IP Library › Granted Patent US 9,084,258

Granted Patent B2

US 9,084,258 · App. 13/820,257 · Granted Jul 14, 2015

Dynamic sub-frame configuration method and apparatus in time division duplex system

Inventors: Liujun Hu (Shenzhen, CN); Feng Bi (Shenzhen, CN); Changqing Zhu (Shenzhen, CN)

Assignee: ZTE CORPORATION

H04W72/0446 H04L5/0003 H04L5/0044 H04L5/0053 H04L27/2601 H04W16/10

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Quick Facts

Patent No.: US 9,084,258
App. No.: 13/820,257
Granted: Jul 14, 2015
Kind: B2

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Abstract

The present application discloses a dynamic sub-frame configuration method in the TDD system. The method includes: in the case that the uplink and downlink sub-frame configuration of a cell and the uplink and downlink sub-frame configuration of its neighboring cell are different in the configuration of a sub-frame, a part of resources on the sub-frame are made to be silent for the cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for cell are made to be silent for the neighboring cell; or, a part of resources on the sub-frame are made to be silent for the neighboring cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for the neighboring cell are made to be silent for the cell. The present application further provides a dynamic sub-frame configuration apparatus in the TDD system. Not only can the problem that inter-cell interference is introduced during sub-frame switching in the TDD system be solved, but also the normal uplink and downlink measurement can be guaranteed, without affecting ACK/NACK feedback and HARQ process, and meantime the frequency spectrum utilization ratio is increased.

Claims (45)

1. A dynamic sub-frame configuration method in a Time Division Duplex (TDD) method, comprising:

in the case that the uplink and downlink sub-frame configuration of a cell and the uplink and downlink sub-frame configuration of its neighboring cell are different in the configuration of a sub-frame,

silencing resources in a set timeslot and/or a set bandwidth on the sub-frame for the cell, and silencing resources on the sub-frame for the neighboring cell corresponding to the resources not silenced on the sub-frame for the cell; alternatively, silencing the resources in the set timeslot and/or the set bandwidth on the sub-frame for the neighboring cell, and silencing the resources on the sub-frame for the cell corresponding to the resources not silenced on the sub-frame for the neighboring cell.

2. The method according to claim 1 , further comprising: when the cell and/or the neighboring cell need/needs to transmit information on the sub-frame, transmitting the information only through their respective resources not silenced on the sub-frame.

3. The method according to claim 2 , wherein silencing the resources in the set timeslot comprises:

silencing the resources in a first timeslot of the sub-frame for the cell, and silencing the resources in a second timeslot of the sub-frame for the neighboring cell; or

silencing the resources in the second timeslot of the sub-frame for the cell, and silencing the resources in the first timeslot of the sub-frame for the neighboring cell.

4. The method according to claim 2 , wherein silencing the resources in the set timeslot and the set bandwidth comprises:

silencing the resources in a first or a second timeslot of the sub-frame within the set bandwidth for the cell, and silencing the resources on the sub-frame for the neighboring cell corresponding to the resources not silenced on the sub-frame for the cell; or

silencing the resources in the first or the second timeslot of the sub-frame within the set bandwidth for the neighboring cell, and silencing the resources on the sub-frame for the cell corresponding to the resources not silenced on the sub-frame for the neighboring cell.

5. The method according to claim 2 , wherein silencing the resources in the set timeslot and the set bandwidth comprises:

silencing the resources except control domain in a first timeslot of the sub-frame within the set bandwidth and the resources in a second timeslot of the sub-frame within the set bandwidth for the cell, and silencing the resources on the sub-frame for the neighboring cell corresponding to the resources not silenced on the sub-frame for the cell; or

silencing the resources except the control domain in the first timeslot of the sub-frame within the set bandwidth and the resources in the second timeslot of the sub-frame within the set bandwidth for the neighboring cell, and silencing the resources on the sub-frame for the cell corresponding to the resources not silenced on the sub-frame for the neighboring cell.

6. The method according to claim 2 , wherein silencing the resources in the set timeslot and the set bandwidth comprises:

presetting a first set bandwidth and a second set bandwidth;

silencing the resources except control domain in a first timeslot of the sub-frame within the first set bandwidth and the resources in a second timeslot of the sub-frame within the second set bandwidth for the cell, and silencing the resources on the sub-frame for the neighboring cell corresponding to the resources not silenced on the sub-frame for the cell; or

silencing the resources except the control domain in the first timeslot of the sub-frame within the first set bandwidth and the resources in the second timeslot of the sub-frame within the second set bandwidth for the neighboring cell, and silencing the resources on the sub-frame for the cell corresponding to the resources not silenced on the sub-frame for the neighboring cell.

7. The method according to claim 1 , wherein the quantity of the set bandwidth is one or more.

8. The method according to claim 1 , wherein silencing the resources in the set timeslot comprises:

silencing the resources in a first timeslot of the sub-frame for the cell, and silencing the resources in a second timeslot of the sub-frame for the neighboring cell; or

silencing the resources in the second timeslot of the sub-frame for the cell, and silencing the resources in the first timeslot of the sub-frame for the neighboring cell.

9. The method according to claim 1 , wherein silencing the resources in the set timeslot and the set bandwidth comprises:

10. The method according to claim 1 , wherein silencing the resources in the set timeslot and the set bandwidth comprises:

11. The method according to claim 1 , wherein silencing the resources in the set timeslot and the set bandwidth comprises:

presetting a first set bandwidth and a second set bandwidth;

12. A dynamic sub-frame configuration apparatus in a Time Division Duplex (TDD) apparatus, comprising: a first silencing unit and a second silencing unit, wherein in the case that the uplink and downlink sub-frame configuration of a cell and the uplink and downlink sub-frame configuration of its neighboring cell are different in the configuration of a sub-frame,

the first silencing unit is configured to silence resources in a set timeslot and/or a set bandwidth on the sub-frame for the cell, and the second silencing unit is configured to silence resources on the sub-frame for the neighboring cell corresponding to the resources on the sub-frame not silenced by the first silencing unit for the cell; or

the first silencing unit is configured to silence the resources in the set timeslot and/or the set bandwidth on the sub-frame for the neighboring cell, and the second silencing unit is configured to silence the resources on the sub-frame for the cell corresponding to the resources on the sub-frame not silenced by the first silencing unit for the neighboring cell.

13. The apparatus according to claim 12 , further comprising: a transmitting unit, wherein

the transmitting unit is configured to, when the cell and/or the neighboring cell need/needs to transmit information on the sub-frame, transmit the information only through their respective resources not silenced on the sub-frame.

14. The apparatus according to claim 12 , wherein the first silencing unit is configured to silence the resources in a first timeslot of the sub-frame for the cell, and the second silencing unit is configured to silence the resources in a second timeslot of the sub-frame for the neighboring cell; or

the first silencing unit is configured to silence the resources in the second timeslot of the sub-frame for the cell, and the second silencing unit is configured to silence the resources in the first timeslot of the sub-frame for the neighboring cell.

15. The apparatus according to claim 12 , wherein the first silencing unit is configured to silence the resources in a first or a second timeslot of the sub-frame within the set bandwidth for the cell, and the second silencing unit is configured to silence the resources on the sub-frame for the neighboring cell corresponding to the resources not silenced on the sub-frame for the cell; or

the first silencing unit is configured to silence the resources in the first or the second timeslot of the sub-frame within the set bandwidth for the neighboring cell, and the second silencing unit is configured to silence the resources on the sub-frame for the cell corresponding to the resources not silenced on the sub-frame for the neighboring cell.

16. The apparatus according to claim 12 , wherein the first silencing unit is configured to silence the resources except control domain in a first timeslot of the sub-frame within the set bandwidth and the resources in a second timeslot of the sub-frame within the set bandwidth for the cell, and the second silencing unit is configured to silence the resources on the sub-frame for the neighboring cell corresponding to the resources not silenced on the sub-frame for the cell; or

the first silencing unit is configured to silence the resources except the control domain in the first timeslot of the sub-frame within the set bandwidth and the resources in the second timeslot of the sub-frame within the set bandwidth for the neighboring cell, and the second silencing unit is configured to silence the resources on the sub-frame for the cell corresponding to the resources not silenced on the sub-frame for the neighboring cell.

17. The apparatus according to claim 12 , wherein a first set bandwidth and a second set bandwidth are preset,

wherein the first silencing unit is configured to silence the resources except control domain in a first timeslot of the sub-frame within the first set bandwidth and the resources in a second timeslot of the sub-frame within the second set bandwidth for the cell, and the second silencing unit is configured to silence the resources on the sub-frame for the neighboring cell corresponding to the resources not silenced on the sub-frame for the cell; or

the first silencing unit is configured to silence the resources except the control domain in the first timeslot of the sub-frame within the first set bandwidth and the resources in the second timeslot of the sub-frame within the second set bandwidth for the neighboring cell, and the second silencing unit is configured to silence the resources on the sub-frame for the cell corresponding to the resources not silenced on the sub-frame for the neighboring cell.

Assignments (2)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2021

From: ZTE CORPORATION

To: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Reel/Frame 056144/0080 →

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2013

From: HU, LIUJUN; BI, FENG; ZHU, CHANGQING

To: ZTE CORPORATION

Reel/Frame 029978/0272 →

Priority Claims (1)

CN 2010 1 0270199 · Sep 2, 2010 · national

Continuity (1)

Related Publication 20130155917A1 · Jun 20, 2013