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US 12,757,068 B2Granted
Bandwidth determining method, device, storage medium, and program product
AssigneeHuawei Technologies Co., Ltd.
InventorsYunbo Li, Jian Yu, Ming Gan
Life of this patent
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Abstract
An example bandwidth determining method, including: a first device receives a physical layer protocol data unit (PPDU) from a second device, where the PPDU comprises a scrambling sequence and a service field, and a first group of bits in the scrambling sequence and a second group of bits in the service field indicate at least one candidate bandwidth. Then, in response to detecting a check error occurs in the second group of bits, the first device determines a bandwidth for communication between the first device and the second device based on the first group of bits.
Claims20
A bandwidth determining method, comprising:
- receiving, by a first device, a physical layer protocol data unit (PPDU) from a second device, wherein the PPDU comprises a scrambling sequence and a service field, and a first group of bits in the scrambling sequence and a second group of bits in the service field indicate at least one candidate bandwidth;
- and
- in response to detecting a check error occurs in the second group of bits, determining a bandwidth from the at least one candidate bandwidth for communication between the first device and the second device based on the first group of bits, wherein the determining a bandwidth for communication between the first device and the second device based on the first group of bits comprises:
- in response to determining that the first group of bits indicate a plurality of candidate bandwidths, determining the bandwidth for communication from the plurality of candidate bandwidths based on a bandwidth negotiation process between the first device and the second device, wherein the determining the bandwidth for communication from the plurality of candidate bandwidths comprises:
- in response to determining that the bandwidth negotiation process is a dynamic bandwidth negotiation process, selecting a smallest candidate bandwidth from the plurality of candidate bandwidths that correspond to a same group of bits in the scrambling sequence of the PPDU.
2 more elements
An apparatus, applied for a first device, comprising:
- at least one processor;
- and
- one or more memories coupled to the at least one processor and storing instructions for execution by the at least one processor to perform operations comprising:
- receiving, a physical layer protocol data unit (PPDU) from a second device, wherein the PPDU comprises a scrambling sequence and a service field, and a first group of bits in the scrambling sequence and a second group of bits in the service field indicate at least one candidate bandwidth;
- and
- in response to detecting a check error occurs in the second group of bits, determining a bandwidth from the at least one candidate bandwidth for communication between the apparatus and the second device based on the first group of bits, wherein the determining a bandwidth for communication between the apparatus and the second device based on the first group of bits comprises:
- in response to determining that the first group of bits indicate a plurality of candidate bandwidths, determining the bandwidth for communication from the plurality of candidate bandwidths based on a bandwidth negotiation process between the apparatus and the second device, wherein the determining the bandwidth for communication from the plurality of candidate bandwidths comprises:
- in response to determining that the bandwidth negotiation process is a dynamic bandwidth negotiation process, selecting a smallest candidate bandwidth from the plurality of candidate bandwidths that correspond to a same group of bits in the scrambling sequence of the PPDU.
5 more elements
An apparatus, applied for a first device, comprising:
- at least one processor;
- and
- one or more memories coupled to the at least one processor and storing instructions for execution by the at least one processor to perform operations comprising:
- receiving, a physical layer protocol data unit (PPDU) from a second device, wherein the PPDU comprises a group of bits that are associated with a bandwidth and that are in a service field;
- and
- in response to detecting a check error occurs in the group of bits, determining a bandwidth for communication between the apparatus and the second device based on a bandwidth negotiation process between the apparatus and the second device, wherein the determining a bandwidth for communication between the apparatus and the second device comprises:
- in response to determining that the bandwidth negotiation process is a dynamic bandwidth negotiation process, determining a preset bandwidth of 20 MHz as the bandwidth for communication.
4 more elements
Dependencies are inferred from the claim text.