Resource distribution instructing method and apparatus for communication system

Abstract

The invention provides a resource distribution indication method of communication system that comprises: base station constructs the resource information occupied by integrated user terminal to bit graph with different number of bit; said base station forms indication command with all bit graph and resource information occupied by distributed user terminal, and sends said command in sharing mode to all user terminals, or, all user terminals compose command with all bit graph or resource information occupied by user terminal and send it to the base station; all user terminals or said base station demodulate the shared command or said composed command, and demodulate data to corresponding resource based on relative indication information. The invention also provides a resource distribution indicating device of communication system.

Description

technical field [0001] The present invention relates to the communication technology, in particular to the resource allocation indication technology of the communication system. Background technique [0002] In the downlink signaling and data transmission of the physical layer of the 3GPP (3rd Generation Partnership Project) LTE (Long Term Evolution, Long Term Evolution) system, a subframe includes 7 consecutive OFDM (Orthogonal Frequency Division Multiplexing (orthogonal frequency division multiplexing) symbols, each symbol includes M data subcarriers, and the value of M can be determined by the bandwidth. In the 3GPP LTE system, a subframe can be regarded as a time-frequency plane, and 7×M modulation symbols can be transmitted in this time-frequency plane. In downlink signaling and data transmission, the base station may transmit data of multiple user terminals at the same time. In this case, resource allocation must be performed among different user terminals. In the cu...

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Problems solved by technology

[0005] In the above method of resource allocation indication, the signaling sent by the base station to the user terminal is composed of bits, and the length of the signaling is the sum of the number of bits corresponding to each user terminal. Since the resource information occupied by each user terminal uses the same The number of bits represents the number of bits, so the length of the signaling sent by the base station to the user terminal should be the product of the number of user terminals and the number of bits corresponding to each user terminal, and for each user terminal, when other user terminal resources are known On the premise of allocation information, only certain bits in the corresponding bitmap are indicated for resource allocation information, or not all bits indicate resource allocation information. Therefore, the above method of resource allocation indication uses the same number of bits Indicating resource allocation information to user terminals will increase signaling overhead meaninglessly

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