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US 9,179,300 B2Granted
Station-centric multi-user multiple input multiple output (MU-MIMO)
AssigneeQUALCOMM Incorporated
InventorsMaarten Menzo Wentink, Didier Johannes Richard Van Nee, Sameer Vermani, Simone Merlin, Santosh Paul Abraham
Life of this patent
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Abstract
Certain aspects of the present disclosure provide techniques and apparatus for using a Media Access Control (MAC) address of a station (STA) sending a direct link multi-user multiple-input multiple-output (MU-MIMO) transmission such that one or more STAs receiving the transmission may interpret a group identifier (ID) indicating a group to which the STAs belong. Using the group ID and the MAC address allows a STA to independently manage its group IDs, independent of an access point (AP) or other STAs in a Basic Service Set (BSS).
Claims40
A first apparatus for wireless communications, comprising:
- a processing system configured to determine a media access control (MAC) address of the first apparatus;
- and
- a transmitter configured to:
- transmit a multi-user (MU) packet to one or more second apparatuses, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the one or more second apparatuses belong;
- and
- transmit an indication of the MAC address of the first apparatus to the one or more second apparatuses for interpretation of the group ID, wherein the transmitter is configured to transmit the indication of the MAC address in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble.
3 more elements
A method for wireless communications, comprising:
- determining a media access control (MAC) address of a first apparatus;
- transmitting a multi-user (MU) packet to one or more second apparatuses, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the one or more second apparatuses belong;
- and
- transmitting an indication of the MAC address of the first apparatus to the one or more second apparatuses for interpretation of the group ID, wherein transmitting the indication of the MAC address comprises transmitting the indication of the MAC address in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble.
1 more element
A first apparatus for wireless communications, comprising:
- means for determining a media access control (MAC) address of the first apparatus;
- and
- means for transmitting a multi-user (MU) packet to one or more second apparatuses, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the one or more second apparatuses belong and wherein the means for transmitting is also configured to transmit an indication of the MAC address of the first apparatus to the one or more second apparatuses for interpretation of the group ID, wherein the means for transmitting is configured to transmit the indication of the MAC address in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble.
A non-transitory computer-readable medium comprising instructions executable to:
- determine a media access control (MAC) address of a first apparatus;
- transmit a multi-user (MU) packet to one or more second apparatuses, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the one or more second apparatuses belong;
- and
- transmit an indication of the MAC address of the first apparatus to the one or more second apparatuses for interpretation of the group ID, wherein the indication of the MAC address is transmitted in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble.
1 more element
A wireless node, comprising:
- at least one antenna;
- a processing system configured to determine a media access control (MAC) address of the wireless node;
- and
- a transmitter configured to:
- transmit, via the at least one antenna, a multi-user (MU) packet to one or more apparatuses, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the one or more apparatuses belong;
- and
- transmit, via the at least one antenna, an indication of the MAC address of the wireless node to the one or more apparatuses for interpretation of the group ID, wherein the indication of the MAC address is transmitted in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble.
4 more elements
A first apparatus for wireless communications, comprising:
- a receiver configured to:
- receive a multi-user (MU) packet from a second apparatus, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the first apparatus belongs;
- and
- receive an indication of a media access control (MAC) address of the second apparatus, wherein the indication of the MAC address of the second apparatus is received in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble;
- and
- a processing system configured to interpret the group ID based on the MAC address.
3 more elements
A method for wireless communications, comprising:
- receiving, at a first apparatus, a multi-user (MU) packet from a second apparatus, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the first apparatus belongs;
- receiving an indication of a media access control (MAC) address of the second apparatus, wherein the indication of the MAC address of the second apparatus is received in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble;
- and interpreting the group ID based on the MAC address.
A first apparatus for wireless communications, comprising:
- means for receiving a multi-user (MU) packet from a second apparatus, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the first apparatus belongs and wherein the means for receiving is also configured to receive an indication of a media access control (MAC) address of the second apparatus, wherein the indication of the MAC address of the second apparatus is received in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble;
- and
- means for interpreting the group ID based on the MAC address.
A non-transitory computer-readable medium comprising instructions executable to:
- receive, at a first apparatus, a multi-user (MU) packet from a second apparatus, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the first apparatus belongs;
- receive an indication of a media access control (MAC) address of the second apparatus, wherein the indication of the MAC address of the second apparatus is received in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble;
- and
- interpret the group ID based on the MAC address.
1 more element
A wireless node, comprising:
- at least one antenna;
- a receiver configured to:
- receive, via the at least one antenna, a multi-user (MU) packet from an apparatus, wherein the MU packet comprises an indication of a group identifier (ID) indicating a group to which the wireless node belongs;
- and receive, via the at least one antenna, an indication of a media access control (MAC) address of the apparatus, wherein the indication of the MAC address of the apparatus is received in a preamble of the MU packet and wherein the indication of the MAC address is located after a very high throughput (VHT) signal A (VHT-SIG-A) field and before training fields in the preamble;
- and a processing system configured to interpret the group ID based on the MAC address.
2 more elements
Dependencies are inferred from the claim text.