Method and apparatus for configuring a signal field including allocation information for a resource unit in wireless local area network system
AssigneeLG Electronics Inc.
InventorsJinsoo Choi, Dongguk Lim, Hangyu Cho, Eunsung Park
Life of this patent
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Abstract
Proposed is a control field including allocation information regarding a resource unit (RU) in a wireless local area network (WLAN) system supporting a plurality of RUs. A data field may be transmitted in unit of the RU. For a case where two 106-RUs are arranged and a plurality of user stations (STAs) are multiplexed to the respective 106-RUs, a SIG-B field may be used to perform signaling. More specifically, the number of STAs to be multiplexed may be indicated by using first and second identification bits in a user-common field of the SIG-B field.
Claims10
A method used in a wireless local area network (WLAN), the method comprising:
- receiving, by a receiving station (STA), a physical layer protocol data unit (PPDU) comprising a first control field including control information for interpreting the PPDU, a second control field including a common field and a user specific field, and a data field,
- wherein the common field includes allocation information for a first resource unit (RU) having 106 subcarriers and a second RU having 106 subcarriers,
- wherein the common field includes a first number bit related to a number of multiple user-multiple input multiple output (MU-MIMO) users allocated to the first RU and a second number bit related to a number of MU-MIMO users allocated to the second RU,
- wherein the number of multiple user-multiple input multiple output (MU-MIMO) users allocated to the first RU or the second RU is 1, 2, 3 or 4,
- wherein each of the first and second number bits has a length of 2 bits,
- wherein the user specific field includes first identification information for the MU-MIMO users allocated to the first RU and second identification information for the MU-MIMO users allocated to the second RU;
- determining, by the receiving STA, at least one resource unit (RU) allocated for the receiving STA based on the second control field;
- and
- decoding, by the receiving STA, the data field based on the at least one RU.
A station in a wireless local area network (WLAN), comprising:
- a transceiver transmitting or receiving radio signals;
- and
- a processor connected to the transceiver and configured to:
- instruct the transceiver to receive, a physical layer protocol data unit (PPDU) comprising a first control field including control information for interpreting the PPDU, a second control field including a common field and a user specific field, and a data field,
- wherein the common field includes allocation information for a first resource unit (RU) having 106 subcarriers and a second RU having 106 subcarriers,
- wherein the common field includes a first number bit related to a number of multiple user-multiple input multiple output (MU-MIMO) users allocated to the first RU and a second number bit related to a number of MU-MIMO users allocated to the second RU,
- wherein the number of multiple user-multiple input multiple output (MU-MIMO) users allocated to the first RU or the second RU is 1, 2, 3 or 4,
- wherein each of the first and second number bits has a length of 2 bits,
- wherein the user specific field includes first identification information for the MU-MIMO users allocated to the first RU and second identification information for the MU-MIMO users allocated to the second RU;
- determine at least one resource unit (RU) allocated for the receiving station based on the second control field;
- and
- decode the data field by based on the at least one RU.
Dependencies are inferred from the claim text.