Method and apparatus for transmitting base station data, and device

Patent metadata

Field	Value
Publication number	US-10812232-B2
Application number	US-201916728429-A
Country	US
Kind code	B2
Filing date	Dec 27, 2019
Priority date	Jun 29, 2017
Publication date	Oct 20, 2020
Grant date	Oct 20, 2020

Abstract

Embodiments of this application disclose a method for scheduling a terminal. The method includes the following operations: receiving a precoding matrix indication PMI value and reference signal received power RSRP that are sent by user equipment; determining, based on the PMI value, grouping of a network area corresponding to the user equipment; and determining, based on the RSRP, a network area in which the user equipment is located. This application has the advantage of avoiding interference between network areas.

First claim

What is claimed is:

1. A method for scheduling a terminal, comprising:
receiving, by a first base station in a joint scheduling base station group, a precoding matrix indication (PMI) value and reference signal received power (RSRP) that are sent by user equipment (UE);
determining, by a remote radio of the first base station in the joint scheduling base station group, based on the RSRP, a network area to which the UE belongs;
if the UE is served by the first base station in the joint scheduling base station group, allocating, by the first base station in the joint scheduling base station group, an equivalent channel that corresponds to the first base station and that is in a first equivalent channel group to the UE based on the PMI value;
if the UE belongs to an overlapped area of the first base station and a second base station that are in the joint scheduling base station group, jointly allocating, by the first base station and the second base station that are in the joint scheduling base station group, an equivalent channel that corresponds to the first base station and the second base station and that is in a second equivalent channel group to the UE based on the PMI value, stopping, by the first base station, transmitting data on the equivalent channel that corresponds to the first base station and that is in the first equivalent channel group, and jointly stopping, by the first base station and the second base station, sending data on another equivalent channel corresponding to the second base station, wherein
the first equivalent channel group and the second equivalent channel group have different radio frequency channels.

2. The method according to claim 1 , wherein if there are four port numbers for the UE,
when PMI=0, a first equivalent channel in the first channel group and allocated to the user equipment is:

[

T
0

…

T

2
⁢
M

-
1

]

⁢
V
⁢

1
2

⁡

[

1

1

1

1

]

=

[

T
0

…

T

2
⁢
M

-
1

]

⁢

1

2

⁡

[

1

1

0

0

1

1

0

0

⋮

]

,
wherein

T 2M-1 is a (2M) th network area, and V is a port mapping matrix of the user equipment;
when PMI=2, a second equivalent channel in the first channel group and allocated to the user equipment is:

[

T
0

…

T

2
⁢
M

-
1

]

⁢
V
⁢

1
2

⁡

[

Assignees

• Huawei Tech Co Ltd

Inventors

• Wang Libiao
• Jin Fan
• Chen Wei

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/21

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

• H04B7/024 Primary

  Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems · CPC title

• H04W16/28

  using beam steering · CPC title

• H04B7/0456

  Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting · CPC title