摘要:
A radio communication system and a method for assigning a short-lived Cell Radio Network Temporary Identifier, “CRNTI”, to a first user equipment performing random access to a radio network node are provided. The radio communication system registers the first user equipment as connected to the radio network node. A message for synchronizing the radio network node and the first user equipment with respect to the first time period is transferred. After the first time period has elapsed, the radio communication system maintains the first user equipment connected to the radio network node, and allows the short-lived CRNTI to be assigned to a second user equipment.
摘要:
A radio communication system and a method for assigning a short-lived Cell Radio Network Temporary Identifier (C-RNTI) to a first user equipment performing random access to a radio network node are provided. The radio communication system registers the first user equipment as connected to the radio network node. A message for synchronizing the radio network node and the first user equipment with respect to the first time period is transferred. After the first time period has elapsed, the radio communication system maintains the first user equipment connected to the radio network node, and allows the short-lived C-RNTI to be assigned to a second user equipment. Furthermore, a first user equipment and method for enabling assignment of a short-lived C-RNTI to the first user equipment performing random access and a radio network node and method for assigning a short-lived C-RNTI to a first user equipment performing random access are provided.
摘要:
Devices and methods are provided for adapting the allocating of random access resources to user equipments of a cell served by a base station. A method in a base station where each RA preamble group maps or corresponds to an uplink allocation size comprises receiving a RA preamble from a UE in a cell served by the base station, the preamble indicating a requested resource allocation size for uplink transmission of UE data. Radio resource usage in the cell is monitored and a mapping between groups of RA preambles and uplink allocation sizes configured for the cell is adapted based on the monitored usage of radio resources. UEs or MTC devices are thus provided with an efficient means to have their UL allocation needs met for transmission of user data in conjunction with the Random Access procedure.
摘要:
The present disclosure relates to User Equipments, UEs or Machine Type Communication, MTC (104, 202, 302, 304, 700) devices and base stations (102, 204, 306, 600) and methods therein for adapting the allocating of random access resources to user equipments of a cell served by a base station. A method in a base station (102, 204, 306, 600) where each RA preamble group maps or corresponds to an uplink allocation size, comprises receiving a RA preamble from a UE in a cell served by the base station, the preamble indicating a requested resource allocation size for uplink transmission of UE data. Radio resource usage (S-348, 402) in the cell is monitored and a mapping between groups of RA preambles and uplink allocation sizes (S-356, 412) configured for the cell is adapted based on the monitored usage of radio resources. UEs or MTC devices are thus provided with an efficient means to have their UL allocation needs for transmission of user data in conjunction with step 3 of the Random Access procedure met.
摘要:
A method in a communication device (120) for reducing power consumption in the communication device (120) is provided. The communication device (120) and a base station (110) are comprised in a cellular communications network (100). The communication device obtains information about an antenna beam (117) of the base station (110). The antenna beam (117) will be perceived by the communication device (120) in time periods. The information relates to when in time a time period starts and the duration of the time period. When being out of the time period, the communication device refrains from attempting to receive or transmit data using the antenna beam (117). During the refraining no power is consumed for attempting to receive or transmit data using the antenna beam (117).
摘要:
A method in a user equipment (110) and a user equipment (110) for setting a timeout value, indicative of a duration during which a value related to radio transmissions is to be reused by the user equipment, are provided. The user equipment obtains a timeout value, which is based on mobility information indicating mobility of the user equipment. Then, the user equipment sets the timeout value. Furthermore, a method in a radio network node (120) and a radio network node (120) for setting a timeout value, indicative of a duration during which a value related to radio transmissions is to be reused by the radio network node, are provided. The radio network node obtains a timeout value, which is based on mobility information indicating mobility of the user equipment. Then, the radio network node sets the timeout value for the user equipment.
摘要:
A method in a base station for selecting a set of transport format schemes for a cell is provided. The set of transport format schemes shall be used for a radio transmission from a communication device to the base station. The base station is serving the eel! comprising the communication device. The communication device is unsynchronized for transmission to the base station. The base station specifies (201) a plurality of sets of transport format schemes. Each set of transport format schemes is associated to a respective guard time, which guard time is a time margin required to compensate for the communication device being unsynchronized for transmission to the base station. After determining (203) a required guard time as the maximum timing advance value used in the cell the base station selects (204) one set of transport format schemes from the plurality of sets of transport format schemes to be available for the cell. The set is selected such that its associated guard time matches the determined required guard time in the cell.
摘要:
A method in a base station for selecting a set of transport format schemes for a cell is provided. The set of transport format schemes shall be used for a radio transmission from a communication device to the base station. The base station is serving the eel! comprising the communication device. The communication device is unsynchronized for transmission to the base station. The base station specifies (201) a plurality of sets of transport format schemes. Each set of transport format schemes is associated to a respective guard time, which guard time is a time margin required to compensate for the communication device being unsynchronized for transmission to the base station. After determining (203) a required guard time as the maximum timing advance value used in the cell the base station selects (204) one set of transport format schemes from the plurality of sets of transport format schemes to be available for the cell. The set is selected such that its associated guard time matches the determined required guard time in the cell.
摘要:
Methods of controlling peers of a relay ARQ protocol are described. It is proposed to provide a predetermined marking in the payload section of messages of the relay ARQ protocol, such that relay peers along the relay connections can extract information from the payload section.
摘要:
Methods of controlling peers of a relay ARQ protocol are described. It is proposed to provide a predetermined marking in the payload section of messages of the relay ARQ protocol, such that relay peers along the relay connections can extract information from the payload section.