摘要:
The present invention relates to the field of coordinated multipoint transmission and reception (CoMP) in wireless communication networks, in particular to methods, an apparatus, and a network node for use in performing coordinated data transmissions in a wireless communication network. A method for use in a network node for coordinating data transmission to user equipments in a wireless communication network, wherein the wireless communication network comprising at least two access nodes each access node having one or more antennas and being arranged to perform coordinated data transmissions to user equipments is provided. The method comprising: obtaining signal strength values associated with the one or more antennas of the at least two access nodes for a number of user equipments; arranging the number of user equipments into one or more groups of user equipments and associating each of the one or more groups of user equipments with a sub-set of the one or more antennas of the at least two access nodes based on the obtained signal strength values; and coordinating data transmission performed by the at least two access nodes to each of the one or more groups of user equipments based on the subset of the one or more antennas of the at least two access nodes associated with each group of user equipments, respectively.
摘要:
Method and arrangement (600) in a first network node (120-1), serving a first cell (130-1), for forming a coordination group for coordinating multipoint wireless communication. The method comprising determining (502) interference within the first cell (130-1). Also, the method comprises identifying (503) a second network node (120-2), which is either transmitting radio signals causing the interference, serving a user equipment (110-1), which transmits radio signals causing the interference, or being the intended recipient of radio signals causing the interference. Additionally, the method comprises transmitting (504) a token to the identified second network node (120-2), inviting it to coordinate the wireless communication. Furthermore, in addition, if acceptance is received, the method comprises forming (505) a coordination group together with the second network node (120-2), and coordinate the wireless communication.Further, a method and arrangement (800) in a second network node (120-2) is presented.
摘要:
The present invention relates to the field of coordinated multipoint transmission and reception (CoMP) in wireless communication networks, in particular to methods, an apparatus, and a network node for use in performing coordinated data transmissions in a wireless communication network. A method for use in a network node for coordinating data transmission to user equipments in a wireless communication network, wherein the wireless communication network comprising at least two access nodes each access node having one or more antennas and being arranged to perform coordinated data transmissions to user equipments is provided. The method comprising: obtaining signal strength values associated with the one or more antennas of the at least two access nodes for a number of user equipments; arranging the number of user equipments into one or more groups of user equipments and associating each of the one or more groups of user equipments with a sub-set of the one or more antennas of the at least two access nodes based on the obtained signal strength values; and coordinating data transmission performed by the at least two access nodes to each of the one or more groups of user equipments based on the subset of the one or more antennas of the at least two access nodes associated with each group of user equipments, respectively.
摘要:
Method and arrangement (600) in a first network node (120-1), serving a first cell (130-1), for forming a coordination group for coordinating multipoint wireless communication. The method comprising determining (502) interference within the first cell (130-1). Also, the method comprises identifying (503) a second network node (120-2), which is either transmitting radio signals causing the interference, serving a user equipment (110-1), which transmits radio signals causing the interference, or being the intended recipient of radio signals causing the interference. Additionally, the method comprises transmitting (504) a token to the identified second network node (120-2), inviting it to coordinate the wireless communication. Furthermore, in addition, if acceptance is received, the method comprises forming (505) a coordination group together with the second network node (120-2), and coordinate the wireless communication.Further, a method and arrangement (800) in a second network node (120-2) is presented.
摘要:
A method and arrangement for enabling communication of data between a UE and a first base station in a cellular communication network further comprising the second base station, and the second base station is connected to the first base station via a communication interface. A scheduling request is received from the first base station. The scheduling request is based on a suggested scheduling which is determined by the first base station, and the suggested scheduling concerns the communication of data. Scheduling information is determined based on the scheduling request, and the scheduling information is transmitted to the UE. By determining a suggested scheduling in a micro base station, but transmitting scheduling information from an overlaying macro base station, local awareness of communication conditions may be applied, and interferences from neighboring micro base stations may be decreased.
摘要:
A method and arrangement for enabling communication of data between a UE and a first base station in a cellular communication network further comprising the second base station, and the second base station is connected to the first base station via a communication interface A scheduling request is received 800 from the first base station. The scheduling request is based on a suggested scheduling which is determined by the first base station, and the suggested scheduling concerns the communication of data. Scheduling information is determined 802 based on the scheduling request, and the scheduling information is transmitted 804 to the UE. By determining a suggested scheduling in a micro base station, but transmitting scheduling information from an overlaying macro base station, local awareness of communication conditions may by applied, and interferences from neighbouring micro base stations may be decreased.
摘要:
Methods and arrangements in network nodes in a cellular communication system The methods and arrangements relate to the delegation of serving functions, associated with a mobile terminal, from one node to another The method and arrangement in a delegating entity relate to obtaining (1002) information on the mobile terminal and at least one access point, and analyzing said information The method and arrangement further relates to determining (1006), based on the analysis and predefined criteria, whether a second access point is more suitable than a first access point for executing one or more serving functions related to the mobile terminal When a second access point is found to be more suitable for executing one or more of the serving functions, the delegating node may arrange (1008) such that the one or more serving functions are delegated from the first access point to the second access point
摘要:
Methods and arrangements in a data transmitting node, a data receiving node and an intermediate node, where one of the data transmitting node and the data receiving node is a mobile terminal and the other nodes are access points. The methods and arrangements involve that ACK and NACK feedback are transmitted on different respective paths, according to different criteria, when the mobile terminal is simultaneously associated with more than one access point.
摘要:
According to embodiment of the present invention, there is provided a radio base station (20) and a corresponding method for estimating the quality of the uplink control channel. The method comprises measuring (32, 42) a quality parameter of the uplink data channel, and using (38, 50) this to estimate the quality of the uplink control channel. In one embodiment, measurements of the uplink control channel are taken and their reliability determined. If the reliability is low (i.e. below a threshold, or below the respective measurements taken on the uplink data channel), then measurements on the data channel are used instead of those made on the control channel to estimate the control channel quality.
摘要:
According to embodiment of the present invention, there is provided a radio base station (20) and a corresponding method for estimating the quality of the uplink control channel. The method comprises measuring (32, 42) a quality parameter of the uplink data channel, and using (38, 50) this to estimate the quality of the uplink control channel. In one embodiment, measurements of the uplink control channel are taken and their reliability determined. If the reliability is low (i.e. below a threshold, or below the respective measurements taken on the uplink data channel), then measurements on the data channel are used instead of those made on the control channel to estimate the control channel quality.