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Methods of providing power headroom reports arranged in order of component carrier indices and related wireless terminals and base stations

A power headroom, component carrier technology, applied in the field of communication

Active Publication Date: 2013-05-22
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are known techniques for reporting power headroom, there remains a need for improved power headroom reporting that provides increased efficiency

Method used

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  • Methods of providing power headroom reports arranged in order of component carrier indices and related wireless terminals and base stations
  • Methods of providing power headroom reports arranged in order of component carrier indices and related wireless terminals and base stations
  • Methods of providing power headroom reports arranged in order of component carrier indices and related wireless terminals and base stations

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Embodiment Construction

[0038] Now, the present invention will be described more fully hereinafter with reference to the accompanying drawings that illustrate embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to the Those skilled in the art.

[0039] For ease of illustration and explanation only, various embodiments of the invention are described herein in the context of operation in an LTE RAN, such as RAN 100 of FIG. 1 . However, it will be appreciated that the invention is not limited to such embodiments and may generally be implemented in any type of RAN configured to transmit and / or receive according to one or more RATs (Radio Access Technologies).

[0040] In LTE Rel-8, the eNB base station can configure the UE to send a power headroom...

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Abstract

Power headroom reports may be transmitted from a wireless terminal to a base station wherein a primary component carrier and at least one secondary component carrier are provided for uplink transmissions from the wireless terminal to the base station and wherein a respective component carrier index is assigned to each of the at least one secondary component carriers provided for the wireless terminal. Respective power headroom reports may be generated for the primary component carrier and for each of the at least one secondary component carriers, and a MAC control element may be generated including the power headroom reports for the primary and secondary component carriers. More particularly, the power headroom reports for each of the at least one secondary component carriers may be arranged in order of the component carrier indices for the respective secondary component carriers. The MAC control element including the power headroom reports for the primary and secondary component carriers may be transmitted from the wireless terminal to the base station over one of the component carriers. Related wireless terminals, and base stations are also discussed.

Description

Background technique [0001] The present invention relates to communications, and more particularly to radio communications networks and terminals. [0002] In a typical cellular radio system, wireless terminals (also called mobile stations and / or user equipment units (UE)) communicate via a radio access network (RAN) and one or more core networks. User equipment units may include mobile telephones ("cellular" telephones) and / or other processing devices with wireless communication capabilities, such as portable, miniature, hand-held, laptop computers, which exchange voice and / or data. [0003] The RAN covers a geographical area divided into cell areas, each served by a base station such as a radio base station (RBS), also called a "NodeB" in some networks or an enhanced NodeB (eNodeB), which can be abbreviated "eNB". A cell area refers to a geographical area where radio coverage is provided by radio base station equipment at a base station site. The base station communicates...

Claims

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Application Information

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IPC IPC(8): H04W52/54H04W52/30H04W52/34H04W52/36
CPCH04W52/367H04W52/30H04W52/346H04W52/34H04W52/54H04W52/365H04W72/21H04W72/0453
Inventor L.博斯特伦D.拉森D.格施滕贝格尔R.巴尔德迈尔H.韦曼
Owner TELEFON AB LM ERICSSON (PUBL)
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