an additional SIB or MCCH from the base station 704 based on the MB bandwidth size, and may decode the additional SIB or MCCH accordingly based on the MB bandwidth size. At 610, the UE 702 may also receive from the base station 704 an MB service communicated on the MB bandwidth having the MB bandwidth size.

[0131] Figure 8 An example of a system 800 for determining an MB bandwidth size for receiving an MB service based on a set of multiple CCs according to some aspects of the present disclosure is illustrated. The system 800 includes a UE 802 and a base station 804 that can communicate to configure an MB service as described herein. For example, at 606 (as described in reference Figure 6As described, the base station 804 may transmit the configuration of each bandwidth to the UE 802. As described, the configuration 606 of each bandwidth may include a configuration of a configurable bandwidth size for a unicast service or otherwise defined by a radio access technology (e.g., NR or LTE). Additionally, for example, the configuration of each bandwidth may include a configuration of a bandwidth size for multiple CCs. At 806, the UE 802 may also receive the configuration of each CC (which may indicate a relationship between multiple CCs for MB services) from the base station 804 to achieve the MB bandwidth size. At 608, the UE 802 may determine the MB bandwidth size based on the configuration of each bandwidth, which may also include determining the MB bandwidth size based on a set of multiple CCs (which are combined to achieve the MB bandwidth size) at 808. At 610, the UE 802 may receive from the base station 804 an MB service communicated on an MB bandwidth having an MB bandwidth size (e.g., on multiple CCs).

[0132] Fig. 9 An example of a system 900 for reporting MB bandwidth sizes for receiving MB services according to some aspects of the present disclosure is illustrated. The system 900 includes a UE 902 and a base station 904, which can communicate to configure MB services, as described herein. For example, at 606, the base station 904 can transmit the configuration of each bandwidth to the UE 902. As described, the configuration 906 of each bandwidth can include a configuration of a configurable bandwidth size defined for a unicast service or otherwise by a radio access technology (e.g., NR or LTE). At 608, the UE 902 can determine the MB bandwidth size based on the configuration of each bandwidth, as described. At 906, the UE 902 can then report the bandwidth size to the base station 904 based on the MB bandwidth size. For example, the UE 902 can report the MB bandwidth size of the desired MB service, the minimum bandwidth size higher than the MB bandwidth size in the configurable bandwidth size for unicast services indicated in the configuration at 606, as described. At 610, the UE 902 can then receive the MB service communicated on the MB bandwidth with the MB bandwidth size from the base station 904.

[0133] Fig.10 1000 is a conceptual data flow diagram illustrating data flow between different devices / components in an example apparatus 1002. The apparatus may be a UE that may communicate with a base station 1050 or may include a portion of a UE (such as a communication component 198). The apparatus includes a configuration receiving component 1004 that receives a configuration for a first set of a plurality of configurable bandwidth sizes for receiving a unicast service, such as in conjunction with Figure 4 The device includes a bandwidth determination component 1006 that determines the MB bandwidth size for receiving the MB service, such as in combination with Figure 4The apparatus includes an MB service receiving component 1008 that receives an MB service on an MB bandwidth having an MB bandwidth size, such as in conjunction with Figure 4 The device includes a transmission component 1010 for transmitting certain communications, such as reports of MB bandwidth size, as described in other examples herein.

[0134] The apparatus may include executing Figure 4 The additional components of each box of the algorithm in the preceding flowchart. Thus, Figure 4 Each block in the aforementioned flow chart of can be performed by a component and the device may include one or more of those components. These components can be one or more hardware components specially configured to perform the process / algorithm, implemented by a processor configured to perform the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0135] Fig.11 1100 is a diagram illustrating an example of a hardware implementation of a device employing a processing system 1114. The processing system 1114 may be implemented with a bus architecture generally represented by a bus 1124. The bus 1124 may include any number of interconnecting buses and bridges, depending on the specific application and overall design constraints of the processing system 1114. The bus 1124 links various circuits together, including one or more processors or hardware components (represented by the processor 1104, components 1004, 1006, 1008, and 1010, and computer readable media / memory 1106). The bus 1124 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits.

[0136] The processing system 1114 may be coupled to the transceiver 1110. The transceiver 1110 is coupled to one or more antennas 1120. The transceiver 1110 provides a means for communicating with various other devices via a transmission medium. The transceiver 1110 receives signals from one or more antennas 1120, extracts information from the received signals, and provides the extracted information to the processing system 1114 (specifically, the configuration receiving component 1004, the MB service receiving component 1008, etc.). In addition, the transceiver 1110 receives information from the processing system 1114 (specifically, the transmission component 1010) and generates signals to be applied to one or more antennas 1120 based on the received information. The processing system 1114 includes a processor 1104 coupled to a computer-readable medium / memory 1106. The processor 1104 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory 1106. The software, when executed by the processor 1104, causes the processing system 1114 to perform the various functions described herein for any particular device. The computer-readable medium / memory 1106 may also be used to store data manipulated by the processor 1104 when executing the software. The processing system 1114 further includes at least one of components 1004, 1006, 1008, and 1010. These components may be software components running in the processor 1104, software components resident / stored in the computer-readable medium / memory 1106, one or more hardware components coupled to the processor 1104, or some combination thereof. The processing system 1114 may be a component of the UE 350 and may include the memory 360 or at least one of the following: the TX processor 368, the RX processor 356, and the controller / processor 359. Alternatively, the processing system 1114 may be an entire UE (such as Figure 3 UE 350).

[0137] In one configuration, a hardware implementation of a device for wireless communication includes: a device for receiving a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services; a device for determining an MB bandwidth size for receiving MB services, the MB bandwidth size being outside the set of multiple configurable bandwidth sizes for receiving unicast services; and a device for receiving MB services on an MB bandwidth having an MB bandwidth size. The aforementioned means may be the aforementioned components of the device 1002 or one or more components in the processing system 1114 of the device 1002 configured to perform the functions recited by the aforementioned means. As described herein, the processing system 1114 may include a TX processor 368, an RX processor 356, and a controller / processor 359. As such, in one configuration, the aforementioned means may be the TX processor 368, the RX processor 356, and the controller / processor 359 configured to perform the functions recited by the aforementioned means.

[0138] Fig.12 12 is a conceptual data flow diagram 1200 illustrating data flow between different devices / components in an example apparatus 1202. The apparatus can be a base station that can communicate with a UE 1250 or can include a portion of a base station (such as a configuration component 199). The apparatus includes a configuration transmission component 1204 that transmits a configuration for a first set of multiple configurable bandwidth sizes for receiving a unicast service, such as in conjunction with Figure 5 The device includes a bandwidth determining component 1206 that determines the MB bandwidth size for receiving the MB service, such as in combination with Figure 5 The device includes a bandwidth indication component 1208 that transmits an indication of the MB bandwidth or MB bandwidth size, such as in conjunction with Figure 5 The apparatus includes an MB service transmission component 1210 that transmits an MB service on an MB bandwidth having an MB bandwidth size, such as in conjunction with Figure 5 The device includes a receiving component 1212 for receiving certain communications, such as reports of MB bandwidth size, as described in other examples herein.

[0139] The apparatus may include executing Figure 5 The additional components of each box of the algorithm in the preceding flowchart. Thus, Figure 5 Each block in the aforementioned flow chart of can be performed by a component and the device may include one or more of those components. These components can be one or more hardware components specially configured to perform the process / algorithm, implemented by a processor configured to perform the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0140] Fig.13 1300 is a diagram illustrating an example of a hardware implementation of a device employing a processing system 1314. The processing system 1314 may be implemented with a bus architecture generally represented by a bus 1324. Depending on the specific application of the processing system 1314 and the overall design constraints, the bus 1324 may include any number of interconnecting buses and bridges. The bus 1324 links various circuits together, including one or more processors or hardware components (represented by the processor 1304, components 1204, 1206, 1208, 1210, and 1212, and computer readable media / memory 1306). The bus 1324 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits.

[0141] The processing system 1314 may be coupled to the transceiver 1310. The transceiver 1310 is coupled to one or more antennas 1320. The transceiver 1310 provides a means for communicating with various other devices via a transmission medium. The transceiver 1310 receives signals from the one or more antennas 1320, extracts information from the received signals, and provides the extracted information to the processing system 1314 (specifically, the receiving component 1212, etc.). In addition, the transceiver 1310 receives information from the processing system 1314 (specifically, the configuration transmission component 1204, the bandwidth indication component 1208, the MB service transmission component 1210, etc.), and generates a signal to be applied to the one or more antennas 1320 based on the received information. The processing system 1314 includes a processor 1304 coupled to a computer-readable medium / memory 1306. The processor 1304 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory 1306. The software, when executed by processor 1304, causes processing system 1314 to perform the various functions described herein for any particular device. Computer-readable medium / memory 1306 may also be used to store data manipulated by processor 1304 when executing the software. Processing system 1314 further includes at least one of components 1204, 1206, 1208, 1210, and 1212. These components may be software components running in processor 1304, software components resident / stored in computer-readable medium / memory 1306, one or more hardware components coupled to processor 1304, or some combination thereof. Processing system 1314 may be a component of base station 310 and may include memory 376 or at least one of: TX processor 316, RX processor 370, and controller / processor 375. Alternatively, processing system 1314 may be an entire base station (such as Figure 3 Base station 310).

[0142] In one configuration, the device 1202 for wireless communication includes means for performing the following operations: transmitting a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services in a cellular cell; determining an MB bandwidth size for transmitting an MB service, the MB bandwidth size being outside the set of multiple configurable bandwidth sizes for receiving unicast services; transmitting an indication of the MB bandwidth size; and transmitting the MB service on an MB bandwidth having the MB bandwidth size in the cellular cell. The aforementioned means may be the aforementioned components of the device 1202 or one or more components in the processing system 1314 of the device 1202 configured to perform the functions recited by the aforementioned means. As described herein, the processing system 1314 may include a TX processor 316, an RX processor 370, and a controller / processor 375. As such, in one configuration, the aforementioned means may be the TX processor 316, the RX processor 370, and the controller / processor 375 configured to perform the functions recited by the aforementioned means.

[0143] The following aspects are merely illustrative, and aspects thereof may be combined with aspects of other embodiments or teachings described herein without limitation.

[0144] Aspect 1 is a method of wireless communication, comprising: receiving, by a UE, a configuration for a first set of multiple configurable bandwidth sizes for receiving a unicast service, determining an MB bandwidth size for receiving an MB service, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving a unicast service, and receiving the MB service on an MB bandwidth having the MB bandwidth size.

[0145] In aspect 2, the method of aspect 1 includes: wherein the configuration includes a MIB indicating a second set of configurable bandwidth sizes defined for receiving unicast or MB services, wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes a first set of multiple configurable bandwidth sizes for receiving unicast services and at least an MB bandwidth size, and wherein determining the MB bandwidth size is based on determining one of the second set of configurable bandwidth sizes from the configuration.

[0146] In aspect 3, the method of aspect 2 includes: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes one or more additional MB bandwidth sizes.

[0147] In aspect 4, the method of any one of aspects 2 or 3 includes: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes an indicator within the MIB indicating an information element of the MB bandwidth size and one or more additional MB bandwidth sizes.

[0148] In aspect 5, a method as in any one of aspects 1 to 4, comprising: wherein the configuration includes a MIB indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein determining the MB bandwidth size includes replacing the one bandwidth size in the first set of multiple configurable bandwidth sizes with the MB bandwidth size based on a frequency range associated with a cellular cell in which the UE is located.

[0149] In aspect 6, a method as in any one of aspects 1 to 5, comprising: wherein the configuration includes indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services and a MIB indicating a SIB, wherein the method further includes receiving the SIB, and wherein determining the MB bandwidth size is further based on one or more information elements in the SIB indicating the MB bandwidth size as different from the one bandwidth size.

[0150] In aspect 7, the method of aspect 6 includes: wherein the MB bandwidth size is larger than the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services.

[0151] In aspect 8, the method of any one of aspects 6 or 7 includes: wherein the SIB is configured for an MBSFN area for MB service.

[0152] In aspect 9, the method of any one of aspects 6 to 8 comprises: decoding a SIB based on the one bandwidth size of a first set of a plurality of configurable bandwidth sizes for receiving unicast services, and decoding a subsequent SIB based on the MB bandwidth size.

[0153] In aspect 10, the method as in aspect 6 includes: wherein the MB bandwidth size is smaller than the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the method further includes: decoding the SIB, one or more previous SIBs, or a downlink control channel based on the one bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services.

[0154] In aspect 11, a method as in any one of aspects 1 to 10, comprising: wherein the configuration includes a MIB indicating a bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the method further comprises: receiving a broadcast channel information list in a control channel, and wherein determining the MB bandwidth size is based on the broadcast channel information list.

[0155] In aspect 12, the method of aspect 11 includes decoding a control channel based on the one bandwidth size of a first set of a plurality of configurable bandwidth sizes for receiving unicast services, and decoding a subsequent control channel based on the MB bandwidth size.

[0156] In aspect 13, the method of any one of aspects 1 to 12 comprises: wherein receiving the MB service on the MB bandwidth comprises receiving the MB service via a plurality of CCs, each of the plurality of CCs having a bandwidth size from a first set of a plurality of configurable bandwidth sizes that is smaller than the MB bandwidth size.

[0157] In aspect 14, the method of aspect 13 includes: receiving an indication on a control channel for the MB service that the MB service is to be received on the plurality of CCs.

[0158] In aspect 15, the method of any one of aspects 13 or 14 comprises: determining that the MB service is to be received on the plurality of CCs based on a SIB indicating an MBSFN area for the MB service.

[0159] In aspect 16, a method as in any one of aspects 1 to 15, comprising: determining a bandwidth size from a first set of multiple configurable bandwidth sizes for receiving a unicast service as a minimum bandwidth size in the first set that is greater than the MB bandwidth size, and reporting the one bandwidth size as the minimum bandwidth size in the first set that is greater than the MB bandwidth size to a cellular cell, wherein receiving the MB service is based on the report.

[0160] In aspect 17, the method of any one of aspects 1 to 16 comprises: reporting an indication of the MB bandwidth size to a cell, wherein receiving the MB service is based on reporting the indication of the MB bandwidth size to the cell.

[0161] Aspect 18 is a method of wireless communication, comprising: transmitting a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services in a cellular cell, determining an MB bandwidth size for transmitting an MB service, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services, transmitting an indication of the MB bandwidth size, and transmitting the MB service on an MB bandwidth having the MB bandwidth size in the cellular cell.

[0162] In aspect 19, the method of aspect 18 includes: wherein the configuration includes a MIB indicating a second set of configurable bandwidth sizes defined for receiving unicast or MB services, wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes a first set of multiple configurable bandwidth sizes for receiving unicast services and at least an MB bandwidth size, and wherein transmitting an indication of the MB bandwidth size includes indicating the MB bandwidth size in the configuration.

[0163] In aspect 20, the method of aspect 19, comprising: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes one or more additional MB bandwidth sizes.

[0164] In aspect 21, the method of any of aspects 19 or 20 comprises: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services comprises an indicator within the MIB of an information element indicating the MB bandwidth size and one or more additional MB bandwidth sizes.

[0165] In aspect 22, a method as in any one of aspects 18 to 21, comprising: wherein the configuration includes a MIB indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein transmitting an indication of the MB bandwidth size includes replacing the one bandwidth size in the first set of multiple configurable bandwidth sizes with the MB bandwidth size based on a frequency range associated with the cellular cell.

[0166] In aspect 23, a method as in any one of aspects 18 to 22, comprising: wherein the configuration includes indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services and a MIB indicating a SIB, wherein transmitting the indication includes: transmitting the SIB, and indicating the MB bandwidth size as different from the one bandwidth size in one or more information elements in the SIB.

[0167] In aspect 24, the method of aspect 23 includes: wherein the MB bandwidth size is larger than the one bandwidth size in a first set of a plurality of configurable bandwidth sizes for receiving unicast services.

[0168] In aspect 25, the method of any one of aspects 23 or 24 comprises: wherein the SIB is configured for an MBSFN area for MB service.

[0169] In aspect 26, the method of any one of aspects 23 to 25, comprising: wherein transmitting the SIB is based on the one bandwidth size of a first set of a plurality of configurable bandwidth sizes for receiving unicast services, and transmitting a subsequent SIB is based on the MB bandwidth size.

[0170] In aspect 27, the method of aspect 23 includes: wherein the MB bandwidth size is smaller than the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein transmitting the SIB, one or more previous SIBs, or the downlink control channel is based on the one bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services.

[0171] In aspect 28, a method as in any one of aspects 18 to 27, comprising: wherein the configuration includes a MIB indicating a bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, wherein transmitting the indicator includes transmitting a broadcast channel information list including the MB bandwidth size in a control channel.

[0172] In aspect 29, the method of aspect 28 includes transmitting a control channel based on the one bandwidth size of a first set of a plurality of configurable bandwidth sizes for receiving unicast services, and transmitting a subsequent control channel based on the MB bandwidth size.

[0173] In aspect 30, the method of any one of aspects 18 to 29 comprises: wherein transmitting the MB service comprises transmitting the MB service via a plurality of CCs, each of the plurality of CCs having a bandwidth size of a first set of a plurality of configurable bandwidth sizes that is smaller than the MB bandwidth size.

[0174] In aspect 31, the method of aspect 30 includes: wherein transmitting the indication includes transmitting an indication that the MB service is to be received on the plurality of CCs on a control channel for the MB service.

[0175] In aspect 32, the method of any one of aspects 30 or 31 includes: wherein transmitting the indication comprises indicating in a SIB of an MBSFN zone for MB services that MB services are to be received on the plurality of CCs.

[0176] In aspect 33, the method of any one of aspects 18 to 32 comprises: receiving an indication of the MB bandwidth size from the UE, wherein transmitting the MB service is based on the indication of the MB bandwidth size.

[0177] Aspect 34 is an apparatus for wireless communication, comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to: receive a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services, determine an MB bandwidth size for receiving MB services, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services, and receive MB services on an MB bandwidth having the MB bandwidth size.

[0178] In aspect 35, the apparatus of aspect 34 comprises: wherein the configuration includes a MIB indicating a second set of configurable bandwidth sizes defined for receiving unicast or MB services, wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes a first set of multiple configurable bandwidth sizes for receiving unicast services and at least an MB bandwidth size, and wherein the one or more processors are configured to determine the MB bandwidth size based on determining one of the second set of configurable bandwidth sizes from the configuration.

[0179] In aspect 36, the apparatus of aspect 35, comprising: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes one or more additional MB bandwidth sizes.

[0180] In aspect 37, the apparatus of any of aspects 35 or 36 comprises: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services comprises an indicator within the MIB indicating an information element of the MB bandwidth size and one or more additional MB bandwidth sizes.

[0181] In aspect 38, an apparatus as in any one of aspects 34 to 36, comprising: wherein the configuration includes a MIB indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the one or more processors are configured to determine the MB bandwidth size at least in part by replacing the one bandwidth size in the first set of multiple configurable bandwidth sizes with the MB bandwidth size based on a frequency range associated with a cellular cell in which the apparatus is located.

[0182] In aspect 39, an apparatus as in any one of aspects 34 to 37, comprising: wherein the configuration includes indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services and a MIB indicating a SIB, wherein the one or more processors are further configured to receive the SIB, and wherein the one or more processors are configured to further determine the MB bandwidth size based on one or more information elements in the SIB indicating the MB bandwidth size as different from the one bandwidth size.

[0183] In aspect 40, the apparatus of aspect 39, comprising: wherein the MB bandwidth size is larger than the one bandwidth size in a first set of a plurality of configurable bandwidth sizes for receiving unicast services.

[0184] In aspect 41, the apparatus of any one of aspects 39 or 40 comprises: wherein the SIB is configured for an MBSFN area for MB service.

[0185] In aspect 42, the apparatus of any one of aspects 39 to 41 comprises: wherein the one or more processors are further configured to decode the SIB based on the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and decode subsequent SIBs based on the MB bandwidth size.

[0186] In aspect 43, the apparatus of aspect 39 includes: wherein the MB bandwidth size is smaller than the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the one or more processors are further configured to: decode the SIB, one or more previous SIBs, or a downlink control channel based on the one bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services.

[0187] In aspect 44, an apparatus as in any one of aspects 34 to 43, comprising: wherein the configuration includes a MIB indicating a bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, wherein the one or more processors are further configured to: receive a broadcast channel information list in a control channel, and wherein the one or more processors are configured to determine the MB bandwidth size based on the broadcast channel information list.

[0188] In aspect 45, the apparatus of aspect 44, comprising: wherein the one or more processors are further configured to decode the control channel based on the one bandwidth size of a first set of multiple configurable bandwidth sizes for receiving unicast services, and decode subsequent control channels based on the MB bandwidth size.

[0189] In aspect 46, an apparatus as in any one of aspects 34 to 45, comprising: wherein the one or more processors are configured to receive MB services on an MB bandwidth at least in part by receiving the MB services via multiple CCs, each of the multiple CCs having a bandwidth size from a first set of multiple configurable bandwidth sizes that is smaller than the MB bandwidth size.

[0190] In aspect 47, the apparatus of aspect 46, comprising: wherein the one or more processors are further configured to receive an indication on a control channel for MB service that the MB service is to be received on the plurality of CCs.

[0191] In aspect 48, the apparatus of any of aspects 46 or 47, comprising: wherein the one or more processors are further configured to determine to receive MB services on the plurality of CCs based on a SIB indicating an MBSFN area for MB services.

[0192] In aspect 49, an apparatus as in any one of aspects 34 to 48, comprising: wherein the one or more processors are further configured to determine a bandwidth size from a first set of multiple configurable bandwidth sizes for receiving unicast services as a minimum bandwidth size in the first set that is greater than the MB bandwidth, and report the one bandwidth size as the minimum bandwidth size in the first set that is greater than the MB bandwidth size to a cellular cell, wherein the one or more processors are configured to receive the MB service based on the report.

[0193] In aspect 50, the apparatus of any one of aspects 34 to 49, comprising: wherein the one or more processors are further configured to report an indication of the MB bandwidth size to a cell, wherein receiving the MB service is based on reporting the indication of the MB bandwidth size to the cell.

[0194] Aspect 51 is a device for wireless communication, comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to: transmit a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services in a cellular cell, determine an MB bandwidth size for transmitting MB services, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services, transmit an indication of the MB bandwidth, and transmit the MB service on the MB bandwidth having the MB bandwidth size in the cellular cell.

[0195] In aspect 52, the apparatus of aspect 51 comprises: wherein the configuration includes a MIB indicating a second set of configurable bandwidth sizes defined for receiving unicast or MB services, wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes a first set of multiple configurable bandwidth sizes for receiving unicast services and at least an MB bandwidth size, and wherein the one or more processors are configured to transmit an indication of the MB bandwidth size in the configuration.

[0196] In aspect 53, the apparatus of aspect 52, comprising: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes one or more additional MB bandwidth sizes.

[0197] In aspect 54, the apparatus of any of aspects 52 or 53 comprises: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services comprises an indicator within the MIB indicating an information element of the MB bandwidth size and one or more additional MB bandwidth sizes.

[0198] In aspect 55, an apparatus as in any one of aspects 51 to 54, comprising: wherein the configuration includes a MIB indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the one or more processors are configured to transmit an indication of the MB bandwidth size at least in part by replacing the one bandwidth size in the first set of multiple configurable bandwidth sizes with the MB bandwidth size based on a frequency range associated with a cellular cell.

[0199] In aspect 56, an apparatus as in any one of aspects 51 to 55, comprising: wherein the configuration includes indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services and a MIB indicating a SIB, wherein the one or more processors are configured to transmit the SIB, and indicate the MB bandwidth size as different from the one bandwidth size in one or more information elements in the SIB.

[0200] In aspect 57, the apparatus of aspect 56, comprising: wherein the MB bandwidth size is larger than the one bandwidth size in a first set of a plurality of configurable bandwidth sizes for receiving unicast services.

[0201] In aspect 58, the apparatus of any one of aspects 56 or 57 comprises: wherein the SIB is configured for an MBSFN area for MB service.

[0202] In aspect 59, the apparatus of any one of aspects 56 to 58, comprising: wherein the one or more processors are configured to transmit a SIB based on the one bandwidth size of a first set of multiple configurable bandwidth sizes for receiving unicast services, and transmit subsequent SIBs based on the MB bandwidth size.

[0203] In aspect 60, the apparatus of aspect 56 includes: wherein the MB bandwidth size is smaller than the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the one or more processors are configured to: transmit the SIB, one or more previous SIBs, or a downlink control channel based on the one bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services.

[0204] In aspect 61, an apparatus as in any one of aspects 51 to 60, comprising: wherein the configuration includes a MIB indicating a bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, wherein the one or more processors are configured to transmit a broadcast channel information list including the MB bandwidth size in a control channel.

[0205] In aspect 62, the apparatus of aspect 61, comprising: wherein the one or more processors are further configured to transmit a control channel based on the one bandwidth size of a first set of multiple configurable bandwidth sizes for receiving unicast services, and transmit a subsequent control channel based on the MB bandwidth size.

[0206] In aspect 63, the apparatus of any one of aspects 51 to 62 comprises: wherein the one or more processors are configured to transmit MB services via multiple CCs, each of the multiple CCs having a bandwidth size from a first set of multiple configurable bandwidth sizes that is smaller than the MB bandwidth size.

[0207] In aspect 64, the apparatus of aspect 63, comprising: wherein the one or more processors are configured to transmit an indication on a control channel for the MB service that the MB service is to be received on the plurality of CCs.

[0208] In aspect 65, the apparatus of any of aspects 63 or 64 comprises: wherein the one or more processors are configured to transmit the indication at least in part by indicating in a SIB of an MBSFN area for MB services that MB services are to be received on the plurality of CCs.

[0209] In aspect 66, the apparatus of any one of aspects 51 to 65, comprising: wherein the one or more processors are further configured to receive an indication of the MB bandwidth size from the UE, wherein the one or more processors are configured to transmit the MB service based on the indication of the MB bandwidth size.

[0210] Aspect 67 is a device for wireless communication, comprising: a device for receiving a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services, a device for determining an MB bandwidth size for receiving MB services, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services, and a device for receiving MB services on an MB bandwidth having the MB bandwidth size.

[0211] In aspect 68, the apparatus of aspect 67 comprises: wherein the configuration includes a MIB indicating a second set of configurable bandwidth sizes defined for receiving unicast or MB services, wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes a first set of multiple configurable bandwidth sizes for receiving unicast services and at least an MB bandwidth size, and wherein the device for determining the MB bandwidth size determines one configurable bandwidth size from the second set of configurable bandwidth sizes from the configuration.

[0212] In aspect 69, the apparatus of aspect 68, comprising: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services comprises one or more additional MB bandwidth sizes.

[0213] In aspect 70, the apparatus of any of aspects 68 or 69, comprising: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services comprises an indicator within the MIB indicating an information element of the MB bandwidth size and one or more additional MB bandwidth sizes.

[0214] In aspect 71, a device as in any one of aspects 67 to 70, comprising: wherein the configuration includes a MIB indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the device for determining the MB bandwidth size replaces the one bandwidth size in the first set of multiple configurable bandwidth sizes with the MB bandwidth size based on a frequency range associated with a cellular cell in which the device is located.

[0215] In aspect 72, a device as in any one of aspects 67 to 71, comprising: wherein the configuration includes indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services and a MIB indicating a SIB, wherein the device further includes a device for receiving the SIB, and wherein the device for determining the MB bandwidth size further determines the MB bandwidth size based on one or more information elements in the SIB indicating the MB bandwidth size as different from the one bandwidth size.

[0216] In aspect 73, the apparatus of aspect 72, comprising: wherein the MB bandwidth size is larger than the one bandwidth size in a first set of a plurality of configurable bandwidth sizes for receiving unicast services.

[0217] In aspect 74, the apparatus of any one of aspects 72 or 73 comprises: wherein the SIB is configured for an MBSFN area for MB service.

[0218] In aspect 75, the apparatus of any one of aspects 72 to 74 comprises means for decoding a SIB based on the one bandwidth size of a first set of a plurality of configurable bandwidth sizes for receiving unicast services, and means for decoding subsequent SIBs based on the MB bandwidth size.

[0219] In aspect 76, the device as in aspect 72 includes: wherein the MB bandwidth size is smaller than the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the device further includes: a device for decoding a SIB, one or more previous SIBs, or a downlink control channel based on the one bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services.

[0220] In aspect 77, a device as in any one of aspects 67 to 76, comprising: wherein the configuration includes a MIB indicating a bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the device further includes a device for receiving a broadcast channel information list in a control channel, and wherein the device for determining the MB bandwidth size determines the MB bandwidth size based on the broadcast channel information list.

[0221] In aspect 78, the apparatus of aspect 77 comprises: means for decoding a control channel based on the one bandwidth size of a first set of a plurality of configurable bandwidth sizes for receiving unicast services, and means for decoding a subsequent control channel based on the MB bandwidth size.

[0222] In aspect 79, an apparatus as in any one of aspects 67 to 78, comprising: wherein a device for receiving MB service on MB bandwidth receives MB service via multiple CCs, each of the multiple CCs having a bandwidth size from a first set of multiple configurable bandwidth sizes that is smaller than the MB bandwidth size.

[0223] In aspect 80, the apparatus of aspect 79 comprises means for receiving an indication on a control channel for MB service that MB service is to be received on the plurality of CCs.

[0224] In aspect 81, the apparatus of any of aspects 79 or 80 comprises means for determining to receive MB services on the plurality of CCs based on a SIB indicating an MBSFN area for MB services.

[0225] In aspect 82, an apparatus as in any one of aspects 67 to 81, comprising: a device for determining a bandwidth size from a first set of multiple configurable bandwidth sizes for receiving unicast services as a minimum bandwidth size in the first set that is greater than the MB bandwidth, and a device for reporting the one bandwidth size as the minimum bandwidth size in the first set that is greater than the MB bandwidth size to a cellular cell, wherein receiving the MB service is based on the report.

[0226] In aspect 83, the apparatus of any one of aspects 67 to 82 comprises means for reporting an indication of the MB bandwidth size to a cell, wherein the means for receiving the MB service receives the MB service based on reporting the indication of the MB bandwidth size to the cell.

[0227] Aspect 84 is an apparatus for wireless communication, comprising: a device for transmitting a configuration for a first set of multiple configurable bandwidth sizes for receiving unicast services in a cellular cell, a device for determining an MB bandwidth size for transmitting MB services, the MB bandwidth size being different from each bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services, a device for transmitting an indication of the MB bandwidth, and a device for transmitting MB services on an MB bandwidth having the MB bandwidth size in the cellular cell.

[0228] In aspect 85, the apparatus of aspect 84 comprises: wherein the configuration includes a MIB indicating a second set of configurable bandwidth sizes defined for receiving unicast or MB services, wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes a first set of multiple configurable bandwidth sizes for receiving unicast services and at least an MB bandwidth size, and wherein the device for transmitting an indication of the MB bandwidth size indicates the MB bandwidth size in the configuration.

[0229] In aspect 86, the apparatus of aspect 85, comprising: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services includes one or more additional MB bandwidth sizes.

[0230] In aspect 87, the apparatus of any of aspects 85 or 86, comprising: wherein the second set of configurable bandwidth sizes defined for receiving unicast or MB services comprises an indicator within the MIB indicating an information element of the MB bandwidth size and one or more additional MB bandwidth sizes.

[0231] In aspect 88, an apparatus as in any one of aspects 84 to 87, comprising: wherein the configuration includes a MIB indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the means for transmitting an indication of the MB bandwidth size replaces the one bandwidth size in the first set of multiple configurable bandwidth sizes with the MB bandwidth size based on a frequency range associated with a cellular cell.

[0232] In aspect 89, an apparatus as in any one of aspects 84 to 88, comprising: wherein the configuration includes indicating one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services and a MIB indicating a SIB, wherein the device for transmitting the indication includes a device for transmitting the SIB and indicating the MB bandwidth size as different from the one bandwidth size in one or more information elements in the SIB.

[0233] In aspect 90, the apparatus of aspect 89, comprising: wherein the MB bandwidth size is larger than the one bandwidth size in a first set of a plurality of configurable bandwidth sizes for receiving unicast services.

[0234] In aspect 91, the apparatus of any one of aspects 89 or 90 comprises: wherein the SIB is configured for an MBSFN area for MB service.

[0235] In aspect 92, an apparatus as in any one of aspects 89 to 91, comprising: wherein the means for transmitting the SIB transmits the SIB based on the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the means for transmitting the SIB transmits subsequent SIBs based on the MB bandwidth size.

[0236] In aspect 93, the apparatus as in aspect 89 includes: wherein the MB bandwidth size is smaller than the one bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, and wherein the device for transmitting the SIB transmits the SIB, one or more previous SIBs, or a downlink control channel based on the one bandwidth size in the set of multiple configurable bandwidth sizes for receiving unicast services.

[0237] In aspect 94, an apparatus as in any one of aspects 84 to 93, comprising: wherein the configuration includes a MIB indicating a bandwidth size in a first set of multiple configurable bandwidth sizes for receiving unicast services, wherein the device for transmitting the indicator transmits a broadcast channel information list including the MB bandwidth size in a control channel.

[0238] In aspect 95, the apparatus of aspect 94 comprises means for transmitting a control channel based on the one bandwidth size of a first set of a plurality of configurable bandwidth sizes for receiving unicast services, and means for transmitting a subsequent control channel based on the MB bandwidth size.

[0239] In aspect 96, the apparatus of any one of aspects 84 to 95 comprises: wherein the means for transmitting the MB service transmits the MB service via a plurality of CCs, each of the plurality of CCs having a bandwidth size from a first set of a plurality of configurable bandwidth sizes that is smaller than the MB bandwidth size.

[0240] In aspect 97, the apparatus of aspect 96 includes: wherein the means for transmitting the indication transmits the indication that the MB service is to be received on the plurality of CCs on a control channel for the MB service.

[0241] In aspect 98, the apparatus of any one of aspects 96 or 97 comprises: wherein the means for transmitting the indication indicates in a SIB of an MBSFN area for MB services that the MB services are to be received on the plurality of CCs.

[0242] In aspect 99, the apparatus of any one of aspects 84 to 98 comprises means for receiving an indication of the MB bandwidth size from the UE, wherein the means for transmitting the MB service transmits the MB service based on the indication of the MB bandwidth size.

[0243] Aspect 100 is a computer-readable medium comprising code executable by one or more processors to perform the operations of one or more methods of any of Aspects 1-33.

[0244] The specific order or hierarchy of the various boxes in the disclosed process / flowcharts is an illustration of an example approach. Based on design preferences, the specific order or hierarchy of the various boxes in these process / flowcharts can be rearranged. In addition, some boxes can be combined or omitted. The attached method claims present the elements of the various boxes in an exemplary order and are not meant to be limited to the specific order or hierarchy presented.

[0245] The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be easily understood by those skilled in the art, and the universal principles defined in this article can be applied to other aspects. The claims are not intended to be limited to the aspects shown in this article, but should be granted the full scope consistent with the claims in language, wherein the singular reference of the elements is not intended to represent "there is and only one", but "one or more", unless otherwise stated. The wording "exemplary" is used herein to mean "used as an example, instance or explanation". Any aspect described as "exemplary" herein does not have to be interpreted as being superior to or superior to other aspects. Unless otherwise stated, the term "some / certain" refers to one or more. Combinations such as "at least one of A, B or C", "one or more of A, B or C", "at least one of A, B and C", "one or more of A, B and C", and "A, B, C or any combination thereof" include any combination of A, B or C, and may include multiple A, multiple B or multiple C. Specifically, combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B, and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, wherein any such combination may include one or more members of A, B, or C. All structural and functional equivalents of the elements of the various aspects described throughout this disclosure that are currently or hereafter known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly stated in the claims. The terms "module," "mechanism," "element," "device," and the like may not be a substitute for the term "means." Thus, no claim element should be interpreted as a means-plus-function unless the element is explicitly stated using the phrase "means for..."

Claims

1. A wireless communication method, comprising: receiving, by a user equipment (UE), a configuration for a first set of a plurality of configurable bandwidth sizes for receiving a unicast service, wherein the configuration includes indicating one bandwidth size in the first set of the plurality of configurable bandwidth sizes for receiving the unicast service and a master information block (MIB) indicating a system information block (SIB), wherein the SIB indicates, for each of a plurality of multicast broadcast single frequency network (MBSFN) areas, a respective MB bandwidth size for receiving a multicast broadcast (MB) service, each respective MB bandwidth size in the respective MB bandwidth sizes for the plurality of MBSFN areas being different from each bandwidth size in the first set of the plurality of configurable bandwidth sizes for receiving the unicast service; and The MB service is received over a MB bandwidth having the corresponding MB bandwidth size for an MBSFN area among the plurality of MBSFN areas.

2. The method of claim 1, wherein the SIB configuration is used for the multiple MBSFN areas of the MB service.

3. The method of claim 1, wherein the SIB indicates, for each MBSFN area in the plurality of MBSFN areas, the corresponding MB bandwidth size as a configurable bandwidth size in a second set of configurable bandwidth sizes defined for receiving MB services.

4. The method of claim 3, wherein the second set of configurable bandwidth sizes defined for receiving MB services includes one or more additional MB bandwidth sizes.

5. The method of claim 3, wherein the second set of configurable bandwidth sizes defined for receiving MB services comprises an indicator within the SIB indicating an information element of the corresponding MB bandwidth size for the MBSFN area in the plurality of MBSFN areas and one or more additional MB bandwidth sizes.

6. The method of claim 1 , wherein receiving the MB service on the MB bandwidth for the MBSFN area among the multiple MBSFN areas comprises receiving the MB service via multiple component carriers (CCs), each of the multiple CCs having a corresponding bandwidth size from the first set of multiple configurable bandwidth sizes that is smaller than the corresponding MB bandwidth size for the MBSFN area among the multiple MBSFN areas.

7. The method of claim 6, further comprising: receiving, on a control channel for the MB service, an indication that the MB service is to be received on the plurality of CCs; as well as A determination is made based on the SIB to receive the MB service on the plurality of CCs.

8. The method of claim 1, further comprising: An indication of the respective MB bandwidth size for the MBSFN area of ​​the plurality of MBSFN areas is reported to a cell, wherein receiving the MB service is based on reporting the indication of the respective MB bandwidth size.

9. A wireless communication method, comprising: transmitting, in a cell, a configuration for a first set of a plurality of configurable bandwidth sizes for receiving a unicast service, wherein the configuration includes a master information block (MIB) indicating a bandwidth size in the first set of a plurality of configurable bandwidth sizes for receiving a unicast service and indicating a system information block (SIB), wherein the SIB indicates, for each of a plurality of multicast broadcast single frequency network (MBSFN) areas, a respective MB bandwidth size for receiving a multicast broadcast (MB) service, each respective MB bandwidth size for the plurality of MBSFN areas being different from each bandwidth size of the first set of a plurality of configurable bandwidth sizes for receiving a unicast service; as well as The MB service is transmitted in the cell over a MB bandwidth having the corresponding MB bandwidth size for an MBSFN area among the plurality of MBSFN areas.

10. The method of claim 9, wherein the SIB configuration is used for the plurality of MBSFN areas for the MB service.

11. The method of claim 9, wherein the SIB indicates, for each MBSFN area in the plurality of MBSFN areas, the corresponding MB bandwidth size as a configurable bandwidth size in a second set of configurable bandwidth sizes defined for receiving MB services.

12. The method of claim 11, wherein the second set of configurable bandwidth sizes defined for receiving MB services includes one or more additional MB bandwidth sizes.

13. The method of claim 11, wherein The second set of configurable bandwidth sizes defined for receiving MB services includes an indicator within the SIB indicating an information element of the respective MB bandwidth size for the MBSFN area of ​​the plurality of MBSFN areas and one or more additional MB bandwidth sizes.

14. The method of claim 9, wherein transmitting the MB service comprises transmitting the MB service via a plurality of component carriers (CCs), each of the plurality of CCs having a corresponding bandwidth size from the first set of a plurality of configurable bandwidth sizes that is smaller than the corresponding MB bandwidth size for the MBSFN area in the plurality of MBSFN areas.

15. The method of claim 14, further comprising: An indication that the MB service is to be received on the plurality of CCs is transmitted on a control channel for the MB service, and an indication that the MB service is to be received on the plurality of CCs is indicated in the SIB.

16. The method of claim 9, further comprising: An indication of the respective MB bandwidth size for the MBSFN zone of the plurality of MBSFN zones is received from a user equipment (UE), wherein transmitting the MB service is based on the indication of the respective MB bandwidth size.

17. An apparatus for wireless communication, comprising: Transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to: receiving a configuration for a first set of a plurality of configurable bandwidth sizes for receiving a unicast service, wherein the configuration includes indicating one bandwidth size in the first set of the plurality of configurable bandwidth sizes for receiving the unicast service and indicating a master information block (MIB) of a system information block (SIB), wherein the SIB indicates, for each of a plurality of multicast broadcast single frequency network (MBSFN) areas, a respective MB bandwidth size for receiving a multicast broadcast (MB) service, each respective MB bandwidth size in the respective MB bandwidth sizes for the plurality of MBSFN areas being different from each bandwidth size in the first set of the plurality of configurable bandwidth sizes for receiving the unicast service; and The MB service is received over a MB bandwidth having the corresponding MB bandwidth size for an MBSFN area among the plurality of MBSFN areas.

18. The apparatus of claim 17, wherein the SIB configuration is used for the plurality of MBSFN areas for the MB service.

19. The apparatus of claim 17, wherein the SIB indicates, for each MBSFN area in the plurality of MBSFN areas, the corresponding MB bandwidth size as a configurable bandwidth size in a second set of configurable bandwidth sizes defined for receiving MB services.

20. The apparatus of claim 19, wherein the second set of configurable bandwidth sizes defined for receiving MB services comprises one or more additional MB bandwidth sizes.

21. The apparatus of claim 19, wherein the second set of configurable bandwidth sizes defined for receiving MB services comprises an indicator within the SIB indicating an information element of the corresponding MB bandwidth size for the MBSFN area of ​​the plurality of MBSFN areas and one or more additional MB bandwidth sizes.

22. An apparatus as described in claim 17, wherein the one or more processors are configured to receive the MB service on the MB bandwidth for the MBSFN area in the multiple MBSFN areas at least in part by receiving the MB service via multiple component carriers (CCs), each of the multiple CCs having a corresponding bandwidth size from the first set of multiple configurable bandwidth sizes that is smaller than the corresponding MB bandwidth size for the MBSFN area in the multiple MBSFN areas.

23. The apparatus of claim 22, wherein the one or more processors are further configured to: receiving, on a control channel for the MB service, an indication that the MB service is to be received on the plurality of CCs; and A determination is made based on the SIB to receive the MB service on the plurality of CCs.

24. The apparatus of claim 17, wherein the one or more processors are further configured to report to a cell an indication of the corresponding MB bandwidth size for the MBSFN area among the plurality of MBSFN areas, wherein receiving the MB service is based on reporting the indication of the corresponding MB bandwidth size.

25. An apparatus for wireless communication, comprising: Transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the memory and the transceiver, wherein the one or more processors are configured to: transmitting, in a cell, a configuration for a first set of a plurality of configurable bandwidth sizes for receiving a unicast service, wherein the configuration includes indicating one bandwidth size in the first set of the plurality of configurable bandwidth sizes for receiving the unicast service and a master information block (MIB) indicating a system information block (SIB), wherein the SIB indicates, for each of a plurality of multicast broadcast single frequency network (MBSFN) areas, a respective MB bandwidth size for receiving the multicast broadcast (MB) service, each respective MB bandwidth size for the plurality of MBSFN areas being different from each bandwidth size in the first set of the plurality of configurable bandwidth sizes for receiving the unicast service; as well as The MB service is transmitted in the cell over a MB bandwidth having the corresponding MB bandwidth size for an MBSFN area among the plurality of MBSFN areas.

26. The apparatus of claim 25, wherein the SIB configuration is used for the plurality of MBSFN areas for the MB service.

27. The apparatus of claim 25, wherein the SIB indicates, for each MBSFN area in the plurality of MBSFN areas, the corresponding MB bandwidth size as a configurable bandwidth size in a second set of configurable bandwidth sizes defined for receiving MB services.

28. The apparatus of claim 27, wherein the second set of configurable bandwidth sizes defined for receiving MB services comprises one or more additional MB bandwidth sizes.

29. The apparatus of claim 27, wherein the second set of configurable bandwidth sizes defined for receiving MB services comprises an indicator within the SIB indicating an information element of the corresponding MB bandwidth size for the MBSFN area in the plurality of MBSFN areas and one or more additional MB bandwidth sizes.

30. An apparatus as described in claim 25, wherein the one or more processors are further configured to transmit the MB service via multiple component carriers (CCs), each of the multiple CCs having a corresponding bandwidth size from the first set of multiple configurable bandwidth sizes that is smaller than the corresponding MB bandwidth size for the MBSFN area in the multiple MBSFN areas.

31. The apparatus of claim 30, wherein the one or more processors are further configured to: transmit an indication on a control channel for the MB service that the MB service is to be received on the plurality of CCs, and indicate in the SIB that the MB service is to be received on the plurality of CCs.

32. An apparatus as described in claim 25, wherein the one or more processors are further configured to: receive an indication of the corresponding MB bandwidth size for the MBSFN area among the multiple MBSFN areas from a user equipment (UE), wherein the one or more processors are configured to transmit the MB service based on the indication of the corresponding MB bandwidth size.

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