METHOD FOR CONTROLLING UPLINK TRANSMISSION IN A MANAGEMENT DEVICE OF LTE-A NETWORK AND THE DEVICE THEREOF

• US 20130089078A1
• Filed: 03/25/2011
• Published: 04/11/2013
• Est. Priority Date: 06/20/2010
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: You, Mingli, Hou, Zhihua, Liu, Jin
• Granted Patent: US 9,008,048 B2
• Time in Patent Office: Days
• US Class Current: 370/335
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04J 13/0003 Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04W 72/0466 the resource being a scrambling code
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

According to embodiments of the present invention, there is provided a method of providing, for a dual-antenna UE or quadri-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, and the method for the former comprises the steps of: determining an uplink transmission scheme for the dual-antenna UE; semi-statically configuring, by high level signaling, the uplink transmission mode to which the uplink transmission scheme belongs; generating downlink control information corresponding to the determined uplink transmission scheme, the downlink control information comprising a first indicating field, a second indicating field, a new-data indicating field for a first transmission block and a new-data indicating field for a second transmission block; wherein, when transmission block is disabled for the determined up-link transmission scheme, disablement of at least one of two transmission blocks is represented by a first combination of the value of the first indicating field and the second indicating field; and the disablement of the two transmission blocks is represented by a combination formed by the new-data indicating field for the first transmission block and the new-data indicating field for the second transmission block; transmitting the generated downlink control information to the dual-antenna UE.

Claims

1. A method of providing, for a dual-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, the method comprising:

determining an uplink transmission scheme for said dual-antenna UE;

semi-statically configuring, by high level signaling, an uplink transmission mode to which said uplink transmission scheme belongs;

generating downlink control information corresponding to said determined uplink transmission scheme, said downlink control information comprising a first indicating field, a second indicating field, a new-data indicating field for a first transmission block and a new-data indicating field for a second transmission block;

wherein, when transmission block disabling function is adopted in said determined uplink transmission scheme, a first combination formed by the values of said first indicating field and said second indicating field is used to represent disablement of at least one of two transmission blocks; and

a combination formed by said new-data indicating field for said first transmission block and said new-data indicating field for said second transmission block is used to represent the disabled transmission block of said two transmission blocks;

transmitting said generated downlink control information to said dual-antenna UE.

2. The method according to claim 1, wherein, said downlink control information further comprises respective redundant versions of modulation-coding modes of said two transmission blocks;

when a transmission block is disabled in the determined uplink transmission scheme, at least part of the redundant version of modulation-coding mode of said disabled transmission block is utilized to represent pre-coding matrix indicating information of channel coding codeword which is mapped by the transmission block without being disabled, so as to replace a precoding matrix indicating field.

3. The method according to claim 1, wherein, when one-codeword retransmission is used in said determined uplink transmission scheme, a second combination formed by the values of said first indicating field and said second indicating field is used to represent the one-codeword retransmission of one transmission block of the two transmission blocks transmitted last time, and the combination formed by said new-data indicating field for said first transmission block and said new-data indicating field for said second transmission block is used to represent the transmission block, with said one-codeword retransmission conducted thereon, of said two transmission blocks.

4. The method according to claim 3, wherein, said downlink control information further comprises respective redundant versions of modulation-coding modes of said two transmission blocks, at least part of the redundant version of modulation-coding mode of the other transmission block, other than said transmission block with said one-codeword retransmission conducted, of said two transmission blocks is utilized to represent pre-coding matrix indicating information of channel coding codeword which is mapped by said transmission block with said one-codeword retransmission conducted, so as to replace a precoding matrix indicating field.

5. A method of providing, for a multi-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, the method comprising:

determining an uplink transmission scheme for said multi-antenna UE;

semi-statically configuring, by high level signaling, the uplink transmission mode to which said uplink transmission scheme belongs;

generating downlink control information corresponding to said determined uplink transmission scheme, said downlink control information comprising a precoding matrix indicating field, and further comprising a new-data indicating field for a first transmission block and a new-data indicating field for a second transmission block;

wherein, when transmission block disabling function is adopted in said determined uplink transmission scheme, a first value of said precoding matrix indicating field is used to represent disablement of at least one of two transmission blocks; and

a combination of said new-data indicating field for said first transmission block and said new-data indicating field for said second transmission block is used to represent the disabled transmission block of said two transmission blocks;

said downlink control information further comprises respective redundant version fields of modulation-coding modes of said two transmission blocks, wherein, the redundant version field of modulation-coding mode of said disabled transmission block is utilized to represent the pre-coding matrix information of channel coding codeword which is mapped by the transmission block without being disabled;

transmitting said generated downlink control information to said multi-antenna UE.

6. The method according to claim 5, wherein, when one-codeword retransmission is used in said determined uplink transmission scheme, a second value of said precoding matrix indicating field is used to represent the one-codeword retransmission of one transmission block of the two transmission blocks transmitted last time;

and the combination formed by said new-data indicating field for said first transmission block and said new-data indicating field for said second transmission block is used to represent the transmission block, with said one-codeword retransmission conducted thereon, of said two transmission blocks;

wherein, the redundant version field of modulation-coding mode of said transmission block, without said one-codeword retransmission conducted, represents the pre-coding matrix of channel coding codeword which is mapped by the transmission block with said one-codeword retransmission conducted.

7. A method of providing, for a dual-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, the method comprising:

determining an uplink transmission scheme for said dual-antenna UE;

semi-statically configuring, by high level signaling, the uplink transmission mode to which said uplink transmission scheme belongs;

generating downlink control information corresponding to said determined uplink transmission scheme, wherein, when said uplink transmission scheme is of a closed-loop spatial multiplexing transmission with up to two codewords, said downlink control information comprises;

a resource block assignment and hopping information field;

a transmission block disabling indicating field;

a TB-codeword mapping indicating field;

a redundant version field of modulation-coding mode of every transmission block;

a new-data indicating field of every transmission block;

a transmission power control field;

a cycle shift field for demodulation reference signal corresponding to a first channel coding codeword;

a CQI request field;

a SRS request field;

a CIF field;

an UL index field for TDD only;

a CRC field;

transmitting said generated downlink control information to said dual-antenna UE.

8. A method of providing, for a multi-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, the method comprising:

determining an uplink transmission scheme for said multi-antenna UE;

semi-statically configuring, by high level signaling, the uplink transmission mode to which said uplink transmission scheme belongs;

generating downlink control information corresponding to said determined uplink transmission scheme, wherein, when said uplink transmission scheme is of a closed-loop spatial multiplexing transmission with up to two codewords, said downlink control information comprises;

a resource block assignment and hopping information field;

a precoding matrix indicating field;

a TB-codeword mapping indicating field;

a redundant version field of modulation-coding mode of every transmission block;

a new-data indicating field of every transmission block;

a transmission power control field;

a cycle shift field for demodulation reference signal corresponding to a first channel coding codeword;

a CQI request field;

a SRS request field;

a CIF field;

an UL index field for TDD only;

a CRC field;

transmitting said generated downlink control information to said multi-antenna UE.

9. A method of providing, for a multi-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, the method comprising:

determining an uplink transmission scheme for said multi-antenna UE;

semi-statically configuring, by high level signaling, the uplink transmission mode to which said uplink transmission scheme belongs;

generating downlink control information corresponding to said determined uplink transmission scheme, wherein, when said uplink transmission scheme is of a closed-loop spatial multiplexing transmission with single layer, said downlink control information comprises;

a resource block assignment and hopping information field;

a precoding matrix indicating field;

a redundant version field of modulation-coding mode of every transmission block;

a new-data indicating field of every transmission block;

a transmission power control field;

a cycle shift field for demodulation reference signal corresponding to a channel coding codeword;

a CQI request field;

a SRS request field;

a CIF field;

an UL index field for TDD only;

a CRC field;

transmitting said generated downlink control information to said multi-antenna UE.

10. A method of controlling uplink transmission of a UE in a management device of LTE-A network, wherein, said method comprises:

predetermining three uplink transmission modes for said UE, said three uplink transmission mode comprising a first uplink transmission mode, a second uplink transmission mode and a third uplink transmission mode, wherein;

said first uplink transmission mode corresponds to single-antenna port transmission;

said second uplink transmission mode corresponds to single-antenna port transmission or closed-loop spatial multiplexing transmission with up to two codewords;

said third uplink transmission mode corresponds to single-antenna port transmission or closed-loop spatial multiplexing transmission with single layer;

when said UE is a dual-antenna UE, downlink control information provided for closed-loop spatial multiplexing transmission with up to two codewords to be conducted by said UE has a format;

or

when said UE is a multi-antenna UE other than dual-antenna UE, downlink control information provided for closed-loop spatial multiplexing transmission with up to two codewords to be conducted by said UE has a downlink control information format

11. A first device of providing, for a dual-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, the first device comprising:

a first unit for determining an uplink transmission scheme for said dual-antenna UE;

a second unit for semi-statically configuring, by high level signaling, the uplink transmission mode to which said uplink transmission scheme belongs;

a third unit for generating downlink control information corresponding to said determined uplink transmission scheme, said downlink control information comprising a first indicating field, a second indicating field, a new-data indicating field for a first transmission block and a new-data indicating field for a second transmission block;

wherein, when transmission block disabling function is adopted in said determined uplink transmission scheme, the disablement of at least one of two transmission blocks is represented by a first combination formed by the values of said first indicating field and said second indicating field; and

the disabled transmission block of said two transmission blocks is represented by a combination formed by said new-data indicating field for said first transmission block and said new-data indicating field for said second transmission block;

a first transmitting device for transmitting said generated downlink control information to said dual-antenna UE.

12. The first device according to claim 11, wherein, said downlink control information further comprises respective redundant versions of modulation-coding modes of said two transmission blocks;

when a transmission block is disabled in the determined uplink transmission scheme, at least part of the redundant version of modulation-coding mode of said disabled transmission block is utilized to represent pre-coding matrix indicating information of channel coding codeword which is mapped by the transmission block without being disabled, so as to replace a precoding matrix indicating field;

or,

when one-codeword retransmission is used in said determined uplink transmission scheme, the one-codeword retransmission, of one transmission block of the two transmission blocks transmitted last time, is represented by a second combination formed by the values of said first indicating field and said second indicating field, and the transmission block, with said one-codeword retransmission conducted thereon, of said two transmission blocks is represented by the combination formed by said new-data indicating field for said first transmission block and said new-data indicating field for said second transmission block.

13. The first device according to claim 12, wherein, said downlink control information further comprises respective redundant versions of modulation-coding modes of said two transmission blocks, at least part of the redundant version of modulation-coding mode of the other transmission block, other than said transmission block with said one-codeword retransmission conducted, of said two transmission blocks is utilized to represent pre-coding matrix indicating information of channel coding codeword which is mapped by said transmission block with said one-codeword retransmission conduct, so as to replace a precoding matrix indicating field.

14. A second device of providing, for a quadri-antenna UE, downlink control information used for uplink transmission in a management device of LTE-A network, the second device comprising:

a fourth unit for determining an uplink transmission scheme for said quadri-antenna UE;

a fifth unit for semi-statically configuring, by high level signaling, the uplink transmission mode to which said uplink transmission scheme belongs;

a sixth unit for generating downlink control information corresponding to said determined uplink transmission scheme, said downlink control information comprising a precoding matrix indicating field, and further comprising a new-data indicating field for a first transmission block and a new-data indicating field for a second transmission block;

wherein, when transmission block disabling function is adopted in said determined uplink transmission scheme, disablement of at least one of two transmission blocks is represented by a first value of said precoding matrix indicating field; and

the disabled transmission block of said two transmission blocks is represented by a combination of said new-data indicating field for said first transmission block and said new-data indicating field for said second transmission block;

said downlink control information further comprises respective redundant version fields of modulation-coding modes of said two transmission blocks, wherein, the TB-codeword mapping indicating field and the redundant version field of modulation-coding mode of said disabled transmission block collaboratively represent the pre-coding matrix of channel coding codeword which is mapped by the transmission block without being disabled;

a second transmitting device for transmitting said generated downlink control information to said multi-antenna UE.

15. The second device according to claim 14, wherein, when one-codeword retransmission is used in said determined uplink transmission scheme, the one-codeword retransmission, of one transmission block of the two transmission blocks transmitted last time, is represented by a second value of said precoding matrix indicating field;

and the transmission block, with said one-codeword retransmission conducted thereon, of said two transmission blocks transmitted last time is represented by the combination formed by said new-data indicating field for said first transmission block and said new-data indicating field for said second transmission block;

wherein, the redundant version field of modulation-coding mode of said transmission block, without said one-codeword retransmission conducted, represents the pre-coding matrix of channel coding codeword which is mapped by the transmission block with said one-codeword retransmission conducted.