US 2010/0246524 A1 · METHOD, SYSTEM AND TRANSMITTER FOR ADAPTIVE COORDINATED TRANSMISSION IN WIRELESS COMMUNICATIONS

Abstract

Embodiments of the present invention include a method, system and transmitter for adaptive coordinated transmission in wireless communications. The method includes: determining more than one transmitter for performing coordinated transmission, configuring one of the more than one transmitter to be a serving transmitter with others of the more than one transmitter being cooperating transmitters, and determining more than one receiver; determining, by a cooperating transmitter, a cooperation mode according to measured signal parameters of the more than one receiver after receiving a cooperation request from the serving transmitter, and providing the cooperation mode to the serving transmitter; generating, by each of the more than one transmitter, a transmit signal corresponding to the more than one receiver according to the cooperation mode determined, and transmitting the transmit signal to each of the more than one receiver. The method, system and transmitter of the present invention increase spectrum efficiency for cell edge users as much as possible while having relatively low implementation complexity.

Claims21

Dependent claims

A method for adaptive coordinated transmission in a wireless communication system, comprising:

determining more than one receiver and more than one transmitter for performing coordinated transmission, setting one of the more than one transmitter as a serving transmitter, and setting others of the more than one transmitter as cooperating transmitters;
receiving, by a cooperating transmitter, a cooperation request sent by the serving transmitter, determining a cooperation mode based on measured signal parameters of the more than one receiver, and providing the cooperation mode to the serving transmitter;
generating, by each transmitter, data stream corresponding to the more than one receiver according to the cooperation mode determined, and transmitting the data stream to each of the more than one receiver.

A system for adaptive coordinated transmission in wireless communications, comprising:

more than one receiver and more than one transmitter for coordinated transmission, wherein one of the more than one transmitter is set to be a serving transmitter, and others of the more than one transmitter are set to be cooperating transmitters;
wherein each of the cooperating transmitters is operable to receive a cooperation request sent by the serving transmitter, determine a cooperation mode based on measured signal parameters of the more than one receiver, and provide the cooperation mode to the serving transmitter;
and
each transmitter is operable to generate a transmit signal corresponding to the more than one receiver according to the cooperation mode determined, and transmit the transmit signal to each of the more than one receiver.

1 more element

A transmitter, comprising:

a cooperation mode determining unit, operable to determine a cooperation mode based on measured signal parameters of more than one receiver, and provide the cooperation mode to a second transmitter which initiates a cooperation request;
and
a transmit signal generating unit, operable to generate a transmit signal corresponding to the more than one receiver according to the cooperation mode determined, and send the transmit signal to each of the more than one receiver.

Dependencies are inferred from the claim text.

Method, system and transmitter for adaptive coordinated transmission in wireless communications

Life of this patent

Method, system and transmitter for adaptive coordinated transmission in wireless communications

Life of this patent

Abstract

Claims21