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Method and apparatus for monitoring and processing component carriers

A technology of component carrier and carrier, applied in the field of wireless communication, can solve the problems of increasing WTRU power consumption, etc.

Inactive Publication Date: 2011-09-28
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Receiving and transmitting on multiple carriers significantly increases WTRU power consumption

Method used

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  • Method and apparatus for monitoring and processing component carriers
  • Method and apparatus for monitoring and processing component carriers
  • Method and apparatus for monitoring and processing component carriers

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Embodiment

[0070] CLAIMS 1. A method, performed by a wireless transmit / receive unit (WTRU), for monitoring and processing component carriers, the method comprising:

[0071] Monitor and process individual component carriers;

[0072] transmitting a signal indicating bandwidth aggregation capabilities of the WTRU;

[0073] receiving a radio resource control (RRC) connection reconfiguration message; and

[0074] Monitoring and processing of at least one pre-configured additional component carrier is established.

[0075] 2. according to the method described in embodiment 1, this method also comprises:

[0076] receive a Medium Access Control (MAC) Control Element (CE); and

[0077] activating or deactivating the pre-configured additional component carrier.

[0078] 3. The method of embodiment 2, wherein the preconfigured additional component carrier is activated or deactivated immediately in response to receiving the MAC CE.

[0079] 4. The method of embodiment 2, wherein the preconfi...

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Abstract

A method and apparatus are described which perform bandwidth aggregation by simultaneously monitoring and processing a number of simultaneous, non-contiguous or contiguous component carriers in the downlink. A wireless transmit / receive unit (WTRU) can be configured by an evolved Node-B (eNodeB) to support additional component carriers. A pre-configured additional component carrier may be used. Various methods for activating and deactivating the additional component carrier are also described.

Description

technical field [0001] This application relates to wireless communications. Background technique [0002] A key feature of Long Term Evolution-Advanced (LTE-A) is high data rates. This is supported by having a wireless transmit receive unit (WTRU) receive and transmit data on multiple LTE component carriers simultaneously in the uplink and downlink. This is called carrier aggregation (aggregation). [0003] Receiving and transmitting on multiple carriers significantly increases the WTRU's power consumption. It is known that the power consumption of the analog front end (which is a significant fraction of the total power consumption at the WTRU) scales linearly with the bandwidth or number of basic frequency blocks (ie, component carriers) aggregated. Rapid activation or deactivation of additional component carriers as needed saves WTRU resources such as Hybrid Automatic Repeat Request (HARQ) processing (including Channel Quality Indicator (CQI) and Sound Reference Signal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04L5/00
CPCH04W72/048H04W24/02H04L5/0096H04L5/0098Y02D30/70H04W72/51H04W24/08H04W72/0453H04W72/23H04W72/231H04W8/24H04L5/001H04W52/0209H04W72/21
Inventor J·L·格鲁P·马里内尔张国栋U·奥维拉-赫恩安德茨
Owner INTERDIGITAL PATENT HLDG INC
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