Method for controlling antenna and electronic device using same

Patent metadata

Field	Value
Publication number	US-2017366235-A1
Application number	US-201715581645-A
Country	US
Kind code	A1
Filing date	Apr 28, 2017
Priority date	Jun 17, 2016
Publication date	Dec 21, 2017
Grant date	—

Abstract

Various exemplary embodiments of the present disclosure relate to a device and a method for controlling a plurality of antennas in an electronic device. The electronic device may include: a plurality of antennas; a communication circuit configured to be connected to the plurality of antennas; and at least one processor, wherein the processor may be configured to: set a multi-antenna service using a second number of antennas; activate the second number of antennas among the plurality of antennas when a time to transmit channel state information comes; transmit channel state information on the second number of antennas to a network device; and switch to activate a first number of antennas among the plurality of antennas and the second number of antennas may include a greater number of antennas than the first number of antennas. Other exemplary embodiments are possible.

First claim

What is claimed is:

1 . An electronic device comprising:
a plurality of antennas; a communication circuit connected to the plurality of antennas; and at least one processor configured to:
set a multi-antenna service using a second number of antennas;
activate the second number of antennas among the plurality of antennas if a transmission period of channel state information is elapsed;
control the communication circuit to transmit the channel state information on the second number of antennas to a network device; and
activate a first number of antennas among the plurality of antennas in response to transmitting the channel state information,
wherein the second number of antennas comprise a greater number of antennas than the first number of antennas.

2 . The electronic device of claim 1 , wherein the at least one processor is further configured to set the multi-antenna service using the second number of antennas while the first number of antennas are activated among the plurality of antennas.

3 . The electronic device of claim 1 , wherein the at least one processor is further configured to set the multi-antenna service using the second number of antennas through a radio resource control (RRC) connection procedure with the network device.

4 . The electronic device of claim 1 , wherein the at least one processor is further configured to:
determine whether to activate the second number of antennas based on the channel state information if the transmission period of channel state information is elapsed; and activate the second number of antennas among the plurality of antennas in response to determination that to activate the second number of antennas.

5 . The electronic device of claim 4 , wherein the at least one processor is further configured to control the communication circuit to transmit the channel state information on the first number of antennas to the network device if the at least one processor determines not to activate the second number of antennas.

6 . The electronic device of claim 1 , wherein the at least one processor is further configured to:
identify a received signal strength if the transmission period of channel state information is elapsed; determine whether to activate the second number of antennas based on the received signal strength; and activate the second number of antennas among the plurality of antennas if the at least one processor determines to activate the second number of antennas.

7 . The electronic device of claim 6 , wherein the at least one processor is further configured to control the communication circuit to transmit the channel state information on the first number of antennas to the network device if the at least one processor determines not to activate the second number of antennas.

8 . The electronic device of claim 1 , wherein the at least one processor is further configured to:
identify a layer of a data stream when a downlink resource is allocated; determine whether to activate the second number of antennas based on the layer of the data stream; activate the second number of antennas among the plurality of antennas if the at least one processor determines to activate the second number of antennas; and receive data using the second number of antennas.

9 . The electronic device of claim 8 , wherein the at least one processor is further configured to receive data using the first number of antennas if the at least one processor determines not to activate the second number of antennas.

10 . The electronic device of claim 8 , wherein the at least one processor is further configured to identify the layer of the data stream in a physical downlink control channel (PCDDH).

11 . An operating method of an electronic device, the method comprising:
setting a multi-antenna service using a second number of antennas among a plurality of antennas functionally connected to the electronic device; activating the second number of antennas among the plurality of antennas if a transmission period of channel state information is elapsed; transmitting the channel state information on the second number of antennas to a network device; and activating a first number of antennas among the plurality of antennas in response to transmitting the channel state information, wherein the second number of antennas comprise a greater number of antennas than the first number of antennas.

12 . The method of claim 11 , wherein setting the multi-antenna service comprises, arranging with the network device, setting the multi-antenna service using the second number of antennas while the first number of antennas are activated among the plurality of antennas.

13 . The method of claim 11 , wherein setting the multi-antenna service comprises setting the multi-antenna service using the second number of antennas through a radio resource control (RRC) connection procedure with the network device.

14 . The method of claim 11 , wherein activating the second number of antennas comprises:
determining whether to activate the second number of antennas based on the channel state information if the transmission period of channel state information is elapsed; and activating the second number of antennas among the plurality of antennas in response to determination that to activate the second number of antennas.

15 . The method of claim 14 , further comprising transmitting the channel state information on the first number of antennas to the network device if determining not to activate the second number of antennas.

16 . The method of claim 11 , wherein activating the second number of antennas comprises:
identifying a received signal strength if the transmission period of channel state information is elapsed; determining whether to activate the second number of antennas based on the received signal strength; and activating the second number of antennas among the plurality of antennas if determining to activate the second number of antennas.

17 . The method of claim 16 , further comprising transmitting the channel state information on the first number of antennas to the network device if determining not to activate the second number of antennas.

18 . The method of claim 11 , wherein switching to activate the first number of antennas comprises:
selecting the first number of antennas from the second number of antennas; and deactivating antennas that are not selected as the first number of antennas among the second number of antennas.

19 . The method of claim 11 , further comprising:
identifying a layer of a data stream if a downlink resource is allocated; determining whether to activate the second number of antennas based on the layer of the data stream; activating the second number of antennas among the plurality of antennas in response to determination that to activate the second number of antennas; and receiving data using the second number of antennas.

20 . The method of claim 19 , further comprising receiving data using the first number of antennas if determining not to activate the second number of antennas.

Assignees

• Samsung Electronics Co Ltd

Inventors

• KIM Dooyoung
• Min Moonsik
• Lee Hyoungjoo
• Lim Chaeman

Classifications

• H04W72/23

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

• H04W72/542

  using measured or perceived quality · CPC title

• H04B7/0404

  the mobile station comprising multiple antennas, e.g. to provide uplink diversity · CPC title

• H04B7/0413 Primary

  MIMO systems · CPC title

• H04B7/0693

  switching off a diversity branch, e.g. to save power · CPC title