Method and system for maintaining wireless links in a communication network
AssigneeClearwire IP Holdings LLC
InventorsChunmei Liu, Masoud Olfat, Nagi Mansour
Life of this patent
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Abstract
A method of operating a communication system comprises sending a frame by an access node to a wireless device where the frame comprises a packet. A counter is initialized and a timer for each frame is initiated. The method continues with the access node determining if a response associated with the packet is received before the expiration of the timer. If the response is received prior to the expiration of the timer, the counter and the timer are reset. If a response is not received prior to the expiration of the timer, the counter is incremented. Upon the counter meeting a criteria of a certain quantity of lost packets, the access node performs a synchronization process.
Claims14
A method of operating a communication system, comprising:
- initiating a communication transmission from an access node to a wireless device;
- sending a frame by the access node to the wireless device, wherein the frame comprises at least two packets and wherein each of the at least two packets require a response from the wireless device;
- initializing a counter at the access node when the frame is sent to the wireless device;
- initiating a timer for each packet of the at least two packets at the access node when the frame is sent to the wireless device;
- incrementing the counter when at least one timer expires before receiving the response associated with the at least two packets from the wireless device and resetting the timer and the counter when a response associated with a prior frame is received prior to the expiration of the at least one timer;
- performing a synchronization process between the access node and the wireless device when the counter meets a criteria, wherein the criteria is indicative of a maximum number of packets lost allotted between the access node and the wireless device and is negotiated between the access node and the wireless device;
- and
- stopping the communication transmission from the access node when the counter meets the criteria.
A method of operating a communication system, comprising:
- initiating a communication transmission from an access node to a wireless device;
- sending a frame by the access node to the wireless device, wherein the frame comprises at least two packets and wherein the at least two packets require a response from the wireless device;
- initializing a counter at the access node when the frame is sent to the wireless device;
- initiating a timer for each packet of the frame at the access node that requires a response from the wireless device when the frame is sent to the wireless device;
- incrementing the counter when at least one timer expires before receiving the response from the wireless device;
- performing a synchronization process between the access node and the wireless device when the counter meets a criteria, wherein the criteria is indicative of a maximum number of packets lost allotted between the access node and the wireless device and is negotiated between the access node and the wireless device;
- and
- stopping the communication transmission from the access node when the counter meets the criteria.
Dependencies are inferred from the claim text.