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Performing overload control for random access channel

A technology for random access to preamble and synchronization signals, applied in wireless communication, radio transmission systems, electrical components, etc., and can solve problems such as high beam congestion

Pending Publication Date: 2021-03-16
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, current technologies cannot address the challenge that most beams in a cell or group experience high levels of congestion, such as wireless hotspots

Method used

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  • Performing overload control for random access channel
  • Performing overload control for random access channel
  • Performing overload control for random access channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Certain embodiments described herein can help manage overloading of the random access procedure. Example embodiments described herein may have various benefits and / or advantages. For example, some embodiments may avoid the need for user equipment to perform back-off procedures only for individual beams. Additionally, certain embodiments may manage the loading of beams experiencing high load conditions by applying group-based backoff timers and / or backoff timers independent of the beams used by the user equipment to transmit random access preambles. Certain embodiments may also provide a simplified System Information Block (SIB) option that does not require changing the Backoff Indicator field in the MAC PDU subheader of the RAR by using R bits for the backoff indicator. Furthermore, some embodiments may indicate how to apply a back-off procedure, eg by using R bits in the back-off indicator sub-header in the RAR's MAC PDU, thereby providing additional benefits by allow...

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PUM

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Abstract

In accordance with some embodiments, an apparatus may include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code canbe configured to, with the at least one processor, cause the apparatus to at least receive at least one random access preamble from user equipment. The at least one memory and the computer program code can be further configured to, configure at least one backoff indicator. The at least one memory and the computer program code can be further configured to, with the at least one processor, cause theapparatus to at least transmit the at least one backoff indicator and at least one backoff configuration indicator to the user equipment. The at least one backoff configuration indicator is used to indicate how the at least one backoff indicator is applied.

Description

technical field [0001] Certain embodiments may involve communication systems. For example, some embodiments may involve a random access procedure associated with a backoff timer. Background technique [0002] Backoff techniques may be applied to beam and synchronization signal block (SSB) combinations, where a backoff timer is used for a specific SSB when a Random Access Response (RAR) containing a backoff indicator (BI) is received. Additionally, scaling factors can be exploited in New Radio (NR) technologies, where user equipment configured with an adjustment factor can receive higher priority than other user equipment by adjusting the backoff timer to a lower value than indicated by the BI . The use of backoff timers may be beneficial to improve the performance of overloaded beams. [0003] However, current techniques cannot address the challenge that most beams in a cell or group experience high levels of congestion, such as wireless hotspots. For example, indexing c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08
CPCH04W74/0833H04B7/0665H04W74/002H04W56/001H04W72/046H04W74/0816
Inventor S·图尔蒂南吴春丽T·科斯克拉B·塞比尔E·马尔卡马基张延冀
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD