Wireless communication device and method for controlling antenna array

A wireless communication device, comprising:

• an antenna array, including an antenna control unit;
• and
• a control circuit, wherein the wireless communication device sequentially establishes associations with a plurality of mobile devices, and the control circuit generates a plurality of characteristic parameter tables corresponding to the plurality of mobile devices, respectively, according to a plurality of association state information transmitted by the plurality of mobile devices,
• wherein when the wireless communication device receives a plurality of transmission request signals from the mobile devices, the control circuit determines whether to divide the mobile devices into a user group,
• when the wireless communication device receives the plurality of transmission request signals from the mobile devices, and the control circuit divides the mobile devices into the user group, the control circuit generates a multi-user antenna index of the antenna array based on the plurality of characteristic parameter tables, and simultaneously transmits a plurality of data streams corresponding to the mobile devices through the antenna array,
• when the wireless communication device receives the transmission request signals from the mobile devices, and the mobile devices are not divided into the user group, the control circuit generates a single-user antenna index of the antenna array based on the plurality of characteristic parameter tables, and transmits the data streams corresponding to the mobile devices one-by-one through the antenna array,
• when the mobile devices are divided into the user group, the wireless communication device operates in a multi-user multi-input multi-output mode, so as to simultaneously transmit the data streams corresponding to the mobile devices through the antenna array, and
• when the mobile devices are not divided into the user group, the wireless communication device operates in a single-user multi-input multi-output mode, so as to transmit the data streams corresponding to the mobile devices one-by-one through the antenna array,
• wherein the multi-user antenna index and the single-user antenna index are digital control signals having a plurality of bits,
• wherein the antenna array comprises a plurality of antenna elements, the antenna array is an antenna array with polarization diversity, the control circuit of the wireless communication device transmits the multi-user antenna index or the single-user antenna index to the antenna control unit, and the antenna control unit controls polarizations of the antenna elements according to the multi-user antenna index or the single-user antenna index.

A wireless communication system, communicating with a first mobile device and a second mobile device, the wireless communication system comprising:

• an antenna array, including an antenna control unit;
• and
• a control circuit, wherein the antenna array and the control circuit sequentially establishes associations with the first mobile device and the second mobile device, and the control circuit generates a first characteristic parameter table and a second characteristic parameter table corresponding to the first mobile device and the second mobile device, respectively, according to a plurality of association state information transmitted by the first mobile device and the second mobile device,
• wherein when the antenna array receives a plurality of transmission request signals from the first mobile device and the second mobile device and transmits the plurality of transmission request signals to the control circuit, the control circuit determines whether to divide the first mobile device and the second mobile device into a user group,
• when the antenna array receives the plurality of transmission request signals from the first mobile device and the second mobile device and transmits the plurality of transmission request signals to the control circuit, and the control circuit divides the mobile devices into the user group, the control circuit generates a multi-user antenna index of the antenna array based on the first characteristic parameter table and the second characteristic parameter table, and simultaneously transmits a plurality of data streams corresponding to the first mobile device and the second mobile device through the antenna array,
• when the antenna array receives the transmission request signals from the first mobile device and the second mobile device and transmits the plurality of transmission request signals to the control circuit, and the first mobile device and the second mobile device are not divided into the user group, the control circuit generates a first single-user antenna index of the antenna array based on the first characteristic parameter table, and generates a second single-user antenna index of the antenna array based on the second characteristic parameter table, wherein the control circuit transmits the data streams to the first mobile device according to the first single-user antenna index and transmits the data streams to the second mobile device according to the second single-user antenna index through the antenna array,
• when the first mobile device and the second mobile are divided into the user group, the wireless communication device operates in a multi-user multi-input multi-output mode, so as to simultaneously transmit the data streams corresponding to the first mobile device and the second mobile through the antenna array, and
• when the first mobile device and the second mobile are not divided into the user group, the wireless communication system operates in a single-user multi-input multi-output mode, so as to transmit the data streams corresponding to the first mobile device and the second mobile one-by-one through the antenna array,
• wherein the multi-user antenna index, the first single-user antenna index and the second single-user antenna index are digital control signals having a plurality of bits,
• wherein the antenna array comprises a plurality of antenna elements and the antenna array is an antenna array with reconfigurable radiation pattern or polarization diversity, the control circuit of the wireless communication device transmits the multi-user antenna index or the single-user antenna index to the antenna control unit, and the antenna control unit controls radiation patterns or polarizations of the antenna elements according to the multi-user antenna index, the first single-user antenna index or the second single-user antenna index.