ES2639104T3

5G,4G

Title

Not Available

Application Number:

ES20070758814T

Publication Date:

25-10-2017

Current Assignee:

INTEL CORP

Family ID:

38522773

Application Date:

19-03-2007

Declaring Company:

APPLE INC , INTEL CORP

Publication Country:

US

Priority Date:

20-03-2006

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Title

Not Available

Application Number:

ES20070758814T

Family ID:

38522773

Publication Country:

US

Publication Date:

25-10-2017

Application Date:

19-03-2007

Priority Date:

20-03-2006

Current Assignee:

INTEL CORP

Declaring Company:

APPLE INC , INTEL CORP

View on Espacenet goto-link

Abstract  Abstract

A method at a base station in a wireless access network (100), for assigning time-frequency units of a downlink sub-frame (103) to user stations (104, 106), the wireless access network being a network of multiple access by orthogonal frequency division, OFDMA, whose method comprises: receiving a feedback indicative of a state of the channel that is transmitted from at least some of the user stations (104), classifying each of the user stations (104, 106) on the basis of feedback, where the classification comprises classifying user stations (104, 106) with a known channel status and that have provided feedback as closed loop user stations (104) and classifying user stations with an unknown channel status, due to a lack of such feedback as open-loop user stations (106); assign at least some contiguous groups of subcarriers (204) of the downlink subframe from available contiguous groups to closed loop user stations (104) by assigning the same contiguous groups of subcarriers (204) to the closed loop user stations (104) for a plurality of OFDMA symbols of the downlink sub-frame; and assign the remaining groups of data subcarriers (206) of the downlink subframe to the open loop user stations (106) for each OFDMA symbol of the downlink subframe.

Note:

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