Abstract: Disclosed are a method, device and system for maintaining the continuity of a group communication service, for solving the problem in the prior art that the service continuity requirement of group communication may not be satisfied due to the switching of network service from multicast transmission to unicast transmission in an MBSFN domain. The method comprises: when determining that group communication service needs to be switched from multicast transmission to unicast transmission, a GCSE-AS notifies a terminal served by the GCSE-AS that the GCSE-AS is going to switch the group communication service from multicast transmission to unicast transmission; and after receiving a first notification message transmitted by the terminal, the GCSE-AS transmits the group communication service over a unicast carrier established by the terminal for unicast transmission, and stops transmitting the communication service in multicast mode.

Abstract: According to the present disclosure, CSI and/or a plurality of ACKs related to a group of DL data transmissions may be buffered at the UE as a GACK until a DCI trigger is received from the eNB. Once the trigger is received, the UE may transmit the CSI and/or GACK to the eNB. In this way HARQ feedback and/or CSI may be reliably communicated while reducing payload. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus send, to a UE, data transmissions associated with a first plurality of downlink subframes. In an aspect, the apparatus increments a counter for each data transmission sent to the UE. In a further aspect, the apparatus transmits, to the UE, a first trigger for a first GACK when a counter is greater than or equal to a threshold.

Abstract: The present disclosure concerns radio communication. More particularly, the disclosure presents a contention based access channel signaling between a radio access network node, such as an evolved NodeB (eNB), and a User Equipment (UE). In one example embodiment, the UE receives 110 a data frame comprising multiple zones from an eNB. A zone of the multiple zones comprises an UE group identity as well as an indicator addressing a reserved contention-based access channel for use in another zone by those UEs having said UE group identity. Also, the UE group identity is retrieved 120, or otherwise read, from the zone. If, or when, the UE group identity matches that of the UE, the UE may utilize 130 the addressed reserved contention-based access channel.

Abstract: Embodiments provide a channel contention method and apparatus. The channel contention apparatus belongs to a basic service set (BSS). The BSS includes an access point (AP) and at least one first station (STA). Both the AP and the at least one first STA participate in channel contention. The apparatus is the AP or any first STA. The apparatus includes a sensing module configured to sense a channel. The apparatus also includes a contention module configured to contend for the channel. The AP centrally performs control and scheduling so that all of at least one network device in the BSS can transmit data by using the channel.

Abstract: A method for transmitting an 802.11ah packet is provided. A training field sequence is generated using control circuitry. A preamble for a packet is generated using the control circuitry. The preamble includes a training field symbol which includes the training field sequence. A portion of the training field sequence is within a plurality of guard tones of the training field symbol. The preamble is transmitted using transmit circuitry.

Abstract: The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. A signal transmission and reception method of a base station for a signal in a wireless access system supporting a FDR, according to one embodiment of the present invention, comprises the steps of: transmitting, to a terminal, an indicator which notifies of an application of terminal-specific time division duplex (TDD); transmitting, to the terminal, frame setting information according to the terminal-specific TDD; and transmitting and receiving a signal to and from the terminal on the basis of the frame setting information, wherein the frame setting information is capable of being set on the basis of a first constraint in which a first subframe is a downlink subframe and a special subframe always exists.

Abstract: A wireless communication device intends to request an RRC connection to initiate a voice call, initiate a data session or respond to paging. The wireless communication device considers the maximum response time for the connection setup indicated by a serving cell and compare to the maximum response (i.e. waiting) time for the connection setup indicated by a neighbour cell. A long maximum response time may indicate a cell with high load. If the maximum response time indicated by a neighbour cell is significantly lower, the wireless communication device may either reselect and request RRC connection from this neighbour cell instead or reduce the time to wait for a response from the serving cell and reselect to the neighbour cell if there is no response from the serving cell within the reduced time.

Abstract: A method for processing media traffic by a Media Processing Function (MPF) entity in a mobile communication system is provided. The method includes installing a media policy when an Internet Protocol Connectivity Access Network (IP-CAN) between a gateway with a Traffic Detection Function (TDF) and a media policy server is established, or an application is detected in the gateway entity with the TDF, and updating the media policy based on a network status after installing the media policy.

Abstract: Systems and methods for detecting the failure of a precision time source using an independent time source are disclosed. Additionally, detecting the failure of a GNSS based precision time source based on a calculated location of a GNSS receiver is disclosed. Moreover, the system may be further configured to distribute a time derived from the precision time source as a precision time reference to time dependent devices. In the event of a failure of the precision time source, the system may be configured to distribute a time derived from a second precision time source as the precision time signal during a holdover period.

Abstract: A base station device includes a processor. The processor is configured to acquire first information on a first communication load of the base station device. The processor is configured to determine, on basis of the first information, whether a first event occurs. The processor is configured to acquire, upon determining that the first event occurs, second information on second communication loads of other base station devices located within a predetermined range from the base station device. The processor is configured to determine an impact range and an impact time of the first event on basis of the first information and the second information. The processor is configured to instruct terminal devices within the impact range to change, during the impact time, a setting of discontinuous reception from a normal setting to a first setting for easier detection of an incoming call.

Abstract: An approach is provided for locating communities over an ad-hoc mesh network. Community identifiers are used to locate communities and community members over an ad-hoc mesh network. The community identifiers are also associated with keys to authenticate members of the community and to protect the privacy and anonymity of information exchanged between the members.

Abstract: This disclosure relates to radio link monitoring. More particularly, it relates to monitoring radio link failure between a user equipment (UE), which is configured for an extended (i.e. long) discontinuous reception (DRX) time period, and a radio network. A method performed by the UE may comprise retrieving 510 configuration data. Upon detection 520 of connectivity problems towards a radio cell, a parameter configuration of the retrieved configuration data may be applied 530 for monitoring the radio link failure between the UE and the radio network.

Abstract: Provided is reporting one or more long term CSI components to an eNode B, wherein at least one long term CSI component being reported with multiple values; and reporting a transmission scheme assumption indicator (TSAI) together with a set of short term CSI components to the eNode B, wherein the TSAI indicating the eNode B of a value of the multiple values of the at least one long term CSI component to be currently used and of the set of short term CSI components being conditioned on the value indicated by the TSAI, wherein the short term CSI components being reported more frequently.

Abstract: A method and device for sending a synchronization signal and a method and device for synchronization between base stations, include: determining, by a synchronization source base station according to a synchronization level of the synchronization source base station, a resource for sending an NLRS for clock synchronization between base stations, and according to the determined resource. In this way, one NLRS for clock synchronization between base stations is configured on each synchronization source base station, and the NLRS is sent on a resource determined according to a synchronization level, so that a synchronization base station that acquires the NLRS can determine the synchronization level of the synchronization source base station according to a resource for sending the NLRS.

Abstract: A technique for receiving and transmitting downlink reference signals is disclosed. When transmitting downlink data demodulation reference signals (DMRS) (or reference signals for downlink data demodulation) by using two or more layers, the DMRS of each layer may be multiplexed by using a code division multiplexing method and then transmitted. The DMRS for each of the two or more layers may be used for one user equipment or for two or more user equipments. And, downlink control signals for transmitting and receiving such DMRS may be configured to have the same format regardless of a single-user mode (or SU-MIMO mode) or a multi-user mode (or MU-MIMO mode), thereby being used.

Abstract: A method of handling SIP session initiation requests in an IP Multimedia Subsystem, IMS, network. The method is performed at an application server, AS, within the network. The AS receives a session initiation request containing a destination address, where that destination address is currently associated with a plurality of registered User Equipments, UEs. The AS then determines whether or not a UE associated with the destination address, is already involved in a session. If so, the AS causes the session initiation request to be forwarded only to that UE. If not, the AS causes the session initiation request to be forwarded to all UEs registered in respect of the address.

Abstract: The invention provides a communication system and components thereof for controlling coordinated transmissions using a plurality of carriers operated by a plurality of transmission points. A transmission point configures a number of signal quality and interference measurements for a mobile telephone communicating over the plurality of carriers, each measurement being associated with multiple carriers and multiple measurement configurations. The mobile telephone performs the configured measurements with respect to each of the multiple carriers and reports the results of the relevant measurements to the transmission point.

Abstract: A technique including: making at a communication device a provisional decision about one or more transmission parameters for a transmission from the communication device to an access network or another communication device via radio resources managed by an access network; communicating the provisional decision to the network or the another communication device; and receiving from the access network or the another communication device an indication of a final decision about the transmission parameters for the transmission from the communication device to the access network or another communication device.

Abstract: A packet processing block. The block has an input for receiving data in a packet header vector, the vector comprising data representing information for a packet and a match unit for performing match operations between packet header vector data and at least one match table. Various embodiments provide advantages in connection with storing certain action or next table bits outside of the match table, or constants in the table, or by forming the match table from multiple unit match table memories.

Abstract: A method to improve channel access opportunity for wide bandwidth transmission in wireless local area networks is proposed. The method allows different clear channel assessment (CCA) thresholds for different transmission channel bandwidth. During a primary channel CCA process, a low CCA threshold level is applied for an intended narrow transmission channel bandwidth, while a high CCA threshold level is applied for an indented wide transmission channel bandwidth. In addition to the “all bandwidth transmission branch” that is based on the low CCA level, the “wide bandwidth transmission branch” is based on the high CCA level, which increases the opportunity for channel access by raising the CCA levels based on intended transmission channel bandwidths. As a result, the likelihood of wide channel transmission is increased.