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1. 发明申请

US20220021503A1 Acknowlegment for Simultaneous Transmission and Reception 有权
公开(公告)号：US20220021503A1
公开(公告)日：2022-01-20
申请号：US17294758
申请日：2018-11-22
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Leif Wilhelmsson , Lakshmikanth Guntupalli , Naveed Butt , Rocco Di Taranto , Dennis Sundman , Miguel Lopez , Mehmet Burak Guldogan , Guido Roland Hiertz
IPC分类号： H04L5/00 , H04L1/00 , H04L1/18 , H04W24/08
摘要： Methods are disclosed for communication devices capable of simultaneous transmission and reception, wherein a first method is for reception of a packet comprising a header and a payload and a second method is for transmission of a packet comprising a header and a payload. The second method comprises transmitting at least a part of the header. The first method comprises receiving at least a part of the header, attempting to decode the part of the header, and (when the part of the header is successfully decoded) transmitting a header acknowledgement signal. The second method comprises monitoring receipt of a header acknowledgement signal, and (when absence of the header acknowledgement signal is detected) interrupting the transmission of the packet and scheduling the packet for retransmission. Corresponding apparatuses, transceivers, communication devices and computer program products are also disclosed.

2. 发明申请

US20190132844A1 Methods, Network Node and Wireless Communication Device for Handling of Signals in a Wireless Communication Network 审中-公开
公开(公告)号：US20190132844A1
公开(公告)日：2019-05-02
申请号：US16096052
申请日：2016-06-03
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Miguel Lopez , Naveed Butt , Leif Wilhelmsson
IPC分类号： H04W72/04 , H04L1/00
摘要： Disclosed is a network node (110) and a method performed by a network node (110) of a wireless communication network (100) for wireless transmission of signals to wireless communication devices (120, 130). The method comprises selecting an adapted modulation and coding scheme, MCS, for a first signal to be transmitted to a first wireless communication device (120) at a first frequency bandwidth, the MCS being adapted to that a second signal is to be transmitted to a second wireless communication device (130) concurrently with the first signal, the second signal being transmitted at a second frequency bandwidth that is a subset of the first frequency bandwidth, the second frequency bandwidth being narrower than the first frequency bandwidth. The method further comprises transmitting the first signal to the first wireless communication device (120) at the first frequency bandwidth coded with the adapted MCS, and transmitting the second signal to the second wireless communication device (130) at the second frequency bandwidth, the second signal being sent concurrently with the first signal.

3. 发明申请

US20180092077A1 Resource Allocation for Downlink Transmission to at Least Two Wireless Communication Devices 审中-公开
公开(公告)号：US20180092077A1
公开(公告)日：2018-03-29
申请号：US15033921
申请日：2016-04-12
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Dzevdan Kapetanovic , Naveed Butt , Rocco Di Taranto
IPC分类号： H04W72/04 , H04W72/08 , H04L5/00 , H04L5/02
CPC分类号： H04W72/044 , H04L1/0003 , H04L1/0026 , H04L5/001 , H04L5/0037 , H04L5/006 , H04L5/0085 , H04L5/023 , H04W72/082 , H04W72/085
摘要： 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. The method also comprises selecting (S2), from a number of possible assignments of the wireless communication devices to different resource units and different modulation alphabets, a resource allocation based on the channel feedback information including an assignment of the wireless communication devices to at least one resource unit and at least one modulation alphabet among those assignments providing the highest total downlink throughput for the wireless communication devices.

4. 发明授权

US10470215B2 Coexistence of users with different latency requirements 有权
公开(公告)号：US10470215B2
公开(公告)日：2019-11-05
申请号：US15761807
申请日：2015-09-23
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Naveed Butt , Rocco Di Taranto , Dzevdan Kapetanovic , Thomas Nilsson
IPC分类号： H04W74/08 , H04W72/04 , H04W72/08
摘要： 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. The method comprises (for each of the sub-bands) allowing at most one wireless communication device operating under the first latency requirement to attempt accessing the sub-band and (for each sub-band where a wireless communication device operating under the first latency requirement is allowed to attempt accessing the sub-band) allowing also one or more wireless communication device operating under the second latency requirement to attempt accessing the sub-band. The method also comprises enforcing a maximum duration of time for each transmission of a wireless communication device operating under the second latency requirement using a sub-band where a wireless communication device operating under the first latency requirement is allowed to attempt accessing the sub-band, wherein the maximum duration of time is based on the first latency requirement. Corresponding method for a wireless communication device, arrangements, access point, wireless communication device and computer program products are also disclosed.

5. 发明授权

US10306556B2 Access point notification of wireless stations about availability of data 有权
公开(公告)号：US10306556B2
公开(公告)日：2019-05-28
申请号：US15312634
申请日：2016-02-02
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Naveed Butt , Bryan Smith , Leif Wilhelmsson
IPC分类号： H04L12/28 , H04W52/02 , H04W28/02 , H04W92/20 , H04J1/16
摘要： An access point device comprising a transceiver configured to receive and send messages on a communication channel, and a controller configured to cause the transceiver to transmit beacon messages regularly on the communication channel is disclosed. The beacon messages include a first indication that data, for one or more stations arranged to communicate with the access point device over the communication channel, is buffered in a buffer associated with the access point device when data is buffered in the buffer. The transceiver is arranged to transmit at least one utility message, transmitted over the communication channel between transmissions of the beacon messages, wherein the at least one utility message comprises a second indication for at least one of the one or more stations as to whether an upcoming beacon message comprises the first indication that data for the at least one of the one or more stations is buffered in the buffer. The station is arranged to communicate over the communication channel with the access point device, and arranged to apply a power save mode including a Doze state and an Awake state, wherein, when the station is in the Doze state, the station occasionally enters the Awake state for determining whether data for the station is buffered in the buffer and then re-enters the Doze state if no data for the station is indicated to be buffered in the buffer. The station is arranged to perform the re-entering to the Doze state at the first found one of the first indication and the second indication that indicates that no data for the station is buffered in the buffer. Methods and computer programs for the station and the access point device are also disclosed.

6. 发明申请

US20180097680A1 Dual Carrier Modulation with Single Carrier Reception 有权
公开(公告)号：US20180097680A1
公开(公告)日：2018-04-05
申请号：US15035521
申请日：2016-04-18
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Rocco Di Taranto , Naveed Butt , Leif Wilhelmsson
IPC分类号： H04L27/28 , H04L5/06 , H04L27/26 , H04W72/08
CPC分类号： H04L27/28 , H04B1/69 , H04L5/0007 , H04L5/06 , H04L27/2602 , H04W72/08
摘要： 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.The method comprises receiving a trigger from the AP, wherein the trigger comprises an indication of a first resource unit and a second resource unit of the plurality of resource units on which the AP will transmit data intended to the wireless terminal using a dual carrier modulation (DCM) transmission and measuring a signal quality of the first and second resource units by measuring, in a frequency of the wideband channel which corresponds to the first and second resource unit, a reception quality of data transmitted from the AP to the at least one other wireless terminal.The method also comprises determining which of the first and second resource units has a highest signal quality based on the measured signal quality and receiving the DCM-transmission on the resource unit determined to have the highest signal quality.Also disclosed is an arrangement of a wireless terminal and an access point, a method of an access point, an access point, a wireless terminal and a computer program product.

7. 发明申请

US20220116991A1 Methods, Apparatus and Device-Readable Mediums for Scheduling Transmissions in a Wireless Network 有权
公开(公告)号：US20220116991A1
公开(公告)日：2022-04-14
申请号：US17421081
申请日：2019-01-16
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Leif Wilhelmsson , Guido Roland Hiertz , Naveed Butt
IPC分类号： H04W74/08 , H04W74/06 , H04L5/00
摘要： One aspect of the disclosure provides a method performed by a transmitting device, for transmitting wirelessly to a receiving device in a wireless network. The method comprises: obtaining information which is indicative of a level of wireless activity caused by interfering transmissions by one or more interfering devices, experienced by one or more receiving devices on one or more first channels configured for transmissions by the one or more receiving devices; and determining whether to transmit to a receiving device of the one or more receiving devices using one or more second channels based on the information indicative of the level of wireless activity experienced by the one or more receiving devices on the one or more first channels.

8. 发明申请

US20210392655A1 Scheduling Apparatus and Method 有权
公开(公告)号：US20210392655A1
公开(公告)日：2021-12-16
申请号：US17286589
申请日：2018-10-19
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Leif Wilhelmsson , Naveed Butt , Rocco Di Taranto , Dennis Sundman , Miguel Lopez , Guido Roland Hiertz , Mehmet Burak Guldogan , Lakshmikanth Guntupalli
IPC分类号： H04W72/12 , H04L1/18 , H04W74/08
摘要： A method of a scheduling apparatus for multi-user scheduling, wherein the multi-user scheduling may—for example—be in an unlicensed communication environment. The method comprises transmitting a first signal to a first set of users wherein the first signal is indicative of a request for user-specific information, receiving—responsive to transmitting the first signal—a respective second signal from each of a second set of users wherein the second signal is indicative of the requested user-specific information, and scheduling—responsive to receiving the respective second signals—a third set of users based on the received second signals. The second set is a subset of the first set of users, and the third set of users is a subset of, or coincides with, the second set of users. Corresponding scheduling apparatus, wireless communication apparatus and computer program product are also disclosed.

9. 发明授权

US11018808B2 Reception failure indication by legacy message 有权
公开(公告)号：US11018808B2
公开(公告)日：2021-05-25
申请号：US15760262
申请日：2018-02-26
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Rocco Di Taranto , Naveed Butt , Thomas Nilsson , Leif Wilhelmsson
IPC分类号： H04L1/16 , H04L1/18 , H04W72/04 , H04W74/08
摘要： 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).

10. 发明申请

US20210168831A1 Access Point, Station, Methods and Computer Programs 有权
公开(公告)号：US20210168831A1
公开(公告)日：2021-06-03
申请号：US16613664
申请日：2017-11-02
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Leif Wilhelmsson , Naveed Butt , Rocco di Taranto , Dennis Sundman
IPC分类号： H04W72/12 , H04W72/04
摘要： An access point is arranged for serving both wideband wireless stations and narrowband wireless stations where the narrowband wireless stations operate on a subset of the bandwidth on which the wideband wireless stations operate. The access point comprises a transceiver and a controller. The controller is arranged to schedule simultaneous usage of a first set of subcarriers for a wideband station and a first narrowband wireless station by causing the transceiver to transmit a first subcarrier suggestion, about the first set of subcarriers to be used, to the first narrowband wireless station and to transmit a modulation and coding scheme, MCS suggestion, about subcarriers including the first set of subcarriers to be used, to the wideband station. The suggested MCS is adapted to have increased robustness in view of any interference on a transmission from the wideband wireless station caused by a transmission from the first narrowband wireless station in the first set of subcarriers. A station arranged to communicate with the access point, and methods and computer programs are also disclosed.

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