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US-12627459-B2 - Sub-band full-duplex granularity

US12627459B2US 12627459 B2US12627459 B2US 12627459B2US-12627459-B2

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a sub-band full-duplex (SBFD) pattern indication that indicates an SBFD pattern for an SBFD resource. The UE may identify a time domain granularity and a frequency domain granularity for the SBFD resource based at least in part on the SBFD pattern indication. The UE may communicate via the SBFD resource in accordance with the time domain granularity and the frequency domain granularity. Numerous other aspects are described.

Inventors

  • Abdelrahman Mohamed Ahmed Mohamed IBRAHIM
  • Muhammad Sayed Khairy Abdelghaffar
  • Ahmed Attia ABOTABL

Assignees

  • QUALCOMM INCORPORATED

Dates

Publication Date
20260512
Application Date
20230725

Claims (20)

  1. 1 . A user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors, coupled to the one or more memories, which are configured, individually or in any combination, to: receive a configuration message, the configuration message comprising a sub-band full-duplex (SBFD) pattern indication that indicates an SBFD pattern for an SBFD resource; identify a time domain granularity and a frequency domain granularity for the SBFD resource based at least in part on the SBFD pattern indication; and communicate one or more communications with a network node via the SBFD resource in accordance with the time domain granularity and the frequency domain granularity.
  2. 2 . The UE of claim 1 , wherein the one or more processors, to receive the SBFD pattern indication, are configured, individually or in any combination, to receive a serving cell configuration common indication that includes the SBFD pattern indication and a time division duplexing configuration common indication, wherein the SBFD pattern is a semi-static SBFD pattern.
  3. 3 . The UE of claim 2 , wherein the one or more processors, to identify the time domain granularity and the frequency domain granularity for the SBFD resource, are configured, individually or in any combination, to: identify the time domain granularity in accordance with a reference sub-carrier spacing (SCS) that is defined in the time division duplexing configuration common indication; and identify the frequency domain granularity in accordance with an SCS associated with a downlink band, an uplink band, and a guard band of the SBFD resource, wherein the SCS associated with the downlink band, the uplink band, and the guard band of the SBFD resource is different than an SCS of an active bandwidth part associated with a serving cell of the UE.
  4. 4 . The UE of claim 2 , wherein the one or more processors, to identify the time domain granularity and the frequency domain granularity for the SBFD resource, are configured, individually or in any combination, to: identify the time domain granularity in accordance with a time domain granularity indicated in the time division duplexing configuration common indication; and identify the frequency domain granularity in accordance with a sub-carrier spacing of an uplink sub-band or a downlink sub-band.
  5. 5 . The UE of claim 1 , wherein the one or more processors, to receive the SBFD pattern indication, are configured, individually or in any combination, to receive a UE configuration that includes the SBFD pattern indication, wherein the SBFD pattern is a semi-static SBFD pattern.
  6. 6 . The UE of claim 5 , wherein the one or more processors, to identify the time domain granularity and the frequency domain granularity for the SBFD resource, are configured, individually or in any combination, to: identify the time domain granularity in accordance with a reference sub-carrier spacing (SCS) that is defined in a time division duplexing configuration dedicated indication; and identify the frequency domain granularity in accordance with an SCS associated with a downlink band, an uplink band, and a guard band of the SBFD resource, wherein the SCS associated with the downlink band, the uplink band, and the guard band of the SBFD resource is different than an SCS of an active bandwidth part associated with a serving cell of the UE.
  7. 7 . The UE of claim 5 , wherein the one or more processors, to identify the time domain granularity and the frequency domain granularity for the SBFD resource, are configured, individually or in any combination, to: identify the time domain granularity in accordance with a time domain granularity indicated in a time division duplexing configuration dedicated indication; and identify the frequency domain granularity in accordance with a sub-carrier spacing of an uplink sub-band or a downlink sub-band.
  8. 8 . The UE of claim 5 , wherein the one or more processors, to identify the time domain granularity and the frequency domain granularity for the SBFD resource, are configured, individually or in any combination, to identify the time domain granularity in accordance with a serving cell configuration, wherein a sub-carrier spacing (SCS) associated with the SBFD resource is less than a bandwidth part SCS.
  9. 9 . The UE of claim 8 , wherein the SCS of the SBFD resource is not limited by an SCS indicated in a time division duplexing configuration common indication.
  10. 10 . The UE of claim 8 , wherein an SCS of the SBFD resource is greater than or equal to a reference SCS indicated in a time division duplexing configuration common indication.
  11. 11 . The UE of claim 1 , wherein the one or more processors, to identify the time domain granularity, are configured, individually or in any combination, to identify the time domain granularity in accordance with a slot-based SBFD indication.
  12. 12 . The UE of claim 1 , wherein the one or more processors, to identify the time domain granularity, are configured, individually or in any combination, to identify the time domain granularity in accordance with a symbol-based SBFD indication.
  13. 13 . The UE of claim 1 , wherein the one or more processors, to identify the time domain granularity, are configured, individually or in any combination, to identify the time domain granularity in accordance with a window that includes a slot-based SBFD indication and a symbol-based SBFD indication, wherein the window is based at least in part on a maximum number of switching points between time division duplexing resources and SBFD resources.
  14. 14 . The UE of claim 13 , wherein a slot-based SBFD window is defined based at least in part on a start indicator and at least one of a length indicator or an end indicator, and a symbol-based SBFD window is defined based at least in part on another length indicator, wherein the symbol-based SBFD window begins at an end of the slot-based SBFD window.
  15. 15 . The UE of claim 13 , wherein a slot-based SBFD window is defined based at least in part on a start indicator and at least one of a length indicator or an end indicator, and a symbol-based SBFD window is defined based at least in part on a bitmap for one or more transition slots.
  16. 16 . The UE of claim 1 , wherein the one or more processors are further configured to: receive an updated SBFD pattern indication that indicates an updated SBFD pattern for the SBFD resource; and identify an updated time domain granularity and an updated frequency domain granularity for the SBFD resource based at least in part on the updated SBFD pattern indication.
  17. 17 . The UE of claim 16 , wherein the updated SBFD pattern indication is based at least in part on a reference sub-carrier spacing associated with a slot format indicator.
  18. 18 . The UE of claim 16 , wherein the one or more processors, to receive the updated SBFD pattern indication, are configured, individually or in any combination, to receive downlink control information or a medium access control message that includes an indication of the updated SBFD pattern, and wherein the one or more processors are further configured to receive a radio resource control message that includes an indication of a reference sub-carrier spacing (SCS) for the updated SBFD pattern.
  19. 19 . The UE of claim 18 , wherein the one or more processors are further configured to: receive a first value that is less than or equal to each of a plurality of values that correspond, respectively, to all SCS indications associated with all configured bandwidth parts of a serving cell; and receive a second value that is less than or equal to a value of an SCS of the serving cell.
  20. 20 . A network node for wireless communication, comprising: one or more memories; and one or more processors, coupled to the one or more memories, which are configured, individually or in any combination, to: transmit a configuration message, the configuration message comprising a sub-band full-duplex (SBFD) pattern indication that indicates an SBFD pattern for an SBFD resource; and communicate one or more communications with a user equipment via the SBFD resource in accordance with a time domain granularity and a frequency domain granularity for the SBFD resource that are based at least in part on the SBFD pattern indication.

Description

FIELD OF THE DISCLOSURE Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for sub-band full-duplex granularity. BACKGROUND Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or the like). 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, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP). A wireless network may include one or more network nodes that support communication for wireless communication devices, such as a user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communications and uplink communications. “Downlink” (or “DL”) refers to a communication link from the network node to the UE, and “uplink” (or “UL”) refers to a communication link from the UE to the network node. Some wireless networks may support device-to-device communication, such as via a local link (e.g., a sidelink (SL), a wireless local area network (WLAN) link, and/or a wireless personal area network (WPAN) link, among other examples). The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate on a municipal, national, regional, and/or global level. New Radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP. NR is designed to better support mobile broadband internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink, using CP-OFDM and/or single-carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful. SUMMARY Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include receiving a sub-band full-duplex (SBFD) pattern indication that indicates an SBFD pattern for an SBFD resource. The method may include identifying a time domain granularity and a frequency domain granularity for the SBFD resource based at least in part on the SBFD pattern indication. The method may include communicating via the SBFD resource in accordance with the time domain granularity and the frequency domain granularity. Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include transmitting an SBFD pattern indication that indicates an SBFD pattern for an SBFD resource. The method may include communicating via the SBFD resource in accordance with a time domain granularity and a frequency domain granularity for the SBFD resource that are based at least in part on the SBFD pattern indication. Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured, individually or in any combination, to receive an SBFD pattern indication that indicates an SBFD pattern for an SBFD resource. The one or more processors may be configured, individually or in any combination, to identify a time domain granularity and a frequency domain granularity for the SBFD resource based at least in part on the SBFD pattern indication. The one or more processors may be configured, individually or in any combination, to communicate via the SBFD resource in accordance with the time domain granularity and the frequency domain granularity. Some aspects described herein relate to a network node for wireless communication. The network node may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured, individuall