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Communication method

A communication method and communication terminal technology, applied in wireless communication, broadcast service distribution, power management, etc., can solve the problems of base station communication capacity reduction, power reduction, etc.

Active Publication Date: 2010-05-12
RES IN MOTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the power allocated to other terminals such as exclusive channels is reduced, and thus the communication capacity of the base station is reduced

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] ·System composition

[0025] figure 1 It is a system composition diagram of the multimedia communication system according to the first embodiment. The terminal 100 is a communication device used by the user to receive data from one or more base stations 101. Each base station 101 communicates with a plurality of terminals 100 in the cellular area, and executes data Sending and receiving. The base station control device 102 is connected with a plurality of base stations 101, and has the function of controlling each base station 101. The base station control device 102 is also connected with the SGSN103 (Service GPRS Support Node: GPRS service support node) that undertakes packet communication, to each base station 101 and SGSN103 The communication between them is relayed. SGSN 103 handles authentication, service participation, route selection, mobility management, service restriction, device context management, billing information, etc. related to each user. GGSN (GPRS...

Embodiment approach 2

[0065] Next, an example of controlling the setting of the dedicated channel (DPCH) according to the maximum number of selected combinations of the terminal 100 will be described. The basic operation is the same as that of Embodiment 1, so differences will be described.

[0066] Figure 10 is a flowchart for explaining the determination process of the base station control device 102, showing Figure 7 Details of step ST108.

[0067] First, the base station control device 102 reads out from the memory Figure 7 The number m of MBMS selection combinations in the terminal 100 received in step ST106 (step ST300). Base station control device 102 also according to Figure 7 The reception capability information received in the step ST102 is read out from the memory to receive the maximum number n of S-CCPCHs used for MBMS ("the maximum number of S-CCPCH radio links used by MBMS") (where n is the number of added S-CCPCHs The value of the maximum number of bars + 1). Next, the bas...

Embodiment approach 3

[0071] Next, the embodiment of judging whether to allow dedicated channel communication according to the UE Capabilities, the number of S-CCPCHs during the current selection period and the rate of the dedicated channel in the MBMS selection combination is described. The basic operation is the same as that of Embodiment 2, so the description difference.

[0072] Depending on the situation, the terminal 100 may not use all of the receiving units 413 even during the combination selection period. However, in this case, when the rate of the exclusive channel is high, the decoding process exceeds the capability of the decoder, so a certain limit is set on the rate of the exclusive channel.

[0073] Figure 11 in, with Figure 10 the same symbol as Figure 10 the same or equivalent treatment. Therefore, the processing before step ST303 is the same as Figure 10 are treated the same. In step ST303, when the base station control device 102 permits the dedicated channel (DPCH) com...

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Abstract

Said invented communication method sends data from base station to plurality of terminals by public channel, controlling the sending power according to the receiving state of at least terminal. Said terminal sends receiving ability information in selecting assembly, at least one base station of various base stations receiving the receiving ability information and reporting base station controller.When there is terminal connection request, base station controller refuses to distribute independent channel to connection request in judging it can not distribute independent channel according to the receiving ability information in selecting assembly.

Description

[0001] This application is a divisional application of the parent application with the title of "communication system, communication device, communication terminal and communication method", the filing date is November 25, 2005, and the application number is 200480004785.4. technical field [0002] The present invention relates to a communication system, a communication device, a communication terminal and a communication method suitable for a broadcast or multicast type communication service in mobile communication. Background technique [0003] In a conventional mobile phone system, a one-to-one relationship between a base station and a terminal is assumed, and a service in which a base station simultaneously transmits data to a plurality of terminals is not considered. Conventionally, there is a method of notifying terminals in a cell at the same time using a common channel called notification information, but this method is for notifying control information and not for pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W36/16H04W52/32H04W52/34H04W52/40
Inventor 庭野和人若林秀治杉泽耕太郎
Owner RES IN MOTION LTD