Communication control method, wireless terminal, and base station
According to an embodiment, a communication control method includes: establishing, by a smart repeater (SR) wireless terminal capable of beamforming, a wireless connection to a base station, the SR wireless terminal controlling an SR device relaying wireless communication between the base station and a wireless terminal; and transmitting, by the base station, one or more SR control configurations used to control the SR device to the SR wireless terminal through wireless communication.
1 . A communication control method comprising:
establishing, by a repeater control wireless terminal, a wireless connection to a network node, the repeater control wireless terminal being configured to control a network controlled repeater configured to relay wireless communication between the network node and a wireless terminal; and
transmitting, by the network node to the repeater control wireless terminal through wireless communication, control timing information including a plurality of repeater control configurations applied to control the network controlled repeater at timings different from one another,
wherein the transmitting comprises transmitting, to the repeater control wireless terminal, the control timing information indicating an application a timing at which each of the plurality of repeater control configurations is applied.
2 . The communication control method according to claim 1 , wherein the wireless connection is a radio resource control (RRC) connection.
3 . The communication control method according to claim 1 , wherein the control timing information comprises information for activating relay transmission by the network controlled repeater.
4 . The communication control method according to claim 1 , wherein each of the plurality of repeater control configurations comprises beam configuration information to configure a transmission direction, a transmission weight, or a beam pattern for when the network controlled repeater performs directional transmission.
5 . The communication control method according to claim 1 , further comprising:
broadcasting, by the network node, support information indicating that the network node supports the repeater control wireless terminal; and
performing, by the repeater control wireless terminal not having established the wireless connection to the network node, an operation to establish the wireless connection to the network node in response to reception of the support information from the network node.
6 . The communication control method according to claim 1 , further comprising:
the plurality of repeater control configurations comprise repeater control configurations respectively associated with a plurality of synchronization signal blocks transmitted by the network node.
7 . The communication control method according to claim 1 , wherein the transmitting of the plurality of repeater control configurations comprises transmitting, to the repeater control wireless terminal, a Medium Access Control (MAC) Control Element (CE) comprising the plurality of repeater control configurations.
8 . The communication control method according to claim 1 , wherein the transmitting of the plurality of repeater control configurations comprises transmitting, as an information element, an RRC message comprising the plurality of repeater control configurations to the repeater control wireless terminal.
9 . A wireless terminal for performing wireless communication with a network node in a mobile communication system, the wireless terminal comprising:
a receiver configured to receive, from a network node through wireless communication, control timing information including a plurality of repeater control configurations applied to control a network controlled repeater at timings different from one another, the network controlled repeater configured to relay wireless communication between the network node and another wireless terminal; and
a circuitry configured to control the network controlled repeater based on the plurality of repeater control configurations,
wherein the receiver is configured to receive, from the network node, the control timing information indicating an application a timing at which each of the plurality of repeater control configurations is applied.
10 . A network node for performing wireless communication with a wireless terminal in a mobile communication system, the network node comprising:
a transmitter configured to transmit, to a wireless terminal through wireless communication, control timing information including a plurality of repeater control configurations applied to control a network controlled repeater at timings different from one another, the wireless terminal being configured to control the network controlled repeater configured to relay wireless communication between the network node and another wireless terminal, wherein
the transmitter is configured to transmit, to the wireless terminal, the control timing information indicating an application timing at which each of the plurality of repeater control configurations is applied.
11 . A chipset for a wireless terminal for performing wireless communication with a network node in a mobile communication system, the chipset configured to execute processing of:
receiving, from a network node through wireless communication, control timing information including a plurality of repeater control configurations applied to control a network controlled repeater at timings different from one another, the network controlled repeater configured to relay wireless communication between the network node and another wireless terminal;
controlling the network controlled repeater based on the plurality of repeater control configurations; and
receiving, from the network node, the control timing information indicating an application timing at which each of the plurality of repeater control configurations is applied.
12 . A mobile communication system comprising:
a network node; and
a repeater control wireless terminal configured to control a network controlled repeater configured to relay wireless communication between the network node and a wireless terminal,
wherein the repeater control wireless terminal is configured to establish a wireless connection to the network node, and
the network node is configured to:
transmit, to the repeater control wireless terminal through wireless communication, control timing information including a plurality of repeater control configurations applied to control the network controlled repeater at timings different from one another, and
transmit, to the repeater control wireless terminal, the control timing information indicating an application a timing at which each of the plurality of repeater control configurations is applied.
13 . A non-transitory computer-readable medium comprising, stored thereupon, computer program instructions for execution by a wireless terminal for performing wireless communication with a network node in a mobile communication system, the computer program instructions being configured to cause the wireless terminal to execute processing of:
receiving, from a network node through wireless communication, control timing information including a plurality of repeater control configurations applied to control a network controlled repeater at timings different from one another, the network controlled repeater configured to relay wireless communication between the network node and another wireless terminal;
controlling the network controlled repeater based on the plurality of repeater control configurations; and
receiving, from the network node, the control timing information indicating an application timing at which each of the plurality of repeater control configurations is applied.