US-20260129432-A1 - TRANSMITTING SECRET KEY AND/OR ARTIFICIAL NOISE BUFFER STATUS REPORTS

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a network node or a second UE, a secret key (SK)/artificial noise (AN) (SK/AN) buffer status report (BSR) that includes information associated with one or more of an SK or an AN. The first UE may transmit, to the network node or the second UE and based at least in part on the SK/AN BSR, a data BSR that indicates data that is available for transmission. The first UE may transmit, to the network node or the second UE, the data that is available based at least in part on the data BSR, wherein the data is secured based at least in part on one or more of the SK or the AN indicated by the SK/AN BSR. Numerous other aspects are described. WO

Inventors

• Ahmed Elshafie
• Alexandros Manolakos
• Hung Dinh Ly
• Wanshi Chen

Assignees

• QUALCOMM INCORPORATED

Dates

Publication Date

20260507

Application Date

20231024

Priority Date

20221122

Claims (20)

1. 1 . An apparatus for wireless communication at a first user equipment (UE), comprising: a memory; and one or more processors, coupled to the memory, configured to: transmit, to a network node or a second UE, a secret key (SK)/artificial noise (AN) (SK/AN) buffer status report (BSR) that includes information associated with one or more of an SK or an AN; transmit, to the network node or the second UE and based at least in part on the SK/AN BSR, a data BSR that indicates data that is available for transmission; and transmit, to the network node or the second UE, the data that is available based at least in part on the data BSR, wherein the data is secured based at least in part on one or more of the SK or the AN indicated by the SK/AN BSR.
2. 2 . The apparatus of claim 1 , wherein the SK/AN BSR is associated with a logical channel group (LCG) served by the first UE, and wherein the data BSR is associated with the LCG.
3. 3 . The apparatus of claim 1 , wherein a size of the SK/AN BSR is equal to or greater than a size of the data BSR.
4. 4 . The apparatus of claim 1 , wherein the one or more processors are configured to transmit the data BSR based at least in part on a size of the SK/AN BSR being equal to or greater than a size of the data BSR, or based at least in part on a difference between the size of the SK/AN BSR and the size of the data BSR satisfying a threshold.
5. 5 . The apparatus of claim 1 , wherein a size of the SK/AN BSR is less than a size of the data BSR, and wherein the one or more processors are configured to: secure a portion of the data based at least in part on the size of the SK/AN BSR; extend the size of the SK/AN BSR using a pseudo-random number generator such that the size of the SK/AN BSR becomes equal to or greater than the size of the data BSR; wait until an additional SK is derived; or transmit a portion of the data, wherein the portion of the data is associated with a quantity of bits that corresponds to the size of the SK/AN BSR, and wherein a remaining portion of the data is not transmitted.
6. 6 . The apparatus of claim 1 , wherein the SK/AN BSR that includes the information associated with one or more of the SK or the AN indicates: a seed SK obtained from a physical layer security based SK extraction; or SK bits buffered after a key derivation function is used.
7. 7 . The apparatus of claim 1 , wherein the one or more processors are further configured to: flush, based at least in part on an expiry of a timer, a buffer that stores the information associated with one or more of the SK or the AN; and transmit, to the network node or the second UE, an indication that the information associated with one or more of the SK or the AN has been flushed.
8. 8 . The apparatus of claim 1 , wherein a long B SR of a logical channel group is replaced by a first short BSR and a second short BSR, and wherein the first short BSR is associated with the SK/AN BSR and the second short BSR is associated with the data BSR.
9. 9 . The apparatus of claim 1 , wherein the SK/AN BSR is added to the data BSR based at least in part on the SK/AN BSR being associated with a plurality of logical channel groups (LCGs) served by the first UE, wherein the SK/AN BSR is added to the data BSR using one or more LCGs, of the plurality of LCGs, that are not used for the data BSR, wherein the one or more LCGs are lower priority LCGs, or wherein the one or more LCGs are indicated by the network node as being able to be multiplexed with the SK/AN BSR.
10. 10 . The apparatus of claim 1 , wherein a logical channel group (LCG) associated with the SK/AN BSR and the data BSR is configured with an SK/AN physical layer security, wherein the LCG is configured with the SK/AN physical layer security based at least in part on a priority associated with the data, and wherein a size associated with the SK/AN BSR is predefined or is indicated to the first UE by the network node.
11. 11 . The apparatus of claim 1 , wherein the one or more processors are further configured to: receive, from the network node, an indication that activates or deactivates a security feature associated with securing the data using an SK/AN physical layer security.
12. 12 . The apparatus of claim 1 , wherein a security level is defined for a logical channel group associated with the SK/AN BSR and the data BSR, and wherein the security level is based at least in part on one or more of the SK or the AN that is obtained using a physical layer technique or an upper layer technique.
13. 13 . The apparatus of claim 1 , wherein a scheduling of a logical channel group associated with the SK/AN BSR and the data BSR is based at least in part on an availability of one or more of the SK or the AN.
14. 14 . The apparatus of claim 1 , wherein a scheduling request occasion is useable based at least in part on an availability of one or more of the SK or the AN or based at least in part on an ability to obtain one or more of the SK or the AN to trigger the SK/AN BSR, and wherein the scheduling request occasion is useable based at least in part on an availability of high priority data.
15. 15 . An apparatus for wireless communication at a network node, comprising: a memory; and one or more processors, coupled to the memory, configured to: receive, from a user equipment (UE), a secret key (SK)/artificial noise (AN) (SK/AN) buffer status report (BSR) that includes information associated with one or more of an SK or an AN; receive, from the UE and based at least in part on the SK/AN BSR, a data BSR that indicates data that is available for transmission; and receive, from the UE, the data that is available based at least in part on the data BSR, wherein the data is secured based at least in part on one or more of the SK or the AN indicated by the SK/AN BSR.
16. 16 . A method of wireless communication performed by an apparatus of a first user equipment (UE), comprising: transmitting, to a network node or a second UE, a secret key (SK)/artificial noise (AN) (SK/AN) buffer status report (BSR) that includes information associated with one or more of an SK or an AN; transmitting, to the network node or the second UE and based at least in part on the SK/AN BSR, a data BSR that indicates data that is available for transmission; and transmitting, to the network node or the second UE, the data that is available based at least in part on the data BSR, wherein the data is secured based at least in part on one or more of the SK or the AN indicated by the SK/AN BSR.
17. 17 . The method of claim 16 , wherein the SK/AN BSR is associated with a logical channel group (LCG) served by the first UE, and wherein the data BSR is associated with the LCG.
18. 18 . The method of claim 16 , wherein a size of the SK/AN BSR is equal to or greater than a size of the data BSR.
19. 19 - 25 . (canceled)
20. 26 . The method of claim 16 , further comprising: receiving, from the network node, an indication that activates or deactivates a security feature associated with securing the data using an SK/AN physical layer security.

Description

CROSS-REFERENCE TO RELATED APPLICATION This Patent Application claims priority to Greek Nonprovisional Patent Application No. 20220100959, filed on Nov. 22, 2022, entitled “TRANSMITTING SECRET KEY AND/OR ARTIFICIAL NOISE BUFFER STATUS REPORTS,” which is hereby expressly incorporated by reference herein. FIELD OF THE DISCLOSURE Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for transmitting secret key and/or artificial noise (SK/AN) buffer status reports (BSRs). 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 In some implementations, an apparatus for wireless communication at a first user equipment (UE) includes a memory and one or more processors, coupled to the memory, configured to: transmit, to a network node or a second UE, a secret key (SK)/artificial noise (AN) (SK/AN) buffer status report (BSR) that includes information associated with one or more of an SK or an AN; transmit, to the network node or the second UE and based at least in part on the SK/AN BSR, a data BSR that indicates data that is available for transmission; and transmit, to the network node or the second UE, the data that is available based at least in part on the data BSR, wherein the data is secured based at least in part on one or more of the SK or the AN indicated by the SK/AN BSR. In some implementations, an apparatus for wireless communication at a network node includes a memory and one or more processors, coupled to the memory, configured to: receive, from a UE, an SK/AN BSR that includes information associated with one or more of an SK or an AN; receive, from the UE and based at least in part on the SK/AN BSR, a data BSR that indicates data that is available for transmission; and receive, from the UE, the data that is available based at least in part on the data BSR, wherein the data is secured based at least in part on one or more of the SK or the AN indicated by the SK/AN BSR. In some implementations, a method of wireless communication performed by an apparatus of a first UE includes transmitting, to a network node or a second UE, an SK/AN BSR that includes information associated with one or more of an SK or an AN; transmitting, to the network node or the second UE and based at least i