Reporting method of terminal buffer state report (BSR), obtaining method for obtaining BSR from base station, and corresponding terminal, base station, communication system

A buffer status report method of a terminal, the terminal comprising a table for buffer status report and at least another table for extended buffer status report, the method comprising:

• looking for an indication in a signaling received from a base station wherein the indication corresponds to a type of buffer status report table, and is determined based on a type of the terminal;
• selecting a table from among the table for buffer status report and the at least another table for extended buffer status report based on the indication corresponding to the type of buffer status report table;
• obtaining an index from the selected table, according to an amount of data in a buffer of the terminal;
• and
• sending the index to a base station.

A base station, comprising:

• a buffer status report table;
• at least another table for extended buffer status report;
• a transceiver circuitry adapted to select a table from among the buffer status report table and the at least another table for extended buffer status report and send an indication in a RRC Connection Setup signaling to a terminal so that the terminal is able to look for the indication to select a table at the terminal based on the indication corresponding to a type of buffer status report table, wherein the indication corresponding to a type of buffer status report table is determined based on a type of the terminal;
• and
• an index receiver adapted to receive an index from the terminal
• and adapted to determine an amount of data in a buffer of the terminal according to the index received.

A buffer status report obtaining method at a base station, the base station comprising a table for buffer status report and at least another table for extended buffer status report, the method comprising:

• selecting a table from among the table for buffer status report and the at least another table for extended buffer status report and send an indication in a RRC Connection Setup signaling to a terminal so that the terminal is able to look for the indication to select a table at the terminal based on the indication corresponding to a type of buffer status report table, wherein the indication corresponding to the type of buffer status report table is determined based on a type of the terminal;
• receiving an index from the terminal;
• and
• determining an amount of data in a buffer of the terminal according to the index from the selected table.

A communication system, comprising:

• a terminal and a base station, wherein
• the terminal includes,
• a buffer status report table;
• at least another table for extended buffer status report;
• a receiver circuitry adapted to look for an indication in a signaling received from a base station wherein the indication corresponds to a type of buffer status report table and to select a table from among the buffer status report table and the at least another table for extended buffer status report based on the indication corresponding to the type of buffer status report table, wherein the indication corresponding to the type of buffer status report table is determined based on a type of the terminal;
• and
• an index sender adapted to send to a base station an index obtained from the selected table according to an amount of data in a buffer of the terminal,
• wherein
• the base station includes,
• an index receiver adapted to receive the index from the terminal
• and adapted to determine the amount of data in the buffer of the terminal according to the index received.

A terminal, comprising:

• memory including a buffer status report table and at least another table for extended buffer status report;
• and
• processing circuitry configured:
• to look for an indication in a signaling received from a base station wherein the indication corresponds to a type of buffer status report table and to select a table from among the buffer status report table and the at least another table for extended buffer status report, based on the indication corresponding to the type of buffer status report table, wherein the indication corresponding to the type of buffer status report table is determined based on a type of the terminal,
• to obtain an index from the selected table, according to an amount of data in a buffer of the terminal, and
• to cause the index to be sent to a base station.

A base station, comprising:

• memory including a buffer status report table and at least another table for extended buffer status report;
• and
• processing circuitry configured
• to select a table from among the buffer status report table and the at least another table for extended buffer status report and send an indication in a RRC Connection Setup signaling to a terminal so that the terminal is able to look for the indication to select a table at the terminal based on the indication corresponding to a type of buffer status report table, wherein the indication corresponding to the type of buffer status report table is determined based on a type of the terminal,
• to receive an index from the terminal, and
• to determine an amount of data in a buffer of the terminal according to the index from the selected table.

A communication system, comprising:

• a terminal and a base station, wherein
• the terminal includes,
• memory including a buffer status report table and at least another table for extended buffer status report;
• and
• processing circuitry configured:
• to look for an indication in a signaling received from a base station wherein the indication corresponds to a type of buffer status report table and to select a table from among the buffer status report table and the at least another table for extended buffer status report, based on the indication corresponding to the type of buffer status report table, wherein the indication corresponding to the type of buffer status report table is determined based on a type of the terminal,
• to obtain an index from the selected table, according to an amount of data in a buffer of the terminal, and
• to cause the index to be sent to the base station;
• wherein
• the base station includes,
• a receiver configured to receive the index from the terminal;
• and
• processing circuitry configured to determine the amount of data in the buffer of the terminal according to the index.