Method and system for uplink access information transmission

By introducing sub-band full-duplex mode and preamble mechanism into the wireless communication network, the problem of limited uplink transmission for UEs was solved, enabling a random access process with lower latency and higher capacity, thus improving network access efficiency.

CN122139446APending Publication Date: 2026-06-02ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Filing Date
2023-11-07
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In wireless communication networks, uplink transmission of the UE is limited in time-division duplex mode, resulting in latency and capacity issues. In particular, the random access process is delayed during the initial network access process, and UL resource competition is severe.

Method used

The Subband Full-Duplex Mode (SBFD) is introduced, which allows the UE to transmit uplink data in full-duplex resources by configuring UL subbands in downlink time slots and reporting the UE's full-duplex capability through a preamble mechanism, thereby optimizing resource utilization.

Benefits of technology

It reduces the latency of the random access process, increases uplink capacity, reduces the probability of transmission contention, and improves network access efficiency and resource utilization.

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Abstract

This disclosure generally relates to methods, apparatus, and systems for wireless communication. One method performed by a wireless device may include: during a Physical Random Access Channel (RO) timing (RO), sending a first message associated with a random access procedure to a network node, the RO including RO frequency domain resources and RO time domain resources, wherein the RO satisfies various conditions. The first message includes at least one of the following: message 1 (Msg 1) in a four-step random access procedure; or message A (Msg A) in a two-step random access procedure.
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