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US-20260129666-A1 - SYSTEMS AND METHODS ASSOCIATED WITH CHANNEL-AWARE DATA MULTIPLEXING

US20260129666A1US 20260129666 A1US20260129666 A1US 20260129666A1US-20260129666-A1

Abstract

Disclosed herein are systems, methods, and instrumentalities associated with data allocation or multiplexing. A wireless transmit/receive unit (WTRU) may receive an uplink transmission grant from a network device and determine a threshold condition associated with allocating data based on a sub-transport block (sub-TB) unit size. Based on a determination that the threshold condition is satisfied if a first set of data is allocated to a first portion of a transport block (TB) and a second set of data is allocated to a second portion of the TB, the WTRU may allocate the first set of data to the first portion of the TB and the second set of data to the second portion of the TB, wherein at least one of the first portion or the second portion of the TB may have a size equal to the sub-TB unit size. The WTRU may then transmit the TB using the uplink transmission grant and based on the sub-TB unit size.

Inventors

  • Faris Alfarhan
  • Samuli Turtinen
  • Paul Marinier
  • Tuong Duc Hoang
  • Francois Periard
  • Mario Hudon

Assignees

  • INTERDIGITAL PATENT HOLDINGS, INC.

Dates

Publication Date
20260507
Application Date
20241106

Claims (20)

  1. 1 . A wireless transmit/receive unit (WTRU), comprising: a processor configured to: receive an uplink transmission grant from a network device; determine a threshold condition associated with allocating data based on a sub-transport block (sub-TB) unit size; based on a determination that the threshold condition is satisfied if a first set of data is allocated to a first portion of a transport block (TB) and a second set of data is allocated to a second portion of the TB, allocate the first set of data to the first portion of the TB and the second set of data to the second portion of the TB, wherein at least one of the first portion or the second portion of the TB has a size equal to the sub-TB unit size; and transmit the TB using the uplink transmission grant and based on the sub-TB unit size.
  2. 2 . The WTRU of claim 1 , wherein the processor is further configured to receive configuration information from the network device that indicates the sub-TB unit size.
  3. 3 . The WTRU of claim 1 , wherein the sub-TB unit size is smaller than a transport block size (TBS) configured for the uplink transmission grant.
  4. 4 . The WTRU of claim 1 , wherein the threshold condition is related to a transmission power of the WTRU.
  5. 5 . The WTRU of claim 4 , wherein the threshold condition is determined to be satisfied if a power headroom of the WTRU is above a threshold value.
  6. 6 . The WTRU of claim 4 , wherein the processor is configured to calculate an amount of transmission power allocated to a unit of data in the TB, and determine that the threshold condition is satisfied if the amount of transmission power is above a threshold value.
  7. 7 . The WTRU of claim 6 , wherein the unit of data is a data bit or a number of data bits included in a physical resource block.
  8. 8 . The WTRU of claim 4 , wherein the threshold condition is further related to a mobility state of the WTRU or a channel measurement of the WTRU.
  9. 9 . The WTRU of claim 4 , wherein the processor is configured to determine that the threshold condition is satisfied further based on a determination that the first set of data and the second set of data are associated with a specific data type or a specific priority.
  10. 10 . The WTRU of claim 4 , wherein the processor is configured to determine that the threshold condition is satisfied further based on a determination that the first set of data and the second set of data are associated with a specific logical channel or a specific quality of service (QoS) requirement.
  11. 11 . The WTRU of claim 1 , wherein the processor is further configured to transmit an indication to the network device that the transmission of the TB is based on the sub-TB unit size.
  12. 12 . The WTRU of claim 1 , wherein the uplink transmission grant is large enough to accommodate a third portion of the TB, and wherein, based on a determination that the threshold condition is no longer satisfied, the processor is further configured to exclude one or more physical resource blocks (PRBs) associated with the third portion from the transmission of the TB.
  13. 13 . A method implemented by a wireless transmit/receive unit (WTRU), the method comprising: receiving an uplink transmission grant from a network device; determining a threshold condition associated with allocating data based on a sub-transport block (sub-TB) unit size; based on a determination that the threshold condition is satisfied if a first set of data is allocated to a first portion of a transport block (TB) and a second set of data is allocated to a second portion of the TB, allocating the first set of data to the first portion of the TB and the second set of data to the second portion of the TB, wherein at least one of the first portion or the second portion of the TB has a size equal to the sub-TB unit size; and transmitting the TB using the uplink transmission grant and based on the sub-TB unit size.
  14. 14 . The method of claim 13 , further comprising receiving configuration information from the network device that indicates the sub-TB unit size.
  15. 15 . The method of claim 13 , wherein the threshold condition is related to a transmission power of the WTRU.
  16. 16 . The method of claim 15 , wherein the threshold condition is determined to be satisfied if a power headroom of the WTRU is above a threshold value.
  17. 17 . The method of claim 15 , wherein the threshold condition is determined to be satisfied by calculating an amount of transmission power allocated to a unit of data in the TB, and determining that the amount of transmission power is above a threshold value.
  18. 18 . The method of claim 15 , wherein the threshold condition is further related to a mobility state of the WTRU, a channel measurement of the WTRU, or respective types, priorities, logical channels, or quality of service requirements of the first set of data and the second set of data.
  19. 19 . The method of claim 13 , further comprising transmitting an indication to the network device that the transmission of the TB is based on the sub-TB unit size.
  20. 20 . The method of claim 13 , wherein the uplink transmission grant is large enough to accommodate a third portion of the TB, and wherein, based on a determination that the threshold condition is no longer satisfied, one or more physical resource blocks (PRBs) associated with the third portion of the TB are excluded from the transmission of the TB.

Description

BACKGROUND A wireless communication system may experience different channel conditions, power levels, and/or reliability requirements. Systems and methods that take these factors into account may improve the performance and efficiency of the communication system. SUMMARY Disclosed herein are systems, methods, and instrumentalities associated with data allocation or multiplexing. According to embodiments of the disclosure, a wireless transmit/receive unit (WTRU) may be configured to receive an uplink transmission grant from a network device and determine a threshold condition associated with allocating data based on a sub-transport block (sub-TB) unit size. Based on a determination that the threshold condition is satisfied if a first set of data is allocated to a first portion of a transport block (TB) and a second set of data is allocated to a second portion of the TB, the WTRU may allocate the first set of data to the first portion of the TB and the second set of data to the second portion of the TB, wherein at least one of the first portion or the second portion of the TB may have a size equal to the sub-TB unit size. The WTRU may then transmit the TB using the uplink transmission grant and based on the sub-TB unit size. In examples, the WTRU may be further configured to receive configuration information from the network device that may indicate the sub-TB unit size. In examples, the threshold condition may be related to a transmission power of the WTRU, and the threshold condition may be determined to be satisfied if a power headroom of the WTRU is above a threshold value. In examples, the threshold condition may be determined to be satisfied by calculating an amount of transmission power allocated to a unit of data (e.g., a data bit or a number of data bits of a physical resource block) in the TB, and determining that the amount of transmission power is above a threshold value. In examples, the threshold condition may be further related to a mobility state of the WTRU or a channel measurement of the WTRU. In examples, the WTRU may determine that the threshold condition is satisfied further based on a determination that the first set of data and the second set of data may be associated with a specific data type or a specific priority. In examples, the WTRU may determine that the threshold condition is satisfied further based on a determination that the first set of data and the second set of data may be associated with a specific logical channel or a specific quality of service (QoS) requirement. In examples, the WTRU may be further configured to transmit an indication to the network device that the transmission of the TB is based on the sub-TB unit size. In examples, the uplink transmission grant may be large enough to accommodate a third portion of the TB and, based on a determination that the threshold condition is no longer satisfied, the WTRU may exclude one or more physical resource blocks (PRBs) associated with the third portion from the transmission of the TB (e.g., such that the third portion of the TB may not consume any transmission power). BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a system diagram illustrating an example communications system in which one or more disclosed embodiments can be implemented. FIG. 1B is a system diagram illustrating an example wireless transmit/receive unit (WTRU) that can be used within the communications system illustrated in FIG. 1A according to an embodiment. FIG. 1C is a system diagram illustrating an example radio access network (RAN) and an example core network (CN) that can be used within the communications system illustrated in FIG. 1A according to an embodiment. FIG. 1D is a system diagram illustrating a further example RAN and a further example CN that can be used within the communications system illustrated in FIG. 1A according to an embodiment. FIG. 2 is a diagram illustrating an example of a traffic scheduling regulator. FIG. 3 is a diagram illustrating examples of UL traffic arrival and departure functions at a WTRU buffer. FIG. 4 is a diagram illustrating an example of prioritization between data flows competing for resources on a grant. FIG. 5 is a diagram illustrating an example of a leaky bucket traffic departure shaper. FIG. 6 is a diagram illustrating an example of a dual leaky bucket traffic departure shaper. FIG. 7 is a diagram illustrating an example of a data plane. DETAILED DESCRIPTION A more detailed understanding can be had from the following description, given by way of example in conjunction with the accompanying drawings. FIG. 1A is a diagram illustrating an example communications system 100 in which one or more disclosed embodiments can be implemented. The communications system 100 can be a multiple access system that provides content, such as voice, data, video, messaging, broadcast, etc., to multiple wireless users. The communications system 100 can enable multiple wireless users to access such content through the sharing of sy