Error protection of data unit service field in wireless local area network transmissions
AssigneeHuawei Technologies Co., Ltd.
InventorsYan Xin, Junghoon Suh, Osama Aboul-Magd, Sheng Sun, Kwok Shum Au
Life of this patent
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Abstract
Transmitting or receiving an RF signal that carries a data unit, the data unit comprising a DATA field that includes a SERVICE field, the SERVICE field including a scrambler initialization field and a sequence of remaining bits scrambled based on a set of scrambler sequence initialization bits included in the scrambler initialization field, the SERVICE field containing a first set of one or more error detection bits that has been computed to enable error detection for at least a first group of bits included in the scrambler initialization field.
Claims20
A method for transmitting data in a wireless local area network (WLAN), comprising:
- transmitting, in the WLAN, from a first wireless communication device, an RF signal that carries a data unit, the data unit comprising a DATA field that includes a SERVICE field, the SERVICE field including a scrambler initialization field and a sequence of remaining bits scrambled based on a set of scrambler sequence initialization bits included in the scrambler initialization field, the SERVICE field containing a first set of one or more error detection bits that has been computed based on a first group of bits included in the scrambler initialization field and a second group of bits in the sequence of remaining scrambled bits in the SERVICE field only, to enable error detection only for the first group of bits included in the scrambler initialization field and the second group of bits in the sequence of remaining scrambled bits in the SERVICE field.
A wireless communication device comprising a processing device and memory storing instructions that when executed by the processing device cause the wireless communication device to:
- transmit and/or receive, by a transceiver, an RF signal that carries a data unit, the data unit comprising a DATA field that includes a SERVICE field, the SERVICE field including a scrambler initialization field and a sequence of remaining bits scrambled based on a set of scrambler sequence initialization bits included in the scrambler initialization field, the SERVICE field containing a first set of one or more error detection bits that has been computed based on a first group of bits included in the scrambler initialization field and a second group of bits in the sequence of remaining scrambled bits in the SERVICE field only, to enable error detection only for the first group of bits included in the scrambler initialization field and the second group of bits in the sequence of remaining scrambled bits in the SERVICE field.
A method for receiving data in a wireless local area network (WLAN), comprising:
- receiving, at a wireless communication device, an RF signal that carries a data unit, the data unit comprising a DATA field that includes a SERVICE field, the SERVICE field including a scrambler initialization field and a sequence of remaining bits scrambled based on a set of scrambler sequence initialization bits included in the scrambler initialization field, the SERVICE field containing a first set of one or more error detection bits that has been computed based on a first group of bits included in the scrambler initialization field and a second group of bits in the sequence of remaining scrambled bits in the SERVICE field only, to enable error detection only for the first group of bits included in the scrambler initialization field and the second group of bits in the sequence of remaining scrambled bits in the SERVICE field.
Dependencies are inferred from the claim text.