Systems and methods for enhancing physical downlink control channel capacity
AssigneeT-Mobile Innovations LLC
InventorsNagi A. Mansour, Akin Ozozlu
Life of this patent
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Abstract
Systems and methods are provided for enhancing physical downlink control channel (PDCCH) capacity. To do so, a first PDCCH and a second PDCCH are communicated in single orthogonal frequency division multiplexing (OFDM) symbol of a subframe, freeing the remainder of the PDCCH code space for data. Initially, a transmission is communicated, by a node configured to wirelessly communicate with a user equipment (UE), to the UE. The transmission includes a first PDCCH in a first OFDM symbol of a subframe. The transmission also includes a second PDCCH in the first OFDM symbol of the subframe.
Claims16
A method for enhancing physical downlink control channel (PDCCH) capacity, the method comprising:
- communicating, by a node configured to wirelessly communicate with a user equipment (UE), a transmission to the UE, the transmission including:
- (1) a first PDCCH in a first orthogonal frequency division multiplexing (OFDM) symbol of a subframe;
- and
- (2) a second PDCCH generated by multiplying the first PDCCH by an orthogonal code and transmitted concurrently with the first PDCCH in a same OFDM symbol of the subframe;
- multiplying, for every transmission, the first PDCCH by a first orthogonal code to generate a first coded signal;
- multiplying the second PDCCH by a second orthogonal code to generate a second coded signal;
- transmitting, in a same OFDM symbol, both the first coded signal and the second coded signal;
- and
- utilizing a remaining PDCCH code space for data corresponding to the transmission.
A method for enhancing physical downlink control channel (PDCCH) capacity, the method comprising:
- receiving at a user equipment (UE), a signal comprising a first PDCCH and a second PDCCH, the second PDCCH generated by multiplying the first PDCCH by an orthogonal code, wherein the first PDCCH and the second PDCCH are communicated in a first orthogonal frequency division multiplexing (OFDM) symbol of a subframe, and
- wherein the first PDCCH has a different length than the second PDCCH.
A system for enhancing physical downlink control channel (PDCCH) capacity, the system comprising:
- a user equipment (UE);
- and
- a node configured to wirelessly communicate with the UE, wherein the node is configured to:
- (1) generate a second PDCCH by multiplying a first PDCCH by an orthogonal code;
- and
- (2) multiply the first PDCCH by a first orthogonal code to generate a first coded signal and multiply the second PDCCH by a second orthogonal code to generate a second coded signal;
- and
- (3) communicate, in PDCCH code space of a same orthogonal frequency-division multiplexing (OFDM) symbol, a signal to the UE, the signal including the first coded signal and the second coded signal.
Dependencies are inferred from the claim text.