Techniques for signal strength monitoring

Abstract

Methods, systems, and devices for wireless communication are described. A wireless station (STA) may monitor characteristics of signaling with an access point (AP) in a wireless local area network (WLAN). If a characteristic of the signaling from the AP falls below a first threshold, the STA may send a feedback message in a first portion of the bandwidth and refrain from sending a copy feedback message in a second portion of the bandwidth. In some examples, the STA may enable or disable replication for transmitting the feedback message based on a feedback message transmission power threshold. Additionally or alternatively, the STA may monitor signaling on the two connected transmit chains. Based on a coding rate threshold or a signal strength threshold, the STA may increase the output power of a chain with lower signal strength to give an additional link budget for transmission to the AP.

Description

[0001] Cross-references

[0002] This patent application claims priority to Chinese PCT application No. PCT / CN2022 / 093267, entitled “TECHNIQUES FOR SIGNAL STRENGTH MONITORING”, filed by Tao et al. on May 17, 2022, which is assigned to the assignee of this application. Background Art

[0003] The following relates to wireless communications, including techniques for signal strength monitoring.

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems can be multiple access systems that can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). A wireless network (e.g., a wireless local area network (WLAN), such as a Wi-Fi (i.e., an Institute of Electrical and Electronics Engineers (IEEE) 802.11) network) may include an access point (AP) that can communicate with one or more stations (STAs) or mobile devices. An AP may be coupled to a network such as the Internet, and may enable mobile devices to communicate via the network (or communicate with other devices coupled to the access point). A wireless device may communicate bidirectionally with a network device. For example, in a WLAN, a STA may communicate with an associated AP via a downlink (DL) and an uplink (UL). A DL (or forward link) may refer to a communication link from an AP to a STA, and a UL (or reverse link) may refer to a communication link from a station to an AP.

[0005] In some cases, the STA may provide feedback to the AP in response to the DL transmission. However, for some use cases, conventional feedback techniques may be insufficient or suboptimal in some current configurations. Summary of the invention

[0006] The described technology relates to improved methods, systems, devices, or apparatuses that support technology for signal strength monitoring. In general, the described technology provisions enable a wireless station (STA) to monitor characteristics of signaling from an access point (AP) in a wireless local area network (WLAN) and adjust transmission parameters based on the monitoring. In some examples, the STA may monitor the received signal strength indicator (RSSI) of the downlink (DL) transmission from the AP. If the RSSI of the signaling from the AP drops below a first threshold, the STA may send a feedback message in a first portion of the bandwidth and refrain from sending a duplicate feedback message in a second portion of the bandwidth. If the RSSI subsequently improves and rises above a second threshold, the STA may return to sending duplicate feedback messages that span the bandwidth together.

[0007] In some examples, the STA may determine whether to enable or disable duplicate feedback messages for signaling based on a feedback message transmit power threshold. The duplicate feedback message may be associated with a first transmit power, and the single feedback message in the first portion of the bandwidth may be associated with a second transmit power. The STA may determine a difference between the first transmit power and the second transmit power, and may compare the difference to the feedback message transmit power threshold. If the difference is greater than the feedback message transmit power threshold, the STA may continue to send (or return to sending) duplicate feedback messages. If the difference is less than the feedback message transmit power threshold, the STA may disable duplicate feedback messages and may instead send feedback messages in the first portion of the bandwidth.

[0008] Additionally or alternatively, the STA may monitor the decoding rate of packets received in the signaling. If the decoding rate drops below a first threshold, the STA may send a single feedback message without duplication. If the decoding rate subsequently increases above a second threshold, the STA may return to sending duplicate feedback messages that span the bandwidth together. Additionally or alternatively, the STA may monitor signaling on two connected transmit chains. If the decoding rate drops below a rate threshold and the difference between the RSSIs of the two chains is above a difference threshold, the STA may increase the output power of the chain with the lower RSSI to give additional link budget for transmission to the AP.

[0009] A method for wireless communication at a wireless station is described. The method may include monitoring a signal from an access point; comparing a characteristic of the signal to a threshold, the characteristic being determined based on the monitoring and being one of: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal; sending a first instance of a feedback message related to the signal in a first portion of a bandwidth; and refraining from concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold.

[0010] An apparatus for wireless communication at a wireless station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to monitor a signal from an access point; compare a characteristic of the signal to a threshold, the characteristic being determined based on the monitoring and being one of: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal; send a first instance of a feedback message related to the signal in a first portion of a bandwidth; and refrain from concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold.

[0011] Another apparatus for wireless communication at a wireless station is described. The apparatus may include means for monitoring a signal from an access point; means for comparing a characteristic of the signal to a threshold, the characteristic being determined based on the monitoring and being one of: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal; means for sending a first instance of a feedback message related to the signal in a first portion of a bandwidth; and means for refraining from concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold.

[0012] A non-transitory computer-readable medium storing code for wireless communication at a wireless station is described. The code may include instructions executable by a processor to: monitor a signal from an access point; compare a characteristic of the signal to a threshold, the characteristic being determined based on the monitoring and being one of: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal; send a first instance of a feedback message related to the signal in a first portion of a bandwidth; and refrain from concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold.

[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for: monitoring a second signal from the access point after transmitting; determining the same characteristic as identified from the signal based on the second signal and comparing to a second threshold; and transmitting a second feedback message related to the second signal, wherein the second feedback message may be transmitted using frequency-based replication based on the same characteristic being greater than the second threshold.

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second feedback message spans a bandwidth.

[0015] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second feedback message includes a non-high-throughput acknowledgment message.

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the threshold may be a received signal strength indicator threshold and the characteristic may be a received signal strength indicator associated with the signal.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the threshold may be a coding rate threshold and the characteristic may be a coding rate associated with a modulation and coding scheme of a set of packets received in a signal.

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a coding rate may be based on a number of spatial streams associated with a signal.

[0019] A method for wireless communication at a wireless station is described. The method may include monitoring a first signal from an access point and a second signal from an access point using a first transmit chain of the wireless station and a second transmit chain of the wireless station, respectively; comparing a decoding rate determined based on the monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both; comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined based on the monitoring; and increasing a transmit power associated with the first transmit chain based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0020] An apparatus for wireless communication at a wireless station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to monitor a first signal from an access point and a second signal from an access point using a first transmission chain of the wireless station and a second transmission chain of the wireless station, respectively; compare a decoding rate determined based on the monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both; compare a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined based on the monitoring; and increase a transmission power associated with the first transmission chain based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0021] Another apparatus for wireless communication at a wireless station is described. The apparatus may include means for monitoring a first signal from an access point and a second signal from an access point using a first transmit chain of the wireless station and a second transmit chain of the wireless station, respectively; means for comparing a decoding rate determined based on the monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both; means for comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined based on the monitoring; and means for increasing a transmit power associated with the first transmit chain based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0022] A non-transitory computer-readable medium storing code for wireless communication at a wireless station is described. The code may include instructions executable by a processor to perform the following operations: monitor a first signal from an access point and a second signal from an access point using a first transmission chain of the wireless station and a second transmission chain of the wireless station, respectively; compare a decoding rate determined based on the monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both; compare a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined based on the monitoring; and increase a transmission power associated with the first transmission chain based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0023] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for transmitting a third signal to the access point using the first transmit chain of the wireless station according to the increased transmit power.

[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a coding rate may be based on a number of spatial streams associated with the first signal, the second signal, or both.

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first signal includes a first instance of a downlink message and the second signal includes a second instance of the downlink message.

[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first signal and the second signal may be the same signal.

[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first transmit chain and the second transmit chain may be associated with a multiple-input multiple-output configuration at a wireless station.

[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the coding rate comprises a combined coding rate associated with a modulation and coding scheme of a set of packets received in the first signal and the second signal.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a coding rate may be associated with a modulation and coding scheme of a set of packets received in the first signal.

[0030] A method for wireless communication at a wireless station is described. The method may include monitoring a signal from an access point; comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with feedback messages about the signal; and transmitting a first instance of a feedback message in a first portion of a bandwidth according to the first feedback type or the second feedback type based on the difference satisfying the threshold.

[0031] An apparatus for wireless communication at a wireless station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to monitor a signal from an access point; compare a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with feedback messages about the signal; and transmit a first instance of a feedback message in a first portion of a bandwidth according to the first feedback type or the second feedback type based on the difference satisfying the threshold.

[0032] Another apparatus for wireless communication at a wireless station is described. The apparatus may include means for monitoring a signal from an access point; means for comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with feedback messages about the signal; and means for transmitting a first instance of the feedback message in a first portion of a bandwidth according to the first feedback type or the second feedback type based on the difference satisfying the threshold.

[0033] A non-transitory computer-readable medium storing code for wireless communication at a wireless station is described. The code may include instructions executable by a processor to: monitor a signal from an access point; compare a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with feedback messages about the signal; and transmit a first instance of a feedback message in a first portion of a bandwidth according to the first feedback type or the second feedback type based on the difference satisfying the threshold.

[0034] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for suppressing concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the difference being less than a threshold, wherein the first instance of the feedback message may be sent according to a second feedback type.

[0035] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a first instance of the feedback message spans a first portion of a bandwidth.

[0036] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for the following actions: sending a second instance of the feedback message, wherein the first instance of the feedback message and the second instance of the feedback message can be sent according to a first feedback message type based on a difference being greater than a threshold.

[0037] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first instance of the feedback message and the second instance of the feedback message may be sent using frequency-based replication.

[0038] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first instance of the feedback message includes an acknowledgment message of the signal, and the second instance of the feedback message includes a copy of the acknowledgment message.

[0039] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first feedback message type includes a non-high-throughput acknowledgment message type.

[0040] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first instance of the feedback message and the second instance of the feedback message span a bandwidth. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 An example of a wireless communication system supporting techniques for signal strength monitoring in accordance with aspects of the present disclosure is illustrated.

[0042] Figure 2 An example of a wireless communication system supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is illustrated.

[0043] Figure 3 An example of a wireless communication system supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is illustrated.

[0044] Figure 4 An example of a process flow supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is illustrated.

[0045] Figure 5 An example of a process flow supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is illustrated.

[0046] Figure 6 and Figure 7 A block diagram of a device supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is shown.

[0047] Figure 8 A block diagram of a communications manager supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is shown.

[0048] Fig. 9 A diagram of a system including a device supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is shown.

[0049] Figures 10 to 13 A flow chart illustrating a method of supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0050] In a wireless local area network (WLAN), a wireless device, which may be referred to as a station (STA), may communicate with an associated access point (AP) via a downlink (DL) and an uplink (UL). In some cases, when the received signal strength drops below a threshold (e.g., -80 decibel-milliwatts (dBm)), the STA may experience a reduction in DL throughput from the AP. The reduction in throughput may be based on reduced reception at the AP. For example, the AP may reduce the decoding rate of DL transmissions based on feedback messages received at the AP, where the received signal strength of the feedback messages may drop below the sensitivity point at the AP. Additionally or alternatively, the UL throughput may be reduced based on the orientation of the STA's antenna relative to the AP. For example, the imbalance of the transmit power of the STA's antenna may be based on the orientation of the STA's antenna. It may be beneficial to enable the STA to adjust feedback, transmit parameters, or both to improve the throughput and reliability of communication with the AP.

[0051] According to the techniques described herein, a STA may monitor characteristics of signaling from an AP and adjust transmission parameters based on the monitoring. In some examples, a STA may monitor a received signal strength indicator (RSSI) of a DL transmission from an AP. If the RSSI of the signaling from the AP drops below a first threshold (e.g., -80 dBm), the STA may send a feedback message in a first portion of the bandwidth (e.g., a feedback message spanning 20 MHz in an 80 megahertz (MHz) or 160 MHz bandwidth) and refrain from sending duplicate feedback messages in the remainder of the bandwidth. If the RSSI subsequently improves and rises above a second threshold (e.g., -76 dBm), the STA may return to sending duplicate feedback messages spanning the bandwidth (e.g., multiple feedback messages each spanning 20 MHz in an 80 MHz or 160 MHz bandwidth).

[0052] Additionally or alternatively, the STA may monitor the decoding rate of packets received in the signaling. If the decoding rate drops below a first threshold (e.g., an index of a modulation and coding scheme (MCS), such as MCS4), the STA may send a single feedback message without duplication. If the decoding rate subsequently increases above a second threshold (e.g., the number of spatial streams, such as two spatial streams), the STA may return to sending duplicate feedback messages across the bandwidth. Additionally or alternatively, the STA may monitor signaling on two connected transmit chains. If the decoding rate drops below a rate threshold and the difference between the RSSIs of the two chains is above a difference threshold, the STA may increase the output power of the chain with the lower RSSI to give additional link budget for transmission to the AP.

[0053] In some cases, the STA may dynamically enable or disable duplicate feedback messages for signaling, for example, based on a feedback message transmit power threshold. The duplicate feedback message may be configured with a first transmit power, while a single feedback message (e.g., without duplication) in the first portion of the bandwidth may be configured with a second transmit power. The STA may determine a difference between the first transmit power and the second transmit power, and may compare the difference to the feedback message transmit power threshold. If the difference is greater than the feedback message transmit power threshold, the STA may continue to send (or return to sending) duplicate feedback messages. If the difference is less than the feedback message transmit power threshold, the STA may disable duplicate feedback messages and may instead send a single feedback message in the first portion of the bandwidth.

[0054] Various aspects of the present disclosure are first described in the context of wireless communication systems. Various aspects of the present disclosure are further illustrated by and described with reference to transmission schemes, process flows, device diagrams, system diagrams, and flow charts involving techniques for signal strength monitoring.

[0055] Figure 1 A wireless communication system 100 supporting techniques for signal strength monitoring according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 100 may be a WLAN (also referred to as a Wi-Fi network) configured according to various aspects of the present disclosure. The wireless communication system 100 may include an AP 105 and a plurality of associated STAs 115, which may represent devices such as mobile stations, personal digital assistants (PDAs), other handheld devices, netbooks, notebook computers, tablet computers, laptops, display devices (e.g., TVs, computer monitors, etc.), printers, etc. The AP 105 and the associated STAs 115 may represent a basic service set (BSS) or an extended service set (ESS). The various STAs 115 in the network can communicate with each other through the AP 105. Also shown is a coverage area 110 of the AP 105, which may represent a basic service area (BSA) of the wireless communication system 100. Extended network stations associated with the wireless communication system 100 may be connected to a wired or wireless distribution system that may allow multiple APs 105 to be connected in an ESS.

[0056] Although not in Figure 1100, but the STA 115 may be located at the intersection of more than one coverage area 110 and may be associated with more than one AP 105. A single AP 105 and a set of associated STAs 115 may be referred to as a BSS. An ESS is a collection of connected BSSs. A distribution system (not shown) may be used to connect the APs 105 in an ESS. In some cases, the coverage area 110 of the AP 105 may be divided into sectors (also not shown). The wireless communication system 100 may include APs 105 of different types (e.g., urban areas, home networks, etc.) with different and overlapping coverage areas 110. Two STAs 115 may also communicate directly via a direct wireless link 125, regardless of whether the two STAs 115 are in the same coverage area 110. Examples of direct wireless links 120 may include Wi-Fi direct connections, Wi-Fi tunneling direct link setup (TDLS) links, and other group connections. The STA 115 and the AP 105 may communicate according to WLAN radio and baseband protocols for the physical layer and the medium access control (MAC) layer from the Institute of Electrical and Electronics Engineers (IEEE) 802.11 and versions including, but not limited to, 802.11b, 802.11g, 802.11a, 802.11n, 802.11ac, 802.11ad, 802.11ah, 802.11ax, etc. In other specific implementations, a peer-to-peer connection or an ad hoc network may be implemented within the wireless communication system 100.

[0057] In some cases, a STA 115 (or AP 105) may be detected by the central AP 105, but may not be detected by other STAs 115 in the coverage area 110 of the central AP 105. For example, one STA 115 may be at one end of the coverage area 110 of the central AP 105, while another STA 115 may be at the other end. Thus, the two STAs 115 may communicate with the AP 105, but may not receive each other's transmissions. This may cause transmission collisions of the two STAs 115 in a contention-based environment (e.g., carrier sense multiple access / collision avoidance (CSMA / CA)) because the STAs 115 may not refrain from transmitting over each other. STAs 115 whose transmissions cannot be identified but are within the same coverage area 110 may be referred to as hidden nodes. CSMA / CA can be supplemented by the exchange of ready-to-send (RTS) packets sent by the transmitting STA 115 (or AP 105) and clear-to-send (CTS) packets sent by the receiving STA 115 (or AP 105). This can alert other devices within the range of the transmitter and receiver not to transmit during the duration of the main transmission. Thus, RTS / CTS can help alleviate the hidden node problem.

[0058] According to the techniques described herein, STA 115 may monitor characteristics of signaling from AP 105 and adjust transmission parameters based on the monitoring. In some examples, STA 115 may monitor the RSSI of DL transmissions from AP 105 over direct wireless link 120. If the RSSI of signaling from AP 105 drops below a first threshold (e.g., -80 dBm), STA 115 may send feedback messages in a first portion of the bandwidth (e.g., feedback messages spanning 20 MHz in an 80 MHz or 160 MHz bandwidth) and refrain from sending duplicate feedback messages in the remainder of the bandwidth. If RSSI subsequently improves and rises above a second threshold (e.g., -76 dBm), STA 115 may return to sending duplicate feedback messages (e.g., non-high throughput ACK messages) spanning the bandwidth (e.g., multiple feedback messages each spanning 20 MHz in an 80 MHz or 160 MHz bandwidth).

[0059] Additionally or alternatively, STA 115 may monitor the decoding rate of packets received in the signaling. If the decoding rate drops below a first threshold (e.g., an index of an MCS, such as MCS4), STA 115 may send a single feedback message without duplication. If the decoding rate subsequently increases above a second threshold (e.g., the number of spatial streams, such as two spatial streams), STA 115 may return to sending duplicate feedback messages across the bandwidth. Additionally or alternatively, STA 115 may monitor signaling on two connected transmit chains. If the decoding rate drops below a rate threshold and the difference between the RSSIs of the two chains is above a difference threshold, STA 115 may increase the output power of the chain with the lower RSSI to give additional link budget for transmission to AP 105 on the direct wireless link 120.

[0060] In some cases, the STA may send a duplicate feedback message according to a first transmit power, and may send a single feedback message (e.g., a feedback message without duplication) according to a second transmit power. The STA may determine whether to utilize duplication in the feedback message based on a comparison of the first transmit power and the second transmit power. For example, the STA may determine a difference between the first transmit power and the second transmit power. The STA may compare the difference with a feedback message transmit power threshold. If the difference is greater than the feedback message transmit power threshold, the STA may utilize duplicate feedback messages (e.g., may continue to transmit, or may return to transmitting duplicate feedback messages). If the difference is less than the feedback message transmit power threshold, the STA may disable duplication of feedback messages, and may instead transmit feedback messages in the first portion of the bandwidth.

[0061] Figure 2An example of a wireless communication system 200 that supports techniques for signal strength monitoring according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 may be a WLAN (also referred to as a Wi-Fi network) configured according to various aspects of the present disclosure. The wireless communication system 200 may implement the Figure 1 Aspects of the wireless communication system 100 described above may be implemented or may be implemented by the wireless communication system 100. For example, the wireless communication system 200 may include the AP 105-a and the STA 115-a, which may be reference Figure 1 Examples of corresponding devices described herein. The wireless communication system 200 can support improvements to communication throughput and reliability, among other benefits.

[0062] The AP 105-a may transmit to the STA 115-a on the DL 205, and the STA 115-a may transmit to the AP 105-a on the UL 210. In some examples, the STA 115-a may transmit in the bandwidth 230, where each portion 225 of the bandwidth 230 may be associated with a corresponding channel of the UL 210. For example, the portion 225-a may be associated with a primary channel of the UL 210.

[0063] In some cases, when the RSSI drops below a threshold (e.g., -80 dBm), the throughput on the DL 205 may be reduced (e.g., to 300 megabits per second (Mbps)). The reduction in throughput may be based on a reduction in the decoding rate of packets received on the DL 205. For example, the STA 115-a may receive packets associated with a reduced MCS (e.g., MCS1 or MCS2, which may be less than MCS4) or on a reduced number of spatial streams (e.g., one spatial stream instead of two spatial streams). In some cases, the reduction in throughput may be based on reduced reception at the AP 105-a. For example, the AP 105-a may receive a portion of the feedback message 220 (e.g., a portion less than 20 MHz in the 80 MHz or 160 MHz bandwidth 230), and the RSSI of the signaling received at the AP 105-a may be less than expected (e.g., 9 dB lower). The reduced RSSI may be less than the sensitivity point of the feedback frame rate (eg, 24 Mbps), and the AP 105 - a may respond by reducing throughput on the DL 205 .

[0064] According to the techniques described herein, STA 115-a may monitor characteristics of signaling from AP 105-a and adjust transmission parameters based on the monitoring. In some examples, STA 115-a may monitor the RSSI of signal 215-a on DL 205. If the RSSI of signal 215-a is below a first threshold (e.g., -80 dBm), STA 115-a may send feedback message 220-a (e.g., an acknowledgement (ACK) message) in portion 225-a of bandwidth 230 (e.g., a primary channel of UL 210) and refrain from sending a copy of feedback message 220-a in the remaining portion 225 of bandwidth 230 (e.g., portions 225-b, 225-c, 225-d, or any combination thereof). For example, feedback message 220-a may span 20 MHz of an 80 MHz bandwidth 230.

[0065] In some examples, STA 115-a may then monitor signal 215-b on DL 205. If the RSSI of signal 215-b is above a second threshold (e.g., -76 dBm), STA 115-a may send a copy of feedback message 220-b (e.g., an ACK message, such as a non-high throughput ACK message) in portion 225 across bandwidth 230. For example, each copy of feedback message 220-b may be sent in a respective portion 225 spanning 20 MHz of 80 MHz bandwidth 230.

[0066] Additionally or alternatively, STA 115-a may monitor a decoding rate of packets received in signal 215-a. If the decoding rate is below a first threshold (e.g., an index of an MCS, such as MCS4), STA 115-a may send feedback message 220-a without duplication in portion 225-a. If the decoding rate of subsequent signal 215-b is above a second threshold (e.g., a number of spatial streams, such as two spatial streams), STA 115-a may send a duplication of feedback message 220-b in portion 225 across bandwidth 230.

[0067] In some cases, STA 115-a may dynamically enable or disable replication (e.g., frequency-based replication) of a feedback message (e.g., feedback message 220) related to a signal (e.g., signal 215). The first feedback message type may refer to a feedback message type that uses frequency-based replication to send a feedback message (such as feedback message 220-b). The second feedback message type may refer to a feedback message type that does not use replication to send a feedback message (such as feedback message 220-a). STA 115-a may send a feedback message of the first feedback message type (e.g., a non-high throughput ACK message) according to a first transmit power P. non-HT, and a feedback message of a second feedback message type (eg, a feedback message spanning a 20 MHz portion of the bandwidth 230) may be sent according to a second transmit power P 20_MHz .

[0068] STA 115-a may determine whether to utilize (e.g., enable or disable) replication in the feedback message based on a comparison of the first transmit power and the second transmit power. For example, STA 115-a may monitor signal 215 on DL 205. To send feedback of signal 215, STA 115-a may increase the first transmit power P associated with the first feedback message type. non-HT The second transmission power P associated with the second feedback message type 20_MHz STA 115-a may determine the difference between the first transmit power and the second transmit power, for example, may determine P non-HT -P 20_MHz The value of .

[0069] STA 115-a may compare the difference with a threshold value P associated with a threshold value. T The comparison is made, and the threshold may include a feedback message transmission power threshold or an example of a feedback message transmission power threshold. The STA 115-a may select a feedback message type for transmission of the feedback message 220 based on the comparison. For example, the STA 115-a may select a non-high throughput ACK message (e.g., feedback message 220-b) or a 20 MHz ACK message (e.g., feedback message 220-a) as the feedback message 220 based on whether the difference satisfies the threshold.

[0070] For example, if the threshold is not met (e.g., if STA 115-a may then send a feedback message 220 (such as feedback message 220-b) according to the first feedback message type. More specifically, STA 115-a may enable frequency-based replication of feedback message 220 based on the difference being less than a threshold. STA 115-a may send a replication (e.g., example) of feedback message 220-b in a portion 225 spanning bandwidth 230. For example, each replication of feedback message 220-b may be sent in a corresponding portion 225 spanning 20 MHz in 80 MHz bandwidth 230. Each replication of the feedback message may include feedback of signal 215-a.

[0071] Alternatively, if a threshold is met (e.g., if STA 115-a may then send feedback message 220 (such as feedback message 220-a) according to the second feedback message type. STA 115-a may disable frequency-based duplication of feedback message 220 based on the difference being greater than a threshold. Thus, STA 115-a may send feedback message 220-a in portion 225-a of bandwidth 230, and may refrain from concurrently sending duplication of feedback message 220-a in remaining portions 225 (e.g., portions 225-b, 225-c, 225-d, or any combination thereof) of bandwidth 230. Feedback message 220-a may span 20 MHz of the 80 MHz bandwidth 230.

[0072] Figure 3 An example of a wireless communication system 300 that supports techniques for signal strength monitoring according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 300 may be a WLAN (also referred to as a Wi-Fi network) configured according to various aspects of the present disclosure. The wireless communication system 300 may implement the Figure 1 Aspects of the wireless communication system 100 described above may be implemented or may be implemented by the wireless communication system 100. For example, the wireless communication system 300 may include the AP 105-b and the STA 115-b, which may be reference Figure 1 Examples of corresponding devices described herein. The wireless communication system 300 can support improvements in communication throughput and reliability, among other benefits.

[0073] The AP 105-b and the STA 115-b may communicate over transmit chains 305-a and 305-b. Each transmit chain 305 may be associated with a respective antenna at the STA 115-b. In some cases, the throughput on the UL of the transmit chain 305 may be reduced (e.g., below 100 Mbps) based on the orientation of the antenna at the STA 115-b relative to the AP 105-b. For example, based on the transmit mode of the antenna (e.g., radiating mode or conducted mode), the antenna may not be able to maintain the coding rate or number of spatial streams associated with the UL, and the transmission may drop to using a lower coding rate (e.g., MCS) or fewer spatial streams, which may result in a reduction in throughput.

[0074] According to the techniques described herein, STA 115-b may monitor signals 315-a and 315-b on transmit chains 305-a and 305-b, respectively. In some examples, signals 315-a and 315-b may be instances of the same signal 315 (e.g., instances of a DL message), or signals 315-a and 315-b may be different signals 315. If the decoding rate of signal 315-a, signal 315-b, or both is less than a rate threshold (e.g., MCS2 with two spatial streams), and the difference between the RSSIs of the signals 315 is greater than a difference threshold (e.g., 5 dB), STA 115 may increase the output power (e.g., transmit power) of the transmit chain 305 with the lower RSSI to give additional link budget for transmission to AP 105-b. For example, if the RSSI of signal 315 - a on transmit chain 305 - a is 5 dB less than the RSI of signal 315 - b on transmit chain 305 - b , STA 115 - b may increase the output power of transmit chain 305 - a by 2–3 dB to improve UL throughput.

[0075] Figure 4 An example of a process flow 400 that supports techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is illustrated. In some examples, the process flow 400 may implement or be implemented by one or more aspects of the wireless communication systems 100, 200, and 300. For example, the process flow 400 may include example operations associated with one or more of the AP 105-c or the STA 115-c, which may be a reference Figures 1 to 3 Examples of corresponding devices described herein. In the following description of process flow 400, operations between AP 105-c and STA 115-c may be performed in an order different from the example order shown, or operations performed by AP 105-c and STA 115-c may be performed in a different order or at a different time. Some operations may also be omitted from process flow 400, and other operations may be added to process flow 400. Operations performed by AP 105-c and STA 115-c may support improvements to feedback operations and, in some examples, may promote improvements to communication reliability and other benefits.

[0076] At 405, the STA 115-c may monitor, for example, on a DL channel, for a signal from the AP 105-c. At 410, the STA 115-c may receive the signal.

[0077] At 415, STA 115-c may compare a characteristic of the signal to a threshold. For example, the characteristic may be an RSSI associated with the signal, and the threshold may be an RSSI threshold (e.g., -80 dBm). Additionally or alternatively, the characteristic may be a coding rate associated with an MCS of a set of packets received in the signal, and the threshold may be a coding rate threshold (e.g., an index of the MCS, such as MCS4). In some examples, the coding rate may be based on the number of spatial streams associated with the signal.

[0078] At 420, the STA 115-c may send a feedback message (e.g., an ACK message) related to the signal to the AP 105-c. The STA 115-c may send an instance of the feedback message in a first portion of the bandwidth (e.g., a primary channel of the UL, which may span 20 MHz of the 80 MHz bandwidth or the 160 MHz bandwidth). In some examples, based on a characteristic of the signal satisfying a threshold (e.g., the characteristic being less than the threshold), the STA 115-c may refrain from concurrently sending a second instance of the feedback message in a second portion of the bandwidth. For example, the STA 115-c may refrain from sending a copy of the feedback message in the remaining portion of the bandwidth.

[0079] In some examples, at 420, the STA 115-c may transmit a feedback message according to a first feedback message type (e.g., frequency-based duplicate feedback, such as a non-high throughput ACK message type) or a second feedback message type (e.g., non-duplicate feedback) based on a first transmit power associated with the first feedback type and a second transmit power associated with the second feedback type. For example, based on monitoring the signal at 405, the STA 115-c may determine a difference between the first transmit power and the second transmit power. The STA 115-c may compare the difference with a threshold (e.g., a feedback message transmit power threshold) to determine whether the difference satisfies a threshold associated with the threshold. The STA 115-c may select a feedback message type for transmission of the feedback message based on the comparison.

[0080] If the difference satisfies the threshold, then at 420, the STA 115-c may send a feedback message in the first portion of the bandwidth according to the second feedback message type. Here, the STA 115-c may refrain from sending a copy of the feedback message in the remaining portion of the bandwidth. For example, if the difference is less than the threshold, the STA 115-c may refrain from concurrently sending a second instance of the feedback message in the second portion of the bandwidth.

[0081] If the difference fails to meet the threshold, then at 420, STA 115-c may send a feedback message according to the first feedback message type. For example, STA 115-a may send an instance of the feedback message in a first portion of the bandwidth and may send a second instance of the feedback message in a second portion of the bandwidth. The instance of the feedback message may include an ACK message or an example of an ACK message, and the second instance of the feedback message may include a copy of the ACK message or an example of a copy of the ACK message. The instance of the feedback message and the second instance of the feedback message may span the bandwidth.

[0082] In some examples, at 425, STA 115-c may monitor for a second signal from AP 105-c, and may receive the second signal at 430. In some examples, at 435, STA 115-c may compare the same characteristic of the second signal to a second threshold. For example, if the characteristic is an RSSI of the second signal, the second threshold may be a second RSSI threshold (e.g., -76 dBm). Additionally or alternatively, if the characteristic is a coding rate of the second signal, the second threshold may be a second coding rate threshold (e.g., the number of spatial streams, such as two spatial streams).

[0083] In some examples, at 440, the STA 115-c may send a second feedback message (e.g., an ACK message, such as a non-high throughput ACK message) related to the second signal. The second feedback message may be sent using frequency-based replication based on a characteristic of the second signal being greater than a second threshold. In some examples, the STA 115-c may send a replication of the second feedback message in a portion spanning a bandwidth. For example, each replication of the second feedback message may span 20 MHz of an 80 MHz bandwidth or a 160 MHz bandwidth. The operations performed by the STA 115-c and the AP 105-c may support improvements in communication throughput and reliability, as well as other benefits.

[0084] Figure 5 An example of a process flow 500 that supports techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is illustrated. In some examples, the process flow 500 may implement or be implemented by one or more aspects of the wireless communication systems 100, 200, and 300. For example, the process flow 500 may include example operations associated with one or more of the AP 105-d or the STA 115-d, which may be a reference Figures 1 to 3Examples of corresponding devices described herein. In the following description of process flow 500, operations between AP 105-d and STA 115-d may be performed in an order different from the example order shown, or operations performed by AP 105-d and STA 115-d may be performed in a different order or at a different time. Some operations may also be omitted from process flow 500, and other operations may be added to process flow 500. Operations performed by AP 105-d and STA 115-d may support improvements to feedback operations and, in some examples, may promote improvements to communication reliability and other benefits.

[0085] At 505, STA 115-d may monitor a first signal on a first transmit chain and a second signal on a second transmit chain, wherein STA 115-d and AP 105-d may communicate using the transmit chains. In some examples, each transmit chain may be associated with a corresponding antenna at STA 115-d. In some examples, the transmit chains may be connected.

[0086] At 510, STA 115-d may receive a first signal and a second signal from AP 105-d. In some examples, the first signal and the second signal may be instances of the same signal (eg, instances of a DL message), or the first signal and the second signal may be different signals.

[0087] At 515, STA 115-d may compare the decoding rate to a rate threshold. The decoding rate may be associated with the first signal, the second signal, or both. For example, the decoding rate may be associated with the MCS of the set of packets received in the first signal, the second signal, or both. In some examples, the rate threshold may be an index associated with the MCS, such as MCS2. Additionally or alternatively, the decoding rate may be associated with the number of spatial streams associated with the transmit chain, and the rate threshold may be the number of spatial streams (e.g., two spatial streams).

[0088] At 520, STA 115-d may determine a difference between a first RSSI of the first signal and a second RSSI of the second signal and compare the difference to a difference threshold (e.g., 5 dB). In some examples, STA 115-d may determine the difference based on monitoring the first signal and the second signal.

[0089] At 525, the STA 115-d may increase the transmit power of the transmit chain with the lower RSSI to give additional link budget for transmission to the AP 105-d. In some examples, the STA 115-d may increase the transmit power of the transmit chain with the lower RSSI by 2–3 dB to improve UL throughput. The STA 115-d may increase the transmit power based on the decoded rate being less than a rate threshold and the difference being greater than a difference threshold.

[0090] In some examples, at 530, STA 115-d may transmit a third signal to AP 105-d on the transmit chain with the lower RSSI according to the increased transmit power. Operations performed by STA 115-d and AP 105-d may support improvements to communication throughput and reliability, among other benefits.

[0091] Figure 6 A block diagram 600 of a device 605 supporting techniques for signal strength monitoring according to one or more aspects of the present disclosure is shown. The device 605 may be an example of aspects of a STA as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communication manager 620. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0092] Receiver 610 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to techniques for signal strength monitoring). The information may be communicated to other components of device 605. Receiver 610 may utilize a single antenna or a collection of multiple antennas.

[0093] Transmitter 615 may provide means for transmitting signals generated by other components of device 605. For example, transmitter 615 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to techniques for signal strength monitoring). In some examples, transmitter 615 may be co-located with receiver 610 in a transceiver module. Transmitter 615 may utilize a single antenna or a collection of multiple antennas.

[0094] The communication manager 620, the receiver 610, the transmitter 615, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the techniques for signal strength monitoring as described herein. For example, the communication manager 620, the receiver 610, the transmitter 615, or various combinations thereof or components thereof may support methods for performing one or more of the functions described herein.

[0095] In some examples, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a digital signal processor (DSP), a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof that is configured as or otherwise supports components for performing the functions described in this disclosure. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).

[0096] Additionally or alternatively, in some examples, the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 620, the receiver 610, the transmitter 615, or various combinations or components thereof may be performed by a general purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured or otherwise supported to perform the functions described in the present disclosure).

[0097] In some examples, communication manager 620 can be configured to perform various operations (e.g., receive, obtain, monitor, output, send) using or otherwise cooperating with receiver 610, transmitter 615, or both. For example, communication manager 620 can receive information from receiver 610, transmit information to transmitter 615, or be integrated in conjunction with receiver 610, transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.

[0098] The communication manager 620 may support wireless communications at a wireless station according to examples as disclosed herein. For example, the communication manager 620 may be configured to or otherwise support components for monitoring a signal from an access point. The communication manager 620 may be configured to or otherwise support components for comparing a characteristic of the signal to a threshold, the characteristic being determined based on the monitoring and being one of the following: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal. The communication manager 620 may be configured to or otherwise support components for sending a first instance of a feedback message related to the signal in a first portion of a bandwidth. The communication manager 620 may be configured to or otherwise support components for suppressing concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold.

[0099] Additionally or alternatively, the communication manager 620 may support wireless communications at a wireless station according to examples as disclosed herein. For example, the communication manager 620 may be configured to or otherwise support components for monitoring a first signal from an access point and a second signal from an access point using a first transmission chain of the wireless station and a second transmission chain of the wireless station, respectively. The communication manager 620 may be configured to or otherwise support components for comparing a decoding rate determined based on monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both. The communication manager 620 may be configured to or otherwise support components for comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined based on monitoring. The communication manager 620 may be configured to or otherwise support components for increasing a transmit power associated with the first transmission chain based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0100] Additionally or alternatively, the communication manager 520 may support wireless communications at a wireless station according to examples as disclosed herein. For example, the communication manager 520 is capable, configured, or operable to support components for monitoring a signal from an access point. The communication manager 520 is capable, configured, or operable to support components for comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with feedback messages about the signal. The communication manager 520 is capable, configured, or operable to support components for sending a first instance of a feedback message in a first portion of a bandwidth according to the first feedback type or the second feedback type based on the difference satisfying the threshold.

[0101] By including or configuring a communications manager 620 according to examples as described herein, a device 605 (e.g., a processor controlling or otherwise coupled to a receiver 610, a transmitter 615, a communications manager 620, or a combination thereof) may support techniques for reducing processing, reducing power consumption, and more efficiently utilizing communications resources.

[0102] Figure 7 A block diagram 700 of a device 705 supporting techniques for signal strength monitoring according to one or more aspects of the present disclosure is shown. The device 705 may be an example of aspects of the device 605 or STA 115 as described herein. The device 705 may include a receiver 710, a transmitter 715, and a communication manager 720. The device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0103] Receiver 710 may provide means for receiving information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to techniques for signal strength monitoring). The information may be communicated to other components of device 705. Receiver 710 may utilize a single antenna or a collection of multiple antennas.

[0104] The transmitter 715 may provide means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information (such as packets, user data, control information, or any combination thereof) associated with various information channels (e.g., control channels, data channels, information channels related to techniques for signal strength monitoring). In some examples, the transmitter 715 may be co-located with the receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna or a collection of multiple antennas.

[0105] The device 705 or its various components may be examples of components for performing various aspects of the techniques for signal strength monitoring as described herein. For example, the communication manager 720 may include a signaling manager 725, a feedback component 730, a transmit power component 735, or any combination thereof. The communication manager 720 may be an example of various aspects of the communication manager 620 as described herein. In some examples, the communication manager 720 or its various components may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the receiver 710, the transmitter 715, or both. For example, the communication manager 720 may receive information from the receiver 710, transmit information to the transmitter 715, or be integrated in combination with the receiver 710, the transmitter 715, or both to obtain information, output information, or perform various other operations as described herein.

[0106] The communication manager 720 may support wireless communications at a wireless station according to examples as disclosed herein. The signaling manager 725 may be configured to or otherwise support components for monitoring a signal from an access point. The signaling manager 725 may be configured to or otherwise support components for comparing a characteristic of the signal to a threshold, the characteristic being determined based on the monitoring and being one of the following: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal. The feedback component 730 may be configured to or otherwise support components for sending a first instance of a feedback message related to the signal in a first portion of the bandwidth. The feedback component 730 may be configured to or otherwise support components for suppressing concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold.

[0107] Additionally or alternatively, the communication manager 720 may support wireless communications at a wireless station according to examples as disclosed herein. The signaling manager 725 may be configured to or otherwise support components for monitoring a first signal from an access point and a second signal from an access point using a first transmission chain of the wireless station and a second transmission chain of the wireless station, respectively. The signaling manager 725 may be configured to or otherwise support components for comparing a decoding rate determined based on monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both. The signaling manager 725 may be configured to or otherwise support components for comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined based on monitoring. The transmit power component 735 may be configured to or otherwise support components for increasing a transmit power associated with the first transmit chain based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0108] Additionally or alternatively, the communication manager 620 may support wireless communications at a wireless station according to examples as disclosed herein. The signaling manager 625 is capable, configured, or operable to support components for monitoring a signal from an access point. The transmit power component 635 is capable, configured, or operable to support components for comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with a feedback message about the signal. The feedback component 630 is capable, configured, or operable to support components for transmitting a first instance of a feedback message in a first portion of a bandwidth according to the first feedback type or the second feedback type based on the difference satisfying the threshold.

[0109] Figure 8 A block diagram 800 of a communication manager 820 supporting techniques for signal strength monitoring in accordance with one or more aspects of the present disclosure is shown. The communication manager 820 can be an example of aspects of the communication manager 620, the communication manager 720, or both as described herein. The communication manager 820 or its various components can be examples of components for performing various aspects of the techniques for signal strength monitoring as described herein. For example, the communication manager 820 can include a signaling manager 825, a feedback component 830, a transmit power component 835, or any combination thereof. Each of these components can communicate directly or indirectly with each other (e.g., via one or more buses).

[0110] The communication manager 820 may support wireless communications at a wireless station according to examples as disclosed herein. The signaling manager 825 may be configured to or otherwise support components for monitoring signals from an access point. In some examples, the signaling manager 825 may be configured to or otherwise support components for comparing a characteristic of the signal to a threshold, the characteristic being determined based on monitoring and being one of the following: a received signal strength indicator associated with the signal or a decoding rate associated with a modulation and coding scheme of a set of packets received in the signal. The feedback component 830 may be configured to or otherwise support components for sending a first instance of a feedback message related to the signal in a first portion of a bandwidth. In some examples, the feedback component 830 may be configured to or otherwise support components for suppressing concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold.

[0111] In some examples, the signaling manager 825 can be configured or otherwise support components for monitoring a second signal from the access point after transmitting. In some examples, the signaling manager 825 can be configured or otherwise support components for comparing the same characteristic as identified from the signal based on the second signal and to a second threshold. In some examples, the feedback component 830 can be configured or otherwise support components for sending a second feedback message related to the second signal, wherein the second feedback message is sent using frequency-based replication based on the same characteristic being greater than the second threshold.

[0112] In some examples, the second feedback message spans a bandwidth.

[0113] In some examples, the second feedback message includes a non-high-throughput acknowledgment message.

[0114] In some examples, the threshold is a received signal strength indicator threshold and the characteristic is a received signal strength indicator associated with the signal.

[0115] In some examples, the threshold is a coding rate threshold and the characteristic is a coding rate associated with a modulation and coding scheme of a set of packets received in the signal.

[0116] In some examples, the coding rate is based on the number of spatial streams associated with the signal.

[0117] Additionally or alternatively, the communication manager 820 may support wireless communications at a wireless station according to examples as disclosed herein. In some examples, the signaling manager 825 may be configured to or otherwise support components for monitoring a first signal from an access point and a second signal from an access point using a first transmission chain of the wireless station and a second transmission chain of the wireless station, respectively. In some examples, the signaling manager 825 may be configured to or otherwise support components for comparing a decoding rate determined based on monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both. In some examples, the signaling manager 825 may be configured to or otherwise support components for comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined based on monitoring. The transmit power component 835 may be configured to or otherwise support components for increasing a transmit power associated with the first transmit chain based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0118] In some examples, transmit power component 835 can be configured or otherwise support components for transmitting a third signal to the access point using the first transmit chain of the wireless station in accordance with the increased transmit power.

[0119] In some examples, the coding rate is based on a number of spatial streams associated with the first signal, the second signal, or both.

[0120] In some examples, the first signal includes a first instance of a downlink message. In some examples, the second signal includes a second instance of a downlink message.

[0121] In some examples, the first signal and the second signal are the same signal.

[0122] In some examples, the first transmit chain and the second transmit chain are associated with a multiple-input multiple-output configuration at the wireless station.

[0123] In some examples, the coding rate comprises a combined coding rate associated with a modulation and coding scheme of a set of packets received in the first signal and the second signal.

[0124] In some examples, the coding rate is associated with a modulation and coding scheme of the set of packets received in the first signal.

[0125] Additionally or alternatively, the communication manager 720 may support wireless communications at a wireless station according to examples as disclosed herein. In some examples, the signaling manager 725 is capable, configured, or operable to support components for monitoring a signal from an access point. In some examples, the transmit power component 735 is capable, configured, or operable to support components for comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with feedback messages about the signal. In some examples, the feedback component 730 is capable, configured, or operable to support components for sending a first instance of a feedback message in a first portion of a bandwidth according to the first feedback type or the second feedback type based on the difference satisfying the threshold.

[0126] In some examples, feedback component 730 is capable of, configured to, or operable to support means for suppressing concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the difference being less than a threshold, wherein the first instance of the feedback message is sent according to a second feedback type.

[0127] In some examples, a first instance of the feedback message spans a first portion of the bandwidth.

[0128] In some examples, feedback component 730 is capable of, configured to, or operable to support components for sending a second instance of the feedback message, wherein the first instance of the feedback message and the second instance of the feedback message are sent according to a first feedback message type based on a difference being greater than a threshold.

[0129] In some examples, the first instance of the feedback message and the second instance of the feedback message are sent using frequency-based replication.

[0130] In some examples, the first instance of the feedback message includes an acknowledgment message of the signal. In some examples, the second instance of the feedback message includes a copy of the acknowledgment message.

[0131] In some examples, the first feedback message type comprises a non-high throughput acknowledgment message type.

[0132] In some examples, the first instance of the feedback message and the second instance of the feedback message span a bandwidth.

[0133] Fig. 9A diagram of a system 900 including a device 905 supporting techniques for signal strength monitoring according to one or more aspects of the present disclosure is shown. The device 905 may be an example of a device 605, a device 705, or a STA as described herein or include components of these devices. The device 905 may include components for two-way voice and data communications, including components for sending and receiving communications, such as a communication manager 920, an input / output (I / O) controller 910, a transceiver 915, an antenna 925, a memory 930, code 935, and a processor 940. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 945).

[0134] I / O controller 910 can manage input and output signals of device 905. I / O controller 910 can also manage peripheral devices that are not integrated into device 905. In some cases, I / O controller 910 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 910 can utilize a computer such as a , or other known operating systems. In some other cases, I / O controller 910 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 910 may be implemented as part of a processor such as processor 940. In some cases, a user may interact with device 905 via I / O controller 910 or via hardware components controlled by I / O controller 910.

[0135] In some cases, the device 905 may include a single antenna 925. However, in some other cases, the device 905 may have more than one antenna 925, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. As described herein, the transceiver 915 may communicate bidirectionally via one or more antennas 925, wired or wireless links. For example, the transceiver 915 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 915 may also include a modem to modulate packets and provide the modulated packets to one or more antennas 925 for transmission, and demodulate packets received from one or more antennas 925. The transceiver 915 or the transceiver 915 and one or more antennas 925 may be examples of transmitters 615, transmitters 715, receivers 610, receivers 710, or any combination thereof or components thereof as described herein.

[0136] The memory 930 may include random access memory (RAM) and read-only memory (ROM). The memory 930 may store computer-readable, computer-executable code 935 including instructions that, when executed by the processor 940, cause the device 905 to perform various functions described herein. In some cases, the memory 930 may contain, among other things, a basic I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0137] The processor 940 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 940 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 940. The processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 930) to cause the device 905 to perform various functions (e.g., functions or tasks that support techniques for signal strength monitoring). For example, the device 905 or a component of the device 905 may include a processor 940 and a memory 930 coupled to or coupled to the processor 940, the processor 940 and the memory 930 being configured to perform the various functions described herein.

[0138] The communication manager 920 may support wireless communications at a wireless station according to examples as disclosed herein. For example, the communication manager 920 may be configured to or otherwise support components for monitoring a signal from an access point. The communication manager 920 may be configured to or otherwise support components for comparing a characteristic of the signal to a threshold, the characteristic being determined based on the monitoring and being one of the following: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal. The communication manager 920 may be configured to or otherwise support components for sending a first instance of a feedback message related to the signal in a first portion of a bandwidth. The communication manager 920 may be configured to or otherwise support components for suppressing concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold.

[0139] Additionally or alternatively, the communication manager 920 may support wireless communications at a wireless station according to examples as disclosed herein. For example, the communication manager 920 may be configured to or otherwise support components for monitoring a first signal from an access point and a second signal from an access point using a first transmission chain of the wireless station and a second transmission chain of the wireless station, respectively. The communication manager 920 may be configured to or otherwise support components for comparing a decoding rate determined based on monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both. The communication manager 920 may be configured to or otherwise support components for comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined based on monitoring. The communication manager 920 may be configured to or otherwise support components for increasing a transmit power associated with the first transmission chain based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0140] Additionally or alternatively, the communication manager 820 may support wireless communications at a wireless station according to examples as disclosed herein. For example, the communication manager 820 is capable, configured, or operable to support components for monitoring a signal from an access point. The communication manager 820 is capable, configured, or operable to support components for comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with feedback messages about the signal. The communication manager 820 is capable, configured, or operable to support components for sending a first instance of a feedback message in a first portion of a bandwidth according to the first feedback type or the second feedback type based on the difference satisfying the threshold.

[0141] By including or configuring a communications manager 920 according to the examples described herein, the device 905 may support techniques for improving communications reliability, reducing latency, improving user experience associated with reduced processing, more efficiently utilizing communications resources, improving coordination between devices, and improving utilization of processing power, among other benefits.

[0142] Fig.10 1 is a flowchart illustrating a method 1000 for supporting techniques for signal strength monitoring according to one or more aspects of the present disclosure. The operations of the method 1000 may be implemented by a STA or its components as described herein. For example, the operations of the method 1000 may be implemented by a STA or its components as described in reference to Figures 1 to 9The STA described herein performs. In some examples, the STA may execute an instruction set to control the functional elements of the STA to perform the described functions. Additionally or alternatively, the STA may use dedicated hardware to perform various aspects of the described functions.

[0143] At 1005, the method may include monitoring a signal from an access point. The operations of 1005 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1005 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0144] At 1010, the method may include comparing a characteristic of the signal to a threshold value, the characteristic being determined based on monitoring and being one of: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal. The operations of 1010 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1010 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0145] At 1015, the method may include sending a first instance of a feedback message related to the signal in a first portion of the bandwidth. The operations of 1015 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1015 may be performed as described in reference to Figure 8 The feedback component 830 is used to perform.

[0146] At 1020, the method may include refraining from concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold. The operations of 1020 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1020 may be performed as described in reference to Figure 8 The feedback component 830 is used to perform.

[0147] Fig.11 1 is a flowchart illustrating a method 1100 for supporting techniques for signal strength monitoring according to one or more aspects of the present disclosure. The operations of the method 1100 may be implemented by a STA or its components as described herein. For example, the operations of the method 1100 may be implemented by a STA or its components as described in reference to Figures 1 to 9 The STA described herein performs. In some examples, the STA may execute an instruction set to control the functional elements of the STA to perform the described functions. Additionally or alternatively, the STA may use dedicated hardware to perform various aspects of the described functions.

[0148] At 1105, the method may include monitoring a signal from an access point. The operations of 1105 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1105 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0149] At 1110, the method may include comparing a characteristic of the signal to a threshold value, the characteristic being determined based on monitoring and being one of: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal. The operations of 1110 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1110 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0150] At 1115, the method may include sending a first instance of a feedback message related to the signal in a first portion of the bandwidth. The operations of 1115 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1115 may be performed as described in reference to Figure 8 The feedback component 830 is used to perform.

[0151] At 1120, the method may include refraining from concurrently sending a second instance of the feedback message in a second portion of the bandwidth based on the characteristic being less than the threshold. The operations of 1120 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1120 may be performed as described in reference to Figure 8 The feedback component 830 is used to perform.

[0152] At 1125, the method may include, after sending, monitoring a second signal from the access point. The operations of 1125 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1125 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0153] At 1130, the method may include determining the same characteristic as identified from the signal based on the second signal and comparing it to a second threshold. The operations of 1130 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1130 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0154] At 1135, the method may include sending a second feedback message related to the second signal, wherein the second feedback message is sent using frequency-based replication based on the same characteristic being greater than a second threshold. The operations of 1135 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1135 may be performed as described in reference to Figure 8 The feedback component 830 is used to perform.

[0155] Fig.121 is a flowchart illustrating a method 1200 for supporting techniques for signal strength monitoring according to one or more aspects of the present disclosure. The operations of the method 1200 may be implemented by a STA or a component thereof as described herein. For example, the operations of the method 1200 may be implemented by a STA or a component thereof as described in reference to Figures 1 to 9 The STA described herein performs. In some examples, the STA may execute an instruction set to control the functional elements of the STA to perform the described functions. Additionally or alternatively, the STA may use dedicated hardware to perform various aspects of the described functions.

[0156] At 1205, the method may include monitoring a first signal from an access point and a second signal from an access point using a first transmission chain of the wireless station and a second transmission chain of the wireless station, respectively. The operations of 1205 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1205 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0157] At 1210, the method may include comparing a decoding rate determined based on monitoring to a rate threshold, the decoding rate associated with the first signal, the second signal, or both. The operations of 1210 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1210 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0158] At 1215, the method may include comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal to a difference threshold, the difference determined based on the monitoring. The operations of 1215 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1215 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0159] At 1220, the method may include increasing the transmit power associated with the first transmit chain based on the decoding rate being less than a rate threshold and based on the difference being greater than a difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal. The operations of 1220 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1220 may be performed as described in reference to Figure 8 The sending power component 835 is used to perform the operation.

[0160] Fig.13 1 is a flowchart illustrating a method 1300 for supporting techniques for signal strength monitoring according to aspects of the present disclosure. The operations of the method 1300 may be implemented by a STA or a component thereof as described herein. For example, the operations of the method 1300 may be implemented by a STA or a component thereof as described in reference to Figures 1 to 9In some examples, the STA may execute an instruction set to control the functional elements of the wireless STA to perform the described functions. Additionally or alternatively, the wireless STA may use dedicated hardware to perform various aspects of the described functions.

[0161] At 1305, the method may include monitoring a signal from an access point. The operations of 1305 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed as described in reference to Figure 8 The signaling manager 825 is used to execute.

[0162] At 1310, the method may include comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with a feedback message about a signal. The operations of 1310 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed as described in reference to Figure 8 The sending power component 835 is used to perform the operation.

[0163] At 1315, the method may include sending a first instance of a feedback message in a first portion of the bandwidth according to a first feedback type or a second feedback type based on the difference satisfying a threshold. The operations of 1315 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed as described in reference to Figure 8 The feedback component 830 is used to perform.

[0164] The following provides an overview of various aspects of the disclosure:

[0165] Aspect 1: A method for wireless communication at a wireless station, comprising: monitoring a signal from an access point; comparing a characteristic of the signal to a threshold, the characteristic being determined at least in part based on the monitoring and being one of: a received signal strength indicator associated with the signal or a decoding rate associated with a modulation and coding scheme of a set of packets received in the signal; and sending a first instance of a feedback message related to the signal in a first portion of a bandwidth; and suppressing concurrently sending a second instance of the feedback message in a second portion of the bandwidth based at least in part on the characteristic being less than the threshold.

[0166] Aspect 2: The method according to Aspect 1 also includes: after the sending, monitoring a second signal from the access point; based on the second signal and comparing with a second threshold, the same characteristic as identified from the first signal; and sending a second feedback message related to the second signal, wherein the second feedback message is sent using frequency-based replication at least in part based on the same characteristic being greater than the second threshold.

[0167] Aspect 3: The method according to aspect 2, wherein the second feedback message spans the bandwidth.

[0168] Aspect 4: The method according to any one of aspects 2 to 3, wherein the second feedback message comprises a non-high throughput confirmation message.

[0169] Aspect 5: The method according to any one of aspects 1 to 4, wherein the threshold is a received signal strength indicator threshold, and the characteristic is the received signal strength indicator associated with the signal.

[0170] Aspect 6: A method according to any one of aspects 1 to 5, wherein the threshold is a decoding rate threshold, and the characteristic is the decoding rate associated with the modulation and coding scheme of the set of packets received in the signal.

[0171] Aspect 7: The method of aspect 6, wherein the coding rate is based at least in part on a number of spatial streams associated with the signal.

[0172] Aspect 8: A method for performing wireless communications at a wireless station, comprising: using a first transmission chain of the wireless station and a second transmission chain of the wireless station to monitor a first signal from an access point and a second signal from the access point, respectively; comparing a decoding rate determined at least in part based on the monitoring with a rate threshold, the decoding rate being associated with the first signal, the second signal, or both; comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal with a difference threshold, the difference being determined at least in part based on the monitoring; and increasing a transmission power associated with the first transmission chain at least in part based on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

[0173] Aspect 9: The method according to aspect 8 further includes: sending a third signal to the access point using the first transmission chain of the wireless station according to the increased transmission power.

[0174] Aspect 10: The method according to any one of aspects 8 to 9, wherein the decoding rate is based at least in part on the number of spatial streams associated with the first signal, the second signal, or both.

[0175] Aspect 11: A method according to any one of aspects 8 to 10, wherein the first signal comprises a first instance of a downlink message; and the second signal comprises a second instance of the downlink message.

[0176] Aspect 12: The method according to any one of aspects 8 to 11, wherein the first signal and the second signal are the same signal.

[0177] Aspect 13: The method according to any one of aspects 8 to 12, wherein the first transmit chain and the second transmit chain are associated with a multiple-input multiple-output configuration at the wireless station.

[0178] Aspect 14: The method according to any one of aspects 8 to 13, wherein the coding rate comprises a combined coding rate associated with a modulation and coding scheme of a set of packets received in the first signal and the second signal.

[0179] Aspect 15: The method according to any one of aspects 8 to 14, wherein the coding rate is associated with a modulation and coding scheme of a set of packets received in the first signal.

[0180] Aspect 16: A method for performing wireless communications at a wireless station, comprising: monitoring a signal from an access point; comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, wherein the first feedback message type and the second feedback message type are associated with feedback messages about the signal; and sending a first instance of the feedback message in a first part of a bandwidth according to the first feedback type or the second feedback type based at least in part on the difference satisfying the threshold.

[0181] Aspect 17: The method according to Aspect 16 also includes: suppressing the concurrent sending of a second instance of the feedback message in a second part of the bandwidth at least in part based on the difference being less than the threshold, wherein the first instance of the feedback message is sent according to the second feedback type.

[0182] Aspect 18: The method according to Aspect 17, wherein the first instance of the feedback message spans the first portion of the bandwidth.

[0183] Aspect 19: The method according to Aspect 16 further includes: sending a second instance of the feedback message, wherein the first instance of the feedback message and the second instance of the feedback message are sent according to the first feedback message type at least in part based on the difference being greater than the threshold.

[0184] Aspect 20: The method according to aspect 19, wherein the first instance of the feedback message and the second instance of the feedback message are sent using frequency-based replication.

[0185] Aspect 21: The method according to aspect 20, wherein the first instance of the feedback message comprises an acknowledgment message of the signal; and the second instance of the feedback message comprises a copy of the acknowledgment message.

[0186] Aspect 22: The method according to any one of aspects 19 to 21, wherein the first feedback message type comprises a non-high throughput confirmation message type.

[0187] Aspect 23: The method according to any one of aspects 19 to 22, wherein the first instance of the feedback message and the second instance of the feedback message span the bandwidth.

[0188] Aspect 24: An apparatus for performing wireless communications at a wireless station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 1 to 7.

[0189] Aspect 25: An apparatus for wireless communication at a wireless station, comprising at least one component for performing the method according to any one of aspects 1 to 7.

[0190] Aspect 26: A non-transitory computer-readable medium storing code for wireless communication at a wireless station, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 7.

[0191] Aspect 27: An apparatus for performing wireless communications at a wireless station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 8 to 15.

[0192] Aspect 28: An apparatus for wireless communication at a wireless station, comprising at least one component for performing a method according to any one of aspects 8 to 15.

[0193] Aspect 29: A non-transitory computer-readable medium storing code for wireless communication at a wireless station, the code comprising instructions executable by a processor to perform the method according to any one of aspects 8 to 15.

[0194] Aspect 30: An apparatus for performing wireless communications at a wireless station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 16 to 23.

[0195] Aspect 31: An apparatus for wireless communication at a wireless station, comprising at least one component for performing a method according to any one of aspects 16 to 23.

[0196] Aspect 32: A non-transitory computer-readable medium storing code for wireless communication at a wireless station, the code comprising instructions executable by a processor to perform the method according to any one of aspects 16 to 23.

[0197] It should be noted that the methods described herein describe possible specific implementations, and each operation and step may be rearranged or otherwise modified and other specific implementations are also possible. In addition, aspects from two or more methods may be combined.

[0198] The technology described herein can be used for various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. The terms "system" and "network" are often used interchangeably. Code division multiple access (CDMA) systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA20001xEV-DO, High Speed ​​Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. Time division multiple access (TDMA) systems can implement radio technologies such as Global System for Mobile Communications (GSM). An Orthogonal Frequency Division Multiple Access (OFDMA) system may implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and others.

[0199] One or more wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, each station may have similar frame timing, and transmissions from different stations may be approximately aligned in time. For asynchronous operation, each station may have different frame timing, and transmissions from different stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0200] Downlink transmissions described herein may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions. Each communication link described herein - including, for example, Figure 1 and 2 The wireless communication systems 100 and 200 may include one or more carriers, where each carrier may be a signal composed of multiple subcarriers (eg, waveform signals of different frequencies).

[0201] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "exemplary" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than other examples". Specific embodiments include specific details to provide an understanding of the described technology. However, these technologies can be practiced without these specific details. In some cases, in order to avoid obscuring the concepts of the described examples, well-known structures and devices are shown in block diagram form.

[0202] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label to distinguish between the similar components. If only the first reference label is used in the specification, the description applies to any of the similar components having the same first reference label, regardless of the second reference label.

[0203] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the specification may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0204] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, DSP, ASIC, 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, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., 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).

[0205] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium, or sent via a computer-readable medium. Other examples and specific implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these items. The features of the implementation functions may also be physically located at different locations, including being distributed so that the various parts of the functions are implemented at different physical locations. In addition, as used herein (including in the claims), the "or" used in the enumeration of items (e.g., enumeration of items with phrases such as "at least one of" or "one or more of") indicates an inclusive enumeration, so that, for example, the enumeration of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, without departing from the scope of the present disclosure, an exemplary step described as "based on condition A" may be based on both condition A and condition B. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0206] Computer-readable media include both non-transient computer storage media and communication media, including any media that facilitates a computer program to be transferred from one place to another.Non-transient storage media can be any available media that can be accessed by a general or special-purpose computer.By way of example and not limitation, non-transient computer-readable media may include RAM, ROM, electrically erasable programmable read-only memory (EEPROM), compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage devices, or any other non-transient media that can be used to carry or store the desired program code means in the form of instructions or data structures and can be accessed by a general or special-purpose computer or a general or special-purpose processor.Moreover, any connection is appropriately referred to as computer-readable media.For example, if software is sent from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio and microwaves, then the coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio and microwaves are included in the definition of medium. Disk and disc, as used herein, includes CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0207] The description herein is provided to enable one of ordinary skill in the art to implement or use the disclosure. Various modifications to the disclosure will be apparent to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the disclosure. Therefore, the disclosure is not limited to the examples and designs described herein, but conforms to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a wireless station, comprising: Monitors signals from access points; comparing a characteristic of the signal to a threshold, the characteristic being determined based at least in part on the monitoring and being one of: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal; sending a first instance of a feedback message related to the signal in a first portion of the bandwidth; as well as Based at least in part on the characteristic being less than the threshold, refraining from concurrently sending a second instance of the feedback message in a second portion of the bandwidth.

2. The method according to claim 1, further comprising: After said transmitting, monitoring for a second signal from said access point; the same characteristic as identified from said signal based on said second signal and compared to a second threshold; as well as A second feedback message related to the second signal is sent using frequency-based replication based at least in part on the same characteristic being greater than the second threshold. The method of claim 2 , wherein the second feedback message spans the bandwidth. The method of claim 2 , wherein the second feedback message comprises a non-high throughput acknowledgement message.

5. The method of claim 1, wherein the threshold is a received signal strength indicator threshold and the characteristic is the received signal strength indicator associated with the signal.

6. The method of claim 1, wherein the threshold is a coding rate threshold and the characteristic is the coding rate associated with the modulation and coding scheme of the set of packets received in the signal.

7. The method of claim 6, wherein the coding rate is based at least in part on a number of spatial streams associated with the signal.

8. A method for wireless communication at a wireless station, comprising: monitoring a first signal from an access point and a second signal from the access point using a first transmission chain of the wireless station and a second transmission chain of the wireless station, respectively; comparing a decoding rate determined based at least in part on the monitoring to a rate threshold, the decoding rate associated with the first signal, the second signal, or both; comparing a difference between a first received signal strength of the first signal and a second received signal strength of the second signal to a difference threshold, the difference determined based at least in part on the monitoring; as well as The transmit power associated with the first transmit chain is increased based at least in part on the decoding rate being less than the rate threshold and based on the difference being greater than the difference threshold, the first received signal strength of the first signal being less than the second received signal strength of the second signal.

9. The method according to claim 8, further comprising: A third signal is transmitted to the access point using the first transmission chain of the wireless station according to the increased transmission power.

10. The method of claim 8, wherein the coding rate is based at least in part on a number of spatial streams associated with the first signal, the second signal, or both.

11. The method according to claim 8, wherein: The first signal comprises a first instance of a downlink message; and The second signal includes a second instance of the downlink message. The method of claim 8 , wherein the first signal and the second signal are the same signal.

13. The method of claim 8, wherein the first transmit chain and the second transmit chain are associated with a multiple-input multiple-output configuration at the wireless station.

14. The method of claim 8, wherein the coding rate comprises a combined coding rate associated with a modulation and coding scheme of a set of packets received in the first signal and the second signal.

15. The method of claim 8, wherein the coding rate is associated with a modulation and coding scheme of a set of packets received in the first signal.

16. A method for wireless communication at a wireless station, comprising: Monitors signals from access points; comparing a difference between a first transmit power of a first feedback message type and a second transmit power of a second feedback message type to a threshold, the first feedback message type and the second feedback message type being associated with feedback messages regarding the signal; as well as A first instance of the feedback message is sent in a first portion of a bandwidth according to the first feedback type or the second feedback type based at least in part on the difference satisfying the threshold.

17. The method according to claim 16, further comprising: Based at least in part on the difference being less than the threshold, refraining from concurrently sending a second instance of the feedback message in a second portion of the bandwidth, wherein the first instance of the feedback message was sent according to the second feedback type.

18. The method of claim 17, wherein the first instance of the feedback message spans the first portion of the bandwidth.

19. The method according to claim 16, further comprising: A second instance of the feedback message is sent, wherein the first instance of the feedback message and the second instance of the feedback message are sent according to the first feedback message type based at least in part on the difference being greater than the threshold.

20. The method of claim 19, wherein the first instance of the feedback message and the second instance of the feedback message are sent using frequency-based replication.

21. The method of claim 20, wherein: said first instance of said feedback message comprises an acknowledgement message of said signal; and The second instance of the feedback message includes a copy of the confirmation message.

22. The method of claim 19, wherein the first feedback message type comprises a non-high throughput acknowledgement message type.

23. The method of claim 19, wherein the first instance of the feedback message and the second instance of the feedback message span the bandwidth.

24. An apparatus for wireless communication at a wireless station, comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: Monitors signals from access points; comparing a characteristic of the signal to a threshold, the characteristic being determined based at least in part on the monitoring and being one of: a received signal strength indicator associated with the signal or a coding rate associated with a modulation and coding scheme of a set of packets received in the signal; sending a first instance of a feedback message related to the signal in a first portion of the bandwidth; as well as Based at least in part on the characteristic being less than the threshold, refraining from concurrently sending a second instance of the feedback message in a second portion of the bandwidth.

25. The apparatus of claim 24, wherein the instructions are further executable by the processor to cause the apparatus to: After said transmitting, monitoring for a second signal from said access point; based on the second signal and compared to a second threshold value as the same characteristic as identified from the signal; and A second feedback message related to the second signal is sent using frequency-based replication based at least in part on the same characteristic being greater than the second threshold.

26. The apparatus of claim 25, wherein the second feedback message spans the bandwidth.

27. The apparatus of claim 25, wherein the second feedback message comprises a non-high throughput acknowledgement message.

28. The apparatus of claim 24, wherein the threshold is a received signal strength indicator threshold and the characteristic is the received signal strength indicator associated with the signal.

29. The apparatus of claim 24, wherein the threshold is a coding rate threshold and the characteristic is the coding rate associated with the modulation and coding scheme of the set of packets received in the signal.

30. The apparatus of claim 29, wherein the coding rate is based at least in part on a number of spatial streams associated with the signal.

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