Device, network, and method for receiving data transmission under scheduling decoding delay in mmWave communication
In a first example embodiment, a control transmission portion of a mmWave communication is received at a user equipment. The control transmission portion is divided into a plurality of control transmission portion sub-regions, each sub-region scheduling a data transmission for a corresponding sub-region of a data transmission portion of the mmWave communication. Then a first of the control transmission portion sub-regions is demodulated and decoded. A receive analog antenna beamforming is armed according to the demodulated and decoded first of the control transmission portion sub-regions. Beamforming is performed on a first sub-region of the data transmission portion of the mmWave communication, the first sub-region of the data transmission portion corresponding to the first of the control transmission portion sub-regions. During the arming and performing, a second of the control transmission portion sub-regions is demodulated and decoded.
1. A method for receiving a millimeter wave (mmWave) communication, comprising the operations of:
receiving, at a user equipment (UE), a control transmission portion of the mmWave communication;
assigning scheduling restrictions to an earlier portion of the control transmission portion of the mmWave communication;
performing demodulation and decoding of the earlier portion of the control transmission portion;
prior to completion of the demodulation and decoding of the earlier portion of the control transmission portion, receiving, an earlier portion of a data transmission portion of the mmWave communication, the earlier portion of the data transmission portion of the mmWave communication corresponding to the earlier portion of the control transmission portion of the mmWave communication;
performing beamforming of the earlier portion of the data transmission portion of the mmWave communication using default parameters;
performing demodulation and decoding of a later portion of the control transmission portion; and
performing beamforming of the later portion of the data transmission portion of the mmWave communication using parameters obtained during the performing of demodulation and decoding of the later portion of the control transmission portion.
2. The method of claim 1 , wherein the scheduling restrictions indicate a delay time and the default parameters.
3. The method of claim 1 , wherein the default parameters are parameters corresponding to last reported parameters for the UE.
4. The method of claim 1 , wherein the earlier portion and the later portion of the control transmission portion and the earlier portion and the later portion of the data transmission portion are determined a priori based an average demodulation and decoding times.
5. The method of claim 1 , wherein the earlier portion and the later portion of the control transmission portion and the earlier portion and the later portion of the data transmission portion are determined at runtime, such that the later portion of the data transmission portion includes any portion of the data transmission portion that is received subsequently to a corresponding portion of the control transmission portion being demodulated and decoded.
6. The method of claim 1 , wherein the operations are performed using a beamforming shared array.
7. The method of claim 1 , wherein the operations are performed using a beamforming sub-array.
8. The method of claim 1 , further comprising the operations of:
receiving a reference signal; and
wherein the performing beamforming comprises selecting a best beam pair using the reference signal and communicating the best beam pair to a network controller sending the reference signal.
9. The method of claim 8 , wherein resources of the reference signal include time and frequency at which the reference signal is transmitted and a sequence to generate the reference signal.