HK1234581B - Ultra reliable link design - Google Patents

Description

Ultra-reliable link design

Cross-application

This application claims priority to U.S. Patent Application No. 14/567,887, filed on December 11, 2014, by Ji et al., entitled “Ultra Reliable Link Design,” and U.S. Provisional Patent Application No. 62/027,623, filed on July 22, 2014, by Ji et al., entitled “Ultra Reliable Link Design,” each of which is assigned to its assignee.

Technical Field

Aspects of the present disclosure generally relate to wireless communications, and more particularly, to improvements in channel side feedback (CSF) reporting.

Background Art

Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, and broadcast. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, and orthogonal frequency division multiple access (OFDMA) systems.

As an example, a wireless multiple-access communication system may include multiple base stations, each of which simultaneously supports communication for multiple user equipment (UEs). The base stations may communicate with the UEs over downlink channels (e.g., for transmissions from the base station to the UE) and uplink channels (e.g., for transmissions from the UE to the base station). When a receiving device and a transmitting device communicate over the channels, there is a probability (error probability) that a given transmission will be lost (e.g., not received or correctly decoded by the receiving device).

In some communication systems, a receiving device may provide a channel side feedback (CSF) report to a transmitting device. The report may indicate the data rate (e.g., sustained capacity, such as sustained data rate or sustained payload size) observed on the wireless channel given a defined error probability (e.g., 10% for a single transmission at a specific time).

Upon receiving the CSF report, the transmitting device may map the value of the data rate parameter contained in the CSF report to a modulation and coding scheme (MCS) that enables the transmitting device to maintain a defined error probability. Unfortunately, current CSF reporting may not be robust enough for certain mission-critical services (e.g., medical, industrial, and/or military services).

Summary of the Invention

The present disclosure relates, for example, to one or more techniques for improving CSF reporting. The techniques can enable wireless transmission links to operate with fiber-like link reliability without sacrificing efficiency. In one set of techniques, CSF reporting can be conditioned on parameters other than error probability and/or on multiple parameters. In addition, the value of a parameter other than data rate can be reported in the CSF report, and/or the values of multiple parameters can be reported in the CSF report. In addition, different parameter values or combinations of parameter values can be reported based on multiple given values of one or more other parameters. In another set of techniques, interference on a wireless channel can be measured, interfering devices responsible for the interference can be identified, and CSF reporting can be modified to include an indication of the interfering device and a correlation of the interference from the interfering device with time and/or frequency. In another set of techniques, CSF reporting can be modified to indicate the correlation of one or more CSF parameters (e.g., a data rate parameter) with time and/or frequency.

In a first set of illustrative examples, a method for wireless communication is described. In one configuration, the method may include: measuring conditions of a wireless channel by a first device; generating at least one channel-side information feedback message based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information related to a relationship of a parameter set; and sending the at least one channel-side information feedback message to a second device. The parameter set may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, and at least a first parameter in the parameter set is input to the first device, and at least a second parameter in the parameter set is output conditioned on at least the first parameter. The at least one channel-side information feedback message sent to the second device may include at least the second parameter.

In some examples of the method, generating the at least one channel-side information feedback message can include estimating a value for each parameter in the first subset of the parameter set based on a given value for each parameter in the remaining subset of the parameter set. In these examples, the method can include receiving, over the wireless channel, the given value for at least one parameter in the remaining subset. The method can also or alternatively include determining, by the first device, the given value for at least one parameter in the remaining subset. In some examples, the at least one channel-side information feedback message can include the estimated value for at least one parameter in the first subset.

In some examples of this method, the first subset may include the data rate parameter, and the remaining subset may include the error probability parameter, the deadline parameter, and the transmission link parameter. In some examples, the first subset may include the error probability parameter, and the remaining subset may include the data rate parameter, the deadline parameter, and the transmission link parameter. In some examples, the first subset may include the deadline parameter, and the remaining subset may include the error probability parameter, the data rate parameter, and the transmission link parameter. In some examples, the first subset may include the transmission link parameter, and the remaining subset may include the error probability parameter, the deadline parameter, and the data rate parameter. In some examples, the first subset may include the data rate parameter and the transmission link parameter, and the remaining subset may include the error probability parameter and the deadline parameter. In some examples, the first subset may include the data rate parameter, the deadline parameter, and the transmission link parameter, and the remaining subset may include the error probability parameter. In some examples, the remaining subset may include the deadline parameter, and the value of at least one parameter in the first subset may be estimated for a plurality of different given values of the deadline parameter.

In some examples of the method, the first subset may include an error probability parameter, and a value of the error probability parameter may be estimated based on a plurality of different radio links. In some examples, the method may include selecting the plurality of different radio links as a subset of all possible radio links. In some examples, the error probability parameter may be based on simultaneous transmissions on the plurality of different radio links.

In some examples of the method, the deadline parameter may correspond to a waiting time associated with a single retransmission of the signal.

In a second set of illustrative examples, a device for wireless communication is described. In one configuration, the device may include: means for measuring conditions of a wireless channel; means for generating at least one channel-side information feedback message based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information related to a relationship of a parameter set; and means for sending the at least one channel-side information feedback message to another device. The parameter set may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, and at least a first parameter in the parameter set is input to the device, and at least a second parameter in the parameter set is output conditioned on at least the first parameter. The at least one channel-side information feedback message sent to the other device may include at least the second parameter. In some examples, the apparatus may also include means for implementing one or more aspects of the method for wireless communication described above with respect to the first set of illustrative examples.

In a third set of illustrative examples, another device for wireless communication is described. In one configuration, the device may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to: measure conditions of a wireless channel; generate at least one channel-side information feedback message based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information regarding a relationship between a parameter set; and send the at least one channel-side information feedback message to another device. The parameter set may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, wherein at least a first parameter in the parameter set is input to the device, and at least a second parameter in the parameter set is output conditioned on at least the first parameter. The at least one channel-side information feedback message sent to the other device may include at least the second parameter. In some examples, the instructions may also be executable by the processor to implement one or more aspects of the method for wireless communication described above with respect to the first set of illustrative examples.

In a fourth set of illustrative examples, a computer program product for communication by a device in a wireless communication system is described. In one configuration, the computer program product may include a non-transitory computer-readable medium storing instructions executable by a processor to cause the device to: measure conditions of a wireless channel; generate at least one channel-side information feedback message based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information regarding a relationship between parameter sets; and transmit the at least one channel-side information feedback message to another device. The parameter set may include a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, wherein at least a first parameter in the parameter set is input to the device, and at least a second parameter in the parameter set is output conditioned on at least the first parameter. The at least one channel-side information feedback message transmitted to the other device may include at least the second parameter. In some examples, the instructions may also be executable by the processor to cause the device to implement one or more aspects of the method for wireless communication described above with respect to the first set of illustrative examples.

In a fifth set of illustrative examples, another method of wireless communication is described. In one configuration, the method may include: transmitting a wireless signal to a device over a wireless channel; and receiving from the device at least one channel-side information feedback message based on measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information about a relationship between a set of parameters. The set of parameters may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, and at least a first parameter in the parameter set is input to the device, and at least a second parameter in the parameter set is output conditioned on at least the first parameter. The at least one channel-side information feedback message received from the device may include at least the second parameter.

In some examples of the method, the at least one channel-side information feedback message may include an estimated value for each parameter in the first subset of the parameter set based on a given value for each parameter in the remaining subset of the parameter set. In these examples, the method may include sending an indication to the device for at least one of the first subset or the remaining subset. The method may also or alternatively include sending the given value for at least one parameter in the remaining subset to the device. In some examples, the at least one channel-side information feedback message may include an estimated value for at least one parameter in the first subset.

In some examples of the method, the first subset can include the data rate parameter, and the remaining subset can include the error probability parameter, the deadline parameter, and the transmission link parameter.

In some examples of the method, the first subset may include an error probability parameter, and the remaining subset may include the data rate parameter, the deadline parameter, and the transmission link parameter. In some examples, the first subset may include the deadline parameter, and the remaining subset may include the error probability parameter, the data rate parameter, and the transmission link parameter. In some examples, the first subset may include the transmission link parameter, and the remaining subset may include the error probability parameter, the deadline parameter, and the data rate parameter. In some examples, the first subset may include the data rate parameter and the transmission link parameter, and the remaining subset may include the error probability parameter and the deadline parameter. In some examples, the first subset may include the data rate parameter, the deadline parameter, and the transmission link parameter, and the remaining subset may include the error probability parameter. In some examples, the remaining subset may include the deadline parameter, and the value of at least one parameter in the first subset may be estimated for a plurality of different given values of the deadline parameter.

In some examples of the method, the first subset may include the error probability parameter, and the value of the error probability parameter may be estimated based on a plurality of different radio links. In some examples, the plurality of different radio links may be a subset of all possible radio links. In some examples, the error probability parameter may be based on simultaneous transmissions on the plurality of different radio links.

In some examples of the method, the deadline parameter may correspond to a waiting time associated with a single retransmission of the signal.

In the sixth set of illustrative examples, another device for wireless communication is described. In one configuration, the device may include: a unit for sending a wireless signal to another device on a wireless channel; and a unit for receiving at least one channel-side information feedback message from the other device based on a measured condition of the wireless channel, wherein the at least one channel-side information feedback message provides information related to a relationship of a parameter set. The parameter set may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, and at least a first parameter in the parameter set is input to the other device, and at least a second parameter in the parameter set is output based on at least the first parameter. The at least one channel-side information feedback message received from the other device may include at least the second parameter. In some examples, the apparatus may also include a unit for implementing one or more aspects of the method for wireless communication described above with respect to the fifth set of illustrative examples.

In a seventh set of illustrative examples, another device for wireless communication is described. In one configuration, the device may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. In one configuration, the instructions may be executable by the processor to: transmit a wireless signal to another device over a wireless channel; and receive from the other device at least one channel-side information feedback message based on measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information related to a relationship between a parameter set. The parameter set may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, and at least a first parameter in the parameter set is input to the other device, and at least a second parameter in the parameter set is output conditioned on at least the first parameter. The at least one channel-side information feedback message received from the other device may include at least the second parameter. In some examples, the instructions may also be executable by the processor to implement one or more aspects of the method for wireless communication described above with respect to the fifth set of illustrative examples.

In an eighth set of illustrative examples, another computer program product for communication by a device in a wireless communication system is described. In one configuration, the computer program product may include a non-transitory computer-readable medium storing instructions executable by a processor to cause the device to: transmit a wireless signal to another device over a wireless channel; and receive from the other device at least one channel-side information feedback message based on measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information related to a relationship between a parameter set. The parameter set may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, and at least a first parameter in the parameter set is input to the other device, and at least a second parameter in the parameter set is output conditioned on at least the first parameter. The at least one channel-side information feedback message received from the other device may include at least the second parameter. In some examples, the instructions may also be executable by the processor to cause the device to implement one or more aspects of the method for wireless communication described above with respect to the fifth set of illustrative examples.

In a ninth set of illustrative examples, another method of wireless communication is described. In one configuration, the method may include: measuring interference on a wireless channel by a first device; identifying an interfering device for the wireless channel based on the measured interference; generating at least one channel-side information feedback message based on the measured interference on the wireless channel, wherein the at least one channel-side information feedback message indicates the interfering device for the wireless channel and a correlation of the measured interference from the interfering device with time or frequency; and sending the at least one channel-side information feedback message to a second device.

In some examples of the method, identifying an interfering device with respect to the wireless channel can include determining that a strength of the measured interference from the interfering device satisfies a threshold. In some examples, the at least one channel-side information feedback message can include an identification of the interfering device. In some examples, the method can include estimating a periodicity in time or frequency of the measured interference from the interfering device, and the correlation of the measured interference can include the estimated periodicity. In some examples, the method can include determining a burst duration associated with the measured interference from the interfering device, and the at least one channel-side information feedback message can include the burst duration.

In some examples, the method may include decoding a portion of an interfering signal, and the burst duration may be determined based on the decoded portion of the interfering signal. In some examples, determining the burst duration may include estimating the burst duration based on measured interference.

In some examples, the method may include predicting an impact on a data rate on the wireless channel when at least one of an interference cancellation operation or a joint detection operation is performed. In these examples, the at least one channel-side information feedback message may also indicate a correlation of residual interference from the interfering device with time or frequency. In some examples, the method may include identifying at least one additional interfering device for the wireless channel based on the measured interference, and the at least one channel-side information feedback message may indicate a correlation of the at least one additional interfering device for the wireless channel and the measured interference from the at least one additional interfering device with time or frequency. In some examples, the at least one channel-side information feedback message may indicate a correlation between the measured interference from the interfering device and the measured interference from the at least one additional interfering device.

In the tenth group of illustrative examples, another device for wireless communication is described. In one configuration, the device may include: a unit for measuring interference on a wireless channel; a unit for identifying an interfering device for the wireless channel based on the measured interference; a unit for generating at least one channel-side information feedback message based on the measured interference on the wireless channel, wherein the at least one channel-side information feedback message indicates the interfering device for the wireless channel and a correlation of the measured interference from the interfering device with time or frequency; and a unit for sending the at least one channel-side information feedback message to another device. In some examples, the apparatus may also include a unit for implementing one or more aspects of the method for wireless communication described above with respect to the ninth group of illustrative examples.

In the eleventh group of illustrative examples, another device for wireless communication is described. In one configuration, the device may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to: measure interference on a wireless channel; identify an interfering device for the wireless channel based on the measured interference; generate at least one channel-side information feedback message based on the measured interference on the wireless channel, wherein the at least one channel-side information feedback message indicates the interfering device for the wireless channel and a correlation of the measured interference from the interfering device with time or frequency; and send the at least one channel-side information feedback message to another device. In some examples, the instructions may also be executable by the processor to implement one or more aspects of the method for wireless communication described above with respect to the ninth group of illustrative examples.

In the twelfth group of illustrative examples, another computer program product for communication performed by a device in a wireless communication system is described. In one configuration, the computer program product may include a non-transitory computer-readable medium storing instructions executable by a processor to cause the device to perform the following operations: measure interference on a wireless channel; identify an interfering device of the wireless channel based on the measured interference; generate at least one channel-side information feedback message based on the measured interference on the wireless channel, wherein the at least one channel-side information feedback message indicates the interfering device for the wireless channel and a correlation of the measured interference from the interfering device with time or frequency; and send the at least one channel-side information feedback message to another device. In some examples, the instructions may also be executable by the processor to cause the device to implement one or more aspects of the method for wireless communication described above with respect to the ninth group of illustrative examples.

In a thirteenth set of illustrative examples, another method of wireless communication is described. In one configuration, the method may include: transmitting a wireless signal to a device on a wireless channel; and receiving at least one channel-side information feedback message from the device, wherein the at least one channel-side information feedback message indicates an interfering device on the wireless channel and a correlation of interference from the interfering device with time or frequency.

In some examples, the method may include sending an indication to the device of the wireless channel for which the correlation of interference from the interfering device is to be reported. In some examples, the at least one channel-side information feedback message may include an identification of the interfering device. In some examples, the at least one channel-side information feedback message may include a periodicity in time or frequency of the interference from the interfering device. In some examples, the correlation of the measured interference may include a burst duration of the interference from the interfering device. In some examples, the correlation of the measured interference may include a correlation of residual interference for the interfering device with time and/or frequency.

In some examples of the method, the at least one channel-side information feedback message may indicate at least one additional interfering device for the wireless channel and a correlation of the measured interference from the at least one additional interfering device with time or frequency. In some examples of the method, the at least one channel-side information feedback message may indicate a correlation between the measured interference from the interfering device and the measured interference from the at least one additional interfering device.

In the fourteenth set of illustrative examples, another apparatus for wireless communication is described. In one configuration, the apparatus may include: means for transmitting a wireless signal to another device on a wireless channel; and means for receiving at least one channel-side information feedback message from the other device, wherein the at least one channel-side information feedback message indicates an interfering device on the wireless channel and a correlation of interference from the interfering device with time or frequency. In some examples, the apparatus may also include means for implementing one or more aspects of the method for wireless communication described above with respect to the thirteenth set of illustrative examples.

In the fifteenth set of illustrative examples, another device for wireless communication is described. In one configuration, the device may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to: send a wireless signal to another device on a wireless channel; and receive at least one channel-side information feedback message from the other device, wherein the at least one channel-side information feedback message indicates an interfering device for the wireless channel and a correlation of interference from the interfering device with time or frequency. In some examples, the instructions may also be executed by the processor to implement one or more aspects of the method for wireless communication described above with respect to the thirteenth set of illustrative examples.

In the sixteenth set of illustrative examples, another computer program product for communication performed by a device in a wireless communication system is described. In one configuration, the computer program product may include a non-transitory computer-readable medium storing instructions that can be executed by a processor to cause the device to perform the following operations: sending a wireless signal to another device on a wireless channel; and receiving at least one channel-side information feedback message from the other device, wherein the at least one channel-side information feedback message indicates an interfering device for the wireless channel and a correlation of the interference from the interfering device with time or frequency. In some examples, the instructions may also be executed by the processor to cause the device to implement one or more aspects of the method for wireless communication described above with respect to the thirteenth set of illustrative examples.

In a seventeenth set of illustrative examples, another method of wireless communication is described. In one configuration, the method may include: measuring, by a first device, conditions of a wireless channel; generating at least one channel-side information feedback message based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information about at least one parameter related to time or frequency; and transmitting the at least one channel-side information feedback message to a second device.

In some examples of the method, the at least one parameter may include a data rate parameter. In some examples, the method may include estimating a periodicity of the at least one parameter in time or frequency, and the at least one channel-side information feedback message may include the estimated periodicity.

In the eighteenth set of illustrative examples, another device for wireless communication is described. In one configuration, the device may include means for measuring conditions of a wireless channel; means for generating at least one channel-side information feedback message based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information about at least one parameter related to time or frequency; and means for transmitting the at least one channel-side information feedback message to another device. In some examples, the device may also include means for implementing one or more aspects of the method for wireless communication described above with respect to the seventeenth set of illustrative examples.

In the nineteenth set of illustrative examples, another device for wireless communication is described. In one configuration, the device may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to measure conditions of a wireless channel by a first device; generate at least one channel-side information feedback message based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information about at least one parameter related to time or frequency; and send the at least one channel-side information feedback message to another device. In some examples, the instructions may also be executable by the processor to implement one or more aspects of the method for wireless communication described above with respect to the seventeenth set of illustrative examples.

In the twentieth set of illustrative examples, another computer program product for communication by a device in a wireless communication system is described. In one configuration, the computer program product may include a non-transitory computer-readable medium storing instructions executable by a processor to cause the device to: measure conditions of a wireless channel by a first device; generate at least one channel-side information feedback message based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information about at least one parameter related to time or frequency; and send the at least one channel-side information feedback message to another device. In some examples, the instructions may also be executable by the processor to cause the device to implement one or more aspects of the method for wireless communication described above with respect to the seventeenth set of illustrative examples.

In a twenty-first set of illustrative examples, another method of wireless communication is described. In one configuration, the method may include: transmitting a wireless signal to a device over a wireless channel; and receiving from the device at least one channel-side information feedback message based on a measured condition of the wireless channel, wherein the at least one channel-side information feedback message provides information regarding at least one parameter related to time or frequency.

In some examples of the method, the at least one parameter may include a data rate parameter. In some examples of the method, the at least one channel-side information feedback message may include a periodicity of the at least one parameter in time or frequency.

In the twenty-second set of illustrative examples, another apparatus for wireless communication is described. In one configuration, the apparatus may include: means for transmitting a wireless signal to a device over a wireless channel; and means for receiving from the device at least one channel-side information feedback message based on measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information regarding at least one parameter related to time or frequency. In some examples, the apparatus may also include means for implementing one or more aspects of the method for wireless communication described above with respect to the twenty-first set of illustrative examples.

In the twenty-third set of illustrative examples, another device for wireless communication is described. In one configuration, the device may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to: transmit a wireless signal to a device on a wireless channel; and receive from the device at least one channel-side information feedback message based on a measured condition of the wireless channel, wherein the at least one channel-side information feedback message provides information about at least one parameter related to time or frequency. In some examples, the instructions may also be executed by the processor to implement one or more aspects of the method for wireless communication described above with respect to the twenty-first set of illustrative examples.

In the twenty-fourth set of illustrative examples, another computer program product for communication by a device in a wireless communication system is described. In one configuration, the computer program product may include a non-transitory computer-readable medium storing instructions executable by a processor to cause the device to: transmit a wireless signal to a device on a wireless channel; and receive from the device at least one channel-side information feedback message based on measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information about at least one parameter related to time or frequency. In some examples, the instructions may also be executable by the processor to cause the device to implement one or more aspects of the method for wireless communication described above with respect to the twenty-first set of illustrative examples.

The foregoing has outlined quite broadly the features and technical advantages of the examples according to the present disclosure so that the subsequent specific embodiments may be better understood. Additional features and advantages will be described below. The concepts and specific examples disclosed may be readily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the spirit and scope of the appended claims. Features (both with respect to their organization and method of operation) that are considered to be characteristic of the concepts disclosed herein, as well as the associated advantages, will be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the accompanying drawings is for illustration and description purposes only and is not intended to be a definition of a limitation of the claims.

A further understanding of the nature and advantages of the present invention may be achieved by reference to the following drawings. In the drawings, similar components or features may be given the same reference numerals. In addition, various components of the same type may be distinguished by following the reference numeral with a dash and a second label to distinguish the similar components. If only the first reference numeral is used in the specification, the description applies to any similar component having the same first reference numeral, regardless of the second reference numeral.

BRIEF DESCRIPTION OF THE DRAWINGS

A further understanding of the nature and advantages of the present disclosure may be achieved by reference to the following drawings. In the drawings, similar components or features may have the same reference numerals. In addition, various components of the same type may be distinguished by following the reference numeral with a dash and a second label to distinguish the similar components. If only the first reference numeral is used in the specification, the description applies to any similar component having the same first reference numeral, regardless of the second reference numeral.

FIG1 illustrates a diagram of a wireless communication system according to various aspects of the present disclosure;

FIG2 illustrates a diagram of a wireless communication system according to various aspects of the present disclosure;

FIG3 illustrates a diagram of a wireless communication system according to various aspects of the present disclosure;

FIG4 illustrates an example message flow between a receiving device and a transmitting device according to various aspects of the present disclosure;

FIG5 illustrates an example message flow between a receiving device and a transmitting device according to various aspects of the present disclosure;

FIG6 illustrates a block diagram of a receiving device for use in wireless communications according to various aspects of the present disclosure;

7 illustrates a block diagram of a receiving device for use in wireless communications in accordance with various aspects of the present disclosure;

FIG8 illustrates a block diagram of a receiving device for use in wireless communications according to various aspects of the present disclosure;

FIG9 illustrates a block diagram of a transmitting device for use in wireless communications in accordance with various aspects of the present disclosure;

FIG10 illustrates a block diagram of a transmitting device for use in wireless communications in accordance with various aspects of the present disclosure;

FIG11 illustrates a block diagram of a transmitting device for use in wireless communications in accordance with various aspects of the present disclosure;

FIG12 illustrates a block diagram of a UE for use in wireless communications in accordance with various aspects of the present disclosure;

FIG13 illustrates a block diagram of a base station (e.g., a base station forming part or all of an eNB) for use in wireless communications in accordance with various aspects of the present disclosure;

14 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure;

15 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure;

16 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure;

17 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure;

18 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure;

19 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure;

FIG20 is a flow chart illustrating an example of a method for wireless communication according to various aspects of the present disclosure; and

21 is a flow chart illustrating an example of a method for wireless communication in accordance with various aspects of the present disclosure.

DETAILED DESCRIPTION

This article describes a technique for improving CSF reporting. When a receiving device and a transmitting device are communicating on a channel, there is a probability (error probability) that a given transmission will be lost (e.g., not received or correctly decoded by the receiving device). In current multiple access communication systems such as LTE/LTE-A communication systems, the receiving device can provide a CSF report to the transmitting device. The report can indicate the data rate observed on the wireless channel given a defined error probability. In LTE/LTE-A communication systems, the error probability is defined as 10% in the 3GPP specification for a single transmission performed at a specific time. However, for some services, a 10% error probability may not be satisfactory. Alternatively or additionally, some services may find other important parameters. Current CSF reporting is aimed at maximizing spectrum efficiency and/or continuous (average) capacity. However, some services may be interested in other effects. For example, a service may want to know the error probability that can be achieved given a defined error probability, a variable latency or deadline (e.g., one signal retransmission or a one millisecond deadline), and each transmission link or combination of transmission links (e.g., a 2 GHz transmission link and a 5 GHz transmission link). As another example, a service may want to know the error probability that can be achieved given different data rates.

The transmitting device may also find it useful to receive, via CSF reporting, an identification of a device that is interfering with the wireless channel and a correlation of the interference from the interfering device with time and/or frequency. The transmitting device may also find it useful to receive, via CSF reporting, a correlation of parameters such as data rate with time and/or frequency. Such time and/or frequency-dependent information may enable the transmitting device to predict one or more CSF parameters. In one example, such a prediction may enable the transmitting device to adjust its response to temporary bursts in interference that significantly increase the percentage of non-acknowledgements (NAKs) received by the transmitting device.

The technology described herein can be used in various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are generally used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and the like. CDMA2000 covers IS-2000, IS-95, and IS-856 standards. IS-2000 versions 0 and A are commonly referred to as CDMA2000 1X, 1X, and the like. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), and the like. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (WiFi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM ^™, and the like. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP LTE and LTE-A are new versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies. However, for example purposes, the following description describes an LTE system, and although LTE terminology is used in most of the following description, the techniques are applicable to applications other than LTE applications.

The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Without departing from the spirit and scope of the present disclosure, the function and arrangement of the elements discussed can be changed. Various examples can appropriately omit, replace or add various processes or components. For example, the described method can be performed in a sequence different from the described sequence, and various steps can be added, omitted or combined. In addition, the features described with respect to some examples can be combined in other examples.

FIG1 illustrates a block diagram of a wireless communication system 100 according to various aspects of the present disclosure. The wireless communication system 100 may include multiple base stations 105 (e.g., base stations that constitute part or all of one or more eNBs), multiple UEs 115, and a core network 130. Some base stations 105 may communicate with the UEs 115 under the control of a base station controller (not shown), which in various examples may be part of the core network 130 or certain base stations 105. Some base stations 105 may communicate control information and/or user data with the core network 130 via a backhaul 132. In some examples, some base stations 105 may communicate directly or indirectly with each other over a backhaul link 134, which may be a wired or wireless transmission link. The wireless communication system 100 may support operation on multiple transmission links or carriers (waveform signals having different frequencies). A multicarrier transmitter may simultaneously transmit modulated signals on multiple carriers. For example, each communication link 125 may be a multicarrier signal modulated according to various radio technologies. Each modulated signal may be sent on a different carrier and may carry control information (eg, reference signal, control channel, etc.), overhead information, data, etc.

Base stations 105 can communicate wirelessly with UEs 115 via one or more base station antennas. Each base station 105 can provide communication coverage for a corresponding coverage area 110. In some examples, base stations 105 can be referred to as access points, base transceiver stations (BTS), radio base stations, radio transceivers, basic service sets (BSS), extended service sets (ESS), node Bs, evolved node Bs (eNBs), home node Bs, home e-node Bs, WLAN access points, WiFi nodes, or some other suitable terminology. The coverage area 110 for a base station 105 can be divided into sectors that constitute only a portion of the coverage area. The wireless communication system 100 can include different types of base stations 105 (e.g., macro base stations, micro base stations, and/or pico base stations). The base stations 105 can also utilize different radio technologies, such as cellular and/or WLAN radio access technologies. The base stations 105 can be associated with the same or different access networks or operator deployments (e.g., collectively referred to herein as "operators"). The coverage areas of different base stations 105 include coverage areas of the same or different types of base stations 105, utilizing the same or different radio technologies, and/or belonging to the same or different access networks, and the coverage areas of the different base stations 105 may overlap.

In some examples, the wireless communication system 100 may include an LTE/LTE-A communication system (or network). In other examples, the wireless communication system 100 may support wireless communications using one or more access technologies other than LTE/LTE-A. In an LTE/LTE-A communication system, the term evolved Node B or eNB may be used, for example, to describe one or a group of base stations 105.

The wireless communication system 100 may be or include a heterogeneous LTE/LTE-A network, in which different types of base stations 105 provide coverage for various geographic areas. For example, each base station 105 may provide communication coverage for a macrocell, a picocell, a femtocell, and/or other types of cells. Small cells such as picocells, femtocells, and/or other types of cells may include low-power nodes or LPNs. A macrocell, for example, covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with a service subscription with the network provider. A picocell, for example, covers a relatively small geographic area and may allow unrestricted access by UEs with a service subscription with the network provider. A femtocell, for example, covers a relatively small geographic area (e.g., a home) and, in addition to unrestricted access, may also provide restricted access by UEs associated with the femtocell (e.g., UEs in a closed subscriber group (CSG), UEs for users in a home, etc.). An eNB for a macrocell may be referred to as a macro eNB. An eNB for a picocell may be referred to as a pico eNB. Also, an eNB for a femto cell may be referred to as a femto eNB or a home eNB.An eNB may support one or more (eg, two, three, four, etc.) cells.

The core network 130 can communicate with the base stations 105 via a backhaul 132 (e.g., S1 application protocol, etc.). The base stations 105 can also communicate with each other, directly or indirectly, for example, via a backhaul link 134 (e.g., X2 application protocol, etc.) and/or via the backhaul 132 (e.g., through the core network 130). The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, the eNBs can have similar frame and/or gating timing, and transmissions from different eNBs can be approximately aligned in time. For asynchronous operation, the eNBs can have different frame and/or gating timing, and transmissions from different eNBs may not be aligned in time.

UEs 115 may be dispersed throughout the wireless communication system 100. UEs 115 may also be referred to by those skilled in the art as mobile devices, mobile stations, subscriber stations, mobile units, subscriber units, wireless units, remote units, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals, handsets, user agents, mobile clients, clients, or some other suitable terminology. UEs 115 may be cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, tablet computers, laptop computers, cordless phones, wearable items such as watches or glasses, wireless local loop (WLL) stations, and the like. UEs 115 may be capable of communicating with macro eNBs, pico eNBs, femto eNBs, relays, and the like. UEs 115 may also be capable of communicating over different types of access networks, such as cellular or other WWAN access networks or WLAN access networks. In some modes of communication with the UE 115, communication may occur over multiple communication links 125 or channels (i.e., component carriers), with each channel utilizing a component carrier between the UE 115 and one of multiple cells (e.g., serving cells, which in some cases may be operated by the same or different base stations 105).

The communication links 125 shown in the wireless communication system 100 may include uplink channels (using component carriers) for carrying uplink (UL) communications (e.g., transmissions from the UE 115 to the base station 105) and/or downlink channels (using component carriers) for carrying downlink (DL) communications (e.g., transmissions from the base station 105 to the UE 115). UL communications or transmissions may also be referred to as reverse link communications or transmissions, while DL communications or transmissions may also be referred to as forward link communications or transmissions.

As previously mentioned, most existing cellular systems implement a rate control process in which a receiving device (e.g., UE 115) reports channel-side information to a transmitting device (e.g., base station 105) for a given error probability on a reference measurement resource. For example, UE 115 may send an expected data rate R to base station 105 based on the channel conditions observed at UE 115 and a given estimated error probability P (e.g., a block error rate of 10%). Upon receiving the expected data rate R, base station 105 may determine a modulation and coding scheme (MCS) suitable for transmitting at or near the expected data rate R.

One problem with existing frameworks is that the base station 105 may not have enough information to select an MCS that takes into account different target error rates or different latency targets. For example, when the base station 105 targets very low error probabilities (e.g., less than 10%), it may be useful to use asymmetric step sizes and/or higher transmission redundancy in the presence of bursty interference. However, using the channel side information under the current reporting mechanism, it may be difficult or impossible to infer when such a condition exists. In addition, current methods of rate prediction do not take into account the use of multiple transmission links and, therefore, may provide inaccurate rate predictions in the channel side information reported to the transmitting device.

In view of these and other issues, one or more of the UE 115 or other devices of FIG1 can generate a channel-side information feedback message that provides information about the relationship between data rate parameters, error probability parameters, deadline parameters, and/or transmission link parameters. The information feedback message can include estimated values for one or more of the parameters based on assumed or given values for the remaining parameters. Adding the deadline parameters and/or transmission link parameters to the channel-side information feedback message can provide the base station 105 receiving the message with a better view of the channel conditions observed by the UE 115 and allow the base station 105 to select MCS and other transmission schemes to account for a wider variety of channel conditions and application requests.

Additionally or alternatively, one or more of the UE 115 or other devices of FIG. 1 may send a channel side information feedback message to the base station 105 that identifies the interfering device for the wireless channel and correlates the measured interference from the interfering device with time or frequency. In this manner, the base station 105 may identify and predict the interference trends of the identified interfering devices when selecting an MCS and other communication schemes and resource allocations for communicating with the UE 115. For example, the base station 105 may select a lower order MCS or higher transmission power for communicating with the UE 115 when interference from the interfering device is likely to occur. Additionally or alternatively, the base station 105 may avoid scheduling communications with the UE 115 when interference from the interfering device is likely to occur.

FIG2 shows a diagram of a wireless communication system 200 according to various aspects of the present disclosure. The wireless communication system 200 can include a receiving device 205-a and a transmitting device 210-a. In some examples, the receiving device 205-a can be an example of one or more aspects of the UE 115 described with reference to FIG1. In some examples, the transmitting device 210-a can be an example of one or more aspects of the base station 105 described with reference to FIG1.

As shown, receiving device 205-a and transmitting device 210-a can communicate over a single transmission link 215. As described above, receiving device 205-a can provide channel-side information feedback messages to transmitting device 210-a. In some examples, the channel-side information feedback messages can provide information about relationships between data rate parameters, error probability parameters, deadline parameters, and/or transmission link parameters. The information feedback messages can include estimated values for one or more of the parameters based on assumed or given values for the remaining parameters. Additionally or alternatively, the information feedback messages can identify interfering devices with respect to the wireless channel and correlate measured interference from the interfering devices with time or frequency.

Using the information provided by the receiving device 205-a in the channel-side information feedback message, the transmitting device 210-a can select an MCS or other transmission scheme for transmission to the receiving device 205-a. The transmitting device 210-a can also schedule transmissions to the receiving device 205-a on time or frequency resources based on the received channel-side information feedback message.

FIG3 shows a diagram of a wireless communication system 300 according to various aspects of the present disclosure. The wireless communication system 300 may include a receiving device 205-b and a transmitting device 210-b. In some examples, the receiving device 205-b may be an example of one or more aspects of the UE 115 described with reference to FIG1 and/or one or more aspects of the receiving device 205-a described with reference to FIG2. In some examples, the transmitting device 210-b may be an example of one or more aspects of the base station 105 described with reference to FIG1 and/or one or more aspects of the transmitting device 210-b described with reference to FIG2.

As shown, receiving device 205-b and transmitting device 210-b can communicate over multiple transmission links 315-a, 315-b, and 315-c. Although three transmission links 315 are shown, receiving device and transmitting device 210-b can communicate over any number of transmission links.

In some examples, the receiving device 205 can adaptively communicate with the transmitting device 210 over a single transmission link, as shown in FIG. 2 , or over multiple transmission links 315, as shown in FIG. 3 . As described above with respect to the systems 100 and 200 of FIG. 1 and FIG. 2 , the receiving device 205-b of FIG. 3 can provide a channel-side information feedback message to the transmitting device 210-b. In some examples, the channel-side information feedback message can provide information about relationships between data rate parameters, error probability parameters, deadline parameters, and/or transmission link parameters. The information feedback message can include estimated values for one or more of the parameters based on assumed or given values for the remaining parameters. Additionally or alternatively, the information feedback message can identify interfering devices on the wireless channel and correlate measured interference from the interfering devices with time or frequency. The transmitting device 210-b can use the information in the channel-side information feedback message to adaptively control transmissions to the receiving device 205-b.

Using the information provided by the receiving device 205-b in the channel-side information feedback message, the transmitting device 210-b may select an MCS or other transmission scheme for transmission to the receiving device 205-b. The transmitting device 210-a may also schedule transmissions to the receiving device 205-b on time or frequency resources based on the received channel-side information feedback message.

FIG4 illustrates an example message flow 400 between a receiving device 205-c and a transmitting device 210-c according to various aspects of the present disclosure. In some examples, the receiving device 205-c (e.g., a wireless device) can be an example of one or more aspects of the UE 115 described with reference to FIG1 and/or one or more aspects of the receiving device 205 described with reference to FIG2 and/or 3. In some examples, the transmitting device 210-c (e.g., a wireless device) can be an example of one or more aspects of the base station 105 described with reference to FIG1 and/or one or more aspects of the transmitting device 210 described with reference to FIG2 and/or 3.

The message flow 400 may be executed in an iterative manner and may begin, for example, at block 415 or block 435. At block 415, the receiving device 205-c may generate at least one channel side information feedback (CSF) message 420 for transmission to the transmitting device 210-c. The at least one CSF message may be generated, for example, based on measured conditions of a wireless channel. In some cases, the conditions of the wireless channel may be measured by the receiving device 205-c. In some cases, the wireless channel may include a wireless channel over which one or more of the messages shown in FIG. 4 may be transmitted.

At least one CSF message may provide information regarding a relationship between parameter sets. For example, a parameter set may include a data rate (R) parameter, an error probability (P) parameter, and at least one of a deadline (T) parameter or a transmission link (L) parameter. The data rate (R) parameter and the error probability (P) parameter may be similar to the data rate (R) parameter and the error probability (P) parameter already discussed. The deadline parameter may indicate, for example, the time or number of transmission attempts (e.g., a wait time) for completing signal transmission. The transmission link parameter may indicate, for example, the identity of one or more transmission links or the number of transmission links.

Generating the at least one CSF message may include estimating a value for each parameter in the first subset of the parameter set based on a given value for each parameter in the remaining subset of the parameter set. In other words, a relationship may be established such that the given value for each parameter in the remaining subset specifies the conditions under which the value for each parameter in the first subset is estimated. In some examples, at least a first parameter in the first subset of parameters may be input to the receiving device 205-c, and at least a second parameter in the remaining subset of parameters may be output conditioned on at least the first parameter. In this case, the at least one CSF message 420 sent to the transmitting device 210-c may include at least the second parameter as an output to the receiving device 205-c. In some cases, the given values for the parameters in the remaining subset of parameters may be received from the transmitting device 210-c and/or on the wireless channel whose conditions are being measured. In some cases, the given values for the parameters in the remaining subset of parameters may be independently determined (or configured) by the receiving device 205-c. A useful value for the deadline parameter may be a latency associated with a single retransmission of a signal. In some cases, the value of the deadline parameter may be based on the traffic type (and the value of the deadline parameter may vary for different traffic types).

An estimated value for at least one parameter in the first subset may be provided to the transmitting device 210-c as part or all of the information regarding the relationship of the parameter sets in at least one CSF message. Given values for one or more parameters in the remaining subset may also be provided to the transmitting device 210-c in at least one CSF message as part of the information regarding the relationship of the parameter sets, or in another message (particularly when the given values are determined by the receiving device 205-c or are unknown to the transmitting device 210-c).

Parameters may be assigned to the first subset or the remaining subset by the transmitting device 210-c and/or the receiving device 205-c. Under a first order of regulation or reporting, one parameter may be included in the first subset and one or more other parameters may be included in the remaining subset (e.g., {first subset|remaining subset} may be defined as: {R|P, T, L}, {L|P, T, R}, {T|P, R, L}, or {P|R, T, L}). Under a second order of regulation or reporting, two parameters may be included in the first subset and one or more other parameters may be included in the remaining subset (e.g., {R, L|P, T}, {R, P|T, L}, {R, T|P, L}, {P, T|R, L}, {P, L|R, T}, or {T, L|P, R}). In a third order of adjustment or reporting, three parameters may be included in a first subset and one or more other parameters may be included in the remaining subsets (e.g., {R, P, T|L}, {R, P, L|T}, {R, T, L|P}, {P, T, L|R}).

In some examples, multiple different values may be given for at least one parameter in the remaining subset, and the value of each parameter in the first subset may be estimated for each different value (or when the remaining subset includes multiple parameters for each different combination of values). For example, the first subset may include a data rate parameter, an error probability parameter, and/or a transmission link parameter, and the remaining subset may include a deadline parameter. In this example, multiple values may be given for the deadline parameter, and the value of each parameter in the first subset may be estimated for each given value of the deadline parameter. In another example, the first subset may include an error probability parameter, and the remaining subset may include a transmission link parameter. In this example, multiple different transmission links (e.g., radio links) may be indicated for the transmission link parameter, and the value of the error probability parameter may be estimated for each indicated transmission link. Additionally or alternatively, the value of the error probability parameter may be estimated based on simultaneous transmissions on multiple transmission links (e.g., in a carrier aggregation mode). The multiple different transmission links may include all possible transmission links or a selected subset of all possible transmission links.

Upon receiving at least one CSF message 420 at the transmitting device 210-c, the transmitting device 210-c may perform different operations depending on how the transmitting device 210-c is configured. In some alternatives, the transmitting device 210-c may be configured with or without the HARQ feedback path 465 and block 425. When the transmitting device 210-c is configured with the HARQ feedback path 465 and block 425, the transmitting device 210-c may determine whether to adjust one or more CSF parameters (e.g., R, P, T, and/or L parameters) received via the at least one CSF message 420. For example, the one or more CSF parameters may be adjusted based on HARQ feedback indicating whether information provided in one or more previously received CSF messages was considered correct or incorrect by the transmitting device 210-c. For example, when the HARQ feedback indicates that transmission acknowledgments (ACKs) are being received at a higher rate than the rate suggested by the CSF feedback, the value of a data rate parameter may be increased. Similarly, when HARQ feedback indicates that transmission non-acknowledgements (NAKs) are being received at a higher rate than the rate suggested by the CSF feedback, the value of the data rate parameter may be reduced. The adjusted and/or unadjusted CSF parameters may then be used at block 430. When the transmitting device 210-c is configured without the HARQ feedback path 465 and block 425, the CSF parameters included in the at least one CSF message 420 may be used directly at block 430.

The one or more CSF parameters may be used to select one or more transmission parameters at block 430. In some examples, the transmission parameters may include a modulation and coding scheme (MCS), a number of transmission links, and/or an identified transmission link.

At block 435, the transmission parameters selected at block 430, and possibly other transmission parameters, may be used to transmit one or more wireless signals 440 to the receiving device 205-c over the wireless channel. In some cases, the wireless signals 440 may be transmitted as part of one or more frames, subframes, and/or packets. In some cases, the wireless signals 440 may include one or more messages for configuring the receiving device 205-c to perform CSF reporting. For example, the one or more messages may indicate which parameters are assigned to the first subset and the remaining subsets, and may indicate one or more given values for one or more parameters in the remaining subsets.

The transmitted signals 440 may be received and decoded by the receiving device 205 - c , and an ACK or NAK 450 indicating whether each signal 440 (or group of signals) was successfully decoded may be sent by the receiving device 205 - c to the transmitting device 210 - c .

At block 455, a hybrid automatic repeat request (HARQ) process may be performed. When an ACK is not received for a signal (or group of signals), the HARQ process may trigger a retransmission of the signal at block 435. In some cases, the signal may be retransmitted using one or more different transmission parameters. In other cases, the signal may be retransmitted using previously used transmission parameters. When an ACK 460 is received for the signal (or group of signals), the HARQ process may allow processing to proceed to block 470, where the message flow 400, or a portion thereof, may be repeated.

FIG5 illustrates an example message flow 500 between a receiving device 205-d and a transmitting device 210-d according to various aspects of the present disclosure. In some examples, the receiving device 205-d (e.g., a wireless device) can be an example of one or more aspects of the UE 115 described with reference to FIG1 and/or one or more aspects of the receiving device 205 described with reference to FIG2, 3, and/or 4. In some examples, the transmitting device 210-d (e.g., a wireless device) can be an example of one or more aspects of the base station 105 described with reference to FIG1 and/or one or more aspects of the transmitting device 210 described with reference to FIG2, 3, and/or 4.

The message flow 500 may be executed in an iterative manner and may begin, for example, at block 515 or block 535. At block 515, the receiving device 205-d may generate at least one channel side feedback (CSF) message 520 for transmission to the transmitting device 210-d. The at least one CSF message may be generated, for example, based on measured interference on a wireless channel. In some cases, the wireless channel on which the interference is measured may include a wireless channel on which one or more messages shown in FIG. 5 may be sent. In some cases, an interfering device (e.g., a primary interferer) may be identified for the wireless channel based on the measured interference. In some cases, at least one additional interfering device may be identified for the wireless channel based on the measured interference. In some cases, it may be determined that the strength of the interference from the interfering device meets a threshold. In some cases, the interference may be measured in absolute terms (e.g., in dBm) or in relative terms (e.g., in dB relative to the serving cell signal strength). In some cases, the interference on the wireless channel may be measured by the receiving device 205-d.

At least one CSF message may indicate an interfering device for the wireless channel and a correlation of interference from the interfering device with time and/or frequency. The correlation of interference with time may include an estimated periodicity of interference from the interfering device. The correlation with frequency may include, for example, a correlation of interference with a subband, a frequency carrier, and/or a frequency band. In some cases, the at least one CSF message may include an identification of the interfering device.

In some examples, the at least one CSF message may further indicate at least one additional interfering device for the wireless channel and a correlation of interference from the at least one additional interfering device with time and/or frequency. The at least one CSF message may further indicate a correlation between measured interference from the interfering device and measured interference from the at least one additional interfering device.

The correlation with time may also or alternatively include a burst duration associated with the interference from the interfering device. In some examples, the burst duration may be determined by decoding a portion of the interfering signal and determining the burst duration based on the decoded portion of the interfering signal (e.g., the burst duration may be explicitly signaled in the interfering signal). In some examples, the burst duration may be estimated based on the measured interference.

In some cases, when at least one of an interference cancellation operation or a joint detection operation is performed, the receiving device 205-d can predict the impact on the data rate on the wireless channel and indicate the time and/or frequency correlation of the residual interference from the interfering device in at least one CSF report.

At block 575, upon receiving at least one CSF message 520 at the transmitting device 210-d, the transmitting device 210-d may use the correlation of interference from the interfering device with time and/or frequency to predict one or more CSF parameters. The transmitting device 210-d may then perform different operations depending on how the transmitting device 210-d is configured. In one configuration, the transmitting device 210-d may be configured with a HARQ feedback path 565 and block 525. In this configuration, the transmitting device 210-d may determine whether to adjust one or more predicted CSF parameters (e.g., R, P, T, and/or L parameters). For example, the predicted CSF parameters may be adjusted based on HARQ feedback indicating whether information provided in one or more previously received CSF messages was deemed correct or incorrect by the transmitting device 210-d. For example, the value of the predicted data rate parameter may be increased when the HARQ feedback indicates that transmission acknowledgments (ACKs) are being received at a higher rate than the rate suggested by the CSF feedback. Similarly, when HARQ feedback indicates that transmission non-acknowledgements (NAKs) are being received at a higher rate than the rate suggested by the CSF feedback, the value of the data rate parameter may be reduced. The adjusted and/or unadjusted CSF parameters may then be used at block 530. When the transmitting device 210-d is configured without the HARQ feedback path 565 and block 525, the predicted CSF parameters may be used directly at block 530.

One or more transmission parameters may be selected using the one or more CSF parameters at block 530. In some examples, the transmission parameters may include an MCS, a number of transmission links, and/or an identified transmission link.

At block 535, the transmission parameters selected at block 530, and possibly other transmission parameters, may be used to transmit one or more wireless signals 540 to the receiving device 205-d over the wireless channel. In some cases, the wireless signals 540 may be transmitted as part of one or more frames, subframes, and/or packets. In some cases, the wireless signals 540 may include one or more messages for configuring the receiving device 205-d to perform CSF reporting. For example, the one or more messages may indicate the wireless channels for which the correlation of interference from the interfering device is to be reported.

The transmitted signals 540 may be received and decoded by the receiving device 205 - d , and an ACK or NAK 550 indicating whether each signal 540 (or group of signals) was successfully decoded may be sent by the receiving device 205 - d to the transmitting device 210 - d .

At block 555, HARQ processing may be performed. When an ACK is not received for a signal (or group of signals), the HARQ process may trigger a retransmission of the signal at block 535. In some cases, the signal may be retransmitted using one or more different transmission parameters. In other cases, the signal may be retransmitted using previously used transmission parameters. When an ACK is received 560 for the signal (or group of signals), the HARQ process may allow processing to proceed to block 570, where the message flow 500, or a portion thereof, may be repeated.

In a variation of the message flow described with reference to FIG5 , at least one CSF message may indicate a dependency of at least one CSF parameter (e.g., a data rate parameter) on time and/or frequency. The dependency on frequency may include, for example, a dependency of the at least one CSF parameter on a subband, a frequency carrier, and/or a frequency band. The at least one CSF message may also include an estimated periodicity of the at least one CSF parameter in time and/or frequency.

FIG6 illustrates a block diagram 600 of a receiving device 205-e (e.g., a wireless device) for use in wireless communications, in accordance with various aspects of the present disclosure. In some examples, the receiving device 205-e can be an example of aspects of one or more of the UEs 115 described with reference to FIG1 and/or aspects of one or more of the receiving devices 205 described with reference to FIG2, 3, 4, and/or 5. The receiving device 205-e can also be a processor. The receiving device 205-e can include a receiver module 610, a wireless communication management module 620, and/or a transmitter module 630. Each of these components can communicate with each other.

The components of the receiving device 205-e may be implemented individually or collectively using one or more application-specific integrated circuits (ASICs) adapted to perform some or all of the applicable functions in hardware. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits (e.g., structured/platform ASICs, field-programmable gate arrays (FPGAs), and other semi-custom ICs) that can be programmed in any manner known in the art may be used. The functions of each unit may also be implemented, in whole or in part, using instructions embodied in a memory formatted to be executed by one or more general-purpose or application-specific processors.

In some examples, the receiver module 610 may include at least one radio frequency (RF) receiver, such as at least one RF receiver operable to receive transmissions on at least one RF band. In some examples, the at least one RF band may be used for LTE/LTE-A communications, as described, for example, with reference to Figures 1, 2, and/or 3. The receiver module 610 may be configured to receive various types of data and/or control signals (i.e., transmissions) on one or more transmission links of a wireless communication system, such as one or more transmission links of the wireless communication systems 100, 200, and/or 300 described with reference to Figures 1, 2, and/or 3.

In some examples, the transmitter module 630 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit on at least one RF band. In some examples, the at least one RF band may be used for LTE/LTE-A communications, as described, for example, with reference to Figures 1, 2, and/or 3. The transmitter module 630 may be used to transmit various types of data and/or control signals (i.e., transmissions) on one or more transmission links of a wireless communication system, such as one or more transmission links of the wireless communication systems 100, 200, and/or 300 described with reference to Figures 1, 2, and/or 3.

The wireless communication management module 620 can take different forms and can be used to manage wireless communications of the receiving device 205-e. In some examples, the wireless communication management module 620 can include a signal processing module 635, a channel measurement module 640, and/or a feedback module 645. Each of these components can communicate with each other.

In some examples, the signal processing module 635 can be used to process signals received and decoded via the receiver module 610. The signals can be received from a transmitting device over a wireless channel. In some cases, the signals can be received as part of one or more frames, subframes, and/or packets. In some cases, the signals can include one or more messages for configuring the receiving device 205-e to perform CSF reporting.

In some examples, the channel measurement module 640 can be used to measure the condition of the wireless channel on which the signal processed by the signal processing module 635 is received. The channel measurement module 640 can also or alternatively be used to measure interference on the wireless channel. In some cases, the interference can be measured in absolute terms (e.g., in dBm) or in relative terms (e.g., dB compared to the serving cell signal strength). The channel measurement value can be provided to the feedback module 645.

In some examples, the feedback module 645 can be configured to generate at least one CSF message based on the measured conditions of the wireless channel. The at least one CSF message can provide information related to a relationship between parameter sets. As an example, the parameter set can include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter.

In some examples, feedback module 645 may also or alternatively be configured to generate at least one CSF message based on measured interference on the wireless channel. In these examples, the at least one CSF message may indicate interfering devices on the wireless channel and a correlation of interference from the interfering devices with time and/or frequency.

The feedback module 645 may also be used to manage transmission of at least one CSF message to another device.The at least one CSF message may be sent via the transmitter module 630 .

FIG7 illustrates a block diagram 700 of a receiving device 205-f (e.g., a wireless device) for use in wireless communications according to various aspects of the present disclosure. In some examples, the receiving device 205-f can be an example of aspects of one or more of the UEs 115 described with reference to FIG1 and/or aspects of one or more of the receiving devices 205 described with reference to FIG2, 3, 4, 5, and/or 6. The receiving device 205-f can also be a processor. The receiving device 205-f can include a receiver module 610, a wireless communication management module 620-a, and/or a transmitter module 630. Each of these components can communicate with each other.

The components of the receiving device 205-f may be implemented individually or collectively using one or more ASICs adapted to perform some or all of the applicable functions in hardware. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits (e.g., structured/platform ASICs, FPGAs, and other semi-custom ICs) that can be programmed in any manner known in the art may be used. The functions of each unit may also be implemented, in whole or in part, using instructions embodied in a memory formatted to be executed by one or more general-purpose or application-specific processors.

In some examples, the receiver module 610 and the transmitter module 630 may be configured similarly to the receiver module 610 and the transmitter module 630 described with reference to FIG. 6 .

The wireless communication management module 620-a can take various forms and can be used to manage wireless communications with the receiving device 205-f. In some examples, the wireless communication management module 620-a can include a signal processing module 635, a channel measurement module 640, and/or a feedback module 645-a. Each of these components can communicate with each other.

In some examples, the signal processing module 635 and the channel measurement module 640 can be configured similarly to the signal processing module 635 and the channel measurement module 640 described with reference to FIG. 6 .

In some examples, the feedback module 645-a can include a feedback configuration module 705 and/or a feedback generation module 720. The feedback generation module 720 can be configured to generate at least one CSF message based on measured conditions of the wireless channel. The at least one CSF message can provide information related to a relationship between parameter sets. As an example, the parameter set can include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter. In some examples, the at least one CSF message can be generated as described with reference to FIG. 4.

The feedback generation module 720 may also be used to manage transmission of at least one CSF message to another device.The at least one CSF message may be sent via the transmitter module 630.

The feedback configuration module 705 can be used to configure parameters for which a CSF will be generated. In some examples, the feedback configuration module 705 can include a feedback parameter determination module 710 and a value determination module 715. In some examples, the feedback parameter determination module 710 can be used to determine a first subset of the parameter set and a remaining subset of the parameter set. The value of each parameter in the first subset can be estimated based on a given value of each parameter in the remaining subset. In some cases, the first subset and the remaining subset can be determined based on information (e.g., a configuration) received from another device (e.g., from a transmitting device and/or a base station).

In some examples, the value determination module 715 can be configured to determine a given value for each parameter in the remaining subset of parameters. In some cases, the given value can be received from another device (e.g., from a transmitting device and/or a base station). In some cases, the given values for the parameters in the remaining subset of parameters can be independently determined (or configured) by the receiving device 205-f.

FIG8 illustrates a block diagram 800 of a receiving device 205-g (e.g., a wireless device) for use in wireless communications according to various aspects of the present disclosure. In some examples, the receiving device 205-g can be an example of aspects of one or more of the UEs 115 described with reference to FIG1 and/or aspects of one or more of the receiving devices 205 described with reference to FIG2, 3, 4, 5, 6, and/or 7. The receiving device 205-g can also be a processor. The receiving device 205-g can include a receiver module 610, a wireless communication management module 620-b, and/or a transmitter module 630. Each of these components can communicate with each other.

The components of the receiving device 205-g may be implemented individually or collectively using one or more ASICs adapted to perform some or all applicable functions in hardware. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits (e.g., structured/platform ASICs, FPGAs, and other semi-custom ICs) that can be programmed in any manner known in the art may be used. The functions of each unit may also be implemented, in whole or in part, using instructions embodied in a memory formatted to be executed by one or more general-purpose or application-specific processors.

In some examples, the receiver module 610 and the transmitter module 630 may be configured similarly to the receiver module 610 and the transmitter module 630 described with reference to FIG. 6 .

The wireless communication management module 620-b can take various forms and can be used to manage wireless communications with the receiving device 205-g. In some examples, the wireless communication management module 620-b can include a signal processing module 635, a channel measurement module 640, and/or a feedback module 645-b. Each of these components can communicate with each other.

In some examples, the signal processing module 635 and the channel measurement module 640 can be configured similarly to the signal processing module 635 and the channel measurement module 640 described with reference to FIG. 6 .

In some examples, the feedback module 645-b may include a feedback generation module 720-a. The feedback generation module 720-a may be configured to generate at least one CSF message based on the interference measured by the channel measurement module 640. In some cases, the feedback generation module 720-a may include an interfering device identification module 805, a feedback time/frequency correlation module 810, a burst determination module 815, and an interference mitigation prediction module 820.

In some examples, the interfering device identification module 805 can be used to identify an interfering device (e.g., a primary interferer) for the wireless channel. The interfering device can be identified based on the measured interference. In some cases, it can be determined whether the intensity of interference from the interfering device meets a threshold. In some cases, the feedback generation module 720-a can include an identification of the interfering device for the wireless channel in at least one CSF message.

In some examples, the feedback time/frequency correlation module 810 can be configured to correlate interference from an interfering device with time and/or frequency. The correlation of the interference with time can include an estimated periodicity of the interference from the interfering device. The correlation of the interference with frequency can include, for example, correlation of the interference with a subband, a frequency carrier, and/or a frequency band. The feedback generation module 720-a can include the correlation in at least one CSF message.

In some examples, the interfering device identification module 805 may also be configured to identify at least one additional interfering device for the wireless channel based on the measured interference. In these examples, the feedback time/frequency correlation module 810 may also be configured to correlate the interference from each of the at least one additional interfering device with time and/or frequency. The feedback time/frequency correlation module 810 may also be configured to indicate a correlation between the measured interference from the interfering device and the measured interference from the at least one additional interfering device.

The correlation with time may also or alternatively include a burst duration associated with the interference from the interfering device. The burst duration may be determined by the burst determination module 815. In some examples, the burst duration may be determined by decoding a portion of the interfering signal and determining the burst duration based on the decoded portion of the interfering signal (e.g., the burst duration may be explicitly signaled in the interfering signal). In some examples, the burst duration may be estimated based on the measured interference.

In some cases, the interference suppression prediction module 820 can be used to predict the impact on the data rate on the wireless channel when at least one of the interference cancellation operation or the joint detection operation is performed. The feedback generation module 720-a can then indicate the correlation of the residual interference from the interfering device with time and/or frequency in at least one CSF message.

The feedback generation module 720 - a may also be used to manage transmission of at least one CSF message to another device. The at least one CSF message may be sent via the transmitter module 630 .

In a variation of the receiving device 205-g described with reference to FIG8, at least one CSF message may indicate a dependency of at least one CSF parameter (e.g., a data rate parameter) on time and/or frequency. The dependency on frequency may include, for example, a dependency of the at least one CSF parameter on a subband, a frequency carrier, and/or a frequency band. The at least one CSF message may also include an estimated periodicity of the at least one CSF parameter in time and/or frequency.

FIG9 illustrates a block diagram 900 of a transmitting device 210-e (e.g., a wireless device) for use in wireless communications, in accordance with various aspects of the present disclosure. In some examples, the transmitting device 210-e can be an example of aspects of one or more of the base stations 105 described with reference to FIG1 , and/or aspects of one or more of the transmitting devices 210 described with reference to FIG2 , 3 , 4 , and/or 5 . The transmitting device 210-e can also be a processor. The transmitting device 210-e can include a receiver module 910, a wireless communication management module 920, and/or a transmitter module 930. Each of these components can communicate with each other.

The components of the transmitting device 210-e may be implemented individually or collectively using one or more ASICs adapted to perform some or all applicable functions in hardware. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits (e.g., structured/platform ASICs, FPGAs, and other semi-custom ICs) that can be programmed in any manner known in the art may be used. The functions of each unit may also be implemented, in whole or in part, using instructions embodied in memory formatted to be executed by one or more general-purpose or application-specific processors.

In some examples, the receiver module 910 may include at least one RF receiver, such as at least one RF receiver operable to receive transmissions on at least one RF band. In some examples, the at least one RF band may be used for LTE/LTE-A communications, as described, for example, with reference to Figures 1, 2, and/or 3. The receiver module 910 may be configured to receive various types of data and/or control signals (i.e., transmissions) on one or more transmission links of a wireless communication system, such as one or more transmission links of the wireless communication systems 100, 200, and/or 300 described with reference to Figures 1, 2, and/or 3.

In some examples, the transmitter module 930 may include at least one RF transmitter, such as at least one RF transmitter operable to transmit on at least one RF band. In some examples, the at least one RF band may be used for LTE/LTE-A communications, as described, for example, with reference to Figures 1, 2, and/or 3. The transmitter module 930 may be used to transmit various types of data and/or control signals (i.e., transmissions) on one or more transmission links of a wireless communication system, such as one or more transmission links of the wireless communication systems 100, 200, and/or 300 described with reference to Figures 1, 2, and/or 3.

The wireless communication management module 920 can take different forms and can be used to manage wireless communications of the transmitting device 210-e. In some examples, the wireless communication management module 920 can include a signal generation module 935 and/or a feedback module 940. Each of these components can communicate with each other.

In some examples, the signal generation module 935 can be used to generate a wireless signal for transmission to a receiving device. The wireless signal can be transmitted over a wireless channel via the transmitter module 930. In some cases, the wireless signal can be transmitted as part of one or more frames, subframes, and/or packets. In some cases, the wireless signal can include one or more messages for configuring the receiving device to perform CSF reporting.

In some examples, feedback module 940 can be configured to process at least one CSF message received from a transmitting device via receiver module 910. The at least one CSF message can provide information regarding a relationship between a parameter set for a wireless channel. As examples, the parameter set can include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter.

In some examples, feedback module 940 may also or alternatively be configured to process at least one CSF message based on measured interference on the wireless channel. In these examples, the at least one CSF message may indicate an interfering device on the wireless channel and a correlation of interference from the interfering device with time and/or frequency.

The feedback module 940 may also be used to select or adjust at least one transmission parameter of the transmitting device 210-e when the adjustment of the at least one transmission parameter is indicated by one or more of a CSF parameter, desired transmission performance of the transmitting device 210-e, and/or HARQ feedback.

FIG10 illustrates a block diagram 1000 of a transmitting device 210-f (e.g., a wireless device) for use in wireless communications, in accordance with various aspects of the present disclosure. In some examples, the transmitting device 210-f can be an example of aspects of one or more of the base stations 105 described with reference to FIG1 , and/or aspects of one or more of the transmitting devices 210 described with reference to FIG2 , 3 , 4 , 5 , and/or 9 . The transmitting device 210-f can also be a processor. The transmitting device 210-f can include a receiver module 910, a wireless communication management module 920-a, and/or a transmitter module 930. Each of these components can communicate with each other.

The components of the transmitting device 210-f may be implemented individually or collectively using one or more ASICs adapted to perform some or all applicable functions in hardware. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits (e.g., structured/platform ASICs, FPGAs, and other semi-custom ICs) that can be programmed in any manner known in the art may be used. The functions of each unit may also be implemented, in whole or in part, using instructions embodied in memory formatted to be executed by one or more general-purpose or application-specific processors.

In some examples, the receiver module 910 and the transmitter module 930 may be configured similarly to the receiver module 910 and the transmitter module 930 described with reference to FIG. 9 .

The wireless communication management module 920-a can take different forms and can be used to manage wireless communications of the transmitting device 210-f. In some examples, the wireless communication management module 920-a can include a signal generation module 935 and/or a feedback module 940-a. Each of these components can communicate with each other.

In some examples, the signal generation module 935 can be configured similarly to the signal generation module 935 described with reference to FIG. 9 .

In some examples, feedback module 940-a can include a feedback configuration module 1005 and/or a feedback processing module 1020. Feedback configuration module 1005 can be used to configure parameters for which CSFs are to be generated and received. In some examples, feedback configuration module 1005 can include a feedback parameter determination module 1010 and a value determination module 1015. In some examples, feedback parameter determination module 1010 can be used to determine a first subset of a parameter set and a remaining subset of the parameter set. As an example, the parameter set can include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter. The value of each parameter in the first subset can be estimated (e.g., by a transmitting device and/or UE) based on a given value of each parameter in the remaining subset.

In some examples, the value determination module 1015 can be used to determine a given value for each parameter in the remaining subset of parameters.

In some examples, the feedback processing module 1020 can be used to process at least one CSF message received via the receiver module 910 (e.g., from a transmitting device and/or UE). The at least one CSF message can provide information related to the relationship of the configured parameter set of the wireless channel. In some examples, the feedback processing module 1020 can include a HARQ processing module 1025, a CSF parameter adjustment module 1030, and/or a transmission parameter selection module 1035. Each of these components can be in communication with each other.

In some examples, the HARQ processing module 1025 can be used to perform the operations of box 455 in Figure 4, the CSF parameter adjustment module 1030 can be used to perform the operations of box 425 in Figure 4, and the transmission parameter selection module 1035 can be used to perform the operations of box 430 in Figure 4.

FIG11 illustrates a block diagram 1100 of a transmitting device 210-g (e.g., a wireless device) for use in wireless communications, in accordance with various aspects of the present disclosure. In some examples, the transmitting device 210-g can be an example of aspects of one or more of the base stations 105 described with reference to FIG1 , and/or aspects of one or more of the transmitting devices 210 described with reference to FIG2 , 3 , 4 , 5 , 9 , and/or 10 . The transmitting device 210-g can also be a processor. The transmitting device 210-g can include a receiver module 910, a wireless communication management module 920-b, and/or a transmitter module 930. Each of these components can be in communication with one another.

The components of the transmitter device 210-g may be implemented individually or collectively using one or more ASICs adapted to perform some or all applicable functions in hardware. Alternatively, the functions may be performed by one or more other processing units (or cores) on one or more integrated circuits. In other examples, other types of integrated circuits (e.g., structured/platform ASICs, FPGAs, and other semi-custom ICs) that can be programmed in any manner known in the art may be used. The functions of each unit may also be implemented, in whole or in part, using instructions embodied in memory formatted to be executed by one or more general-purpose or application-specific processors.

In some examples, the receiver module 910 and the transmitter module 930 may be configured similarly to the receiver module 910 and the transmitter module 930 described with reference to FIG. 9 .

The wireless communication management module 920-b can take different forms and can be used to manage wireless communications of the transmitting device 210-g. In some examples, the wireless communication management module 920-b can include a signal generation module 935 and/or a feedback module 940-b. Each of these components can communicate with each other.

In some examples, the signal generation module 935 can be configured similarly to the signal generation module 935 described with reference to FIG. 9 .

In some examples, the feedback module 940-b may include a feedback processing module 1020-a. The feedback processing module 1020-a may be used to process at least one CSF message received via the receiver module 910 (e.g., from a transmitting device and/or a UE). The at least one CSF message may indicate a correlation of interference with a radio channel and interference from the interfering device with time and/or frequency. In some cases, the at least one CSF message may also indicate a correlation of interference with a radio channel and measured interference from the at least one additional interfering device with time and/or frequency. The at least one CSF message may also indicate a correlation between measured interference from the interfering device and measured interference from the at least one additional interfering device. In some examples, the feedback processing module 1020-a may include a HARQ processing module 1025, a CSF parameter prediction module 1105, a CSF parameter adjustment module 1030, and/or a transmission parameter selection module 1035. Each of these components may be in communication with one another.

The CSF parameter prediction module 1105 may be configured to predict one or more CSF parameters based on the identification of the interfering device and/or the correlation of the interference from the interfering device with time and/or frequency. Depending on the configuration of the transmitting device 210-g, the predicted CSF parameters may be forwarded to the CSF parameter adjustment module 1030 and/or the transmission parameter selection module 1035.

In some examples, the HARQ processing module 1025 can be used to perform the operations of box 455 in Figure 4, the CSF parameter adjustment module 1030 can be used to perform the operations of box 425 in Figure 4, and the transmission parameter selection module 1035 can be used to perform the operations of box 430 in Figure 4.

In a variation of the transmitting device 210-g described with reference to FIG11, at least one CSF message may indicate a dependency of at least one CSF parameter (e.g., a data rate parameter) on time and/or frequency. The dependency on frequency may include, for example, a dependency of the at least one CSF parameter on a subband, a frequency carrier, and/or a frequency band. The at least one CSF message may also include an estimated periodicity of the at least one CSF parameter in time and/or frequency.

FIG12 shows a block diagram 1200 of a UE 115 - a for use in wireless communications according to various aspects of the present disclosure. The UE 115 - a can have various configurations and can be included as or as part of a personal computer (e.g., a laptop computer, a netbook computer, a tablet computer, etc.), a cellular phone, a PDA, a digital video recorder (DVR), an internet appliance, a game console, an e-reader, etc. In some examples, the UE 115 - a can have an internal power source (not shown) such as a small battery to facilitate mobile operation. In some examples, the UE 115 - a can be an example of aspects of one or more of the UEs 115 described with reference to FIG1 , and/or aspects of one or more of the receiving devices 205 described with reference to FIG2 , 3, 4, 5, 6, 7 and/or 8. The UE 115 - a can be configured to implement at least some of the UE and/or receiving device features and functions described with reference to FIG1 , 2, 3, 4, 5, 6, 7 and/or 8.

The UE 115-a may include a UE processor module 1210, a UE memory module 1220, at least one UE transceiver module (represented by a UE transceiver module 1230), at least one UE antenna (represented by a UE antenna 1240), and/or a UE wireless communication management module 620-c. Each of these components may communicate with one another, directly or indirectly, over one or more buses 1235.

The UE memory module 1220 may include random access memory (RAM) and/or read-only memory (ROM). The UE memory module 1220 may store computer-readable, computer-executable code 1225 containing instructions that, when executed, are configured to cause the UE processor module 1210 to perform various functions related to wireless communication as described herein. Alternatively, the code 1225 may not be directly executed by the UE processor module 1210, but may be configured to cause the UE 115-a (e.g., when compiled and executed) to perform various functions as described herein.

The UE processor module 1210 may include an intelligent hardware device, such as a central processing unit (CPU), a microcontroller, an ASIC, etc. The UE processor module 1210 may process information received by the UE transceiver module 1230 and/or information to be sent to the UE transceiver module 1230 for transmission via the UE antenna 1240. The UE processor module 1210 may handle various aspects of communicating (or managing communications) on at least one wireless channel, either alone or in conjunction with the UE wireless communication management module 620-c.

The UE transceiver module 1230 may include a modem configured to modulate packets and provide the modulated packets to the UE antenna 1240 for transmission, and to demodulate packets received from the UE antenna 1240. The UE transceiver module 1230 may, in some examples, be implemented as one or more UE transmitter modules and one or more separate UE receiver modules. The UE transceiver module 1230 may support communications in one or more radio frequency bands. The UE transceiver module 1230 may be configured to communicate bidirectionally with one or more of the base stations 105 described with reference to FIG. 1 and/or one or more of the transmitting devices 210 described with reference to FIG. 2 , 3 , 4 , 5 , 9 , 10 , and/or 11 via the UE antenna 1240. Although the UE 115 - a may include a single UE antenna, there may be examples where the UE 115 - a may include multiple UE antennas 1240.

The UE state module 1250 may be used, for example, to manage transitions of the UE 115-a between the RRC idle state and the RRC connected state, and may communicate directly or indirectly with other components of the UE 115-a over one or more buses 1235. The UE state module 1250, or a portion thereof, may include a processor, and/or some or all of the functionality of the UE state module 1250 may be performed by and/or in conjunction with the UE processor module 1210.

The UE wireless communication management module 620-c can be configured to perform and/or manage some or all of the features and/or functions described with reference to Figures 1, 2, 3, 4, 5, 6, 7, and/or 8 related to CSF generation and transmission. The UE wireless communication management module 620-c, or a portion thereof, can include a processor, and/or some or all of the functions of the UE wireless communication management module 620-c can be performed by and/or in conjunction with the UE processor module 1210. In some examples, the UE wireless communication management module 620-c can be an example of the wireless communication management module 620 described with reference to Figures 6, 7, and/or 8.

FIG13 shows a block diagram 1300 of a base station 105-a (e.g., a base station that constitutes part or all of an eNB) for use in wireless communications in accordance with various aspects of the present disclosure. In some examples, the base station 105-a can be an example of aspects of one or more of the base stations 105 described with reference to FIG1 and/or aspects of one or more of the transmitting devices 905 described with reference to FIG9, 10, and/or 11. The base station 105-a can be configured to implement or facilitate at least some of the base station and/or transmitting device features and functions described with reference to FIG1, 2, 3, 4, 5, 9, 10, and/or 11.

The base station 105-a may include a base station processor module 1310, a base station memory module 1320, at least one base station transceiver module (represented by base station transceiver module 1350), at least one base station antenna (represented by base station antenna 1355), and/or a base station wireless communication management module 920-c. The base station 105-a may also include one or more of a base station communication module 1330 and/or a network communication module 1340. Each of these components may communicate with one another, directly or indirectly, over one or more buses 1335.

The base station memory module 1320 may include RAM and/or ROM. The base station memory module 1320 may store computer-readable, computer-executable code 1325 containing instructions that, when executed, are configured to cause the base station processor module 1310 to perform various functions related to wireless communications as described herein. Alternatively, the code 1325 may not be directly executed by the base station processor module 1310, but may be configured to cause the base station 105-a (e.g., when compiled and executed) to perform various functions as described herein.

The base station processor module 1310 may include an intelligent hardware device, such as a CPU, a microcontroller, an ASIC, etc. The base station processor module 1310 may process information received via the base station transceiver module 1310, the base station communication module 1330, and/or the network communication module 1340. The base station processor module 1310 may also process information to be sent to the transceiver module 1350 for transmission via the antenna 1355, to the base station communication module 1330 for transmission to one or more other base stations 105-b and 105-c, and/or to the network communication module 1340 for transmission to the core network 130-a, which may be an example of one or more aspects of the core network 130 described with reference to FIG. The base station processor module 1310 may handle various aspects of communicating (or managing communications) on at least one wireless channel, either alone or in conjunction with the base station wireless communication management module 920-c.

The base station transceiver module 1350 may include a modem configured to modulate packets and provide the modulated packets to a base station antenna 1355 for transmission, and to demodulate packets received from the base station antenna 1355. In some examples, the base station transceiver module 1350 may be implemented as one or more base station transmitter modules and one or more separate base station receiver modules. The base station transceiver module 1350 may support communications in one or more radio frequency bands. The base station transceiver module 1350 may be configured to communicate bidirectionally with one or more UEs or receiving devices, such as one or more of the UEs 115 described with reference to Figures 1 and/or 12 and/or one or more of the receiving devices 205 described with reference to Figures 2, 3, 4, 5, 6, 7, and/or 8, via antennas 1355. The base station 105-a may, for example, include multiple base station antennas 1355 (e.g., an antenna array). The base station 105-a may communicate with the core network 1345 via the network communication module 1340. Base station 105 - a may also communicate with other base stations, such as base stations 105 - b and 105 - c , using base station communication module 1330 .

The base station wireless communication management module 920-c can be configured to perform and/or manage some or all of the features and/or functions described with reference to Figures 1, 2, 3, 4, 5, 9, 10, and/or 11 regarding CSF configuration and processing. The base station wireless communication management module 920-c, or portions thereof, can include a processor, and/or some or all of the functions of the base station wireless communication management module 920-c can be performed by and/or in conjunction with the base station processor module 1310. In some examples, the base station wireless communication management module 920-c can be an example of the wireless communication management module 920 described with reference to Figures 9, 10, and/or 11.

FIG14 is a flow chart illustrating an example of a method 1400 for wireless communication according to various aspects of the present disclosure. For clarity, the method 1400 is described below with reference to a first device including aspects of one or more of the UEs 115 described with reference to FIG1 and/or 12 and/or aspects of one or more of the receiving devices 205 described with reference to FIG2, 3, 4, 6, 7, and/or 8. In some examples, the first device may execute one or more sets of codes to control functional elements of the first device to perform the functions described below.

At block 1405, method 1400 may include measuring, by the first device, conditions of a wireless channel. The operations at block 1405 may be performed using the wireless communication management module 620 described with reference to Figures 6, 7, 8, and/or 12 and/or the channel measurement module 640 described with reference to Figures 6, 7, and/or 8.

At block 1410, method 1400 may include generating at least one CSF message based on the measured condition of the wireless channel. The at least one CSF message may provide information regarding a relationship between parameter sets. As an example, the parameter set may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, wherein at least a first parameter in the parameter set is input to the first device and at least a second parameter in the parameter set is output conditioned on at least the first parameter. The operations at block 1410 may be performed using the wireless communication management module 620 described with reference to Figures 6, 7, 8, and/or 12, the feedback module 645 described with reference to Figures 6, 7, and/or 8, and/or the feedback generation module 720 described with reference to Figures 7 and/or 8.

At block 1415, method 1400 may include sending at least one CSF message to the second device, and the at least one CSF message may include at least the second parameter.The operations at block 1415 may be performed using the transmitter module 630 described with reference to FIGs.

Thus, method 1400 can provide wireless communication.It should be noted that method 1400 is merely one implementation, and the operations of method 1400 can be rearranged or otherwise modified such that other implementations are possible.

FIG15 is a flow chart illustrating an example of a method 1500 for wireless communication according to various aspects of the present disclosure. For clarity, the method 1500 is described below with reference to a first device including aspects of one or more of the UEs 115 described with reference to FIG1 and/or 12 and/or aspects of one or more of the receiving devices 205 described with reference to FIG2, 3, 4, 6, and/or 7. In some examples, the first device may execute one or more sets of codes to control functional elements of the first device to perform the functions described below.

At block 1505, method 1500 may include determining, by the first device and based on a parameter set including a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, a first subset of the parameter set and a remaining subset of the parameter set, wherein each parameter in the first subset has a value that can be estimated based on a given value of each parameter in the remaining subset. The operations at block 1505 may be performed using the wireless communication management module 620 described with reference to Figures 6, 7, and/or 12, the feedback module 645 described with reference to Figures 6 and/or 7, and/or the feedback configuration module 705 and/or the feedback parameter determination module 710 described with reference to Figure 7.

At block 1510, method 1500 may include receiving, at the first device, on the wireless channel, and/or determining, by the first device, a given value for at least one parameter in the remaining subset. The operations at block 1510 may be performed using the wireless communication management module 620 described with reference to Figures 6, 7, and/or 12, the feedback module 645 described with reference to Figures 6 and/or 7, and/or the feedback configuration module 705 and/or the value determination module 715 described with reference to Figure 7.

At block 1515, method 1500 may include measuring, by the first device, conditions of the wireless channel. The operations at block 1515 may be performed using the wireless communication management module 620 described with reference to Figures 6, 7, 8, and/or 12, and/or the channel measurement module 640 described with reference to Figures 6, 7, and/or 8.

At block 1520, method 1500 may include generating at least one CSF message based on the measured condition of the wireless channel. The at least one CSF message may provide information regarding the relationship of the parameter sets. Generating the at least one CSF feedback message may include estimating a value for each parameter in a first subset of the parameter sets. In some examples, the at least one CSF message may be generated as described with reference to FIG. 4. The operations at block 1520 may be performed using the wireless communication management module 620 described with reference to FIG. 6, 7, and/or 12, the feedback module 645 described with reference to FIG. 6 and/or 7, and/or the feedback generation module 720 described with reference to FIG.

At block 1525, method 1500 may include sending at least one CSF message to the second device. The operations at block 1525 may be performed using the transmitter module 630 described with reference to FIGs. 6, 7, and/or 8.

Thus, method 1500 can provide wireless communication.It should be noted that method 1500 is merely one implementation, and the operations of method 1500 can be rearranged or otherwise modified such that other implementations are possible.

FIG16 is a flow chart illustrating an example of a method 1600 for wireless communication according to various aspects of the present disclosure. For clarity, the method 1600 is described below with reference to a first device including aspects of one or more of the base stations 105 described with reference to FIG1 and/or 13 and/or aspects of one or more of the transmitting devices 210 described with reference to FIG2, 3, 4, 9, 10, and/or 11. In some examples, the first device may execute one or more sets of codes to control functional elements of the first device to perform the functions described below.

At block 1605, method 1600 may include transmitting a wireless signal to a second device over a wireless channel. The operations at block 1605 may be performed using the transmitter module 930 described with reference to FIGs. 9, 10, and/or 11.

At block 1610, method 1600 may include receiving at least one CSF message from the second device based on measured conditions of a wireless channel. The at least one CSF message may provide information regarding a relationship between parameter sets. As an example, the parameter set may include: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, wherein at least a first parameter in the parameter set is input to the second device, and at least a second parameter in the parameter set is output based on at least the first parameter. The at least one CSF feedback message received from the second device may include at least the second parameter. The operations at block 1610 may be performed using the receiver module 910 described with reference to Figures 9, 10, and/or 11, the wireless communication management module 920 described with reference to Figures 9, 10, 11, and/or 13, the feedback module 940 described with reference to Figures 9, 10, and/or 11, and/or the feedback processing module 1020 described with reference to Figures 10 and/or 11.

Thus, method 1600 can provide wireless communication.It should be noted that method 1600 is merely one implementation, and the operations of method 1600 can be rearranged or otherwise modified such that other implementations are possible.

FIG17 is a flow chart illustrating an example of a method 1700 for wireless communication according to various aspects of the present disclosure. For clarity, the method 1700 is described below with reference to a first device including aspects of one or more of the base stations 105 described with reference to FIG1 and/or 13 and/or aspects of one or more of the transmitting devices 210 described with reference to FIG2, 3, 4, 9, and/or 10. In some examples, the first device can execute one or more sets of code to control functional elements of the first device to perform the functions described below.

At block 1705, method 1700 may include determining, by the first device and based on a parameter set including a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter, a first subset of the parameter set and a remaining subset of the parameter set, wherein each parameter in the first subset has a value that can be estimated based on a given value of each parameter in the remaining subset. The operations at block 1705 may be performed using the wireless communication management module 920 described with reference to Figures 9, 10, and/or 13, the feedback module 940 described with reference to Figures 9 and/or 10, and/or the feedback configuration module 1005 and/or the feedback parameter determination module 1010 described with reference to Figure 10.

At block 1710, method 1700 may include transmitting an indication of at least one of the first subset or the remaining subset and/or a given value of at least one parameter in the remaining subset to the second device. The operations at block 1710 may be performed using the transmitter module 930 described with reference to FIG. 9 and/or 10.

At block 1715, method 1700 may include receiving at least one CSF message based on the measured conditions of the wireless channel from the second device. The at least one CSF message may provide information related to the relationship of the parameter sets. The operations at block 1715 may be performed using the receiver module 910 described with reference to Figures 9 and/or 10.

At block 1720, method 1700 may include modifying at least one transmission parameter of the first device. The operations at block 1720 may be performed using the wireless communication management module 920 described with reference to Figures 9, 10, and/or 13, the feedback module 940 described with reference to Figures 9 and/or 10, and/or the transmission parameter selection module 1035 described with reference to Figure 10.

Thus, method 1700 can provide wireless communication.It should be noted that method 1700 is merely one implementation, and the operations of method 1700 can be rearranged or otherwise modified such that other implementations are possible.

FIG18 is a flow chart illustrating an example of a method 1800 for wireless communication according to various aspects of the present disclosure. For clarity, the method 1800 is described below with reference to a first device including aspects of one or more of the UEs 115 described with reference to FIG1 and/or 12 and/or aspects of one or more of the receiving devices 205 described with reference to FIG2, 3, 5, 6, and/or 8. In some examples, the first device may execute one or more sets of codes to control functional elements of the first device to perform the functions described below.

At block 1805, method 1800 may include measuring, by the first device, interference on the wireless channel. In some cases, the interference may be measured in absolute terms (e.g., in dBm) or in relative terms (e.g., dB compared to the serving cell signal strength). The operations at block 1805 may be performed using the wireless communication management module 620 described with reference to FIG6, 8, and/or 12, and/or the channel measurement module 640 described with reference to FIG6 and/or 8.

At block 1810, method 1800 may include identifying an interfering device (e.g., a dominant interferer) for the wireless channel based on the measurement. The operations at block 1810 may be performed using the wireless communication management module 620 described with reference to Figures 6, 8, and/or 12, and/or the interfering device identification module 805 described with reference to Figure 8.

At block 1815, method 1800 may include generating at least one CSF message based on the measured interference on the wireless channel. The at least one CSF message may indicate an interfering device for the wireless channel and a correlation of interference from the interfering device with time or frequency. The correlation of interference with frequency may include, for example, a correlation of interference with a subband, a frequency carrier, and/or a frequency band. In some cases, the at least one CSF message may include an identification of the interfering device. The operations at block 1815 may be performed using the wireless communication management module 620 described with reference to Figures 6, 8, and/or 12, the feedback module 645 described with reference to Figures 6 and/or 8, the feedback generation module 720-a described with reference to Figure 8, and/or the feedback time/frequency correlation module 810 described with reference to Figure 8.

At block 1820, method 1800 may include sending at least one CSF message to the second device. The operations at block 1820 may be performed using the transmitter module 630 described with reference to FIGs.

In some examples, method 1800 may include determining that an intensity of interference from an interfering device satisfies a threshold.

In some examples, method 1800 may include estimating a periodicity in time and/or frequency of interference from an interfering device.At least one CSF message may include the estimated periodicity.

In some examples, method 1800 may include determining a burst duration associated with interference from an interfering device. The correlation of the interference may include a burst duration. In some examples, the burst duration may be determined by decoding a portion of an interference signal and determining the burst duration based on the decoded portion of the interference signal (e.g., the burst duration may be explicitly signaled in the interference signal). In some examples, the burst duration may be estimated based on the measured interference.

In some examples, method 1800 may further include identifying at least one additional interfering device for the wireless channel based on the measured interference. In these examples, the at least one CSF message may indicate the at least one additional interfering device for the wireless channel and a correlation of the measured interference from the at least one additional interfering device with time and/or frequency. The at least one CSF message may also indicate a correlation between the measured interference from the interfering device and the measured interference from the at least one additional interfering device.

In some examples, method 1800 may include predicting an impact on a data rate on a wireless channel when at least one of an interference cancellation operation or a joint detection operation is performed.Then, at least one CSF message may indicate a time and/or frequency dependency of residual interference from the interfering device.

Thus, method 1800 can provide wireless communication.It should be noted that method 1800 is merely one implementation, and the operations of method 1800 can be rearranged or otherwise modified such that other implementations are possible.

FIG19 is a flow chart illustrating an example of a method 1900 for wireless communication according to various aspects of the present disclosure. For clarity, the method 1900 is described below with reference to a first device including aspects of one or more of the base stations 105 described with reference to FIG1 and/or 13 and/or aspects of one or more of the transmitting devices 210 described with reference to FIG2, 3, 5, 9, and/or 11. In some examples, the first device may execute one or more sets of codes to control functional elements of the first device to perform the functions described below.

At block 1905, method 1900 may include transmitting a wireless signal to the second device over a wireless channel. In some cases, the wireless signal may include an indication to the first device of a wireless channel for which correlation of interference from an interfering device is to be reported. The operations at block 1905 may be performed using the transmitter module 930 described with reference to FIGs. 9 and/or 11.

At block 1910, method 1900 may include receiving at least one CSF message from a second device. The at least one CSF message may indicate an interfering device for a wireless channel and a correlation of interference from the interfering device with time and/or frequency. The operations at block 1910 may be performed using the receiver module 910 described with reference to FIG. 9 and/or 11, the wireless communication management module 920 described with reference to FIG. 9, 11, and/or 13, the feedback module 940 described with reference to FIG. 9 and/or 11, and/or the feedback processing module 1020-a described with reference to FIG. 11.

In some cases, the interference may be indicated in absolute terms (e.g., in dBm) or in relative terms (e.g., dB compared to the serving cell signal strength). In some cases, at least one CSF message may include an identification of the interfering device. In some cases, at least one CSF message may include an estimated periodicity of the interference from the interfering device in time and/or frequency. In some cases, the correlation of the interference with time may include the duration of a burst of interference from the interfering device. In some cases, the correlation of the interference may include a correlation of the residual interference (interference after performing at least one of an interference cancellation operation or a joint detection operation) of the interfering device with time and/or frequency.

In some examples, the at least one CSF message may further indicate at least one additional interfering device for the wireless channel and a correlation of the measured interference from the at least one additional interfering device with time and/or frequency. The at least one CSF message may further indicate a correlation between the measured interference from the interfering device and the measured interference from the at least one additional interfering device.

Thus, method 1900 can provide wireless communication.It should be noted that method 1900 is merely one implementation, and the operations of method 1900 can be rearranged or otherwise modified such that other implementations are possible.

20 is a flow chart illustrating an example of a method 2000 for wireless communication according to various aspects of the present disclosure. For clarity, the method 2000 is described below with reference to a first device including aspects of one or more of the UEs 115 described with reference to FIGs. 1 and/or 12 and/or aspects of one or more of the receiving devices 205 described with reference to FIGs. 2, 3, 5, 6, and/or 8. In some examples, the first device may execute one or more sets of code to control functional elements of the first device to perform the functions described below.

At block 2005, method 2000 may include measuring, by the first device, conditions of a wireless channel. The operations at block 2005 may be performed using the wireless communication management module 620 described with reference to FIG6, 8, and/or 12, and/or the channel measurement module 640 described with reference to FIG6 and/or 8.

At block 2010, method 2000 may include generating at least one CSF message based on the measured conditions of the wireless channel. The at least one CSF message may provide information regarding at least one parameter related to time and/or frequency. As an example, the at least one parameter may include a data rate parameter. As another example, the correlation of interference with frequency may include, for example, correlation of interference with a subband, a frequency carrier, and/or a frequency band. The operations at block 2010 may be performed using the wireless communication management module 620 described with reference to Figures 6, 8, and/or 12, the feedback module 645 described with reference to Figures 6 and/or 8, and/or the feedback generation module 720-a described with reference to Figure 8.

At block 2015, method 2000 may include sending at least one CSF message to the second device. The operations at block 2015 may be performed using the transmitter module 630 described with reference to FIGs. 6 and/or 8.

In some examples, method 2000 can include estimating a periodicity of at least one parameter in time and/or frequency. The CSF message can include the estimated periodicity.

Thus, method 2000 can provide wireless communication.It should be noted that method 2000 is merely one implementation, and the operations of method 2000 can be rearranged or otherwise modified such that other implementations are possible.

21 is a flow chart illustrating an example of a method 2100 for wireless communication according to various aspects of the present disclosure. For clarity, the method 2100 is described below with reference to a first device including aspects of one or more of the base stations 105 described with reference to FIGs. 1 and/or 13 and/or aspects of one or more of the transmitting devices 210 described with reference to FIGs. 2, 3, 5, 9, and/or 11. In some examples, the first device may execute one or more sets of codes to control functional elements of the first device to perform the functions described below.

At block 2105, method 2100 may include transmitting a wireless signal to a second device over a wireless channel. The operations at block 2105 may be performed using the transmitter module 930 described with reference to FIGs. 9 and/or 11.

At block 2110, method 2100 may include receiving at least one CSF message based on measured conditions of a wireless channel from a second device. The at least one CSF message may provide information regarding at least one parameter related to time and/or frequency. As an example, the at least one parameter may include a data rate parameter. As another example, the correlation of interference with frequency may include, for example, correlation of interference with a subband, a frequency carrier, and/or a frequency band. The operations at block 2110 may be performed using the receiver module 910 described with reference to Figures 9 and/or 11, the wireless communication management module 920 described with reference to Figures 9, 11, and/or 13, the feedback module 940 described with reference to Figures 9 and/or 11, and/or the feedback processing module 1020 described with reference to Figure 11.

In some cases, at least one CSF message may include periodicity in time and/or frequency of at least one parameter.

Thus, method 2100 can provide wireless communication.It should be noted that method 2100 is merely one implementation, and the operations of method 2100 can be rearranged or otherwise modified such that other implementations are possible.

In some examples, aspects of two or more of the methods 1400, 1500, 1800, and/or 2000 described with reference to Figures 14, 15, 18, and/or 20 can be combined. In some examples, aspects of two or more of the methods 1600, 1700, 1900, and/or 2100 described with reference to Figures 16, 17, 19, and/or 21 can be combined.

The specific embodiments described above in conjunction with the accompanying drawings describe examples and do not represent the only examples that can be implemented or are within the scope of the claims. When used in this specification, the terms "example" and "exemplary" mean "used as an example, instance, or illustration" and do not mean "preferred to" or "better than other examples." The specific embodiments include specific details for the purpose of providing an understanding of the described technology. However, these technologies can be implemented without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

Information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

The various exemplary blocks and modules described in conjunction with the disclosure herein may be implemented or executed with a general-purpose processor, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in an alternative embodiment, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, these functions can be stored as one or more instructions or codes on a non-transitory computer-readable medium or transmitted as one or more instructions or codes on a non-transitory computer-readable medium. Other examples and implementations are within the scope and spirit of this disclosure and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. The features used to implement the functions can also be physically located at various locations, including being distributed so that the various parts of the functions are implemented at different physical locations. In addition, as used herein, the "or" used in the list of items beginning with "at least one" in the claims indicates a separable list, so that, for example, "at least one of A, B, or C" refers to A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

Computer readable media include both computer storage media and communication media, and communication media include any media that helps to transmit a computer program from one place to another. Storage media can be any available media that can be accessed by a general or special computer. As an example and not limitation, computer readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other medium that can be used to carry or store the desired program code means with the form of an instruction or data structure and can be accessed by a general or special computer or a general or special processor. In addition, any connection is appropriately referred to as computer readable media. For example, if a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave is used to transmit software from a website, server or other remote source, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of medium. Disk and optical disk as used herein include compact disk (CD), laser disk, optical disk, digital versatile disk (DVD), floppy disk and blue disc, wherein disk usually reproduces data magnetically, and optical disk reproduces data optically with laser. Combinations of the above are also included within the scope of computer-readable media.

The preceding description of the present disclosure is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of the present disclosure. Throughout this disclosure, the terms "example" or "exemplary" refer to examples or instances and do not imply or require any preference for the examples. Therefore, the present disclosure is not limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (87)

1. A method for wireless communication, comprising: The condition of the wireless channel is measured by the first device; At least one channel-side information feedback message is generated based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information relating to a parameter set, the parameter set including: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter; wherein at least a first parameter of a first subset of the parameter set is input to the first device, and at least a second parameter of a remaining subset of the parameter set is output conditionally based on at least the first parameter; and Send the at least one channel-side information feedback message to the second device, the at least one channel-side information feedback message including at least the second parameter. 2. The method according to claim 1, wherein generating the at least one channel-side information feedback message comprises: The value of each parameter in the first subset of the parameter set is estimated based on the given value of each parameter in the remaining subset of the parameter set. 3. The method according to claim 2, further comprising: Receive a given value for at least one parameter from the remaining subset on the wireless channel. 4. The method according to claim 2, further comprising: The first device determines a given value for at least one parameter in the remaining subset. 5. The method of claim 2, wherein the at least one channel-side information feedback message includes an estimate of at least one parameter in the first subset. 6. The method of claim 2, wherein the first subset includes the data rate parameter, and the remaining subset includes the error probability parameter, the deadline parameter, and the transmission link parameter. 7. The method of claim 2, wherein the first subset includes the error probability parameter, and the remaining subset includes the data rate parameter, the deadline parameter, and the transmission link parameter. 8. The method of claim 2, wherein the first subset includes the deadline parameter, and the remaining subset includes the error probability parameter, the data rate parameter, and the transmission link parameter. 9. The method of claim 2, wherein the first subset includes the transmission link parameters, and the remaining subset includes the error probability parameter, the deadline parameter, and the data rate parameter. 10. The method of claim 2, wherein the first subset includes the data rate parameter and the transmission link parameter, and the remaining subset includes the error probability parameter and the deadline parameter. 11. The method of claim 2, wherein the first subset includes the data rate parameter, the deadline parameter, and the transmission link parameter, and the remaining subset includes the error probability parameter. 12. The method of claim 2, wherein the remaining subset includes the deadline parameter, and the value of at least one parameter in the first subset is estimated for a plurality of different given values of the deadline parameter. 13. The method of claim 2, wherein the first subset includes the error probability parameter, and the value of the error probability parameter is estimated based on a plurality of different radio links. 14. The method of claim 13, further comprising: The plurality of different radio links are selected as a subset of all possible radio links. 15. The method of claim 13, wherein the error probability parameter is based on simultaneous transmissions on the plurality of different radio links. 16. The method of claim 1, wherein the deadline parameter corresponds to the waiting time associated with a single retransmission of the signal. 17. A device for wireless communication, comprising: A unit used to measure the condition of a wireless channel; A unit for generating at least one channel-side information feedback message based on measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information relating to a parameter set, the parameter set including: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter; wherein at least a first parameter of a first subset of the parameter set is input to the device, and at least a second parameter of a remaining subset of the parameter set is output conditionally based on at least the first parameter; and A unit for sending the at least one channel-side information feedback message to another device, the at least one channel-side information feedback message including at least the second parameter. 18. The apparatus of claim 17, wherein the unit for generating the at least one channel-side information feedback message comprises: A unit for estimating the value of each parameter in a first subset of the parameter set based on a given value of each parameter in the remaining subset of the parameter set. 19. The apparatus of claim 18, further comprising: A unit for receiving a given value of at least one parameter in the remaining subset on the wireless channel. 20. The apparatus of claim 18, further comprising: A unit used to determine a given value for at least one parameter in the remaining subset. 21. The device of claim 18, wherein the at least one channel-side information feedback message includes an estimate of at least one parameter in the first subset. 22. The device of claim 18, wherein the first subset includes the data rate parameter, and the remaining subset includes the error probability parameter, the deadline parameter, and the transmission link parameter. 23. The device of claim 18, wherein the first subset includes the error probability parameter, and the remaining subset includes the data rate parameter, the deadline parameter, and the transmission link parameter. 24. The device of claim 18, wherein the first subset includes the deadline parameter, and the remaining subset includes the error probability parameter, the data rate parameter, and the transmission link parameter. 25. The device of claim 18, wherein the first subset includes the transmission link parameters, and the remaining subset includes the error probability parameter, the deadline parameter, and the data rate parameter. 26. The device of claim 18, wherein the first subset includes the data rate parameter and the transmission link parameter, and the remaining subset includes the error probability parameter and the deadline parameter. 27. The device of claim 18, wherein the first subset includes the data rate parameter, the deadline parameter, and the transmission link parameter, and the remaining subset includes the error probability parameter. 28. The device of claim 18, wherein the remaining subset includes the deadline parameter, and the value of at least one parameter in the first subset is estimated for a plurality of different given values of the deadline parameter. 29. The device of claim 18, wherein the first subset includes the error probability parameter, and the value of the error probability parameter is estimated based on a plurality of different radio links. 30. The apparatus of claim 29, further comprising: A unit for selecting the plurality of different radio links as a subset of all possible radio links. 31. The device of claim 29, wherein the error probability parameter is based on simultaneous transmission over the plurality of different radio links. 32. The device of claim 17, wherein the deadline parameter corresponds to the waiting time associated with a single retransmission of the signal. 33. An apparatus for wireless communication, comprising a processor, a memory in electronic communication with the processor, and instructions stored in the memory, the instructions being executable by the processor to: Measure the condition of the wireless channel; At least one channel-side information feedback message is generated based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information relating to a parameter set, the parameter set including: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter; wherein at least a first parameter of a first subset of the parameter set is input to the device, and at least a second parameter of a remaining subset of the parameter set is output conditionally based on at least the first parameter; and Send the at least one channel-side information feedback message to another device, the at least one channel-side information feedback message including at least the second parameter. 34. The apparatus of claim 33, wherein the instructions executable by the processor to generate the at least one channel-side information feedback message include instructions executable by the processor to perform the following operations: The value of each parameter in the first subset of the parameter set is estimated based on the given value of each parameter in the remaining subset of the parameter set. 35. The device of claim 34, wherein the instructions are executable by the processor to: Receive a given value for at least one parameter from the remaining subset on the wireless channel. 36. The device of claim 34, wherein the instructions are executable by the processor to: Determine a given value for at least one parameter in the remaining subset. 37. The device of claim 34, wherein the at least one channel-side information feedback message includes an estimate of at least one parameter in the first subset. 38. The device of claim 34, wherein the first subset includes the data rate parameter, and the remaining subset includes the error probability parameter, the deadline parameter, and the transmission link parameter. 39. The device of claim 34, wherein the first subset includes the data rate parameter and the transmission link parameter, and the remaining subset includes the error probability parameter and the deadline parameter. 40. The device of claim 33, wherein the deadline parameter corresponds to the waiting time associated with a single retransmission of the signal. 41. A non-transitory computer-readable medium for wireless communication, wherein the storage comprises instructions executable by a processor to cause a device to perform the following operations: Measure the condition of the wireless channel; At least one channel-side information feedback message is generated based on the measured conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information relating to a parameter set, the parameter set including: a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter; wherein at least a first parameter of a first subset of the parameter set is input to the device, and at least a second parameter of a remaining subset of the parameter set is output conditionally based on at least the first parameter; and Send the at least one channel-side information feedback message to another device, the at least one channel-side information feedback message including at least the second parameter. 42. The computer-readable medium of claim 41, wherein the instructions executable by the processor to cause the device to generate the at least one channel-side information feedback message include instructions executable by the processor to cause the device to perform the following operations: The value of each parameter in the first subset of the parameter set is estimated based on the given value of each parameter in the remaining subset of the parameter set. 43. The computer-readable medium of claim 42, wherein the instructions are executable by the processor to cause the device to: Receive a given value for at least one parameter from the remaining subset on the wireless channel. 44. A method for wireless communication, comprising: Sending wireless signals to a device over a wireless channel; and The device receives at least one channel-side information feedback message based on the measured condition of the wireless channel, wherein the at least one channel-side information feedback message provides information relating to a parameter set, the parameter set including at least one of: a data rate parameter, an error probability parameter, and a deadline parameter or a transmission link parameter; wherein at least a first parameter of a first subset of the parameter set is input to the device, and at least a second parameter of a remaining subset of the parameter set is output conditionally based on at least the first parameter, and the at least one channel-side information feedback message includes at least the second parameter. 45. The method of claim 44, wherein the at least one channel-side information feedback message includes an estimate of each parameter in a first subset of the parameter set, the estimate of each parameter in the first subset of the parameter set being based on a given value of each parameter in the remaining subset of the parameter set. 46. The method of claim 45, further comprising: Send an instruction to the device for at least one of the first subset or the remaining subset. 47. The method of claim 45, further comprising: Send a given value for at least one parameter from the remaining subset to the device. 48. The method of claim 45, wherein the at least one channel-side information feedback message includes an estimate of at least one parameter in the first subset. 49. The method of claim 45, wherein the first subset includes the data rate parameter, and the remaining subset includes the error probability parameter, the deadline parameter, and the transmission link parameter. 50. The method of claim 45, wherein the first subset includes the error probability parameter, and the remaining subset includes the data rate parameter, the deadline parameter, and the transmission link parameter. 51. The method of claim 45, wherein the first subset includes the deadline parameter, and the remaining subset includes the error probability parameter, the data rate parameter, and the transmission link parameter. 52. The method of claim 45, wherein the first subset includes the transmission link parameters, and the remaining subset includes the error probability parameter, the deadline parameter, and the data rate parameter. 53. The method of claim 45, wherein the first subset includes the data rate parameter and the transmission link parameter, and the remaining subset includes the error probability parameter and the deadline parameter. 54. The method of claim 45, wherein the first subset includes the data rate parameter, the deadline parameter, and the transmission link parameter, and the remaining subset includes the error probability parameter. 55. The method of claim 45, wherein the remaining subset includes the deadline parameter, and the value of at least one parameter in the first subset is estimated for a plurality of different given values of the deadline parameter. 56. The method of claim 45, wherein the first subset includes the error probability parameter, and the value of the error probability parameter is estimated based on a plurality of different radio links. 57. The method of claim 56, wherein the plurality of different radio links is a subset of all possible radio links. 58. The method of claim 56, wherein the error probability parameter is based on simultaneous transmissions on the plurality of different radio links. 59. The method of claim 44, wherein the deadline parameter corresponds to the waiting time associated with a single retransmission of the signal. 60. A device for wireless communication, comprising: A unit for transmitting wireless signals to another device over a wireless channel; and A unit for receiving at least one channel-side information feedback message from the other device regarding the measured condition of the wireless channel, wherein the at least one channel-side information feedback message provides information relating to a set of parameters, the set of parameters including at least one of a data rate parameter, an error probability parameter, and a deadline parameter or a transmission link parameter; wherein at least a first parameter of a first subset of the parameter set is input to the other device, and at least a second parameter of a remaining subset of the parameter set is output conditionally based on at least the first parameter, and the at least one channel-side information feedback message includes at least the second parameter. 61. The device of claim 60, wherein the at least one channel-side information feedback message includes an estimated value of each parameter in a first subset of the parameter set, the estimated value of each parameter in the first subset of the parameter set being based on a given value of each parameter in the remaining subset of the parameter set. 62. The device according to claim 61, further comprising: A unit for sending an indication to the other device for at least one of the first subset or the remaining subset. 63. The device according to claim 61, further comprising: A unit for sending a given value of at least one parameter in the remaining subset to the other device. 64. The device of claim 61, wherein the at least one channel-side information feedback message includes an estimate of at least one parameter in the first subset. 65. The apparatus of claim 61, wherein the first subset includes the data rate parameter, and the remaining subset includes the error probability parameter, the deadline parameter, and the transmission link parameter. 66. The device of claim 61, wherein the first subset includes the error probability parameter, and the remaining subset includes the data rate parameter, the deadline parameter, and the transmission link parameter. 67. The device of claim 61, wherein the first subset includes the deadline parameter, and the remaining subset includes the error probability parameter, the data rate parameter, and the transmission link parameter. 68. The apparatus of claim 61, wherein the first subset includes the transmission link parameters, and the remaining subset includes the error probability parameter, the deadline parameter, and the data rate parameter. 69. The apparatus of claim 61, wherein the first subset includes the data rate parameter and the transmission link parameter, and the remaining subset includes the error probability parameter and the deadline parameter. 70. The device of claim 61, wherein the first subset includes the data rate parameter, the deadline parameter, and the transmission link parameter, and the remaining subset includes the error probability parameter. 71. The device of claim 61, wherein the remaining subset includes the deadline parameter, and the value of at least one parameter in the first subset is estimated for a plurality of different given values of the deadline parameter. 72. The device of claim 61, wherein the first subset includes the error probability parameter, and the value of the error probability parameter is estimated based on a plurality of different radio links. 73. The device of claim 72, wherein the plurality of different radio links is a subset of all possible radio links. 74. The device of claim 72, wherein the error probability parameter is based on simultaneous transmission over the plurality of different radio links. 75. The apparatus of claim 60, wherein the deadline parameter corresponds to the waiting time associated with a single retransmission of the signal. 76. An apparatus for wireless communication, comprising a processor, a memory in electronic communication with the processor, and instructions stored in the memory, the instructions being executable by the processor to: Sending wireless signals to another device on a wireless channel; and The device receives at least one channel-side information feedback message based on the measured channel conditions of the wireless channel, wherein the at least one channel-side information feedback message provides information relating to a set of parameters, the set of parameters including at least one of a data rate parameter, an error probability parameter, and a deadline parameter or a transmission link parameter; wherein at least a first parameter of a first subset of the parameter set is input to the other device, and at least a second parameter of a remaining subset of the parameter set is output conditionally based on at least the first parameter, and the at least one channel-side information feedback message includes at least the second parameter. 77. The device of claim 76, wherein the at least one channel-side information feedback message includes an estimate of each parameter in a first subset of the parameter set, the estimate of each parameter in the first subset of the parameter set being based on a given value of each parameter in the remaining subset of the parameter set. 78. The apparatus of claim 77, wherein the instructions are executable by the processor to: Send an instruction to the other device for at least one of the first subset or the remaining subset. 79. The apparatus of claim 77, wherein the instructions are executable by the processor to: Send a given value of at least one parameter from the remaining subset to the other device. 80. The device of claim 77, wherein the at least one channel-side information feedback message includes an estimate of at least one parameter in the first subset. 81. The device of claim 77, wherein the first subset includes the data rate parameter, and the remaining subset includes the error probability parameter, the deadline parameter, and the transmission link parameter. 82. The device of claim 77, wherein the first subset includes the data rate parameter and the transmission link parameter, and the remaining subset includes the error probability parameter and the deadline parameter. 83. The device of claim 76, wherein the deadline parameter corresponds to the waiting time associated with a single retransmission of the signal. 84. A non-transitory computer-readable medium for wireless communication, wherein the storage comprises instructions executable by a processor to cause a device to perform the following operations: Sending wireless signals to another device on a wireless channel; and The device receives at least one channel-side information feedback message based on the measured condition of the wireless channel, wherein the at least one channel-side information feedback message provides information relating to a set of parameters, the set of parameters including at least one of a data rate parameter, an error probability parameter, and a deadline parameter or a transmission link parameter; wherein at least a first parameter of a first subset of the parameter set is input to the other device, and at least a second parameter of a remaining subset of the parameter set is output conditionally based on at least the first parameter, and the at least one channel-side information feedback message includes at least the second parameter. 85. The computer-readable medium of claim 84, wherein the at least one channel-side information feedback message includes an estimate of each parameter in a first subset of the parameter set, the estimate of each parameter in the first subset of the parameter set being based on a given value of each parameter in the remaining subset of the parameter set. 86. The computer-readable medium of claim 85, wherein the instructions are executable by the processor to: Send an instruction to the device for at least one of the first subset or the remaining subset. 87. The computer-readable medium of claim 85, wherein the instructions are executable by the processor to cause the device to: Send a given value of at least one parameter from the remaining subset to the other device.