TH28318A - Methods and devices to control source / channel encoder mode - Google Patents

Abstract

DC60 (27/06/40) Source / channel encoder mode control method. In a given TDMA radio communication system, (20) the current type of source signal to be encoded and transmitted to and controlled (22). Encoding based on the encoding mode layer of the source / channel. That is compatible with the specified type. (24) Measurement of the quality of a signal transmitted before it was received. And decode and select (30) according to the quality measurement Which source / channel encoder mode is best for a given layer. How to control source / channel encoder mode In a given TDMA radio communication system, (20) the current type of source signal to be encoded and transmitted to and controlled (22). Encoding based on the encoding mode layer of the source / channel. That is compatible with the specified type. (24) Measurement of the quality of a signal transmitted before it was received. And decode and select (30) according to the quality measurement Which source / channel encoder mode is best for a given layer.

Claims (1)

1.How to control source / channel encoder mode In radio communication systems Digital model with a radio connection from transmitter to receiver Where it consists of steps of: - determining the current type of signal of the source to be encoded and transmitted on the connection point. Such radio; - Class-based encryption control of shared source / channel encryption mode Can be with the specified type of signal of the source. Each mode in that class is assigned. By different combinations Encrypt the signal of the source and protect the channel. But there is a rate of All existing bits are equal; - determination of quality measurements for the transmitted signal That were received and decoded at the receiver; And - selection on the basis of such quality measurements. Which source / channel encoding mode Signal from the said floor That has the opportunity to provide the best received and decoded signal at the aforementioned receiver 2. The method specified in Clause 1 where the same procedure is performed for The signal transmitted on the radio connection is reversed from the receiver side to the transmitter side. 3. The method specified in Clause 2, which includes the procedure of: - Determining the quality measurement at the machine. receive; And - A selection of when available which source / channel encoding mode in the receiver allows. The space within the total net bit rate that exists for the in-band control channel for the transmission of quality measurements on the reverse radio connection. 4. The methods specified in Claim 1, which include: Stage of the experiment Encrypt the received signal in various decoding modes. And select the most possible decoding mode. 5. Methods stated in Clause 1 that will include the mode pointer in the transmitted signal. To point out the encoding mode of the selected source / channel. 6. The method described in Clause 4, which consists of a control procedure, The selection of the mode until it is a subset of all possible source / channel encoding modes. 7. Methods as stated in Clause 6 where only the closest mode exists when measured against channel protection. Provided of the current source / channel's encoding mode to be available. 8. Methods stated in Clause 1 that consist of the excitation process. Of frame theft control channels only If the specified type of signal of the source 9. Method as stated in Clause 1, which includes a delay procedure. Of excitation of frame steal control channels Until the specified type of signal Of the source to be encoded, it is allowed to do so. 1 0. Methods outlined in Clause 2 where the source / channel encoding is allowed. Independent on the said radio connection And the aforementioned radio reverse connection point 1 1. The device controls the encoder mode of the source / channel in the radio communication system. Digital model with a radio connection from transmitter to receiver Where it consists of: - a path for determining the current type of the source signal to be encoded and transmitted on the radio connection; - A path for controlling the encoding layer of the encoding mode of the source / channel used. Compatible with a given type of signal source. With each mode in the said class Will be determined by Mixing with different types Of encoding signal source And protect the channel And with the rate of All existing bits are equal; - a means for determining the quality measurement for the reception that was transmitted before it was received and Decoding at the said transmitter; And - the way to choose Based on such quality measurements In which the encryption mode of Source / channel from that floor That has the opportunity to give a signal that is received And decoding the best At the said receiver