Variable multiple-input multiple-output downlink user equipment
First Claim
Patent Images
1. A user equipment comprising:
- antenna elements;
a receiver configured to process a signal received by the antenna elements; and
a processor configured to;
receive, from the receiver, first active set data identifying one or more serving nodes to provide downlink data transmission service to the user equipment in a coordinated multipoint mode;
cause the receiver to be configured for processing the signal in the coordinated multipoint mode when the user equipment has a measure of mobility that is less than a mobility threshold and a channel matrix Eigen value spread that is less than a threshold;
detect a mobility of the user equipment;
detect a characteristic of the user equipment, wherein the characteristic comprises at least one of;
an application type to utilize the downlink data transmission service, a protocol to utilize over the downlink data transmission service, or a device type for the user equipment;
cause transmission, via at least one of the antenna elements, of;
(i) channel state information for the user equipment, the channel state information identifying a quality of a transmission from a network system to the user equipment,(ii) information associated with the characteristic of the user equipment; and
(iii) information associated with the mobility of the user equipment;
receive, from the receiver via at least one of the antenna elements, updated active set data identifying one or more serving nodes to provide transmission service to the user equipment in an alternate downlink data transmission mode, wherein the alternate downlink data transmission mode comprises at least one of;
synchronized transmission across multiple network nodes for coherent combining, transmissions across multiple network nodes for non-coherent combining, or individual transmission from a selected best serving node, and wherein at least one of (a) the measure of mobility is greater than the mobility threshold in the alternative downlink transmission mode or (b) the channel matrix Eigen value spread is greater than the threshold in the alternative downlink transmission mode; and
cause the receiver to be adjusted for processing the signal in the alternative downlink data transmission mode from the one or more serving nodes identified by the updated active set data.
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Abstract
Aspects of this disclosure relate to variable multiple-input multiple-output (MIMO) downlink user equipment. Features are described for dynamically adjusting an operational state of a user equipment to obtain network services (e.g., downlink data traffic) according to different transmission modes. The user equipment may provide reports to a network controller indicating characteristics of the user equipment. The characteristics may indicate service level, quality, or type needed for user equipment operations. The user equipment may receive configuration information to adjust wireless capabilities to best meet the identified needs of the user equipment and the MIMO network.
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Citations
22 Claims
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1. A user equipment comprising:
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antenna elements; a receiver configured to process a signal received by the antenna elements; and a processor configured to; receive, from the receiver, first active set data identifying one or more serving nodes to provide downlink data transmission service to the user equipment in a coordinated multipoint mode; cause the receiver to be configured for processing the signal in the coordinated multipoint mode when the user equipment has a measure of mobility that is less than a mobility threshold and a channel matrix Eigen value spread that is less than a threshold; detect a mobility of the user equipment; detect a characteristic of the user equipment, wherein the characteristic comprises at least one of;
an application type to utilize the downlink data transmission service, a protocol to utilize over the downlink data transmission service, or a device type for the user equipment;cause transmission, via at least one of the antenna elements, of; (i) channel state information for the user equipment, the channel state information identifying a quality of a transmission from a network system to the user equipment, (ii) information associated with the characteristic of the user equipment; and (iii) information associated with the mobility of the user equipment; receive, from the receiver via at least one of the antenna elements, updated active set data identifying one or more serving nodes to provide transmission service to the user equipment in an alternate downlink data transmission mode, wherein the alternate downlink data transmission mode comprises at least one of;
synchronized transmission across multiple network nodes for coherent combining, transmissions across multiple network nodes for non-coherent combining, or individual transmission from a selected best serving node, and wherein at least one of (a) the measure of mobility is greater than the mobility threshold in the alternative downlink transmission mode or (b) the channel matrix Eigen value spread is greater than the threshold in the alternative downlink transmission mode; andcause the receiver to be adjusted for processing the signal in the alternative downlink data transmission mode from the one or more serving nodes identified by the updated active set data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18, 19, 20)
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11. A method of downlink transmission control for a user equipment, the method comprising:
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receiving, from a receiver of a user equipment, a first active set data identifying one or more serving nodes to provide downlink data transmission service to the user equipment in a coordinated multipoint mode; receiving, by the user equipment, downlink data in the coordinated multipoint mode when the user equipment has a measure of mobility that is less than a mobility threshold and a channel matrix Eigen value spread that is less than a threshold; detecting a mobility of the user equipment; detecting a characteristic of the user equipment, wherein the characteristic comprises at least one of;
an application type to utilize the downlink data transmission service, a protocol to utilize over the downlink data transmission service, or a device type for the user equipment;causing transmission, via at least one of a plurality of antenna elements of; (i) channel state information for the user equipment, the channel state information identifying a quality of a transmission from a network system to the user equipment, (ii) information associated with the characteristic of the user equipment; and (iii) information associated with the mobility of the user equipment; and receiving, from the receiver via at least one of the antenna elements, updated active set data identifying one or more serving nodes to provide the downlink data transmission service to the user equipment in an alternate downlink data transmission mode, wherein at least one of (a) the measure of mobility of the user equipment is greater than the mobility threshold in the alternative downlink transmission mode or (b) the channel matrix Eigen value spread of the user equipment is greater than the threshold in the alternative downlink transmission mode, and wherein the alternate downlink data transmission mode comprises at least one of;
synchronized transmission across multiple network nodes for coherent combining, transmissions across multiple network nodes for non-coherent combining, or individual transmission from a selected best serving node. - View Dependent Claims (12, 13, 14, 15, 16, 17, 21, 22)
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Specification