Modulation processing method and apparatus for high-order coding, base station, and terminal

• US 10,050,819 B2
• Filed: 09/01/2014
• Issued: 08/14/2018
• Est. Priority Date: 05/09/2014
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Chen, Zewei, Dai, Bo, Li, Yu Ngok, Zuo, Zhisong, Xu, Jun, Xia, Shuqiang
• Primary Examiner(s): Nguyen, Duc M
• Application Number:
  US15/309,804
• Publication Number:
  US 20170171014A1
• Time in Patent Office: 1,443 Days
• CPC Class Codes: H03C 7/02 in transmission lines, waveguides, cavity resonators or radiation fields of antennas
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/003 Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link
• CPC Class Codes: H04L 2027/0097 Adaptive synchronisation signals
• CPC Class Codes: H04L 25/03866 using scrambling
• CPC Class Codes: H04L 27/36 Modulator circuits; Transmitter circuits
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present document provides a modulation processing method and apparatus for high-order coding, a base station and a terminal, herein the method includes: a base station selecting a Modulation and Coding Scheme (MCS) table according to a transmission type and predefined information, herein the MCS table includes a MCS table supporting a M-order modulation and a MCS table not supporting a M-order modulation, herein M>64; and the base station transmitting downlink control signaling to a terminal, the downlink control signaling including a modulation and coding scheme field I_MCS, herein the I_MCS is based on the MCS table supporting or not supporting a M-order modulation selected by the base station.

Claims

1. A modulation processing method for high-order coding, comprising:

a base station selecting a Modulation and Coding Scheme, MCS, table according to a transmission type and predefined information, wherein the MCS table comprises a first table for supporting a M-order modulation and a second table for supporting modulations below the M-order modulation, wherein M>

64; and

the base station transmitting a downlink control signaling to a terminal, the downlink control signaling comprising a modulation and coding scheme field I_MCS, wherein the I_MCS is based on the first MCS table supporting or the second MCS table selected by the base station;

wherein a base station selecting a MCS table according to a transmission type and predefined information comprises;

when the transmission type is downlink transmission, the base station selecting a downlink MCS table according to the predefined information, wherein the predefined information comprises;

a table type configured for a subframe set, wherein the table type is a first Channel Quality Indication, CQI, table for supporting the M-order modulation or a second CQI table for supporting below the M-order modulation;

wherein the subframe set comprises;

subframe set 0 and/or subframe set 1 configured by the base station,

when the base station selects the downlink MCS table according to the table type configured for the subframe set, the method further comprises

when the first CQI table is configured for the subframe set 0 and/or the subframe set 1, using the first MCS table for all downlink subframes.

2. The method according to claim 1, wherein after the base station selects the first MCS table according to a transmission type and predefined information, the base station transmits the downlink control signaling to the terminal, the downlink control signaling comprising:

a Transmission Power Control, TPC, command field, wherein the TPC command field comprises at least one of the following characteristics;

when the downlink control signaling is transmitted through DCI format 3A, the TPC command field is represented by N1 bits, wherein N1 is a positive integer not less than 1, and at least one of the values of a TPC command corresponding to the TPC command field is different from −

1 and 1; and

when the downlink control signaling is transmitted through a DCI format other than the DCI format 3A, the TPC command field is represented by N2 bits, wherein N2 is a positive integer equal to or greater than 2, and at least one of the values of the TPC command corresponding to the TPC command field is different from −

1, 0, 1 and 3.

3. A modulation processing method for high-order coding, comprising:

a terminal receiving a downlink control signaling transmitted by a base station, the downlink control signaling comprising a modulation and coding scheme field I_MCS, wherein the I_MCS is based on a Modulation and Coding Scheme, MCS, table selected by the base station according to a transmission type and predefined information, wherein the MCS table comprises a first MCS table for supporting a M-order modulation and a second MCS table for supporting modulations below the M-order modulation, wherein M>

64; and

the terminal implementing modulation and coding on uplink data or implementing demodulation and decoding on downlink data according to I_MCS;

wherein

when the transmission type is downlink transmission, the base station selecting a downlink MCS table according to the predefined information, wherein the predefined information comprises;

a table type configured for a subframe set, wherein the table type is a first Channel Quality Indication, CQI, table for supporting the M-order modulation or a second CQI table for supporting modulations below the M-order modulation;

wherein the subframe set comprises;

subframe set 0 and/or subframe set 1 configured by the base station,

wherein when the transmission type is downlink transmission and the MCS table selected by the base station is a downlink MCS table, the method further comprises;

when the first CQI table is configured for the subframe set 0 and/or the subframe set 1, using the first MCS table for all downlink subframes.

4. The method according to claim 3, wherein when the base station selects the first MCS table, the terminal receives a downlink control signaling transmitted by the base station, the downlink control signaling at least comprising:

a Transmission Power Control, TPC, command field, wherein the TPC command field comprises at least one of the following characteristics;

when the downlink control signaling is transmitted through DCI format 3A, the TPC command field is represented by N1 bits, wherein N1 is a positive integer not less than 1, and at least one of the values of a TPC command corresponding to the TPC command field is different from −

1 and 1; and

when the downlink control signaling is transmitted through a DCI format other than the DCI format 3A, the TPC command field is represented by N2 bits, wherein N2 is a positive integer equal to or greater than 2, and at least one of the values of a TPC command corresponding to the TPC command field is different from −

1, 0, 1 and 3.

5. A modulation processing apparatus for high-order coding, comprising:

a selection module configured to select a Modulation and Coding Scheme, MCS, table according to a transmission type and predefined information, wherein the MCS table comprises a first MCS table for supporting a M-order modulation and a second MCS table for supporting modulations below the M-order modulation, wherein M>

64; and

a transmission module configured to transmit a downlink control signaling to a terminal, the downlink control signaling at least comprising a modulation and coding scheme field I_MCS, wherein the I_MCS is based on the first MCS table the second table selected by the base station;

wherein the selection module is further configured to, when the transmission type is downlink transmission, select a downlink MCS table according to the predefined information, wherein the predefined information comprises;

a table type configured for a subframe set, wherein the table type is the first MCS table or the second MCS table;

wherein the subframe set comprises;

subframe set 0 and/or subframe set 1 configured by the base station,

wherein when the transmission type is downlink transmission and the MCS table selected by the base station is a downlink MCS table, the method further comprises;

when the first CQI table is configured for the subframe set 0 and/or the subframe set 1, using the first MCS table for all downlink subframes.

6. A base station, comprising the apparatus according to claim 5.

7. A modulation processing apparatus for high-order coding, comprising:

a receiving module configured to receive a downlink control signaling transmitted by a base station, the downlink control signaling at least comprising a modulation and coding scheme field I_MCS, wherein the I_MCS is based on a Modulation and Coding Scheme, MCS, table selected by the base station according to a transmission type and predefined information, wherein the MCS table comprises a first MCS table for supporting a M-order modulation and a second MCS table for supporting modulations below the M-order modulation, wherein M>

64; and

a data processing module configured to implement modulation and coding on uplink data according to I_MCS or implement demodulation and decoding on downlink data according to I_MCS;

wherein the receiving module is further configured to when the transmission type is downlink transmission, select, by the base station, a downlink MCS table according to the predefined information, and when the predefined information comprises the following information, receive I_MCS;

a table type configured for a subframe set, wherein the table type is the first MCS table or the second MCS table;

wherein the subframe set comprises;

subframe set 0 and/or subframe set 1 configured by the base station,

wherein when the transmission type is downlink transmission and the MCS table selected by the base station is a downlink MCS table, the method further comprises;

when the first CQI table is configured for the subframe set 0 and/or the subframe set 1, using the first MCS table for all downlink subframes.

8. A terminal, comprising the apparatus according to claim 7.