Invention Grant
- Patent Title: Handling physical random access channel transmissions in multi-carrier scenarios
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Application No.: US14890393Application Date: 2015-10-02
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Publication No.: US10257863B2Publication Date: 2019-04-09
- Inventor: Mattias Tan Bergström , Yufei Blankenship
- Applicant: Telefonaktiebolaget L M Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Murphy, Bilak & Homiller, PLLC
- International Application: PCT/SE2015/051041 WO 20151002
- International Announcement: WO2016/053179 WO 20160407
- Main IPC: H04W74/08
- IPC: H04W74/08

Abstract:
According to an aspect, a wireless terminal performs a method for a random access procedure in a wireless network. The method includes maintaining a preamble transmission attempt counter that tracks the number of random access preamble transmissions that are triggered and/or initiated in the random access procedure, including random access preamble transmissions that are aborted prior to completion of the transmission. The method also includes terminating the random access procedure in response to determining that the preamble transmission attempt counter indicates that a predetermined threshold number of transmission attempts have been made. Reports pertaining to failed preamble transmissions may be sent to the network, which then adjusts a configuration of the wireless terminal. The wireless terminal may also track time during an interval in which a preamble may be used in the random access procedure and terminate the random access procedure in response to determining that the interval has expired.
Public/Granted literature
- US20160270121A1 Handling Physical Random Access Channel Transmissions in Multi-Carrier Scenarios Public/Granted day:2016-09-15
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