Abstract: A method and apparatus for relaying messages in a mesh netork.

Abstract: Disclosed is a method for an access point of scheduling a plurality of wireless communication devices for transmission. The method comprises selecting (210) a respective modulation and coding scheme—MCS—for each of the plurality of wireless communication devices, wherein each of the respective MCS:s is associated with a respective power back-off, sorting (220) the plurality of wireless communication devices into two or more groups, wherein each group has a maximum size, and scheduling (230) each of the two or more groups of wireless communication devices on different respective transmission resources. The sorting comprises letting first wireless communication devices having the same first respective MCS and the same first respective power back-off belong to the same group.

Abstract: A technique for radio transmitting data is described. As to a method aspect of the technique data to be transmitted to a receiver is represented by at least two partial modulation symbols. Each of the at least two partial modulation symbols is associated to a different layer of the radio transmission to the receiver. A modulation symbol is generated by combining the at least two partial modulation symbols at different power levels according to the associated layer. The modulation symbol is transmitted to the receiver.

Abstract: A method is disclosed performed by an initiating communication node (110), for facilitating positioning determination in a Wi-Fi communication network (100). The method comprises sending, to a responding communication node (120), a request to start a position-related determination procedure and information of a first plurality of frequency bands over which the initiating communication node (110) is able to communicate. The method further comprises receiving, from the responding communication node (120), second information related to a second number of frequency bands over which the responding communication node (120) is able to communicate, and triggering start of the position-related determination procedure based on the received second information so that the position-related determination procedure is performed over at least one of a third number of frequency bands that occurs in both the first plurality of frequency bands and the second number of frequency bands.

Abstract: A technique for radio transmitting data is described. As to a method aspect of the technique data to be transmitted to a receiver is represented by at least two partial modulation symbols. Each of the at least two partial modulation symbols is associated to a different layer of the radio transmission to the receiver. A modulation symbol is generated by combining the at least two partial modulation symbols at different power levels according to the associated layer. The modulation symbol is transmitted to the receiver.

Abstract: A first radio device receives a first radio transmission from a second radio device. In response to reception of the first radio transmission by the first radio device being unsuccessful, the first radio device sends a second radio transmission to the second radio device. The second radio transmission comprises an indication to the second radio device that reception of the first radio transmission by the first radio device was unsuccessful. The first radio device generates the second radio transmission to be decodable by one or more other radio devices than the second radio device as comprising a positive acknowledgement message, indicating to the second radio device that reception of the first radio transmission by the first radio device was successful, as comprising a clear-to-send message to the second radio device, or as some other legacy message supported by the other radio device(s).

Abstract: Disclosed is a method for an access point of scheduling a plurality of wireless communication devices for transmission. The method comprises selecting (210) a respective modulation and coding scheme—MCS—for each of the plurality of wireless communication devices, where-in each of the respective MCS:s is associated with a respective power back-off, sorting (220) the plurality of wireless communication devices into two or more groups, wherein each group has a maximum size, and scheduling (230) each of the two or more groups of wireless communication devices on different respective transmission resources. The sorting comprises letting first wireless communication devices having the same first respective MCS and the same first respective power back-off belong to the same group.

Abstract: The present disclosure relates to methods, a device and a system for evaluation of channel estimate. One method is performed in a first access point arranged to communicate with one or more wireless devices through information streams that are created using multiple co-located antennas. The method comprises transmitting or receiving a packet A, to/from, the first wireless device, wherein the packet A is transmitted using a precoder determined using the channel estimate, retrieving information about possibly interfering transmissions C between further access points in the vicinity of the first access point, and respective second wireless devices; wherein the information comprises location information and timing information related to the possibly interfering transmissions, determining spatial separations between the transmissions A and C and evaluating the channel estimate, based on the determined spatial separations.

Abstract: A relay node in a mesh network receives a plurality of broadcasted path request (PREQ) messages. The relay node updates cluster information in a cluster table of the relay node based on the received PREQ messages. This cluster information identifies a cluster transmitter node and a list of cluster receiver nodes that describes a path from the cluster transmitter node to the relay node via the cluster receiver nodes. The relay node receives a Path Reply (PREP) message, and in response, transmits a modified PREP message created based on the received PREP message.

Abstract: There is provided a method for resource allocation for downlink transmission to at least two wireless communication devices in a wireless communication network. Simultaneous transmission to the wireless communication devices is allowed on one or more channels with at least two supported modulation alphabets of different sizes, each channel being defined by a set, called resource unit, of one or more subcarriers. The method comprises obtaining (S1), for each of the wireless communication devices, channel feedback information for each modulation alphabet the wireless communication device supports and for each resource unit on which the wireless communication device is allowed to receive a transmission.

Abstract: This disclosure provides a method, performed in a modulation and coding scheme, MCS module of a network node, for modulation and coding scheme, MCS, selection for a link between the network node and a terminal device in an orthogonal frequency division multiple access, OFDMA, based system. The OFDMA-based system provides a plurality of sub-carriers. The method comprises obtaining channel quality indicators for the plurality of sub-carriers, and estimating a link quality over a bandwidth corresponding to a set of the plurality of sub-carriers corresponding to a sub-channel based on the obtained channel quality indicators. The method comprises selecting a sub-channel out of the plurality of sub-carriers as a new sub-channel to be used for a communication to/from the terminal device based on the determined link quality.

Abstract: A method of an access point is disclosed. The access point is adapted to communicate (using a frequency bandwidth comprising one or more sub-bands) with wireless communication devices associated with the access point. Each of the wireless communication devices is adapted to operate under at least one of first and second latency requirements, wherein the first latency requirement is lower than the second latency requirement. Each of the wireless communication devices is also adapted to use a listen-before-talk approach (e.g. carrier sense multiple access with collision avoidance—CSMA/CA) to access a sub-band for transmission.

Abstract: The present disclosure relates to methods, a device and a system for evaluation of channel estimate. One method is performed in a first access point arranged to communicate with one or more wireless devices through information streams that are created using multiple co-located antennas. The method comprises transmitting or receiving a packet A, to/from, the first wireless device, wherein the packet A is transmitted using a precoder determined using the channel estimate, retrieving information about possibly interfering transmissions C between further access points in the vicinity of the first access point, and respective second wireless devices; wherein the information comprises location information and timing information related to the possibly interfering transmissions, determining spatial separations between the transmissions A and C and evaluating the channel estimate, based on the determined spatial separations.

Abstract: A message (300) that has been transmitted in a mesh network from a source node (102) and intended for reception by a destination node (104) is received by a relay node (125) and also received by a number of other nodes (121, 123). A minimized latency can be obtained by the use of a timer such that the message is relayed by the relay node (125) only if no other node has already relayed the message.

Abstract: A method of an access point is disclosed. The access point is adapted to communicate (using a frequency bandwidth comprising one or more sub-bands) with wireless communication devices associated with the access point. Each of the wireless communication devices is adapted to operate under at least one of first and second latency requirements, wherein the first latency requirement is lower than the second latency requirement. Each of the wireless communication devices is also adapted to use a listen-before-talk approach (e.g. carrier sense multiple access with collision avoidance—CSMA/CA) to access a sub-band for transmission.

Abstract: This disclosure provides a method, performed in a modulation and coding scheme, MCS module of a network node, for modulation and coding scheme, MCS, selection for a link between the network node and a terminal device in an orthogonal frequency division multiple access, OFDMA, based system. The OFDMA-based system provides a plurality of sub-carriers. The method comprises obtaining channel quality indicators for the plurality of sub-carriers, and estimating a link quality over a bandwidth corresponding to a set of the plurality of sub-carriers corresponding to a sub-channel based on the obtained channel quality indicators. The method comprises selecting a sub-channel out of the plurality of sub-carriers as a new sub-channel to be used for a communication to/from the terminal device based on the determined link quality.

Abstract: A method of a wireless terminal configured to operate in a wireless network using at least one wideband channel is disclosed. The wireless terminal is configured to operate in a narrowband within the wideband channel. The network comprises at least one other wireless terminal configured to operate in the entire wideband channel, and at least one access point (AP). The AP is configured to support transmission and reception over the entire wideband channel, wherein the wideband channel is dividable into a plurality of resource units.

Abstract: A method of a wireless terminal configured to operate in a wireless network using at least one wideband channel is disclosed. The wireless terminal is configured to operate in a narrowband within the wideband channel. The network comprises at least one other wireless terminal configured to operate in the entire wideband channel, and at least one access point (AP). The AP is configured to support transmission and reception over the entire wideband channel, wherein the wideband channel is dividable into a plurality of resource units.

Abstract: There is provided a method for resource allocation for downlink transmission to at least two wireless communication devices in a wireless communication network. Simultaneous transmission to the wireless communication devices is allowed on one or more channels with at least two supported modulation alphabets of different sizes, each channel being defined by a set, called resource unit, of one or more subcarriers. The method comprises obtaining (S1), for each of the wireless communication devices, channel feedback information for each modulation alphabet the wireless communication device supports and for each resource unit on which the wireless communication device is allowed to receive a transmission.

Abstract: A relay node in a mesh network receives a plurality of broadcasted path request (PREQ) messages. The relay node updates cluster information in a cluster table of the relay node based on the received PREQ messages. This cluster information identifies a cluster transmitter node and a list of cluster receiver nodes that describes a path from the cluster transmitter node to the relay node via the cluster receiver nodes. The relay node receives a Path Reply (PREP) message, and in response, transmits a modified PREP message created based on the received PREP message.