Method for repetitive transmissions
View Patent ↗The present invention relates to method, and apparatus relating to cellular radio communication ( 300 ). By communicating information repeatedly in either an uplink or a downlink connection by directing a main lobe of a radiation pattern ( 331 - 1 to 331 - n; 335 - 1 to 335 - n ) of the communication in different directions (d1, d2, d2, d4) in the cell ( 361,362 ) of the cellular radio communication network ( 300 ) the reception of repetitive transmission of any information in both uplink and downlink connection with as little complexity added to the network as possible is improved.
1. A method for communicating information repeatedly in either an uplink or a downlink connection established in a radio link between a user equipment and a base station serving a cell of a cellular communication network, characterized in the method comprising:
a) obtaining independently of a current position of said user equipment in said cell, at least a first and a second transmission direction;
b) communicating said information at least once by directing a main lobe of a radiation pattern of said communication in said first transmission direction;
c) communicating said information at least once by directing a main lobe of a radiation pattern of said communication in said second transmission direction; and
d) communicating said information repeatedly by directing a cell main lobe for which coverage defines said cell.
2. The method according to claim 1 , wherein said main lobe has a beam width which is less than a cell beam width of a cell main lobe which coverage is defining said cell.
3. The method according to claim 2 , wherein said main lobe has a beam width which is more than half said cell beam width of a cell main lobe required to cover whole said cell.
4. The method according to claim 1 , wherein step a):
involves selecting said at least first and second transmission direction from a predetermined set of transmission directions.
5. The method according to claim 1 , wherein step a):
involves selecting said at least first and second transmission direction randomly generated.
6. The method according to claim 1 , wherein said step d) is performed before said step a).
7. The method according to claim 1 , wherein upon a successful communication of said information to a receiver of said information, said communication is stopped.
8. The method according to claim 1 , wherein said steps a)-c):
involve communicating said information with said main lobe fixed.
9. The method according to claim 1 , wherein said steps a)-c):
involve communicating said information with said main lobe varied.
10. The method according to claim 1 , wherein said steps b)-d):
involve generating a data block for transporting said information during said communication.
11. The method according to claim 10 , wherein for each data block generated a different puncturing or coding scheme is used on said information.
12. The method according to claim 1 , wherein communicating said information on a radio channel, and said first and second transmission direction are obtained independently of having any information of the quality of a radio channel or of the estimate of the quality of said radio channel.
13. A node for communicating information repeatedly in either an uplink or a downlink connection established in a radio link between a user equipment and a base station serving a cell of a cellular communication network, characterized in that said node comprising:
a) a transceiver configured for obtaining independently of a current position of said user equipment in said cell, at least a first and a second transmission direction;
b) the transceiver further configured for communicating said information at least once by directing a main lobe of a radiation pattern of said communication in said first transmission direction;
c) the transceiver further configured for communicating said information at least once by directing a main lobe of a radiation pattern of said communication in said second transmission direction; and
d) the transceiver further configured for communicating said information repeatedly by directing a cell main lobe for which coverage defines said cell.
14. The node according to claim 13 , wherein said main lobe has a beam width which is less than a cell beam width of a cell main lobe which coverage is defining said cell.
15. The node according to claim 14 , wherein said main lobe has a beam width which is more than half said cell beam width of a cell main lobe required to cover whole said cell.
16. The node according to claim 13 , wherein
the transceiver is further configured for selecting said at least first and second transmission direction from a predetermined set of transmission directions.
17. The node according to claim 13 , wherein
the transceiver is further configured for selecting said at least first and second transmission direction randomly generated.
18. The node according to claim 13 , wherein the transceiver is configured to perform said repeated communication of d) before said independent obtaining of a).
19. The node according to claim 18 , wherein transceiver is further configured for generating a data block for transporting said information during said communication.
20. The node according to claim 19 , wherein for each data block generated a different puncturing or coding scheme is used on said information.
21. The node according to claim 13 , wherein upon a successful communication of said information to a receiver of said information, said communication is stopped.
22. The node according to claim 13 , wherein
transceiver is further configured for communicating said information with said main lobe fixed.
23. The node according to claim 13 , wherein
transceiver is further configured for communicating said information with said main lobe varied.
24. The node according to claim 13 , wherein the transceiver for communicating said information on a radio channel, and said first and second transmission direction are obtained independently of having any information of the quality of a radio channel or of the estimate of the quality of said radio channel.
25. The node according to claim 13 , wherein said node is either a base station having means transmitting in a downlink connection or a user equipment having means transmitting in an uplink connection.