Aspects to support LTE-A downlink hi-order MIMO
First Claim
1. A method of operation of a MIMO transmitter, in a cellular network supporting both legacy mobile terminals and next-generation mobile terminals, said method comprising:
- identifying a plurality of resource blocks within a communication channel of said cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency band;
periodically transmitting a first set of reference signals (RSs) for said legacy mobile terminals at a first set of time and frequency resources within said plurality of resource blocks by said MIMO transmitter using a first period; and
periodically transmitting a second set of RSs for said next-generation mobile terminals at a second set of time and frequency resources within said plurality of resource blocks by said MIMO transmitter using a second period, wherein the second period is configured to be different from the first period.
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Abstract
A method of operation of a MIMO transmitter, in a cellular network supporting both legacy standard-compliant mobile terminals and next generation standard-compliant mobile terminals, the method comprising defining a matrix of resource blocks within an information channel of the cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency subband; assigning a first set of reference signals (RSs) for the legacy standard-compliant mobile terminals to resource blocks at specific locations within the matrix to be transmitted by the MIMO transmitter, the specific locations being defined by, the legacy standard; and assigning a second set of RSs for the next-generation standard-compliant mobile terminals to other resource blocks within the matrix to be transmitted by the MIMO transmitter.
86 Citations
22 Claims
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1. A method of operation of a MIMO transmitter, in a cellular network supporting both legacy mobile terminals and next-generation mobile terminals, said method comprising:
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identifying a plurality of resource blocks within a communication channel of said cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency band; periodically transmitting a first set of reference signals (RSs) for said legacy mobile terminals at a first set of time and frequency resources within said plurality of resource blocks by said MIMO transmitter using a first period; and periodically transmitting a second set of RSs for said next-generation mobile terminals at a second set of time and frequency resources within said plurality of resource blocks by said MIMO transmitter using a second period, wherein the second period is configured to be different from the first period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A base station operating in a cellular network supporting both legacy mobile terminals and next mobile terminals, the base station configured to:
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identify a plurality of resource blocks within a communication channel of said cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency band; periodically transmit a first set of reference signals (RSs) for said legacy mobile terminals at a first set of time and frequency resources within said plurality of resource blocks using a first period; and periodically transmit a second set of RSs for said next-generation mobile terminals at a second set of time and frequency resources within said plurality of resource blocks using a second period, wherein the second period is configured to be different from the first period. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification