Antenna Configuration and Transmission Mode Signaling In Wireless Communication System
A wireless communication infrastructure entity including a transceiver communicably coupled to a controller configured to generate a handover message having a multi-bit field, the controller configured to set a value of the multi-bit field, the value of the multi-bit field jointly encoded to indicate both a transmission mode to be used after handover and an antenna configuration of a target
1 . A wireless communication infrastructure entity, the entity comprising:
a transceiver;
a controller communicably coupled to the transceiver,
the controller configured to generate a message having a multi-bit field,
the controller configured to set a value of the multi-bit field,
the value of the multi-bit field jointly encoded over transmission mode and antenna configuration information,
transmission mode is specific to a link between a wireless communication infrastructure entity and a user terminal, and antenna configuration is specific to the wireless communication infrastructure entity.
2 . The entity of claim 1 , every bit state in the value of the multi-bit field depends on both transmission mode and antenna configuration.
3 . The entity of claim 2 , the transmission mode is specific to a link between the wireless communication infrastructure entity that generates the message and the user terminal, and the antenna configuration is specific to the wireless communication infrastructure entity that generates the message.
4 . The entity of claim 2 ,
the message is a handover message,
the transmission mode is specific to a link between a target wireless communication infrastructure entity and the user terminal after handover, and the antenna configuration is specific to the target wireless communication infrastructure entity after handover.
5 . The wireless entity of claim 4 , the controller configured to set the value of the multi-bit field to indicate that the transmission mode to be used after handover and the antenna configuration of the target wireless communication infrastructure entity are the same as a transmission mode and an antenna configuration of a source wireless communication infrastructure entity.
6 . The wireless entity of claim 2 , the controller configured to set the value of the multi-bit field to indicate a default transmission mode and a default antenna configuration.
7 . The wireless entity of claim 6 ,
the message is a handover message,
the controller configured to set the value of the multi-bit field to indicate that a transmission mode to be used after handover and an antenna configuration of a target wireless communication infrastructure entity are the same as a transmission mode and an antenna configuration of a source wireless communication infrastructure entity.
8 . The wireless entity of claim 1 , the controller configured to set the value of the multi-bit field to indicate a default transmission mode and an antenna configuration.
9 . The wireless entity of claim 8 , the default transmission mode is diversity transmission mode.
10 . A wireless communication user terminal, the terminal comprising:
a transceiver;
a controller communicably coupled to the transceiver,
the controller configured to decode transmission mode and antenna configuration information from a message received by the transceiver,
the transmission mode and antenna configuration information is jointly encoded in a multi-bit field value of the message wherein every bit state of the multi-bit value depends on both transmission mode and antenna configuration,
transmission mode is specific to a link between the wireless communication user terminal and a wireless communication infrastructure entity, and antenna configuration is specific to the wireless communication infrastructure entity.
11 . The terminal of claim 10 , transmission mode is specific to a link between the wireless communication user terminal and a wireless communication infrastructure entity that generates the message, and the antenna configuration is specific to the wireless communication infrastructure entity that generates the message.
12 . The terminal of claim 10 ,
the message is a handover message,
the transmission mode is specific to a link between a target wireless communication infrastructure entity and the wireless communication user terminal after handover, and the antenna configuration is specific to the target wireless communication infrastructure entity after handover.
13 . The terminal of claim 12 , the multi-bit field value indicates that the transmission mode to be used after handover and the antenna configuration of the target wireless communication infrastructure entity are the same as a transmission mode and an antenna configuration of a source wireless communication infrastructure entity.
14 . The terminal of claim 12 , the multi-bit field value indicates a default transmission mode and a default antenna configuration.
15 . The terminal of claim 14 ,
the message is a handover message,
the multi-bit field value indicates that the transmission mode to be used after handover and the antenna configuration of the target wireless communication infrastructure entity are the same as a transmission mode and an antenna configuration of a source wireless communication infrastructure entity.
16 . The terminal of claim 10 , the multi-bit field value indicates a default transmission mode and an antenna configuration.
17 . The terminal of claim 16 , the default transmission mode is diversity transmission mode.