Abstract: A user equipment, user equipment method, location server, location server method and computer program are disclosed. The method performed at the user equipment comprises: monitoring for a position reference signal broadcast by a network node; measuring a time of arrival of a peak in a received signal indicative of receipt of said position reference signal and measuring a time of arrival of at least one further peak in said received signal; transmitting a time offset signal indicative of a time difference between said arrival of said at least one further peak and said peak as part of an enhanced reference time difference signal.

Abstract: The present disclosure provides a method and apparatus for X2 signaling. The method comprises, in a wireless communication network supporting coordinated multiple point transmission, transmitting load information from a first base station to at least one second base station via X2 signaling, wherein the load information comprises at least one item of i) a relative narrowband beam information element or ii) a relative narrowband scheduling information element. Current X2 signaling is enhanced to support coordinated multiple point transmission with non-ideal backhaul and improve interference coordination.

Abstract: The present invention provides a method, in a first node, for performing Co MP-based resource allocation for a second node, the method comprising steps of: a. selecting at least one Co MP hypothesis from among a plurality of Co MP hypotheses based on measurement theses based on measurement information reported by a second node; b. transmitting a resource allocation request to the second node; c. receiving feedback information from the second node with response to the resource allocation request, and performing a corresponding operation. According to the method of the present embodiment, the CoMP transmission performance can be enhanced, and the second node has more freedom to select a CoMP hypothesis more suitable for the second node based on its own status.

Abstract: The position detection of user equipment within a network, and the corresponding methods performed at the network node, user equipment and location server are disclosed, along with these entities and a computer program. The method performed at the network node comprises within a position reference signal time period, broadcasting: a first position reference signal within a first frequency band and during a first time period; and at least one further position reference signal within at least one further frequency band and during at least one subsequent time period, said at least one further frequency band being different to said first frequency band.

Abstract: Various communication systems may benefit from improved positioning technology. For example, communication systems may benefit from taking into account radio signal capabilities of the user equipment when determining the position of the user equipment. A method may include sending a request from a network entity to a user equipment. The method may also include receiving a response to the request from the user equipment. The response may include information about radio signal capabilities of the user equipment. In addition, the method may include determining location assistance data based on the received radio signal capabilities.

Abstract: The present invention relates to a method and an apparatus for controlling a rank information (RI) report. According to an embodiment of the present invention, a method for controlling an RI report of a User Equipment (UE) in a base station of a Long Term Evolution (LTE) mobile communications network is provided. The method includes the following steps: determining a Channel State Information (CSI) report set for a UE, where the CSI report set includes multiple CSI feedback modes (CSI processes); sending to the UE Radio Resource Control (RRC) signaling indicating the CSI report set; and sending to the UE signaling indicating a precoding codebook subset and/or rank restriction of each CSI feedback mode in the CSI report set. According to the above embodiment, rank selection and high rank transmission are supported for coordinated multi-point (CoMP) transmission in the LTE mobile communications network.

Abstract: The present invention provides a method, in a first node, for performing Co MP-based resource allocation for a second node, the method comprising steps of: a. selecting at least one Co MP hypothesis from among a plurality of Co MP hypo based on measurement theses based on measurement information reported by a second node; b. transmitting a resource allocation request to the second node; c. receiving feed-back information from the second node with response to the resource allocation request, and performing a corresponding operation. According to the method of the present embodiment, the CoMP transmission performance can be enhanced, and the second node has more freedom to select a CoMP hypothesis more suitable for the second node based on its own status.

Abstract: An object of the invention is providing methods, devices and a System for resource allocation between multiple cells based on coordinated multipoint. One or more second devices determines, based on one or more coordinated multipoint simulation scenarios, benefit metric information corresponding to the coordinated multipoint simulation scenario; and the first device determines resource allocation information corresponding to an associated device based on the benefit metric information. Compared with the prior art, the present invention realizes resource allocation between multiple cells in a centralized coordinated multipoint architecture or a distributed coordinated multipoint architecture based on the defined benefit metric information and the proposed exchange mode of benefit metric information, particularly coordinated multipoint resource allocation in a non-ideal backhaul status, thereby mitigating inter-cell interference and meanwhile guaranteeing benefits of multiple cells.

Abstract: The present invention relates to a method and an apparatus for controlling a Channel State Information (CSI) report. According to an embodiment of the present invention, a method for controlling a CSI report of a User Equipment (UE) in a base station of a Long Term Evolution (LTE) mobile communication network is provided. The method includes a step of determining a CSI report set for a UE, where the CSI report set includes multiple CSI feedback modes, and each CSI feedback mode is defined to include a Non-Zero Power Reference Signal (NZP RS) resource part for channel measurement and an Interference Measurement Resource (IMR) part for interference measurement. In addition, the method further includes a step of sending to the UE Radio Resource Control (RRC) signaling indicating the CSI report set.

Abstract: The present disclosure provides a method and apparatus for X2 signaling. The method comprises, in a wireless communication network supporting coordinated multiple point transmission, transmitting load information from a first base station to at least one second base station via X2 signaling, wherein the load information comprises at least one item of i) a relative narrowband beam information element or ii) a relative narrowband scheduling information element. Current X2 signaling is enhanced to support coordinated multiple point transmission with non-ideal backhaul and improve interference coordination.

Abstract: The present invention relates to apparatuses and methods for exchange of signaling information in coordinated multi-point (CoMP). Partial embodiments of the present invention provide a method for exchange of signaling information in CoMP, where a first transmission point and a second transmission point provide CoMP for at least one user equipment (UE). The method includes: the first transmission point determining resource allocation for at least one of the first transmission point and the second transmission point, that is, the first transmission point notifying the second transmission point of the determined resource allocation. The resource allocation includes at least one of beamforming, power, and UE scheduling of the corresponding transmission point. The present invention can support CoMP under practical network conditions more effectively.

Abstract: The present invention is related to an apparatus and method for signaling information exchanging in CoMP (Coordinated Multi-Point). According to an embodiment of the present invention, in a method for signaling information exchanging, a service TP (Transmission Point) and at least one neighboring TP provide the CoMP to at least one UE (User Equipment). The method comprises receiving by the service TP a precoder feedback from at least one UE, wherein the precoder is specific to one of the least one neighboring TP. The service TP decides if the precoder should be sent to the specific neighboring TP. If affirmative, the service TP compresses an indicator indicating the precoder and sends the compressed indicator to the specific neighboring TP.

Abstract: Method and an apparatus for configuring a coordinated multi-point measurement set. An embodiment of the present invention provides a method at a neighboring base station side (26) for configuring a coordinated multi-point measurement set for a user equipment UE (22), and the method includes: a neighboring base station (26) of the UE (22) receiving (40), from a serving base station (24) of the UE (22), configuration information about an uplink signal sent by the UE (22); the neighboring base station (26) detecting (42), according to the configuration information, the uplink signal sent by the UE; and the neighboring base station reporting (44), to the serving base station (24), a transmission port TP receiving the uplink signal and strength of the TP receiving the uplink signal. The present invention is based on the latest development demands of LTE/LTE-A protocols, and is applicable to various scenes.

Abstract: A method and apparatus for generating a codebook and the associated data in a network device are provided in the invention. The method comprises the steps of generating a first row sub-matrix corresponding to a first group of antennas respectively for the respective ranks of the codebook to be generated; generating a second row sub-matrix corresponding to a second group of antennas respectively for the respective ranks based on an amount of the phase adjustment of the second group of antennas with respect to the first group of antennas; and generating a second codebook in accordance with the first row sub-matrix and the second row sub-matrix.

Abstract: The present invention relates to Coordinated Multiple Point (CoMP) transmission. According to an embodiment, a method for a serving base station of CoMP transmission includes sending a message to a cooperating base station of the CoMP transmission to indicate desired Non-Zero-Power Channel Status Information Reference Signal (NZP CSI RS) resources and/or Zero-Power Channel Status Information Reference Signal (ZP CSI RS) resources. The method meets new needs and facilitates CoMP transmission.

Abstract: The present invention relates to a method and an apparatus for controlling a Channel State Information (CSI) report. According to an embodiment of the present invention, a method for controlling a CSI report of a User Equipment (UE) in a base station of a Long Term Evolution (LTE) mobile communication network is provided. The method includes a step of determining a CSI report set for a UE, where the CSI report set includes multiple CSI feedback modes, and each CSI feedback mode is defined to include a Non-Zero Power Reference Signal (NZP RS) resource part for channel measurement and an Interference Measurement Resource (IMR) part for interference measurement. In addition, the method further includes a step of sending to the UE Radio Resource Control (RRC) signaling indicating the CSI report set.

Abstract: The present invention relates to a method and an apparatus for controlling a rank information (RI) report. According to an embodiment of the present invention, a method for controlling an RI report of a User Equipment (UE) in a base station of a Long Term Evolution (LTE) mobile communications network is provided. The method includes the following steps: determining a Channel State Information (CSI) report set for a UE, where the CSI report set includes multiple CSI feedback modes (CSI processes); sending to the UE Radio Resource Control (RRC) signaling indicating the CSI report set; and sending to the UE signaling indicating a precoding codebook subset and/or rank restriction of each CSI feedback mode in the CSI report set. According to the above embodiment, rank selection and high rank transmission are supported for coordinated multi-point (CoMP) transmission in the LTE mobile communications network.

Abstract: A method and apparatus for generating a codebook and the associated data in a network device are provided in the invention. The method comprises the steps of generating a first row sub-matrix corresponding to a first group of antennas respectively for the respective ranks of the codebook to be generated; generating a second row sub-matrix corresponding to a second group of antennas respectively for the respective ranks based on an amount of the phase adjustment of the second group of antennas with respect to the first group of antennas; and generating a second codebook in accordance with the first row sub-matrix and the second row sub-matrix.