A method and an apparatus for performing random access and uplink transmission of a User Equipment (UE) supporting Carrier Aggregation (CA) are provided. The method includes determining whether a Scheduling Request (SR) is pending, determining, when the SR is pending, whether an uplink transmission resource is available in a current Transmission Time Interval (TTI), determining, when the uplink transmission resource is not available, whether a Physical Uplink Control Channel (PUCCH) resource is configured for transmission of the SR, and initiating, when the PUCCH resource is not configured, a random access process in a primary cell. The random access method and apparatus of the present invention is advantageous to reduce the waste of transmission resources.

Claims

10 · 2 independent · depth 2

10 granted claims

›1.independentA method of controlling uplink data transmission for a User Equipment (UE), comprising:nidentifying whether preamble transmission is overlapped with a…+4

›6.independentA User Equipment (UE) of controlling uplink data transmission, comprising:na transmitter configured to transmit data; anda controller configured to id…+4

Classifications

6 codes

IPC · International Patent Classification

Section H — Electricity

H04W74/08
H04W72/00
H04W72/12
H04W52/28
H04W4/00
H04W76/06

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File wrapper

Pendency

1.7 y

630 days filing → grant

Office actions

none on record

Examiner

Ronald B Abelson

art unit 2476 · TC 2400

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Citations: 11 back · 0 forward

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Priority chain

2 priority documents

Priority

11 Jan 2011

earliest claimed

›Priority documents — 2

Type	Document	Date
provisional	US 61431635	11 Jan 2011
related publication	US 20140307670 A1	16 Oct 2014

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