System and Method for a Long-Term Evolution (LTE)-Compatible Subframe Structure for Wideband LTE

Patent metadata

Field	Value
Publication number	US-2020295890-A1
Application number	US-202016892070-A
Country	US
Kind code	A1
Filing date	Jun 3, 2020
Priority date	May 29, 2015
Publication date	Sep 17, 2020
Grant date	—

Abstract

A system and method of scheduling transmissions. A wireless device such as an eNodeB (eNB) may schedule a transmission of a wideband (WB) signal on a micro-frame selected from a plurality of WB micro-frames of a WB carrier. A narrowband (NB) subframe may span a portion of the selected WB micro-frame in the frequency-domain, and the selected WB micro-frame may overlap at least a portion of the NB subframe in the time-domain. The WB signal and an NB signal may be transmitted over the WB micro-frame and the NB subframe in accordance with a first numerology and a second numerology, respectively. A WB subframe may be divided into a plurality of micro-frames. The transmission direction of the WB micro-frame may be scheduled according to a transmission rule based on the contents of a payload in the NB subframe.

First claim

What is claimed:

1 . A method comprising:
selecting, by a base station, a first micro-frame from a plurality of micro-frames in a subframe of a first carrier for a first transmission, wherein the selected first micro-frame having a time duration that covers a first symbol of a second carrier in a time-domain; scheduling, by the base station, the first transmission in the time duration of the selected first micro-frame in accordance with a signaling carried in the first symbol of the second carrier, wherein the first transmission is scheduled as a downlink transmission when the signaling is a downlink signaling, and wherein the first transmission is scheduled as an uplink transmission when the signaling is an uplink signaling; and signaling, by the base station, scheduling information of the first transmission to a user equipment (UE).

2 . The method of claim 1 , wherein a combined duration of the plurality of micro-frames is equal to a duration of the subframe.

3 . The method of claim 1 , wherein the second carrier has a bandwidth overlapping a portion of a bandwidth of the first carrier in a frequency domain.

4 . The method of claim 1 , further comprising:
transmitting, by the base station, configuration information of the plurality of micro-frames of the first carrier to the UE.

5 . The method of claim 1 , wherein the first carrier is associated with a first numerology and the second carrier is associated with a second numerology different than the first numerology.

6 . The method of claim 5 , wherein the first numerology and the second numerology comprise different subcarrier spacings.

7 . The method of claim 1 , wherein the first transmission is performed using a subcarrier spacing that is different than the signaling.

8 . A wireless device comprising:
a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to: select a first micro-frame from a plurality of micro-frames in a subframe of a first carrier for a first transmission, wherein the selected first micro-frame having a time duration that covers a first symbol of a second carrier in a time-domain; schedule the first transmission in the time duration of the selected first micro-frame in accordance with a signaling carried in the first symbol of the second carrier, wherein the first transmission is scheduled as a downlink transmission when the signaling is a downlink signaling, and wherein the first transmission is scheduled as an uplink transmission when the signaling is an uplink signaling; and signal scheduling information of the first transmission to a user equipment (UE).

9 . The wireless device of claim 8 , wherein the second carrier has a bandwidth overlapping portion of a bandwidth of the first carrier in a frequency domain.

10 . The wireless device of claim 8 , wherein the first carrier is associated with a first numerology and the second carrier is associated with a second numerology different than the first numerology.

11 . A method comprising:
receiving, by a user equipment (UE), signaling that schedules a first transmission in a time duration of a first micro-frame selected from a plurality of micro-frames in a subframe of a first carrier, the time duration of the first micro-frame covering a first symbol of a second carrier in a time-domain, wherein the first transmission is a downlink transmission when the first symbol of the second carrier is configured to carry a downlink signaling, and the first transmission is an uplink transmission when the first symbol of the second carrier is configured to carry an uplink signaling.

12 . The method of claim ii, wherein a combined duration of the plurality of micro-frames is equal to a duration of the subframe.

13 . The method of claim ii, further comprising:
receiving, by the UE, configuration information of the first carrier.

14 . The method of claim 13 , wherein the configuration information comprises bandwidth, subcarrier spacing, or a center carrier frequency of the first carrier.

15 . The method of claim ii, wherein the second carrier has a bandwidth overlapping a portion of a bandwidth of the first carrier in a frequency domain.

16 . The method of claim ii, wherein the first carrier is associated with a first numerology and the second carrier is associated with a second numerology different than the first numerology.

17 . The method of claim 16 , wherein the first numerology and the second numerology comprise different subcarrier spacings.

18 . A wireless device comprising:
a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to: signaling that schedules a first transmission in a time duration of a first micro-frame selected from a plurality of micro-frames in a subframe of a first carrier, the time duration of the first micro-frame covering a first symbol of a second carrier in a time-domain, wherein the first transmission is a downlink transmission when the first symbol of the second carrier is configured to carry a downlink signaling, and the first transmission is an uplink transmission when the first symbol of the second carrier is configured to carry an uplink signaling.

19 . The wireless device of claim 18 , wherein the second carrier has a bandwidth overlapping a portion of a bandwidth of the first carrier in a frequency domain.

20 . The wireless device of claim 18 , wherein the first carrier is associated with a first numerology and the second carrier is associated with a second numerology different than the first numerology.

Assignees

• Futurewei Technologies Inc

Inventors

• Sartori Philippe
• Desai Vipul
• Cheng Qian
• Krzymien Lukasz
• Cozzo Carmela
• Xiao Weimin
• Soong Anthony C K

Classifications

• H04W72/23

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

• H04L5/0007 Primary

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04L5/0064

  Rate requirement of the data, e.g. scalable bandwidth, data priority · CPC title

• H04L5/0005 Primary

  Time-frequency · CPC title

• H04L5/0092

  Indication of how the channel is divided · CPC title