摘要:
A method for selecting a cell by a user equipment (UE) to receive a Multimedia Broadcast/Multicast Service (MBMS) service in a mobile communication system which supports the MBMS service with different frequency allocations (FAs) in the same area. In the method, a radio network controller (RNC) transmits information on an MBMS cell to the UE, and the MBMS cell information includes an MBMS offset for guaranteeing priority for cell reselection to the MBMS cell. The UE performs cell reselection using the MBMS cell information and receives the MBMS service from the reselected cell.
摘要:
A method for enabling a user equipment (UE) to recover from a multimedia broadcast/multicast service (MBMS) data error in a mobile communication system. The mobile communication system includes a radio network controller (RNC) and at least one cell for transmitting MBMS data to at least one UE according to a control operation of the RNC. The RNC transmits first control information to UEs located in each cell. Each of the UEs receives the first control information and the MBMS data. When an error in the received MBMS data is detected, the RNC is notified that an MBMS data reception error has occurred. Response information associated with the MBMS data reception error is transmitted from the UE to the RNC. The UE determines whether control information contained in the response information matches the first control information. The MBMS data reception error is recovered from, according to a result of the determination.
摘要:
A method and apparatus for transmitting and receiving MBMS control information in an MBMS mobile communication system are provided. An RNC transmits MBMS control information for an MBMS service on an MCCH mapped to one of a plurality of CCPCHs available in a cell of the mobile communication system, and transmits a paging message on a logical channel mapped to each of the CCPCHs. Here, the paging message requests reception of the MBMS control information. A UE monitors one of the plurality of the CCPCHs, receives the paging message on the monitored CCPCH, switches to the CCPCH having the MCCH, and receives the MBMS control information on the switched to CCPCH. Therefore, resource consumption is minimized in transmitting MBMS control information in a cell and the reception reliability of the MBMS control information in the UE is increased.
摘要:
Disclosed is a mobile communication system for providing a number of User Equipment (UEs) positioned in a plurality of cells with Multimedia Broadcast/Multicast Service (MBMS) using CDMA technology. A Radio Network Controller (RNC) transmits a MBMS availability message to each of the plurality of cells under management regarding at least one MBMS which is available in a corresponding cell in order to support the mobility of the UE which receives the MBMS. The UE decides whether it can receive a desired MBMS in the current cell, after receiving the MBMS availability message, and requests the desired MBMS or reselects another cell. The continuity of MBMS reception is improved while UEs using the MBMS are moving and the overhead of RRC connection setup for unnecessary MBMS request is reduced.
摘要:
A method of transmitting information about a buffer size includes transmitting a bit string comprising a first bit string and a second bit string when the buffer size is greater than or equal to a first value, the first bit string indicating a quotient which is acquired by dividing the buffer size by a second value, and the second bit string indicating a value corresponding to a remainder which is acquired by dividing the buffer size by the second value.
摘要:
A regional access control method is provided in a Mobility Management Entity (MME) for network access for a User Equipment (UE) that performs Machine-to-Machine (M2M) communication. An access request message and location information of the UE are received from a base station. The access request message is transmitted to the MME in response to reception of the access request message at the base station from the UE. A location of the UE that is determined based on the location information of the UE, is registered in a Home Subscriber Server (HSS). An allowed list of the UE is obtained from the HSS. It is determined whether the location information of the UE is registered in the allowed list.
摘要:
A method for minimizing overhead occurring caused by control information for encryption performed to protect MBMS data for an MBMS service in a mobile communication system. This method is implemented by distinguishing a case in which control information used for encryption is updated from another case in which the control information used for encryption is not updated, and transmitting different control information according to the distinguishment result. That is, when the control information used for encryption is not updated, only minimized control information is transmitted, and when the control information for encryption is updated, the entire updated control information is transmitted. Accordingly, the amount of control information transmitted along with MBMS data is minimized, contributing to an increase in the amount of MBMS data transmitted per unit time.
摘要:
A method and apparatus for enabling partial combining on a Multimedia Broadcast/Multicast Service (MBMS) service are provided where a radio network controller (RNC) specifically informs a user equipment (UE) whether an MBMS service signal of the current cell is combinable with the same MBMS service signals received from different cells for each individual service or timing, through an MCCH or an MSCH, which is a type of a logical channel for an MBMS service, in a Uu interface. The UE combines the MBMS service signals transmitted from the different cells, thereby obtaining a gain in terms of utilization of transmission power and radio resources.
摘要:
Disclosed is a mobile communication system for providing a number of User Equipment (UEs) positioned in a plurality of cells with Multimedia Broadcast/Multicast Service (MBMS) using CDMA technology. A Radio Network Controller (RNC) transmits a MBMS availability message to each of the plurality of cells under management regarding at least one MBMS which is available in a corresponding cell in order to support the mobility of the UE which receives the MBMS. The UE decides whether it can receive a desired MBMS in the current cell, after receiving the MBMS availability message, and requests the desired MBMS or reselects another cell. The continuity of MBMS reception is improved while UEs using the MBMS are moving and the overhead of RRC connection setup for unnecessary MBMS request is reduced.
摘要:
A regional access control method is provided in a Mobility Management Entity (MME) for network access for a User Equipment (UE) that performs Machine-to-Machine (M2M) communication. An access request message and location information of the UE are received from a base station. The access request message is transmitted to the MME in response to reception of the access request message at the base station from the UE. A location of the UE that is determined based on the location information of the UE, is registered in a Home Subscriber Server (HSS). An allowed list of the UE is obtained from the HSS. It is determined whether the location information of the UE is registered in the allowed list.