EP2705625B1

5G,4G

Title

Method and apparatus for prohibiting sounding reference signal transmission on newly activated secondary cells in a wireless communication system

Application Number:

EP20110799198

Publication Date:

18-03-2015

Current Assignee:

Family ID:

Application Date:

14-09-2011

Publication Country:

US

Priority Date:

02-05-2011

Declaring Company:

Abstract  Abstract

In a wireless network supporting aggregation of uplink component carriers sounding reference signals SRS are transmitted (62) on an uplink UL primary component carrier. An activation command corresponding to an UL secondary component carrier SCC is received (64) in response to which the receiving transceiver determines (65) whether it has valid timing information for the UL SCC wherein valid timing information for the UL SCC indicates that the UL SCC is UL synchronized. In response to this determination transmission of SRS on the UL SCC is enabled (66) if the UL SCC is synchronized when SRS is configured for the UL SCC. Otherwise transmission of SRS on the UL SCC is prohibited (68) until the UL SCC is UL synchronized.

In a wireless network supporting aggregation of uplink component carriers sounding reference signals SRS are transmitted (62) on an uplink UL primary component carrier. An activation command corresponding to an UL secondary component carrier SCC is received (64) in response to which the receiving transceiver determines (65) whether it has valid timing information for the UL SCC wherein valid timing information for the UL SCC indicates that the UL SCC is UL synchronized. In response to this determination transmission of SRS on the UL SCC is enabled (66) if the UL SCC is synchronized when SRS is configured for the UL SCC. Otherwise transmission of SRS on the UL SCC is prohibited (68) until the UL SCC is UL synchronized.

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

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Implicitly disclosed patent

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