Interference management for adaptive TDD with frequency domain separations

Patent metadata

Field	Value
Publication number	US-9768943-B2
Application number	US-201615052821-A
Country	US
Kind code	B2
Filing date	Feb 24, 2016
Priority date	May 11, 2012
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

A method of wireless communications includes adapting to downlink/uplink resource allocations. In particular, the downlink/uplink communications may be adjusted according to time division duplexed (TDD) configurations of serving and neighbor cells.

First claim

What is claimed is:

1. A method of wireless communication within a carrier aggregation configuration, comprising:
frequency division multiplexing uplink transmissions and downlink transmissions within a component carrier from a plurality of component carriers in a time division duplexed (TDD) network, the uplink transmissions and the downlink transmissions spatially multiplexed so that the uplink transmissions and the downlink transmissions are transmitted on a same carrier and are allocated to different frequency regions of the same carrier, the uplink transmissions allocated to upper edge frequencies and lower edge frequencies, the downlink transmissions allocated to middle frequencies, a guard band allocated between an uplink region and a downlink region, and the downlink transmissions do not use at least a first symbol in a subframe.

2. The method of claim 1 , in which the uplink transmissions do not use at least one of a first set of symbols in the subframe.

3. An apparatus for wireless communication, comprising:
a memory; and
at least one processor coupled to the memory, the at least one processor configured:
to frequency division multiplex uplink transmissions and downlink transmissions within a component carrier from a plurality of component carriers in a time division duplexed (TDD) network, the uplink transmissions and the downlink transmissions spatially multiplexed so that the uplink transmissions and the downlink transmissions are transmitted on a same carrier and are allocated to different frequency regions of the same carrier, the uplink transmissions allocated to upper edge frequencies and lower edge frequencies, the downlink transmissions allocated to middle frequencies, a guard band allocated between an uplink region and a downlink region, and the downlink transmissions do not use at least a first symbol in a subframe.

4. The apparatus of claim 3 , in which the uplink transmissions do not use at least one of a first set of symbols in the subframe.

5. A non-transitory computer-readable medium having non-transitory program code recorded thereon for wireless communication in a wireless network, the program code comprising:
program code to frequency division multiplex uplink transmissions and downlink transmissions within a component carrier from a plurality of component carriers in a time division duplexed (TDD) network, the uplink transmissions and the downlink transmissions spatially multiplexed so that the uplink transmissions and the downlink transmissions are transmitted on a same carrier and are allocated to different frequency regions of the same carrier, the uplink transmissions allocated to upper edge frequencies and lower edge frequencies, the downlink transmissions allocated to middle frequencies, a guard band allocated between an uplink region and a downlink region, and the downlink transmissions do not use at least a first symbol in a subframe.

6. The non-transitory computer-readable medium of claim 5 , in which the uplink transmissions do not use at least one of a first set of symbols in the subframe.

7. An apparatus for wireless communication, comprising:
means for activating a component carrier; and
means for frequency division multiplexing uplink transmissions and downlink transmissions within the component carrier from a plurality of component carriers in a time division duplexed (TDD) network, the uplink transmissions and the downlink transmissions spatially multiplexed so that the uplink transmissions and the downlink transmissions are transmitted on a same carrier and are allocated to different frequency regions of the same carrier, the uplink transmissions allocated to upper edge frequencies and lower edge frequencies, the downlink transmissions allocated to middle frequencies, a guard band allocated between an uplink region and a downlink region, and the downlink transmissions do not use at least a first symbol in a subframe.

8. The apparatus of claim 7 , in which the uplink transmissions do not use at least one of a first set of symbols in the subframe.

Assignees

• Qualcomm Inc

Inventors

• Xu Hao
• Chen Wanshi
• Gaal Peter
• Geirhofer Stefan

Classifications

• H04W72/541

  using the level of interference · CPC title

• H04W72/27

  between access points · CPC title

• H04W72/23

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

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/082

  Electricity · mapped topic