CN101843160A

5G,4G,3G

Title

Handling random access channel responses

Application Number:

CN20088114090

Publication Date:

22-09-2010

Current Assignee:

Family ID:

Application Date:

29-10-2008

Declaring Company:

Publication Country:

US

Priority Date:

29-10-2007

Title

Handling random access channel responses

Application Number:

CN20088114090

Family ID:

Publication Country:

US

Publication Date:

22-09-2010

Application Date:

29-10-2008

Priority Date:

29-10-2007

Current Assignee:

Declaring Company:

Abstract  Abstract

The invention claims a method and apparatus for supporting a random access using a random access channel (RACH). Each of a plurality of wireless transmit/receive units (WTRUs) sends a random access request to a base station on an uplink RACH preamble. A RACH Response (Access Indication Channel AICH message) sent by the base station is received by each WTRU. The received RACH response signal comprises a control portion (Physical downlink control channel PDCCH) and a data portion (Physical downlink shared channel PDSCH). The control signal portion of the RACH Response indicates the location of the RACH Response message portion. The RACH Response control signal comprises multiple control channel elements (CCE) where each WTRU is allocated a respective CCE to provide its unique RACH Response control signal. The WTRU is configured to locate its intended CCE from among the multiple CCEs sent by the base station. Blind decoding is processed.

A method and apparatus for supporting a random access using a random access channel (RACH) are disclosed. Each of a plurality of wireless transmit/receive units (WTRUs) sends a random access request to a base station on an uplink RACH preamble. A RACH Response (Access Indication Channel AICH message) sent by the base station is received by each WTRU. The received RACH response signal comprises a control portion (Physical downlink control channel PDCCH) and a data portion (Physical downlink shared channel PDSCH). The control signal portion of the RACH Response indicates the location of the RACH Response message portion. The RACH Response control signal comprises multiple control channel elements (CCE) where each WTRU is allocated a respective CCE to provide its unique RACH Response control signal. The WTRU is configured to locate its intended CCE from among the multiple CCEs sent by the base station. Blind decoding.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.