摘要:
According to some embodiments of inventive concepts, a method of operating a first node in a radio access network may be provided. The method may include communicating an authorization for a Proximity Services (ProSe) capability of a wireless device with a second node of the radio access network, wherein the authorization identifies at least one of a plurality of ProSe communication capabilities. The authorization for the ProSe capability of the wireless device may be communicated as an IE of an Initial Context Setup Request message, a UE Context Modification Request message, an S1 Handover Request message, and/or an X2 Handover Request message.
摘要:
A first wireless communication device (14-1) belongs to a first (12-1) of multiple groups (12) of wireless communication devices (14). Devices (14) in any given group (12) are synchronized to the same timing reference and devices (14) in different groups (12) are not synchronized to the same timing reference. The first device (14-1) receives a message that indicates, for each of one or more of the groups (12), a range of possible values for misalignment between the timing reference of that group (12) and a common timing reference. The range accounts for uncertainty in that misalignment. The first device (14-1) determines, based on the one or more ranges, intervals of times during which direct control signaling is expected to be received at the first device (14-1) from one or more devices (14) in one or more other groups (12-2, 12-3). The first device (14-1) then adjusts intervals of times during which it is configured to operate in an awake state to narrowly encompass the intervals of times during which the direct control signaling is expected to be received.
摘要:
The present disclosure relates to a base station in a cellular communication network and methods of operation thereof. In one embodiment, a base station determines that the base station is transitioning to an unavailable state. The base station then notifies one or more radio network nodes with which the base station conducts base-station-to-node communication that the base station is unavailable. Thereafter, in one embodiment, the one or more radio network nodes cease communication attempts with the base station. In this manner, the radio network nodes can avoid spending additional resources on attempts to re-establish communication connections to base stations that tend to be offline more often (e.g., low-power base stations (LP-BSs)).
摘要:
The present disclosure relates to a base-station-to-base-station (BS-BS) gateway in a Long Term Evolution (LTE) cellular communication network and methods of operation thereof. In one embodiment, the BS-BS gateway receives information from a first base station which includes a hostname and a network address of the first base station. The BS-BS gateway then stores a mapping between the hostname and the network address. Thereafter, in one embodiment, the BS-BS gateway enables a second base station to address messages to the first base station using the hostname of the first base station. In this manner, changes in the network address of the first base station will not affect the ability of the second base station to address messages to the first base station. In some embodiments, the first base station is a low-power base station (LP-BS) and the second base station is a high-power base station (HP-BS).
摘要:
Cooperating nodes, and methods therein, for mobility procedures in a wireless communication system supporting UE groups. One of the cooperating nodes is a base station being associated with a UE group comprising UEs having correlated mobility related parameters. The method in the base station comprises receiving, from a first UE in the UE group, a mobility related parameter associated with the first UE. The method further comprises determining whether to initiate a mobility related procedure for a second UE in the UE group based on the received mobility related parameter; and further comprises initiating the mobility related procedure for the second UE when it is determined that the mobility related procedure is to be performed. Thereby, prediction and decisions related to mobility events, e.g. handover events, for the second UE or for the whole group may be performed e.g. before or without receiving any mobility information related to the second UE, thereby enabling early prediction and better preparation, which can lead to more robust mobility procedures.
摘要:
A first wireless communication device (14-1) belongs to a first (12-1) of multiple groups (12) of wireless communication devices (14). Devices (14) in any given group (12) are synchronized to the same timing reference and devices (14) in different groups (12) are not synchronized to the same timing reference. The first device (14-1) receives a message that indicates, for each of one or more of the groups (12), a range of possible values for misalignment between the timing reference of that group (12) and a common timing reference. The range accounts for uncertainty in that misalignment. The first device (14-1) determines, based on the one or more ranges, intervals of times during which direct control signaling is expected to be received at the first device (14-1) from one or more devices (14) in one or more other groups (12-2, 12-3). The first device (14-1) then adjusts intervals of times during which it is configured to operate in an awake state to narrowly encompass the intervals of times during which the direct control signaling is expected to be received.
摘要:
The present disclosure concerns wireless communication. More particularly, a method and an apparatus (e.g. a SCTP concentrator) for setting up transport layer connections (e.g. SCTP associations) between a eNB and a (H)eNB are disclosed.
摘要:
The following methods are disclosed: A method of initiating handover of a User Equipment, UE, in a cellular network comprising a plurality of enhanced Node Bs, eNBs, the method comprising: receiving at a source eNB, from the UE, a handover measurement report containing a Physical Cell Identifier, PCI, of a cell of a neighboring eNB; at the source eNB, performing a lookup of a Neighbor Relation Relation Table to identify a global cell identity and access mode associated with the PCI; and using the identified global cell identity and the access mode to determine an eNB identity for said neighboring eNB. A method of initiating handover of a User Equipment, UE, in a cellular net-work comprising a plurality of enhanced Node Bs, eNBs, the method comprising: receiving at a source eNB, from the UE, a handover measurement report containing a Physical Cell Identifier, PCI, of a cell of a neighboring eNB; at the source eNB, performing a lookup of a Neighbor Relation Table to identify a plurality of global cell identities associated with the PCI, the neighbor relation table also containing, for each such global cell identity, PCIs of neighboring cells; selecting the correct global cell identity from said plurality of global cell identities by comparing the PCIs of further neighboring eNBs cells reported by the UE with the neighboring PCIs of each of said plurality of global cell identities; and deriving from the selected correct global cell identity, an eNB identity of said neighboring eNB. A method of initiating handover of a subscriber from a cell of a source enhanced Node B, eNB, to a cell of a target enhanced Node B, eNB, via the X2 interface, the method comprising, at the source eNB, maintaining a Neighbor Relation Table (NRT) identifying the connectivity of the source eNB to cells of its neighboring eNBs, this information including for each eNB cell an indication that the eNB cell is an open, closed or hybrid eNB cell and, for each closed and hybrid eNB cell, a Closed Subscriber Group, CSG, identity; determining that a handover of the UE is required and using
摘要:
Embodiments herein relate to a method in a relay node for acquiring information about a type of a radio network connection between a donor radio base station and a radio base station. The relay node and the donor radio base station are comprised in a radio communications network and the donor radio base station is serving the relay node. The relay node receives a message from the donor radio base station, which message is indicating a type of radio network application protocol, which type is related to a type of the radio network connection between the donor radio base station and the radio base station. The relay node determines the type of the radio network connection based on the type of radio network application protocol indicated in the message. The relay node also stores the type of radio network connection in relation to the radio base station for selecting the type of radio network connection when later communicating with the radio base station.
摘要:
According to one of the aspects of the proposed technology, there is provided a method for enabling continuation of ongoing positioning measurements for a User Equipment, UE, at handover from a source base station to a separate target base station. The method comprises the steps of obtaining (11) a measurement context associated with the ongoing positioning measurements to enable continued positioning measurements in a target cell of the target base station after the handover has been completed, and participating (12) in continued positioning measurements in the target cell after the handover in response to the measurement context.