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US 9,854,533 B2Granted
System and method for improving channel efficiency in a wireless link
AssigneeQUALCOMM Incorporated
InventorsJames Simon Cho, Shiwei Zhao
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AssigneeQUALCOMM Incorporated
InventorsJames Simon Cho, Shiwei Zhao
Estimating the term…
System and method for improving channel efficiency in a wireless link between an access-point transceiver and a first transceiver. The first transceiver may have a first data throughput rate that is lower than the maximum possible data throughput rate of the wireless link. The first transceiver may include a first receive buffer. An indication of the first data throughput rate and a size of the first receive buffer may be received and stored by the access-point transceiver. A first size of a first data packet for transmission to the first transceiver may be determined by the access-point transceiver based on one or more of the first data throughput rate and/or the size of the first receive buffer. The first data packet of the first size may be transmitted to the first transceiver by the access-point transceiver at a data rate that is higher than the first data throughput rate.
A method for use by a first transceiver to improve channel efficiency in a wireless link with an access-point transceiver, wherein the first transceiver comprises a first receive buffer, the method comprising:
A transceiver configured to improve channel efficiency in a wireless link with an access-point transceiver, comprising:
A first transceiver configured to improve channel efficiency in a wireless link with an access-point transceiver, comprising:
A non-transitory processor-readable storage medium for operating a first transceiver configured to improve channel efficiency in a wireless link with an access-point transceiver and having a first receive buffer, the processor-readable storage medium having instructions thereon, the instructions comprising:
Dependencies are inferred from the claim text.
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Traffic management, e.g. flow control or congestion control: at the air interface
Transmission power control [TPC]: tPC being performed according to specific parameters
Details of the supervisory signal: the supervisory signal being transmitted together with control information
Arrangements specially adapted for the transmitter end: buffer management
About 5 years 10 months of term left · ends 4 Sep 2032 (estimated)
The present invention relates generally to wireless communication, and more particularly to a system and method for improving channel efficiency in a wireless link between wireless devices.
Wireless communication is being used for a plethora of applications, such as in laptops, cell phones, and other wireless communication devices (“wireless devices”). It has been common in the past for the maximum throughput rate of a wireless link to be the most limiting factor in the speed of wireless communication. However, with the improvement in wireless communication data rates and the increasingly widespread implementation of wireless communication capabilities (e.g., including in devices with relatively limited processing and/or interface capabilities), it is possible for a wireless device to be able to natively support a lower maximum possible data throughput rate than the maximum possible data throughput rate of the wireless link. This can potentially lead to problems
As one example, a mobile device in an 802.11 (WLAN) network might in some situations (e.g., depending on the processing capability and/or wireless adapter interface of the mobile device and the quality of the WLAN link) not be able to process packets at as high of a rate as it is possible for them to be transmitted over the WLAN link. In the absence of any mitigating factors, this can lead to packet loss, extensive retry attempts, and rate drops, which in turn can cause power waste and may degrade network capacity.
A better understanding of the present invention can be obtained when the following Detailed Description of the Embodiments is read in conjunction with the following drawings, in which:
FIG. 1 is a diagram illustrating potential packet loss due to limitations of a receiving device in a prior art system;
FIG. 2 illustrates exemplary wireless links between wireless devices, according to one embodiment;
While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.
The following is a glossary of terms used in the present application:
Memory Medium—Any of various types of memory devices or storage devices. The terms “memory” and “memory medium” are intended to include an installation medium, e.g., a CD-ROM, floppy disks, or tape device; a computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; or a non-volatile memory such as flash memory, hardware registers, a magnetic media (e.g., a hard drive), or optical storage. The memory medium may comprise other types of memory as well, or combinations thereof. The term “memory medium” may include two or more memory mediums.