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EP-4568395-B1 - RADIO-NETWORK NODE, WIRELESS DEVICE AND METHODS PERFORMED THEREIN

EP4568395B1EP 4568395 B1EP4568395 B1EP 4568395B1EP-4568395-B1

Inventors

  • ANDERSSON, Håkan
  • ZHANG, QIANG
  • FRENNE, MATTIAS
  • FURUSKOG, Johan
  • BERGSTRÖM, Andreas
  • HESSLER, Martin
  • WIBERG, NICLAS

Dates

Publication Date
20260513
Application Date
20170324

Claims (8)

  1. A method performed by a radio-network node for handling a data transmission, from a wireless device (10) to the radio-network node (12), in a wireless communication network (1), the method comprising: - scheduling (302) one or more resources for carrying an uplink data transmission from the wireless device (10) over a channel, and one or more resources for carrying for carrying a feedback transmission, of a downlink data transmission from the radio-network node, over the same channel; - transmitting (303) a single control message to the wireless device (10), which single control message indicates the one or more resources scheduled for carrying the uplink data transmission and the one or more resources scheduled for the feedback transmission over the same channel; and - reading (304) feedback information received over the channel as scheduled, wherein the feedback information is multiplexed with uplink data of the uplink data transmission over the same channel without destroying the uplink data transmission using the one or more resources indicated in the control message.
  2. The method according to claim 1, further comprising - determining (305) based on the read feedback information, whether to retransmit downlink data of the downlink data transmission or not.
  3. The method according to any of the claims 1-2, wherein the single control message is an uplink grant and the channel is a physical uplink shared channel.
  4. A radio-network node (12) for handling a data transmission, from a wireless device (10) to the radio-network node (12), in a wireless communication network (1), the radio-network node (12) being configured to: schedule one or more resources for carrying an uplink data transmission from the wireless device (10) over a channel, and one or more resources for carrying a feedback transmission, of a downlink data transmission from the radio-network node, over the same channel; transmit a single control message to the wireless device (10), which single control message indicates the one or more resources scheduled for carrying the uplink data transmission and the one or more resources scheduled for carrying the feedback transmission over the same channel; and to read feedback information received over the channel as scheduled, wherein the feedback information is multiplexed with uplink data of the uplink data transmission over the same channel without destroying the uplink data transmission using the one or more resources indicated in the control message.
  5. The radio-network node (12) according to claim 4, further being configured to determine, based on the read feedback information, whether to retransmit downlink data of the downlink data transmission or not.
  6. The radio-network node (12) according to any of the claims 4-5 wherein the single control message is an uplink grant and the channel is a physical uplink shared channel.
  7. A computer program comprising instructions, which, when executed on at least one processor, cause the at least one processor to carry out any of the methods according to any of the claims 1-3, as performed by the radio network node (12).
  8. A computer-readable storage medium, having stored thereon a computer program comprising instructions which, when executed on at least one processor, cause the at least one processor to carry out the method according to any of the claims 1-3, as performed by the radio network node (12).

Description

TECHNICAL FIELD Embodiments herein relate to a radio-network node, a wireless device and methods performed therein for wireless communication. Furthermore, a computer program and a computer-readable storage medium are also provided herein. In particular, embodiments herein relate to handling communication of data, such as data transmission to the radio-network node, in a wireless communication network. BACKGROUND In a typical wireless communication network, wireless devices, also known as wireless communication devices, mobile stations, stations (STA) and/or user equipments (UE), communicate via a Radio Access Network (RAN) with one or more core networks (CN). The RAN covers a geographical area which is divided into service areas or cell areas, which may also be referred to as a beam or a beam group, with each service area or cell area being served by a radio-network node such as a radio access node e.g., a Wi-Fi access point or a radio base station (RBS), which in some networks may also be denoted, for example, a "NodeB" or "eNodeB". A service area or cell area is a geographical area where radio coverage is provided by the radio-network node. The radio-network node communicates over an air interface operating on radio frequencies with a wireless device within range of the radio-network node. A Universal Mobile Telecommunications System (UMTS) is a third generation (3G) telecommunication network, which evolved from the second generation (2G) Global System for Mobile Communications (GSM). The UMTS terrestrial radio access network (UTRAN) is essentially a RAN using wideband code division multiple access (WCDMA) and/or High Speed Packet Access (HSPA) for user equipments. In a forum known as the Third Generation Partnership Project (3GPP), telecommunications suppliers propose and agree upon standards for third generation networks, and investigate enhanced data rate and radio capacity. In some RANs, e.g. as in UMTS, a plurality of radio-network nodes may be connected, e.g., by landlines or microwave, to a controller node, such as a radio-network controller (RNC) or a base station controller (BSC), which supervises and coordinates various activities of the plurality of radio-network nodes connected thereto. This type of connection is sometimes referred to as a backhaul connection. The RNCs and BSCs are typically connected to one or more core networks. Specifications for Evolved Packet System (EPS), also called a Fourth Generation (4G) network, have been completed within 3GPP and this work continues in the coming 3GPP releases, for example to specify a Fifth Generation (5G) network. The EPS comprises the Evolved Universal Terrestrial Radio Access Network (E-UTRAN), also known as the Long Term Evolution (LTE) radio access network, and the Evolved Packet Core (EPC), also known as System Architecture Evolution (SAE) core network. E-UTRAN/LTE is a variant of a 3GPP radio access network wherein the radio-network nodes are directly connected to the EPC core network rather than to RNCs. In general, in E-UTRAN/LTE the functions of an RNC are distributed between the radio-network nodes, e.g. eNodeBs in LTE, and the core network. As such, the RAN of an EPS has an essentially "flat" architecture comprising radio-network nodes connected directly to one or more core networks, i.e. they are not connected to RNCs. To compensate for that, the E-UTRAN specification defines a direct interface between the radio-network nodes, this interface being denoted the X2 interface. EPS is the Evolved 3GPP Packet Switched Domain. Advanced Antenna Systems (AASs) is an area where technology has advanced significantly in recent years and where a rapid technology development in the years to come is foreseen. Hence it is natural to assume that AASs in general and massive Multiple Input Multiple Output (MIMO) transmission and reception in particular will be a cornerstone in a future Fifth Generation (5G) system. In relation to AAS, beam-forming is becoming increasingly popular and capable and it is not only for transmission of data but also for transmission of control information. This is one motivation behind a control channel in LTE known as Enhanced Physical Downlink Control Channel (ePDCCH). When the control channel is beam-formed, the cost of transmitting the overhead control information can be reduced due to the increased link budget provided by the additional antenna gain. Automatic repeat-request (ARQ) is an error-control technique used in many wireless networks. With ARQ, a receiver of data transmissions sends acknowledgements (ACKs) or negative acknowledgments (NACKs) to inform the transmitter of whether each message has been correctly received. Incorrectly received messages, as well as messages that aren't acknowledged at all, can then be re-transmitted. Hybrid ARQ (HARQ) combines ARQ with forward error-correction (FEC) coding of the data messages, to improve the ability of the receiver to receive and correctly decode the transmitted mess