DEVICE AND METHOD FOR PERFORMING DEVICE-TO-DEVICE BROADCAST COMMUNICATION IN A WIRELESS NETWORK
First Claim
1. A method for performing device-to-device broadcast communication at a user equipment of a wireless communication network, the method comprising:
- obtaining a row except a 1st row for device-to-device broadcast in a Walsh matrix;
performing device-to-device broadcast based on a transmission pattern determined by the obtained row, wherein the transmission pattern is;
performing the following operations based on each element in the row sequentially;
when the element is a first value, performing broadcast transmission of a same data packet;
when the element is a second value, performing broadcast reception.
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Abstract
The present invention provides a device and method for performing device-to-device broadcast communication in a wireless communication network, wherein the method comprises the steps of: obtaining a row except a 1st row for device-to-device broadcast in a Walsh matrix; performing device-to-device broadcast based on a transmission pattern determined by the obtained row, wherein the transmission pattern is: performing the following operations based on each element in the row sequentially: when the element is a first value, performing broadcast transmission of a same data packet; when the element is a second value, performing broadcast reception. Compared with the prior art, the present invention overcomes semi-duplexing limitation and reduces in-band emission, thereby achieves a better system performance.
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Citations
20 Claims
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1. A method for performing device-to-device broadcast communication at a user equipment of a wireless communication network, the method comprising:
obtaining a row except a 1st row for device-to-device broadcast in a Walsh matrix; performing device-to-device broadcast based on a transmission pattern determined by the obtained row, wherein the transmission pattern is;
performing the following operations based on each element in the row sequentially;when the element is a first value, performing broadcast transmission of a same data packet; when the element is a second value, performing broadcast reception. - View Dependent Claims (2, 3, 4)
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5-9. -9. (canceled)
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10. A user equipment for performing device-to-device broadcast communication in a wireless communication network, the equipment comprising:
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a row first obtaining module configured to obtain a row except a 1st row for device-to-device broadcast in a Walsh matrix; a broadcasting module configured to perform device-to-device broadcast based on a transmission pattern determined by the obtained row, wherein the transmission pattern is;
performing the following operations based on each element in the row sequentially;when the element is a first value, performing broadcast transmission of a same data packet; when the element is a second value, performing broadcast reception. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for facilitating device-to-device broadcast communication at a base station of a wireless communication network, the method comprises:
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determining, for a user equipment, a row except a 1st row for the user equipment'"'"'s device-to-device broadcast in a Walsh matrix; transmitting, to the user equipment, indication information for indicating a row except the 1st row for the user equipment'"'"'s device-to-device broadcast in the Walsh matrix.
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20. A base station facilitating device-to-device broadcast communication at a base station of a wireless communication network, the base station comprising:
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a row determining module configured to determine, for a user equipment, a row except a 1st row for the user equipment'"'"'s device-to-device broadcast in a Walsh matrix; an indication information transmitting module configured to transmit, to the user equipment, indication information for indicating a row except the 1st row for the user equipment'"'"'s device-to-device broadcast in the Walsh matrix.
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Specification