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Method for scheduling cross carrier in different up-down link matching carrier aggregations

A technology of cross-carrier scheduling and carrier aggregation, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as inability to send authorization, inability to perform scheduling, etc.

Active Publication Date: 2014-07-30
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

like Figure 5 (b) As shown in (d), if the scheduling subframe corresponding to the scheduled subframe is an uplink subframe according to the timing relationship, since the scheduling subframe is an uplink subframe, the grant cannot be sent, so scheduling cannot be performed

Method used

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  • Method for scheduling cross carrier in different up-down link matching carrier aggregations
  • Method for scheduling cross carrier in different up-down link matching carrier aggregations
  • Method for scheduling cross carrier in different up-down link matching carrier aggregations

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Embodiment Construction

[0041] The present invention is suitable for full-duplex scenarios. For the seven uplink and downlink subframe allocations of configuration 0-configuration 6, since the mixed allocation has a great influence on the specification and the design complexity is high, the present invention will be based on aggregated carriers. The assumption of using the same switching point period. It is assumed that different CCs are only configured with combinations of subframe allocations of 5ms or 10ms. Meanwhile, the CC carrying the scheduling grant is called the scheduling CC, and the CC whose scheduling grant is transmitted on other CCs is called the scheduled CC.

[0042] For cross-carrier scheduling of conflicting subframes, different control channels will be used to distinguish cross-carrier scheduling (the control information of this carrier is carried by other carriers, such as Figure 2a shown) and cross-subframe scheduling (the control information of a subframe of this carrier is ca...

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Abstract

The invention provides a method for scheduling cross carrier in different up-down link matching carrier aggregations. The method comprises the following steps: A, judging whether the sub-frame of the scheduled component carrier is consistent with the up-down links of the sub-frame corresponding to a scheduling component carrier, if so, carrying out step B, and otherwise, carrying out step C; B, scheduling the scheduled component cross carrier based on the timing relationship of the scheduling component carrier, but transmitting based on the position of the scheduling component carrier, and ending the process by PHICH (Physical Hybrid-ARQ (Automatic Repeat Request) Indicator Channel); C, transmitting cross sub-frame scheduling downlink control indication (DCI) on the physical downlink control channel (PDCCH) of the scheduling componenet carrier offsetting at a time before the sub-frame, and transmitting the carrier scheduling and cross carrier scheduling DCI on the enhanced physical downlink control channel (e-PDCCH).

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to carrier aggregation technology, and in particular to a cross-carrier scheduling method in carrier aggregation with different uplink and downlink allocation ratios. Background technique [0002] In the Long Term Evolution Advanced Project Time Division Duplex Release 10 (LTE-A TDD Release 10), the concept of carrier aggregation is introduced to support wider bandwidth transmission, that is, two or more carriers are aggregated together to support LTE-A transmission bandwidth greater than 20MHz transmission. For Release10 carrier aggregation TD, only intra-band scenarios are supported. This frequency band is the available radio resource spectrum resources determined by the International Telecommunication Union. If different uplink and downlink ratios are used, the uplink and Serious interference occurs during downlink transmission and reception, so the aggregat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/12
Inventor 鲁智陈哲池连刚
Owner POTEVIO INFORMATION TECH CO LTD
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