Method, apparatus, and computer program product for wireless signaling
First Claim
1. A method, comprising:
- transmitting, by an access node, a broadcast request message to one or more wireless terminal devices associated with a wireless network managed by the access node;
transmitting a distortion threshold value in at least one of the broadcast request message and another message;
receiving, by the access node from a subset of the one or more wireless terminal devices, one or more parallel or sequential acknowledgement messages each indicating presence of a determined distortion greater than the distortion threshold value or indicating an inability to determine a distortion in channel estimates, wherein each determined distortion indicates a change between a prior channel estimate and a current channel estimate that is estimated from the broadcast request message received by a respective wireless terminal device in the subset; and
transmitting, by the access node, one or more polling request messages, only to the subset of the one or more wireless terminal devices, indicating requests to send the current channel estimate from each respective wireless terminal device in the subset to the access node.
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: storing, by a wireless device, a prior channel estimate that was previously transmitted to another wireless device in a wireless network; receiving, by the wireless device, a request message from the other device, to determine a distortion between a current channel estimate and the prior channel estimate and compare the determined distortion to a distortion threshold value, the request message being a broadcast request message or a measurement request message and the distortion value being either included in the request message, received in another message, or a preconfigured value; determining, by the wireless device, the distortion between the current channel estimate and the prior channel estimate and comparing the determined distortion to the distortion threshold value; and transmitting, by the wireless device, one or more parallel or sequential messages to the other device, indicating presence of the determined distortion greater than the distortion threshold value or indicating an inability to determine a distortion in channel estimates.
16 Citations
20 Claims
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1. A method, comprising:
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transmitting, by an access node, a broadcast request message to one or more wireless terminal devices associated with a wireless network managed by the access node; transmitting a distortion threshold value in at least one of the broadcast request message and another message; receiving, by the access node from a subset of the one or more wireless terminal devices, one or more parallel or sequential acknowledgement messages each indicating presence of a determined distortion greater than the distortion threshold value or indicating an inability to determine a distortion in channel estimates, wherein each determined distortion indicates a change between a prior channel estimate and a current channel estimate that is estimated from the broadcast request message received by a respective wireless terminal device in the subset; and transmitting, by the access node, one or more polling request messages, only to the subset of the one or more wireless terminal devices, indicating requests to send the current channel estimate from each respective wireless terminal device in the subset to the access node. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method, comprising:
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storing, by a first wireless device, a prior channel estimate that was previously transmitted to a second wireless device in a wireless network; receiving, by the first wireless device, a request message from the second wireless device, indicating a request to determine a distortion between a current channel estimate and the prior channel estimate and to compare the determined distortion to a distortion threshold value, the request message being a broadcast request message or a measurement request message and the distortion threshold value being either included in the request message, received by the first wireless device in another message, or a preconfigured value stored on the first wireless device; determining, by the first wireless device, the distortion between the current channel estimate and the prior channel estimate and comparing the determined distortion to the distortion threshold value; and transmitting, by the first wireless device to the second wireless device, one or more parallel or sequential messages indicating presence of the determined distortion greater than the distortion threshold value. - View Dependent Claims (8, 9, 10, 11)
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12. An apparatus, comprising:
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at least one processor; at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to; transmit a broadcast request message to one or more wireless terminal devices associated with a wireless network managed by the apparatus; transmit a distortion threshold value in at least one of the broadcast request message and another message; receive from a subset of the one or more wireless terminal devices, one or more parallel or sequential acknowledgement messages each indicating presence of a determined distortion greater than the distortion threshold value or indicating an inability to determine a distortion in channel estimates, wherein each determined distortion indicates a change between a prior channel estimate and a current channel estimate that is estimated from the broadcast request message received by a respective wireless terminal device in the subset; and transmit one or more polling request messages only to the subset of the one or more wireless terminal devices, indicating requests to send the current channel estimate from each wireless terminal device in the subset to the apparatus. - View Dependent Claims (13, 14, 15)
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16. An apparatus, comprising:
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at least one processor; at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to; store a prior channel estimate that was previously transmitted to a wireless device in a wireless network; receive a request message from the wireless device indicating a request to determine a distortion between a current channel estimate and the prior channel estimate and compare the determined distortion to a distortion threshold value, the request message being a broadcast request message or a measurement request message and the distortion threshold value being either included in the request message, received in another message, or a preconfigured value; determine the distortion between the current channel estimate and the prior channel estimate and compare the determined distortion to the distortion threshold value; and transmit one or more parallel or sequential messages to the wireless device indicating presence of the determined distortion greater than the distortion threshold value. - View Dependent Claims (17, 18)
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19. A computer program product comprising computer executable program code recorded on a computer readable non-transitory storage medium, the computer executable program code, when executed by a processor, causes an apparatus to:
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transmit a broadcast request message to one or more wireless terminal devices associated with a wireless network managed by the apparatus; transmit in another message, or include in the broadcast request message, a distortion threshold value; receive from a subset of the one or more wireless terminal devices, one or more parallel or sequential acknowledgement messages each indicating presence of a determined distortion greater than the distortion threshold value or indicating an inability to determine a distortion in channel estimates, wherein each determined distortion indicates a change between a prior channel estimate and a current channel estimate that is estimated from the broadcast request message received a respective wireless terminal device in the subset; and transmit one or more polling request messages only to the subset of the one or more wireless terminal devices to send the current channel estimate from each wireless terminal device in the subset to the apparatus.
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20. A computer program product comprising computer executable program code recorded on a computer readable non-transitory storage medium, the computer executable program code, when executed by a processor, causes an apparatus to:
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store a prior channel estimate that was previously transmitted to a wireless device in a wireless network; receive a request message from the wireless device indicating a request to determine a distortion between a current channel estimate and the prior channel estimate and compare the determined distortion to a distortion threshold value, the request message being a broadcast request message or a measurement request message and the distortion threshold value being either included in the request message, received in another message, or a preconfigured value; determine the distortion between the current channel estimate and the prior channel estimate and compare the determined distortion to the distortion threshold value; and transmit one or more parallel or sequential messages to the wireless device indicating presence of the determined distortion greater than the distortion threshold value.
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Specification