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US-20260128835-A1 - METHODS AND ARRANGEMENTS TO SUPPORT CHANNEL BANDWIDTHS

US20260128835A1US 20260128835 A1US20260128835 A1US 20260128835A1US-20260128835-A1

Abstract

Logic may generate or detect a communication as a punctured block of orthogonal frequency division multiplex (OFDM) symbols on a carrier with a channel bandwidth of 5 megahertz or less, the punctured block having a first set of highest frequency resource blocks (RBs) of the OFDM symbols punctured or having a second set of highest frequency RBs and lowest frequency RBs punctured. The punctured block may comprise a physical downlink control channel (PDCCH) block, a synchronization signal/physical broadcast channel (SS/PBCH) block, or a downlink bandwidth part (DL BWP) on a carrier with a channel bandwidth of 3 MHz, 5 MHz, or other channel bandwidth less than 5 MHz. And logic may cause transmission of or demodulate and decode the punctured block.

Inventors

  • Guotong Wang
  • GANG XIONG

Assignees

  • INTEL CORPORATION

Dates

Publication Date
20260507
Application Date
20231026
Priority Date
20221104

Claims (20)

  1. 1 - 40 . (canceled)
  2. 41 . An apparatus of a user equipment to support a channel bandwidth, comprising: an interface for network communications; processing circuitry coupled with the interface to perform operations to: detect, via the interface, a transmission having punctured resource blocks (RBs) of orthogonal frequency division multiplex (OFDM) symbols on a carrier with a channel bandwidth of 5 megahertz or less, the punctured RBs comprising a first set of highest frequency RBs of the OFDM symbols or a second set of highest frequency RBs and lowest frequency RBs; and decode the punctured RBs.
  3. 42 . The apparatus of claim 41 , wherein the processing circuitry comprises a processor and a memory coupled with the processor, the apparatus further comprising radio frequency circuitry coupled with the processing circuitry, and one or more antennas coupled with the radio frequency circuitry.
  4. 43 . The apparatus of claim 41 , wherein the transmission comprises a physical downlink control channel (PDCCH) block on a carrier with a channel bandwidth of 3 MHz, wherein the punctured RBs comprise the first set of the highest frequency RBs, wherein the first set of the highest frequency RBs comprises nine highest-numbered RBs to obtain fifteen RBs forming a control-resource set (CORESET) 0.
  5. 44 . The apparatus of claim 41 , wherein the transmission comprises a physical downlink control channel (PDCCH) block on a carrier with a channel bandwidth of 5 MHz, wherein the punctured RBs comprise the first set of the highest frequency RBs, the first set of the highest frequency RBs comprises four highest-numbered RBs to obtain twenty RBs forming a control-resource set (CORESET) 0.
  6. 45 . The apparatus of claim 41 , wherein the transmission comprises a synchronization signal/physical broadcast channel (SS/PBCH) block, wherein the punctured RBs comprise the second set of highest frequency RBs and lowest frequency RBs, wherein the second set of highest frequency RBs and lowest frequency RBs comprises a combination of the highest frequency RBs comprising subcarriers 192 to 239 and the lowest frequency RBs comprising subcarriers 0 to 47.
  7. 46 . The apparatus of claim 41 , wherein the channel bandwidth of the block having 12 RBs, 15 RBs, or 20 RBs.
  8. 47 . A machine-readable medium containing instructions, which when executed by a processor, cause the processor to perform operations, the operations to: detect, via an interface, a transmission having punctured resource blocks (RBs) of orthogonal frequency division multiplex (OFDM) symbols on a carrier with a channel bandwidth of 5 megahertz or less, the punctured RBs comprising a first set of highest frequency RBs of the OFDM symbols or a second set of highest frequency RBs and lowest frequency RBs; and decode the punctured RBs.
  9. 48 . The machine-readable medium of claim 47 , wherein the transmission comprises a physical downlink control channel (PDCCH) block on a carrier with a channel bandwidth of 3 MHz, wherein the punctured RBs comprise the first set of the highest frequency RBs, wherein the first set of the highest frequency RBs comprises nine highest-numbered RBs to obtain fifteen RBs forming a control-resource set (CORESET) 0.
  10. 49 . The machine-readable medium of claim 47 , wherein the transmission comprises a physical downlink control channel (PDCCH) block on a carrier with a channel bandwidth of 5 MHz, wherein the punctured RBs comprise the first set of the highest frequency RBs, the first set of the highest frequency RBs comprises four highest-numbered RBs to obtain twenty RBs forming a control-resource set (CORESET) 0.
  11. 50 . The machine-readable medium of claim 47 , wherein the transmission comprises a synchronization signal/physical broadcast channel (SS/PBCH) block, wherein the punctured RBs comprise the second set of highest frequency RBs and lowest frequency RBs, wherein the second set of highest frequency RBs and lowest frequency RBs comprises a combination of the highest frequency RBs comprising subcarriers 192 to 239 and the lowest frequency RBs comprising subcarriers 0 to 47.
  12. 51 . An apparatus to support a channel bandwidth, comprising: an interface for network communications; processing circuitry coupled with the interface to perform operations to: generate a transmission by puncturing resource blocks (RBs) of orthogonal frequency division multiplex (OFDM) symbols on a carrier with a channel bandwidth of 5 megahertz (MHz) or less, wherein puncturing the RBs comprises puncturing a first set of highest frequency resource blocks of the OFDM symbols or puncturing a second set of highest frequency RBs and lowest frequency RBs; and send the transmission via the interface.
  13. 52 . The apparatus of claim 51 , wherein the processing circuitry comprises a processor and a memory coupled with the processor, the apparatus further comprising radio frequency circuitry coupled with the processing circuitry, and one or more antennas coupled with the radio frequency circuitry.
  14. 53 . The apparatus of claim 51 , wherein puncturing resource blocks (RBs) comprises puncturing a physical downlink control channel (PDCCH) block on a carrier with a channel bandwidth of 3 MHz, wherein the first set of the highest frequency RBs of the OFDM symbols punctured comprises nine highest-numbered RBs to obtain a fifteen RBs forming a control-resource set (CORESET) 0.
  15. 54 . The apparatus of claim 51 , wherein puncturing resource blocks (RBs) comprises puncturing a physical downlink control channel (PDCCH) block on a carrier with a channel bandwidth of 5 MHz, wherein the first set of the highest frequency RBs of the OFDM symbols punctured comprises four highest-numbered RBs to obtain a twenty RBs forming a control-resource set (CORESET) 0.
  16. 55 . The apparatus of claim 51 , wherein puncturing resource blocks (RBs) comprises puncturing a synchronization signal/physical broadcast channel (SS/PBCH) block and the second set second set comprises a combination of the highest frequency RBs and the lowest frequency RBs punctured in any four OFDM symbols of the SS/PBCH block, the highest frequency RBs comprising subcarriers 192 to 239, the lowest frequency RBs comprising subcarriers 0 to 47.
  17. 56 . The apparatus of claim 51 , wherein the channel bandwidth of the block having 12 RBs, 15 RBs, or 20 RBs.
  18. 57 . The apparatus of claim 51 , wherein subcarrier spacing (SCS) is 15 kilohertz (KHz).
  19. 58 . The apparatus of claim 51 , wherein a control-channel elements (CCE) to resource-element group (REG) mapping for a control-resource set can be interleaved or non-interleaved.
  20. 59 . A machine-readable medium containing instructions, which when executed by a processor, cause the processor to perform operations, the operations to: generate a transmission by puncturing resource blocks (RBs) of orthogonal frequency division multiplex (OFDM) symbols on a carrier with a channel bandwidth of 5 megahertz or less, wherein puncturing the RBs comprises puncturing a first set of highest frequency resource blocks of the OFDM symbols or puncturing a second set of highest frequency RBs and lowest frequency RBs; and send the transmission via an interface.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application claims priority under Article 8 from PCT Application No. PCT/CN2022/129754, entitled “SUPPORTING OPERATION WITH BANDWIDTH LESS THAN 5 MHZ IN NR”, filed on Nov. 4, 2022, and PCT Application No. PCT/CN2023/076725, entitled “SUPPORTING OPERATION WITH BANDWIDTH LESS THAN 5 MHZ IN NR”, filed on Feb. 17, 2023, the subject matter of which is incorporated herein by reference. TECHNICAL FIELD Embodiments herein relate to wireless communications, and more particularly, to support for channel bandwidths for communication such as channel bandwidths of less than 5 megahertz (MHz). BACKGROUND The rapid growth of wireless communication technologies and the increasing demand for high-quality and efficient data transmission have led to the development of advanced communication systems. With the proliferation of wireless technologies inherent to the deployment of cellular systems such as fifth generation (5G) cellular systems, components of the cellular system are constantly sending and receiving wireless communications and communications-related signaling. In fifth generation (5G) New Radio (NR) operation starting from Release 15, the minimum channel bandwidth is 20 megahertz (MHz). Although user equipment for the NR operation can support multiple channel bandwidths, channel bandwidths of 5 MHz and smaller are not supported in 5G cellular systems. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 depicts an embodiment of a system including base stations, user equipment, and cloud-based computing and data services interconnected via a communication network; FIG. 2 illustrates another embodiment of a network in accordance with various embodiments such as the network in FIG. 1; FIG. 3 illustrates another embodiment of a network in accordance with various embodiments; FIG. 4A depicts an embodiment of a time and frequency allocation for SS/PBCH block structure; FIG. 4B depicts an embodiment of a 5 MHz channel bandwidth communication CORESET 0 (CORESET for Type0-PDCCH) table; FIG. 4C depicts another embodiment showing an example of a less than 5 MHz channel bandwidth communication; FIG. 4D depicts another embodiment of a less than 5 MHz channel bandwidth communication; FIG. 4E depicts another embodiment of a less than 5 MHz channel bandwidth communication CORESET 0 table; FIG. 4F depicts another embodiment of a CORESET 0 table; FIG. 4G depicts another embodiment of a CORESET 0 table; FIG. 4H depicts another embodiment of a CORESET 0 table; FIG. 5 is an embodiment of a simplified block diagram of a base station and a user equipment (UE) such as the base stations or RANs, the UEs, and communication networks shown in FIGS. 1-4; FIG. 6 depicts a flowchart of an embodiment for a base station such as the embodiments described in conjunction with FIGS. 1-5; FIG. 7 depicts a flowchart of an embodiment for a user equipment such as the embodiments described in conjunction with FIGS. 1-5; FIG. 8 depicts an embodiment of protocol entities that may be implemented in wireless communication devices; FIG. 9 illustrates embodiments of the formats of PHY data units (PDUs) that may be transmitted by the PHY device via one or more antennas and be encoded and decoded by a MAC entity such as the processors in FIG. 5, the baseband circuitry in FIGS. 5, 13, and 14 according to some aspects; FIGS. 10A-B depicts embodiments of communication circuitry such as the components and modules shown in the user equipment and base station shown in FIG. 5; FIG. 11 depicts an embodiment of a storage medium described herein; FIG. 12 illustrates an architecture of a system of a network in accordance with some embodiments; FIG. 13 illustrates example components of a device in accordance with some embodiments such as the base stations and UEs shown in FIGS. 1-12; FIG. 14 illustrates example interfaces of baseband circuitry in accordance with some embodiments such as the baseband circuitry shown and/or discussed in conjunction with FIGS. 1-13; and FIG. 15 depicts an embodiment of a block diagram of components to perform functionality described. DETAILED DESCRIPTION OF EMBODIMENTS The following is a detailed description of embodiments depicted in the drawings. The detailed description covers all modifications, equivalents, and alternatives falling within the appended claims. To support operation with a channel bandwidth of 5 megahertz (MHz) or less for subcarrier spacing (SCS) of 15 kilohertz (KHz), enhancement is needed for physical broadcast channel (PBCH), physical downlink control channel (PDCCH), and channel state information (CSI) reference signal (RS)/tracking reference signal (CSI-RS/TRS). Embodiments may provide definitions of punctured blocks and/or rate matching for communications on a carrier of 5 MHz or less to determine and generate communications having a channel bandwidth of 5 MHz or less. For instance, a communication of a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), a downl