Method for allocating radio resources in a telecommunications system
AssigneeAirbus Ds Slc
InventorsEric Georgeaux, Philippe Mege, Laurent Martinod, Hang Nguyen, Alina-Alexandra Florea
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Abstract
A method allocates radio resources to a plurality of communications in a broadband telecommunication system, each communication being associated with at least one piece of user equipment, at least one of the communications being associated with a single piece of user equipment, the radio resources being distributed according to time and frequency between blocks of resources. The plurality of communications forms at least one group of communications and at least the same block of resources is allocated to the group of communications in order to transmit the plurality of communications.
Claims7
A method for allocating radio resources to a plurality of communications in a wideband telecommunications system, each communication being associated with at least one piece of user equipment, at least one of the communications being associated with a single piece of user equipment, said radio resources being time- and frequency-distributed into resource blocks, the plurality of communications forming at least one group of communications and at least one same resource block being allocated to said group of communications in order to transmit the plurality of communications, the method comprising:
- allocating the resource block or blocks identified by a first identifier to the group of communications based on at least one piece of information, received from at least one of the user equipment, about the quality of a communication in which said piece of user equipment is involved,
- encrypting said communication using a single encryption key with which a single decryption key is associated for enabling said communication to be decrypted,
- sending said first identifier to each piece of user equipment involved in a communication of the group of communications,
- transmitting the group of communications to the plurality of user equipment over a radio link using the allocated resource block or blocks and, for each piece of user equipment:
- (i) identifying, from the first identifier, the resource block or blocks over which the group of communications is transmitted,
- (ii) receiving the group of communications transmitted over the identified resource block or blocks, said group of communications including one or more communications not intended for said piece of user equipment, and
- (iii) applying its decryption key to all the communications of the received group of communications so as to decrypt only a communication intended for the piece of user equipment without decrypting the one or more communications not intended for said piece of user equipment.
A piece of user equipment of a telecommunications system, the piece of user equipment comprising:
- a non-transitory machine readable medium including instructions executable by at least one processor for
- identifying, from a first identifier of at least one same resource block allocated to a group of communications comprising said communication, the resource block or blocks over which said group of communications is transmitted,
- receiving said group of communications transmitted over the identified resource block or blocks, said group of communications including one or more communications not intended for said piece of user equipment,
- applying a decryption key to all the communications of the received group of communications so as to decrypt only a communication intended for the user equipment without decrypting the one or more communications not intended for said piece of user equipment, and
- sending at least a piece of information on the quality of a communication in which said piece of user equipment is involved.
A unit for allocating radio resources to a plurality of communications intended for a plurality of user equipment in a wideband telecommunications system, each communication being associated with at least one piece of user equipment, at least one of the communications being associated with a single piece of user equipment, said radio resources being time- and frequency-distributed into resource blocks, the plurality of communications forming at least one group of communications, the unit comprising:
- a non-transitory machine readable medium including instructions executable by at least one processor
- for allocating at least one same resource block to said group of communications in order to transmit the plurality of communications;
- for allocating the resource block or blocks identified by a first identifier to the group of communications based on at least one piece of information, received from at least one of the user equipment, about the quality of a communication in which said piece of user equipment is involved;
- for encrypting said communication using a single encryption key with which a single decryption key is associated for enabling said communication to be decrypted,
- for sending said first identifier to each piece of user equipment involved in a communication of the group of communications;
- for transmitting the group of communications to the plurality of user equipment over a radio link using the allocated resource block or blocks and, for each piece of user equipment:
- (i) identifying, from the first identifier, the resource block or blocks over which the group of communications is transmitted,
- (ii) receiving the group of communications transmitted over the identified resource block or blocks, said group of communications including one or more communications not intended for said piece of user equipment, and
- (iii) applying its decryption key to all the communications of the received group of communications so as to decrypt only a communication intended for the piece of user equipment without decrypting the one or more communications not intended for said piece of user equipment.
Dependencies are inferred from the claim text.