Method and apparatus for coexistence of multiple operating entity systems

Patent metadata

Field	Value
Publication number	US-9357554-B2
Application number	US-200913255825-A
Country	US
Kind code	B2
Filing date	Mar 11, 2009
Priority date	Mar 11, 2009
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

The present invention discloses a method and an apparatus for coexistence of multiple operating entity systems, where the method includes: setting part or all of bandwidths of an operating entity in uplink timeslots of a downlink carrier frequency interference region to be in an idle state. By using the present invention, the uplink timeslots of the operating entity in the downlink carrier frequency interference region are set to be in an idle state and do not transmit an uplink transmit signal any longer, which prevents a downlink transmit signal of another operating entity from interfering with an uplink transmit signal of the operating entity.

First claim

What is claimed is:

1. A method for coexistence of multiple operating entity systems, comprising:
providing, by an operating entity, a subframe comprising a downlink (DL) timeslot for downlink transmission, an uplink (UL) timeslot for uplink transmission, and a guard period (GP) between the DL timeslot and the UL timeslot; and
setting the uplink timeslot of the subframe of the operating entity in a downlink carrier frequency interference region to be in an idle state so that a device does not transmit an uplink transmit signal to the operating entity in the subframe,
wherein networks of the operating entity and an adjacent operating entity are asynchronous and adopt subframes of equal lengths in different networks, and
wherein the operating entity and the adjacent operating entity comprise different number of component carriers including adjacent carrier frequencies from base stations in different operating entities.

2. The method of claim 1 , wherein the downlink carrier frequency interference region is part or all of bandwidths of adjacent carrier frequencies between the operating entity and another operating entity.

3. The method of claim 2 , wherein the adjacent carrier frequencies are adjacent carrier frequencies in carrier aggregation.

4. The method of claim 1 , wherein the downlink carrier frequency interference region is part or all of bandwidths at edges of geographically adjacent cells between the operating entity and another operating entity.

5. The method of claim 1 comprising:
transmitting an uplink transmit signal through an uplink carrier frequency, wherein the uplink transmit signal originally needs to be sent in an uplink timeslot of the downlink carrier frequency interference region.

6. An apparatus for coexistence of multiple operating entity systems, comprising:
a setting unit, configured to provide a subframe comprising a downlink (DL) timeslot for downlink transmission, an uplink (UL) timeslot for uplink transmission, and a guard period (GP) between the DL timeslot and the UL timeslot; and
the setting unit further configured to set uplink timeslot of the subframe of the operating entity in a downlink carrier frequency interference region to be in an idle state so that a device does not transmit an uplink transmit signal to the operating entity in the subframe,
wherein networks of the operating entity and an adjacent operating entity are asynchronous and adopt subframes of equal lengths in different networks, and
wherein the operating entity and the adjacent operating entity comprise different number of component carriers including adjacent carrier frequencies from base stations in different operating entities.

7. The apparatus of claim 6 , wherein the downlink carrier frequency interference region is part or all of bandwidths of adjacent carrier frequencies between the operating entity and another operating entity in different countries.

8. The apparatus of claim 7 , wherein the adjacent carrier frequencies are adjacent carrier frequencies in carrier aggregation.

9. The apparatus of claim 6 , wherein the downlink carrier frequency interference region is part or all of bandwidths at edges of geographically adjacent cells between the operating entity and another operating entity.

10. The apparatus of claim 6 comprising:
an uplink signal transmitting unit, configured to transmit an uplink transmit signal through an uplink carrier frequency, wherein the uplink transmit signal originally needs to be sent in an uplink timeslot of the downlink carrier frequency interference region.

11. The method of claim 2 , comprising:
transmitting an uplink transmit signal through an uplink carrier frequency, wherein the uplink transmit signal originally needs to be sent in an uplink timeslot of the downlink carrier frequency interference region.

12. The method of claim 3 , comprising:
transmitting an uplink transmit signal through an uplink carrier frequency, wherein the uplink transmit signal originally needs to be sent in an uplink timeslot of the downlink carrier frequency interference region.

13. The method of claim 4 , comprising:
transmitting an uplink transmit signal through an uplink carrier frequency, wherein the uplink transmit signal originally needs to be sent in an uplink timeslot of the downlink carrier frequency interference region.

14. The apparatus of claim 7 , comprising:
an uplink signal transmitting unit, configured to transmit an uplink transmit signal through an uplink carrier frequency, wherein the uplink transmit signal originally needs to be sent in an uplink timeslot of the downlink carrier frequency interference region.

15. The apparatus of claim 8 , comprising:
an uplink signal transmitting unit, configured to transmit an uplink transmit signal through an uplink carrier frequency, wherein the uplink transmit signal originally needs to be sent in an uplink timeslot of the downlink carrier frequency interference region.

16. The apparatus of claim 9 , comprising:
an uplink signal transmitting unit, configured to transmit an uplink transmit signal through an uplink carrier frequency, wherein the uplink transmit signal originally needs to be sent in an uplink timeslot of the downlink carrier frequency interference region.

17. A method for reducing interference, comprising:
determining, by a base station in a first operating entity, whether there is an edge frequency that causes interference when carrier frequencies of the first operating entity and a second operating entity are adjacent;
providing, by a device in the first operating entity, a subframe comprising a downlink (DL) timeslot for downlink transmission, an uplink (UL) timeslot for uplink transmission, and a guard period (GP) between the DL timeslot and the UL timeslot; and
setting uplink timeslot of the subframe in a downlink carrier frequency interference region to be in an idle state so that the device does not transmit an uplink transmit signal to the base station in the subframe,
wherein the first and second operating entities comprises base stations that are asynchronous and adopt subframes of equal lengths in different networks, and
wherein the first and second operating entities comprise different number of component carriers including adjacent carrier frequencies from base stations in different operating entities.

18. The method of claim 17 , wherein the first and second operating entities adopt different frequency bands.

19. The method of claim 17 , wherein the first and second operating entities are synchronous in respective internal networks.

Assignees

• Wan Lei
• Hou Yunzhe
• Ren Xiaotao
• Lv Yongxia
• Li Yang
• Huawei Tech Co Ltd

Inventors

• Wan Lei
• Hou Yunzhe
• Ren Xiaotao
• Lv Yongxia
• Li Yang

Classifications

• H04W72/541 Primary

  using the level of interference · CPC title

• H04W16/10

  Dynamic resource partitioning · CPC title

• H04W72/082 Primary

  Electricity · mapped topic