Signaling power allocation parameters for uplink coordinated multipoint (CoMP)

Patent metadata

Field	Value
Publication number	US-8983391-B2
Application number	US-201113209335-A
Country	US
Kind code	B2
Filing date	Aug 12, 2011
Priority date	Aug 12, 2011
Publication date	Mar 17, 2015
Grant date	Mar 17, 2015

Abstract

A method for obtaining multiple path loss parameters by a user equipment (UE) is described. A radio resource control (RRC) signaling message is received from a serving eNode B. A first transmit power corresponding to a first reference signal is obtained from the RRC signaling message. A second transmit power corresponding to a second reference signal is obtained from the RRC signaling message. A first path loss parameter is calculated using the first transmit power. A second path loss parameter is calculated using the second transmit power.

First claim

What is claimed is:

1. A method for obtaining information related to a cell specific reference signal (CRS) by a user equipment (UE), comprising:
receiving the CRS;
receiving a radio resource control (RRC) signaling message from a serving eNode B;
obtaining information related to frequency resources allocated to an additional CRS and information related to only antenna ports 0 - 3 , which correspond to the additional CRS, from the RRC signaling message.

2. A user equipment (UE) configured for obtaining information related to a cell specific reference signal (CRS), comprising:
a processor; and
a memory in electronic communication with the processor; wherein
instructions are stored in the memory, the instructions being executable to:
receive the CRS;
receive a radio resource control (RRC) signaling message from a serving eNode B; and
obtain information related to frequency resources allocated to an additional CRS and information related to only antenna ports 0 - 3 , which correspond to the additional CRS, from the RRC signaling message.

3. A method for signaling information related to a cell specific reference signal (CRS) by a serving eNode B, comprising:
generating the CRS;
generating a radio resource control (RRC) signaling message that comprises information related to frequency resources allocated to an additional CRS and information related to only antenna ports 0 - 3 , which correspond to the additional CRS; and
sending the RRC signaling message to a user equipment (UE).

4. An apparatus configured for signaling information related to a cell specific reference signal (CRS), comprising:
a processor; and
a memory in electronic communication with the processor; wherein
instructions are stored in the memory, the instructions being executable to:
generate the CRS;
generate a radio resource control (RRC) signaling message that comprises information related to frequency resource allocation of an additional CRS and information related to only antenna ports 0 - 3 , which correspond to the additional CRS; and
send the RRC signaling message to a user equipment (UE).

Assignees

• Khoshnevis Ahmad
• Yamada Shohei
• Yin Zhanping
• Sharp Kk

Inventors

• Khoshnevis Ahmad
• Yamada Shohei
• Yin Zhanping

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04B17/0045

  Electricity · mapped topic

• H04W52/242 Primary

  taking into account path loss · CPC title

• H04W52/146

  Uplink power control · CPC title

• H04L5/0035

  Resource allocation in a cooperative multipoint environment · CPC title