Channel quality reporting for full-duplex radio
First Claim
1. An apparatus, comprising:
- one or more processing elements including analog self-interference cancelation (SIC) circuitry and one or more digital SIC processing elements, wherein the one or more processing elements are configured to;
receive a reference signal in a wireless communication; and
determine an effective signal to interference plus noise ratio (SINR) for full-duplex (FD) communications, based on the reference signal, wherein the effective SINR for FD communications is based on;
a measured SINR of the reference signal; and
one or more measured self-interference cancelation (SIC) levels that include an analog SIC level generated by the analog SIC circuitry and a digital SIC level generated by the one or more digital SIC processing elements, wherein the analog SIC level is determined based on power of a wireless transmission by the apparatus and a measured residual power of the wireless transmission after analog self-interference cancelation.
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Accused Products
Abstract
Techniques are disclosed relating to channel quality reporting for full-duplex (FD) wireless communications. In some embodiments an apparatus (e.g., a mobile device) is configured to receive a reference signal in a wireless communication and determine an effective signal to interference plus noise ratio (SINR) for FD communications based on a measured SINR of the reference signal and one or more self-interference cancelation levels. The apparatus may determine the one or more self-interference cancelation levels based on the transmit power of signals transmitted by the apparatus and residual power after SIC. The SIC levels may include both analog and digital SIC levels, which may be separately determined. One or more modulation and coding schemes may be determined based on the effective SINR. In some embodiments, multiple effective SINRs are determined for multiple different transmission modulation orders used by the apparatus.
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Citations
17 Claims
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1. An apparatus, comprising:
one or more processing elements including analog self-interference cancelation (SIC) circuitry and one or more digital SIC processing elements, wherein the one or more processing elements are configured to; receive a reference signal in a wireless communication; and determine an effective signal to interference plus noise ratio (SINR) for full-duplex (FD) communications, based on the reference signal, wherein the effective SINR for FD communications is based on; a measured SINR of the reference signal; and one or more measured self-interference cancelation (SIC) levels that include an analog SIC level generated by the analog SIC circuitry and a digital SIC level generated by the one or more digital SIC processing elements, wherein the analog SIC level is determined based on power of a wireless transmission by the apparatus and a measured residual power of the wireless transmission after analog self-interference cancelation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method, comprising:
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transmitting, by a computing device, a reference signal for full-duplex (FD) wireless communication; receiving, by the computing device, one or more channel quality indicators in a wireless communication from a receiving computing device that received the reference signal, wherein the one or more channel quality indicators are determined based on both a measured SINR of the reference signal and one or more measured self-interference cancelation (SIC) levels for the receiving computing device; and selecting, by the computing device, one or more modulation and coding schemes for subsequent FD wireless communications based on the one or more channel quality indicators, wherein the one or more modulation and coding schemes include a first modulation and coding scheme for transmissions from the receiving device and a second modulation and coding scheme for transmissions to the receiving device, wherein the first and second modulation and coding schemes are different modulation and coding schemes, and wherein the selecting is performed based on overall spectral efficiency for FD wireless communications with the receiving device. - View Dependent Claims (8, 9, 10)
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11. A non-transitory computer-readable medium having instructions stored thereon that are executable by a computing device to perform operations comprising:
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receiving a reference signal in a wireless communication; and determining an effective signal to interference plus noise ratio (SINR) for full-duplex (FD) communications, based on the reference signal, wherein the effective SINR for FD communications is based on; a measured SINR of the reference signal; and one or more measured self-interference cancelation (SIC) levels that include an analog SIC level generated by analog SIC circuitry of the computing device and a digital SIC level generated by one or more digital SIC processing elements of the computing device, wherein the analog SIC level is determined based on power of a wireless transmission by the computing device and a measured residual power of the wireless transmission after analog self-interference cancelation. - View Dependent Claims (12, 13, 14, 15)
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16. A method, comprising:
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transmitting, by a computing device, a reference signal for full-duplex (FD) wireless communication; receiving, by the computing device, one or more channel quality indicators in a wireless communication from a receiving computing device that received the reference signal, wherein the one or more channel quality indicators are determined based on both a measured SINR of the reference signal and one or more measured self-interference cancelation (SIC) levels for the receiving device; determining, by the computing device, one or more SIC levels of the computing device; and selecting, by the computing device, one or more modulation and coding schemes for subsequent FD wireless communications based on the one or more channel quality indicators and the determined one or more SIC levels of the computing device, wherein the one or more modulation and coding schemes include a first modulation and coding scheme for transmissions from the receiving device and a second modulation and coding scheme for transmissions to the receiving device.
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17. A method, comprising:
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transmitting, by a computing device, a reference signal for full-duplex (FD) wireless communication; receiving, by the computing device, one or more channel quality indicators in a wireless communication from a receiving computing device that received the reference signal, wherein the one or more channel quality indicators are determined based on both a measured SINR of the reference signal and one or more measured self-interference cancelation (SIC) levels for the receiving device, wherein the one or more channel quality indicators include multiple channel quality indicators corresponding to different modulation orders for transmissions from the receiving device; and selecting, by the computing device, one or more modulation and coding schemes for subsequent FD wireless communications based on the multiple channel quality indicators.
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Specification