WO2005104402A1 - 移動体通信端末及び無線通信システム - Google Patents
移動体通信端末及び無線通信システム Download PDFInfo
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- WO2005104402A1 WO2005104402A1 PCT/JP2004/004502 JP2004004502W WO2005104402A1 WO 2005104402 A1 WO2005104402 A1 WO 2005104402A1 JP 2004004502 W JP2004004502 W JP 2004004502W WO 2005104402 A1 WO2005104402 A1 WO 2005104402A1
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- base station
- signal
- mobile communication
- communication terminal
- base stations
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/16—Deriving transmission power values from another channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/021—Terminal devices adapted for Wireless Local Loop operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/322—Power control of broadcast channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/327—Power control of multicast channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
Definitions
- the present invention improves the reception quality when receiving multimedia data transmitted from a base station by using a CDMA (Code Division Multiple Access) codec system.
- CDMA Code Division Multiple Access
- multimedia services have been expected as mobile communication services.
- multimedia data such as sports broadcasts, weather forecasts and radios. I'm eager.
- the first common channel (P—C CP CH) used when the base station notifies the broadcast information to a plurality of mobile communication terminals P-C CP CH: P-n control Phys Physical).
- P-C CP CH P-n control Phys Physical
- C h ann el The second common channel (S—CCPCH) is used by the base station to deliver signaling and multimedia data to multiple mobile communication terminals.
- S—CCPCH A technology has been proposed in which a base station distributes multimedia data to a plurality of mobile communication terminals using an S—C CP CH (for example, Patent Document 1, Non-Patent Document 1). Reference 1).
- the base station distributes multimedia data using the S-CCPCH, it is possible to provide multimedia data to multiple mobile communication terminals at the same time. Even if the terminal is located in the area under the jurisdiction of the base station, for example, if it is located near the outer periphery of the area under the jurisdiction, the radio wave transmitted from the base station is weakened and the reception quality is degraded May be.
- the base station controls the transmission power so that the received power of the mobile communication terminal with the lowest received power exceeds the reference power among the mobile communication terminals that exist in its own area. Has functions.
- the mobile communication terminal when receiving the same multimedia data from multiple base stations, the mobile communication terminal has a function to improve the reception quality by combining the multiple multimedia data at the maximum ratio. Have. However, because the propagation path of multimedia data from multiple base stations to mobile communication terminals is different, the reception time of multimedia data transmitted from multiple base stations at mobile communication terminals is different. If the reception time difference exceeds a predetermined time, maximum ratio combining of a plurality of multimedia data cannot be performed.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-188888
- Non-Patent Document 1 3GPP standardized document R 1— 0 3 1 1 0 3 S elective Combining for MBMS Since the conventional wireless communication system is configured as described above, the received power of the mobile communication terminal having the smallest received power among the mobile communication terminals existing in the area under the control of the base station is the reference power. If the transmission power is controlled to exceed the above, it is possible to ensure the reception quality of the mobile communication terminal. However, if the base station increases the transmission power allocated to the S—CCPCH, the transmission power allocated to other channels becomes relatively lower, and the reception quality of information transmitted using other channels is reduced. There was a problem that it could deteriorate.
- the mobile communication terminal performs maximum ratio combining of the same multimedia data transmitted from a plurality of base stations, the reception quality can be improved without controlling the transmission power by the base station.
- the propagation paths of multimedia data from multiple base stations to mobile communication terminals are different, the reception times of multimedia data transmitted from multiple base stations at mobile communication terminals are different. If the difference between the reception times exceeds a predetermined time, the maximum ratio combining of multiple multimedia data cannot be performed.
- the present invention has been made to solve the above problems, and provides a mobile communication terminal and a radio communication system capable of improving the reception quality of multimedia data without a base station controlling transmission power.
- the purpose is to: Disclosure of the invention
- a mobile communication terminal distributes a multipath signal related to a radio signal transmitted from a plurality of base stations using a common channel to each base station of a transmission source, and distributes the multipath signal to the same base station.
- a maximum ratio combining unit that combines the plurality of multipath signals with a maximum ratio, and a combined ratio output from the maximum ratio combining unit.
- Decoding means for decoding the synthesized signal is provided, and a synthesized signal having a good decoding result is selected from the synthesized signals decoded by the decoding means.
- FIG. 1 is a configuration diagram showing a wireless communication system according to Embodiment 1 of the present invention.
- FIG. 2 is a configuration diagram showing a mobile communication terminal according to Embodiment 1 of the present invention.
- FIG. 3 is a configuration diagram showing a base station according to Embodiment 1 of the present invention.
- FIG. 4 is a configuration diagram showing a base control apparatus according to Embodiment 1 of the present invention.
- FIG. 5 is an explanatory diagram showing a channel configuration between a mobile communication terminal and a base station.
- FIG. 6 is an explanatory diagram showing base stations to be monitored.
- FIG. 7 is a flowchart showing the processing contents of the mobile communication terminal according to Embodiment 1 of the present invention.
- FIG. 8 is a flowchart showing processing contents of the mobile communication terminal according to the first embodiment of the present invention.
- FIG. 9 is a flowchart showing the processing contents of the mobile communication terminal according to Embodiment 2 of the present invention.
- FIG. 10 is a flowchart showing processing contents of a mobile communication terminal according to Embodiment 3 of the present invention.
- FIG. 11 shows processing contents of a mobile communication terminal according to Embodiment 3 of the present invention. It is a flowchart which shows.
- FIG. 12 is a sequence diagram showing signaling of active set update in a wireless communication system.
- FIG. 13 is a sequence diagram showing parameter notification at the time of updating the active set in the wireless communication system.
- FIG. 14 is a flowchart showing the process of updating the active set in the mobile communication terminal.
- FIG. 15 is a sequence diagram showing notification of the power ratio between CPICH and S—CPCCH.
- FIG. 16 is a flowchart showing a process of updating the active set in the mobile communication terminal.
- FIG. 1 is a configuration diagram showing a wireless communication system according to Embodiment 1 of the present invention.
- a service center 1 stores contents for distribution and distributes the contents.
- GG SN (Gateway GPR SS upgrade Node) 2 becomes a gate to the external network that is in charge of the gateway to the outside (for example, the Internet network), and passes through the packet. Secure a path to make it work.
- charge information accumulation, mobility management, QoS (Quality of Service) negotiation, and policy control to adjust traffic are implemented.
- SGSN Seer V ice GPR SS up port Node
- 3 is in charge of packet communication It handles authentication, service subscription, routing, mobility management, service restrictions, context storage, and billing information for individual users.
- the base station control device 4 is connected to the SGSN 3 and has a function of relaying between the core network and the radio line of the base station 5 .
- the base station control device 4 mainly manages radio resources and establishes and releases channels to and from the base station 5. Give instructions. Under the direction of the base station controller 4, the base station 5 transmits radio signals (eg, multimedia data, pilot signals) using the S—CCPCH (common channel) within the control area.
- radio signals eg, multimedia data, pilot signals
- S—CCPCH common channel
- the mobile communication terminal 6 When the mobile communication terminal 6 receives a multipath signal related to a radio signal transmitted using the S-CCPCH from the plurality of base stations 5, the mobile communication terminal 6 distributes the multipath signal to each of the source base stations 5, A function to select a combined signal with a good decoding result from among the combined signals after decoding is performed by decoding the multi-path signals related to the same base station 5 with the maximum ratio combining and decoding. I have it.
- FIG. 2 is a configuration diagram showing a mobile communication terminal according to Embodiment 1 of the present invention.
- a low-noise amplifier 12 transmits a multipath signal that is a weak radio signal received from an antenna 11.
- the frequency converter 13 converts the frequency of the multipath signal amplified by the low-noise amplifier 12 and outputs an RF (RadioFreq ency) signal.
- the A / D converter 14 converts the RF signal, which is an analog signal output from the frequency converter 13, into a digital signal.
- the antenna 11, the low noise amplifier 12, the frequency converter 13, and the A / D converter 14 constitute a signal receiving means.
- the search unit 15 Upon receiving the digital RF signal from the A / D converter 14, the search unit 15 performs a cell search process to transmit the multipath signal. Detects the originating base station 5. The code generator 16 generates a scrambling code corresponding to the base station 5 detected by the search unit 15.
- the finger assignment control unit 17 determines whether the base station 5 to be monitored (hereinafter referred to as an active set) among the plurality of base stations 5 is a base station A or B.
- the RF signal related to the first multipath signal transmitted from the station A (hereinafter, referred to as 11 to 8 ⁇ 1) is transmitted to the finger section 18a and the RF signal related to the second multipath signal (hereinafter, referred to as RF signal) A- 2) is assigned to the finger section 18 b, and the RF signal (hereinafter, referred to as RF signal B- 1) related to the first multipath signal transmitted from the base station B is assigned to the finger section 1 b.
- the RAKE combiner 18 is controlled so that the RF signal (hereinafter, referred to as RF signal B-2) related to the second multipath signal is assigned to the finger part 18d.
- the cell combiner 18 e of the RAKE combiner 18 has the maximum ratio between the RF signal A-1 assigned to the finger part 18a and the RF signal A-2 assigned to the finger part 18b.
- the signals are combined, and the combined signal is stored in the cell input memory 19a.
- the cell combining section 18f combines the RF signal B-1 assigned to the finger section 18c with the RF signal B-2 assigned to the finger section 18d at a maximum ratio and combines the combined signal. Stored in cell input memory 19b.
- the search unit 15, the code generator 16, the finger assignment control unit 17, the RAKE synthesizing unit 18, and the cell input memories 19a, b constitute maximum ratio synthesizing means.
- the decoding unit 20 decodes the combined signal stored in the cell input memory 19a, stores the decoded combined signal in the cell output memory 21a, and stores it in the cell input memory 19b.
- the decoded synthesized signal is decoded, and the decoded synthesized signal is stored in the cell output memory 21b.
- Decoding is performed from the decoding unit 20 and the cell output memories 21a and 21b. Means are configured.
- the selecting unit 22 selects a combined signal having a good decoding result from the decoded combined signals stored in the cell output memories 21a and 21b and outputs the selected combined signal to the downlink common channel receiving unit 23.
- the selection unit 23 constitutes selection means.
- the downlink common channel receiving unit 23 outputs the combined signal to the protocol processing unit 26. If so, the composite signal is output to the application processing unit 27.
- the broadcast information receiving unit 24 does not perform the process of selecting the composite signal. Is received and output to the protocol processing unit 26.
- the downlink dedicated channel receiving section 25 transmits the base station 5 using the downlink dedicated channel even if the decoded composite signal stored in the cell output memory 21 a is application data or control information. If the combined signal is received, the selecting unit 22 does not perform the process of selecting the combined signal, so that the combined signal is received. If the combined signal is application data, the combined signal is sent to the application processing unit 27. If the combined signal is control information, the combined signal is output to the protocol processing unit 26.
- the protocol processing unit 26 sets and releases the channel according to the combined signal (control information and broadcast information) output from the downlink common channel receiving unit 23, the broadcast information receiving unit 24 or the downlink dedicated channel receiving unit 25. Perform processing related to communication control such as handover.
- the application processing unit 27 converts audio codecs to image codes according to the combined signal (application data) output from the downlink common channel reception unit 23 or the downlink individual channel reception unit 25.
- the man-machine interface such as key input and screen display will be processed.
- the uplink common channel transmission section 28 When the control information is output from the protocol processing section 26, the uplink common channel transmission section 28 performs common channel processing such as channel coding / transmission timing. Upon receiving the telephone number and the like input from the application processing unit 27, the uplink individual channel transmission unit 29 performs individual channel processing such as channel coding and transmission timing.
- the code generator 30 generates a spreading code, and the modulation section 31 performs spread modulation on the signal output from the uplink common channel transmitting section 28 or the uplink dedicated channel transmitting section 29 using the spreading code.
- the D / A converter 32 converts the modulated signal, which is a digital signal, output from the modulator 31 into an analog signal.
- the frequency converter 33 converts the frequency of the modulated signal that has been D / A converted by the D / A converter 32, and outputs an RF signal.
- the power amplifier 34 amplifies the power of the RF signal and outputs the amplified signal to the antenna 11.
- FIG. 3 is a block diagram showing a base station according to Embodiment 1 of the present invention.
- broadcast information transmitting section 41 receives broadcast information from base station control device 4, it transmits the broadcast information to P- Carry out the coding process to put on CCPCH.
- the downlink dedicated channel transmitter 4 2 receives data and control information to be transmitted from the base station controller 4 using a dedicated channel (DP CH: Dedicated Physical Channel 1), the downlink dedicated channel transmitter 4 2 transmits the data and control information to the DPCH.
- DP CH Dedicated Physical Channel 1
- the downlink common channel transmitting unit 43 transmits the control information and the multimedia data to the S—C Perform the coding process to put on CPCH.
- the downstream code generator 44 generates a downstream channelization code / scrambling code.
- the modulation section 45 uses the code generated from the downlink code generator 44 to transmit a signal output from the broadcast information transmission section 41, the downlink individual channel transmission section 42, or the downlink common channel transmission section 43. Is performed.
- the D / A converter 46 converts the modulated signal, which is a digital signal output from the modulator 45, into an analog signal.
- the frequency converter 47 converts the frequency of the modulated signal that has been D / A converted by the D / A converter 46 and outputs an RF signal.
- the power amplifier 48 amplifies the power of the RF signal and outputs the amplified signal to the antenna 49.
- the low noise amplifier 50 amplifies the radio signal.
- the frequency converter 51 converts the frequency of the radio signal amplified by the low noise amplifier 50 and outputs an RF signal.
- the AZD converter 52 converts an RF signal, which is an analog signal output from the frequency converter 51, into a digital signal.
- the ascending code generator 53 generates an ascending channelization code clamp ring code.
- the demodulation unit 54 demodulates the RF signal output from the A / D conversion unit 52 by using the scrambling code generated from the upstream code generator 53, and generates the upstream code generator 53 The demodulated RF signal is separated for each channel using the channelization code generated from.
- the uplink dedicated channel receiving unit 55 decodes each dedicated channel and transmits the decoded channel to the base station controller 4.
- the uplink common channel receiving section 56 channel-decodes the common channel (RACH: Random Access Channels) and transmits it to the base station controller 4.
- FIG. 4 is a block diagram showing a base control apparatus according to Embodiment 1 of the present invention.
- the core network transmission / reception processing unit 61 includes a core network such as a RAN AP adio Access Ne rk Aplication Protocol (RNAP) and the like; RN SAP (Radio Net wo rk S ub syst em Ap plication) Perform communication protocol processing to other base controllers such as P art).
- RN SAP Radio Net wo rk S ub syst em Ap plication
- the Q0S parameter overnight mapping section 62 obtains a wireless channel parameter that satisfies the request based on the QoS instruction from the core network.
- the radio resource control unit 63 performs processing related to radio resources, and also controls the mobile communication terminal 6 and reports parameters overnight by RRC signaling.
- the wireless link control unit 64 performs buffering and retransmission control on the wireless link.
- the base station transmission / reception processing unit 65 performs communication protocol processing for a base station (Node-B) such as NBAP (NodeB ApplicationtPart).
- Node-B base station
- NBAP NodeB ApplicationtPart
- the function allocation in the base station controller 4 is a logical function, and is not always clearly separated in actual hardware / software implementation.
- FIG. 5 is an explanatory diagram showing a channel configuration between the mobile communication terminal 6 and the base station 5, and the example of FIG. 5 shows a channel configuration when the W-CDMA system is used.
- the W-CDMA system is used.
- a downlink physical channel from the base station 5 to the mobile communication terminal 6 will be described.
- a CP I CH (Common Pilot Channel) used to broadcast timing standards to all mobile communication terminals 6 existing in the area under the jurisdiction of the base station 5, and other Useful when notifying broadcast information.
- the P-CCPCH is used as a broadcast information channel BCH (Broadcast channel n e 1).
- S-C CP CH Synchronization Control Physical Channel
- PICH PaingIndicatatorchannell
- RACH and om Access Channel
- a DP set individually for communication with a specific mobile communication terminal 6 as set for both uplink and downlink channels
- CH Dedicated Physical Channel
- DPCH is set to that of uplink and downlink, and is used for communication of voice and data and signaling of upper layers.
- the DPCH shall be divided into two parts: DPDCH (Dedicated Physical Data Channel Chain) for transmitting data and DPCCH (Dedicated Physical C ontorol Channel 1) for transmitting control bits. There is also.
- DPCH is used for each terminal individually and is called an individual channel, and other channels are commonly used by a plurality of terminals and are called a common channel.
- the GGSN 2 takes out the multimedia contents of the content stored in the service center 1 and sends the multimedia contents to the SGSN 3.
- the SGSN 3 When the SGSN 3 receives the multimedia data from the GG SN 2, the SGSN 3 searches for one or more mobile communication terminals 6 that use the content distribution service and searches for the base station that accommodates the mobile communication terminals 6. The multimedia data of the content is transferred to the base station controller 4 connected to the station 5.
- the base station control device 4 controls the base station 5 so that the multimedia data is distributed from the base station 5 using the S—CPCCH.
- the mobile communication terminal 6 receives multimedia data distributed from any one of the plurality of base stations 5 using the S—CPCCH channel.
- the base station 5 may distribute the multimedia data, for example, if the mobile communication terminal 6 exists near the outer periphery of the area under the jurisdiction, the base station The radio wave transmitted from 5 may be weak and the reception quality may be degraded.
- the base station controller 4 is connected to the base station A and the base station B, and the mobile communication terminal 6 exists near the outer periphery of the area under the jurisdiction of the base station A. Assume o
- the DPCH which is an individual channel, is set between the base station A and the base station B.
- the mobile communication terminal 6 receives the data transmitted from the base stations A and B using the DPCH and sets the maximum ratio of both data. By combining, it is possible to improve the reception quality in the night.
- S-CCPCH which is a common channel, is set only between base station A and base station B, so that maximum ratio combining between data transmitted from base station A and base station B is performed. And the reception quality of the data tends to deteriorate.
- the base station 5 may increase the power allocated to the S—CCPCH and transmit the signal. However, as described above, the base station 5 allocates the power allocated to the S—CCPCH. If is increased, the transmission power allocated to other channels becomes relatively low, so that the reception quality of information transmitted using other channels may be degraded.
- the mobile communication terminal 6 is configured as shown in FIG. 2 in order to improve the reception quality of the S-CCPCH without increasing the power allocated to the S-CCPCH by the base station 5. ing.
- FIGS. 7 and 8 are flowcharts showing processing contents of the mobile communication terminal according to the first embodiment of the present invention.
- the mobile communication terminal 6 may be able to receive a radio signal transmitted using S—CCPCH from three or more base stations 5, but is limited to hardware on the receiving side of the mobile communication terminal 6. Therefore, it is assumed that not all the base stations 5 are to be monitored, and only the base station 5 which is expected to some extent (the base station 5 which is likely to have high reception quality) is to be monitored.
- base stations A and B are monitored, and base stations A and B are monitored.
- the wireless signal transmitted from is received.
- the radio signals transmitted from the base stations A and B each move multiple times as multipath signals. Received by the mobile communication terminal 6.
- the plurality of base stations 5 transmit a pilot signal instead of transmitting multimedia data immediately as a radio signal. It may be possible to transmit multimedia data overnight.
- the low noise amplifier 12 of the mobile communication terminal 6 amplifies the multipath signal.
- the frequency converter 13 converts the frequency of the multipath signal and outputs an RF signal to the A / D converter 14.
- the A / D converter 14 Upon receiving the analog RF signal from the frequency converter 13, the A / D converter 14 converts the RF signal from analog to digital, and converts the RF signal as the digital signal into the RAKE combiner 18. And output to the search section 15 o
- search section 15 When receiving the RF signal of the digital signal from A / D conversion section 14, search section 15 performs cell search processing to detect base station 5 as the transmission source of the multipath signal. That is, it is confirmed whether the multipath signal received by antenna 1 is transmitted from base station A or base station B. '
- the search unit 15 sets the S-CCPCH code and timing since the multipath signal changes under the influence of fading as the mobile communication terminal 6 moves. To perform a S—CCPCH search. Then, the delay profile of the corresponding S—C CP CH (S—CCP CH for the base station A, S—CCP CH for the base station B) and the like are calculated (Step ST 2).
- the finger assignment control section 17 searches for the peak of the delay profile calculated by the search section 15 so that the multipath signal at the time of the beak is assigned to the finger section of the RAKE combining section 18.
- the RAKE synthesis unit 18 is controlled (step ST3).
- the finger assignment control unit 17 determines, for example, the source of the multipath signal received by the antenna 11. Is the base station A, and if the RF signal output from the A / D conversion section 14 is not yet assigned to the finger section 18a of the RAKE combining section 18, the signal (hereinafter, referred to as The rake combiner 18 is controlled so that the RF signal A-1 is assigned to the finger part 18a.
- the source of the multipath signal received by antenna 11 is base station A, and a part of the finger 18 a of RAKE combining section 18 has a signal already output from converting section 14. If is assigned, the RAKE combiner 18 is controlled so that the RF signal (hereinafter, referred to as RF signal A-2) is assigned to the finger part 18b.
- RF signal A-2 the RF signal
- the finger assignment control unit 17 determines that the transmission source of the multipath signal received by the antenna 11 is the base station B, and the finger unit 18c of the RAKE combining unit 18 still has A / A If the RF signal output from the D conversion unit 14 is not assigned, the RAKE combining unit 18 is controlled so that the RF signal (hereinafter, referred to as RF signal B-1) is assigned to the finger unit 18c. Control.
- the source of the multipath signal received by antenna 11 is the base station. If the RF signal output from the A / D conversion section 14 is already assigned to the finger section 18c of the RAKE combining section 18 if the station B is the station B, the RF signal (hereinafter, RF signal B— 2 is assigned to the finger section 18d.
- Code generator 16 generates a scramble ring code corresponding to base station 5 detected by search section 15. For example, if the base station 5 of the source of the multipath signal is the base station A, a scrambling code corresponding to the base station A is generated, and the base station 5 of the source of the multipath signal becomes the base station. In the case of the station B, a scrambling code corresponding to the base station B is generated.
- the finger sections 18a to 18d of the AKE combining section 18 use the scrambling code generated from the code generator 16 when inputting the RF signals A-1 to B-2. To demodulate the RF signals A-1 to B-2.
- the cell combining section 18e of the RAKE combining section 18 receives the F signal A-1 and the RF signal A.
- the RF signals ⁇ -1, B-2 are assigned to the cell units 18c, 18d of the RAKE combining unit 18 and the finger units 18c, 18d, the RF signal B-1 And the RF signal B-2 are combined at the maximum ratio, and the combined signal (hereinafter, referred to as the combined signal B) is stored in the cell input memory 19b (steps ST4 and ST5).
- Step ST 11 and ST 12 Decodes the synthesized signal A, and stores the decoded synthesized signal A in the cell output memory 21a (step ST13).
- the decoding section 20 performs an evening decoding process on the combined signal B. Then (step ST11, ST12), the combined signal B is decoded, and the decoded combined signal B is stored in the cell output memory 2 lb (step ST13).
- the selecting unit 22 selects a synthesized signal having a good decoding result from the decoded synthesized signals A and B stored in the cell output memories 2 la and 21 b, and selects the downlink common channel receiving unit 2. Output to 3.
- step ST14 the CRC results of the decoded synthesized signals A and B are checked (step ST14), and the synthesized signal whose C result is normal is checked. Then, one combined signal having a normal CRC result is selected (step ST15) and the combined signal is output to the downlink common channel receiving section 23 (step ST16).
- step ST15 receives the combined signal selected by selection section 22, downlink common channel receiving section 23 outputs the combined signal to protocol processing section 26 if the combined signal is control information, and outputs the combined signal to protocol processing section 26. If the combined signal is an overnight message, the combined signal is output to the application processing unit 27.
- the protocol processing section 26 Upon receiving the combined signal, which is control information, from the downlink common channel receiving section 23, the protocol processing section 26 performs processing related to communication control such as channel setting / release and handover according to the control information.
- the protocol processing unit 26 Performs communication control processing for setting the CCPCH, and outputs the combined signal output from the downlink common channel receiver 23. If the signal relates to a multipath signal transmitted from base station B, communication control processing for setting S-CCPCH with base station B is performed.
- the search unit 15 searches for the multipath signal of the S—CCPCH set by the protocol processing unit 26, and the RAKE combining unit 18 searches for a plurality of multipath signals searched by the search unit 15.
- the signals are combined at the maximum ratio, and the decoding unit 20 stores the combined signals in the cell output memory 21a.
- the S-CCPCH is set between the application processing unit 27 and the base station A or the base station B by the protocol processing unit 26 as described above, the downlink common channel reception unit 23?
- the conversion process such as the audio codec / image codec is performed according to the application data.
- the broadcast information receiving unit 24 does not perform the process of selecting the synthesized signal.
- the signal is received and output to the protocol processing unit 26.
- the downlink dedicated channel receiving section 25 transmits the base station 5 using the downlink dedicated channel even if the decoded combined signal stored in the cell output memory 21a is application data or control information. In this case, the selection unit 22 does not perform the selection processing of the composite signal, so that the composite signal is received. If the composite signal is application data, the composite signal is transmitted to the application processing unit 27. If the synthesized signal is control information, the synthesized signal is output to the protocol processing unit 26.
- a multipath signal related to a radio signal transmitted from a plurality of base stations 5 using the S-CCPCH is distributed to each of the source base stations.
- the source related to the same base station 5 Since the maximum ratio combining of the multipath signals is decoded, the synthesized signal is decoded, and a synthesized signal having a good decoding result is selected from the decoded synthesized signals. 5 has an effect that the reception quality of the radio signal can be improved without controlling the transmission power.
- finger sections 18a and 18b receive signals A-1 and A-2 relating to the multipath signal transmitted from base station A, and finger sections 18c and 18b, respectively.
- 18d input the RF signals B-1 and B-2 related to the multipath signal transmitted from the base station B, but the distribution of the RF signals to the finger sections 18a to 18d May be arbitrary.
- the finger sections 18 a, 18 b, and 18 c transmit the RF signals A-1, A-2, and A-3 related to the multipath signal transmitted from the base station A.
- the finger part 18d may receive the RF signal B-1 related to the multipath signal transmitted from the base station B.
- the rake combining section 18 has the cell combining section 18e and the cell combining section 18f is shown, but the rake combining section 18 has the cell combining section 18e. Only one unit may be mounted, and the cell combining unit may have the function of the cell combining unit 18e and the function of the cell combining unit 18f.
- the first embodiment shows a case where the decoding unit 20 performs the decoding process in a time-division manner. It goes without saying that two decoding units may be implemented.
- the selecting unit 22 selects a synthesized signal having a good decoding result from the decoded synthesized signals A and B stored in the cell output memories 21 a and 21 b.
- the output to the downlink common channel receiving unit 23 is shown in FIG. 9, but as shown in FIG. 9, the selecting unit 22 outputs, for example, the decoded composite data stored in the cell output memory 21a.
- the decoded combined signal A may be output to the downlink common channel receiving section 23 without confirming whether or not the decoding result is good (steps ST 17 and ST 18).
- the composite signal B after decoding stored in the cell output memory 21b is not good. It confirms whether or not the decoding result is good, and if the decoding result is good, outputs the decoded combined signal B to the downlink common channel receiving section 23.
- the active set is set to base stations A and B. However, the reception levels of radio signals transmitted from a plurality of base stations 5 are compared with each other. An update request means for transmitting an active set update request according to the comparison result may be provided.
- the search unit 15 and the protocol control unit 26 in FIG. 2 constitute a change request unit.
- FIG. 10 and FIG. 11 are flowcharts showing processing contents of the mobile communication terminal according to the third embodiment of the present invention.
- the reception level of CPICH includes, for example, propagation loss (path loss) or CP I CH Ec / N o (energy per chip of CP I CH vs. noise) CPIC HR SCP (CPICHR eceived S inal Code P power / CP I CH).
- the search unit 15 obtains the reception level of the CPICH of the base station 5 that is not currently included in the active set, in addition to the base station 5 included in the active set (step ST21).
- the search unit 15 When acquiring the CPICH reception levels of these base stations 5, the search unit 15 arranges these CPICH reception levels in order (step ST22) and calculates an additional threshold Tadd (step ST23). .
- the search unit 15 calculates the additional threshold value T add, but the additional threshold value T add may be received from the upper layer.
- the search unit 15 performs only the preset time T (time T is a timer value for removing an instantaneous change) from the reception level of the CPICH of the base station 5 which is not currently included in the active set.
- time T is a timer value for removing an instantaneous change
- the search unit 15 continues for a preset time T, and if there is a reception level greater than the additional threshold Tadd, determines whether there is room for accommodating the active set, that is, the base station as the active set. Even if station 5 is added, it is investigated whether or not it can withstand the load of the added reception processing (step ST25). If there is room for accommodating the active set, the active set as shown below is used. It is determined that additional processing is to be performed. In this case, the processing shifts to the processing of the terminal A in FIG.
- the search unit 15 continues for the preset time T, and when there is no reception level larger than the additional threshold Tadd, the search unit 15 has the most CPICH reception level among the base stations 5 included in the active set.
- a deletion threshold T delete is calculated from the low CPICH reception level X and the hysteresis parameter overnight H (step ST 26).
- the search unit 15 calculates the deletion threshold Tde1ete, but the search unit 15 may receive the deletion threshold Tde1ete from the upper layer.
- the search unit 15 continues the reception time of the CPI CH of the base station 5 included in the active set for a preset time T and has a reception level smaller than the above-described deletion threshold T delete. Confirm whether to perform (Step ST 24) o
- the search unit 15 determines to execute the following active set deletion processing. In this case, the processing shifts to the processing of terminal C in FIG. On the other hand, if there is no reception level smaller than the deletion threshold T de 1 ete for the preset time T, the process ends without performing the ACTIP SET update process.
- the protocol processing unit 26 transmits a signaling requesting the addition of the active set to the base station 5 (step ST31).
- the protocol processing unit 26 outputs an active set addition request signaling to the uplink dedicated channel transmission unit 29, and the uplink dedicated channel transmission unit 29 performs the dedicated channel processing and performs the addition request. Outputs the signaling to the modulation section 31.
- Modulating section 31 performs spread modulation on the addition request signaling output from uplink dedicated channel transmitting section 29 using a spreading code generated from code generator 30.
- the D / A converter 32 converts the modulated signal, which is a digital signal output from the modulator 31, into an analog signal, and the frequency converter 33 is subjected to digital / analog conversion by the DZA converter 32.
- the power amplifier 34 converts the frequency of the modulated signal to output an RF signal, and the power amplifier 34 amplifies the power of the RF signal and outputs it to the antenna 11.
- the active set addition request signaling is transmitted to base station 5, and base station 5 transfers the addition request signaling to base station controller 4.
- the base station controller 4 When the base station controller 4 permits addition of the active set, for example, the base station controller 4 uses the dedicated channel DPCH to signal the addition of the active set.
- the base station 5 to be permitted (including S—CCPCH parameters) is transmitted to the mobile communication terminal 6.
- the protocol processing unit 26 of the mobile communication terminal 6 receives the additional permission signaling of the active set transmitted from the base station 5 by the antenna 11, and transmits the downlink individual channel in the same manner as in the first embodiment.
- the content of the signaling is analyzed to determine whether the addition of the active set has been permitted (step ST32). Step ST33).
- the protocol processing unit 26 refers to the S-CCPCH parameter included in the signaling of the addition of the active set and determines whether the active set has been added.
- the base station 5 to be added to the list is confirmed, and the base station 5 is added to the active set (step ST34).
- the protocol processing unit 26 notifies the search unit 15, the finger assignment control unit 17 and the RAKE combining unit 18 of the S-CCCPCH parameters.
- the protocol processing unit 26 transmits the active set replacement request signal in the same manner as in the case of transmitting the active set addition request signaling.
- the ring is transmitted to base station 5 (step ST41).
- the active set replacement request signaling is transmitted to base station 5, and base station 5 transfers the replacement request signaling to base station controller 4. .
- the base station controller 4 When the base station controller 4 permits the exchange of the active set, the base station 5 may, for example, use the DPCH to exchange the active set.
- the mobile station transmits the permission signaling (including the S—CCPCH parameters of the base station 5 to which the addition is permitted) to the mobile communication terminal 6.
- the protocol processing unit 26 of the mobile communication terminal 6 receives the active set exchange permission signaling transmitted from the base station 5 by the antenna 11 and transmits the downlink individual channel in the same manner as in the first embodiment. Upon receiving the active set replacement permission signaling from the receiving unit 25 (step ST42), the content of the signaling is analyzed to determine whether the active set replacement is permitted (step S42). ⁇ 4 3).
- the protocol processing unit 26 determines that the replacement of the active set has been permitted, the protocol processing unit 26 selects the base station 5 having the lowest reception level among the base stations 5 included in the current active set. Exclude from the buset (step ST44).
- the protocol processing unit 26 checks the base station 5 to be added to the active set by referring to the S—CCPCH parameter included in the active set replacement permission signaling. Add the base station 5 to the active set (step S ⁇ 45) ⁇
- protocol processing unit 26 notifies the search unit 15, the finger assignment control unit 17, and the RAKE combining unit 18 of the S—CCCPCH parameters.
- reception processing of S—CPCCH of the base station 5 of the active set including the replaced base station 5 is started (step ST 46).
- the protocol processing unit 26 requests the active set deletion in the same manner as in the case of transmitting the active set addition request signaling.
- the signaling is transmitted to base station 5 (step ST51).
- the active set deletion request signaling is transmitted to base station 5, and base station 5 transfers the deletion request signaling to base station controller 4.
- the base station controller 4 When the base station controller 4 permits the deletion of the active set, the base station 5 transmits the active set deletion permission signaling to the mobile communication terminal 6 using, for example, DPCH.
- the protocol processing unit 26 of the mobile communication terminal 6 receives the active set deletion permission signaling transmitted from the base station 5 by the antenna 11, and performs downlink processing in the same manner as in the first embodiment. Upon receiving a signal indicating permission to delete an active set from the individual channel receiving unit 25 (step ST52), the content of the signal is analyzed to determine whether deletion of the active set is permitted. Yes (step ST43).
- the protocol processing unit 26 determines the S— of the base station 5 having the lowest reception level among the base stations 5 included in the current active set.
- the reception process of the CCPCH is stopped (step ST54), and the base station 5 is excluded from the active set (step ST55).
- FIG. 12 is a sequence diagram showing signaling of active set update in a wireless communication system.
- the information exchange between the mobile communication terminal 6, the base station 5, and the base station controller 4 will be described with reference to FIG. 12.
- the mobile communication terminal 6 When the active set is updated (step ST61), active set update information indicating that the active set has been updated is transmitted to base station 5 using RACH, which is a common channel (step ST612). ).
- Base station 5 receives active set update information from mobile communication terminal 6 Then, the active set update information is transferred to base station controller 4 (step ST63).
- the base station controller 4 Upon receiving the active set update information from the base station 5, the base station controller 4 inquires of the S—CPCCH state of the base station 5 newly included in the active set (step ST64). That is, it is confirmed whether or not the base station 5 newly included in the active set is currently performing a multimedia service.
- the base station controller 4 obtains the S—C CP CH parameters (eg, timing, code, etc.) and the service activation status, and activates RRC (Radio Resource Control) signaling. (Step ST67).
- S—C CP CH parameters eg, timing, code, etc.
- RRC Radio Resource Control
- the base station 5 receives the S-CCPCH parameter from the base station controller 4 and, for example, uses the common channel CPICH to signal and transmit the S-CCPCH parameter (step ST6). 8).
- the mobile communication terminal 6 When the mobile communication terminal 6 receives the signal of the S-CCPCH parameter from the base station 5 (step ST69), the mobile communication terminal 6 sets the S-CCPCH parameter-evening to perform the receiving operation (step ST69). Step ST70).
- Embodiment 3 shows a case where mobile communication terminal 6 transmits an active set update request to base station 5, it is assumed that a dedicated channel has already been set with base station 5. In this case, the active set of the dedicated channel may be diverted to the common channel. In this case, it is not necessary to transmit an active set update request to the base station 5.
- the mobile communication terminal 6 compares the reception levels of the radio signals transmitted from the plurality of base stations 5 with each other, and sends an active set update request to the base station 5 according to the comparison result. Although the information to be transmitted is shown, the mobile communication terminal 6 receives broadcast information necessary for updating the active set from the base station 5 and updates the active set by referring to the broadcast information. Means may be provided so that the base station 5 is not involved in updating.
- the search unit 15 and the protocol control unit 26 in FIG. 2 constitute a monitoring target updating unit.
- FIG. 13 is a sequence diagram showing parameter notification at the time of updating an active set in a wireless communication system.
- the base station controller 4 transmits information necessary for updating the active set (for example, a threshold value) to the base station 5 as broadcast information (step ST71) o
- the base station 5 When receiving the broadcast information from the base station control device 4, the base station 5 transfers the broadcast information to the mobile communication terminal 6 (step ST72).
- the mobile communication terminal 6 When the mobile communication terminal 6 receives the broadcast information from the base station 5 (step ST73), the mobile communication terminal 6 refers to the broadcast information and sets information necessary for updating the active set (for example, a threshold value) (for example, a threshold). Step ST73).
- a threshold value for example, a threshold
- the base station controller 4 After transmitting the broadcast information to the base station 5, the base station controller 4 The S-CCPCH status (eg, service status, timing) of the local base station is queried (step ST75).
- S-CCPCH status eg, service status, timing
- the base station controller 4 assembles the parameters of the S-CCPCH as information elements (step ST76), and transmits the information elements of the S-CCPCH to the base station 5 as broadcast information (step ST7). 7).
- the base station 5 Upon receiving the broadcast information from the base station control device 4, the base station 5 transfers the broadcast information to the mobile communication terminal 6 (step ST78).
- the mobile communication terminal 6 Upon receiving the broadcast information from the base station 5 (step ST79), the mobile communication terminal 6 refers to the broadcast information, sets the parameters of the S-CCPCH, and starts reception (step ST8). 0).
- FIG. 14 is a flowchart showing the update process of the active set in the mobile communication terminal 6.
- the mobile communication terminal 6 selects an active set addition process, a replacement process, or a deletion process in the same manner as in FIG. 11, the description is omitted.
- the protocol processing unit 26 of the mobile communication terminal 6 receives the S—CCCPCH parameters (including the service state of the S—CPCCH) as broadcast information from the base station 5 (step ST81).
- the protocol processing unit 26 refers to the service state of the S-CCPCH included in the S-CCPCH parameter, and determines whether the base station 5 corresponding to the S-CCPCH parameter is currently in service. (STEP ST82).
- the protocol processing unit 26 adds the base station 5 to the active set (step ST83).
- the protocol processing unit 26 supports the S—CCPCH parameter overnight. -Notify the switch section 15, finger assignment control section 1 ⁇ , and RAKE combining section 18.
- the protocol processing unit 26 receives S-CPCCH parameters (including the S-CPCCH service state) as broadcast information from the base station 5 (step ST85).
- the protocol processing unit 26 refers to the service state of the S-CCPCH included in the S-C'C PCH parameter, and the base station 5 corresponding to the S-CCPCH parameter provides the current service. It is checked whether the operation is in progress (step ST86).
- the protocol processing unit 26 has the lowest reception level among the base stations 5 included in the current active set.
- the base station 5 is excluded from the active set (step ST87).
- the protocol processing unit 26 adds the base station 5 corresponding to the S—CCPCH parameter to the active set (step ST88). O Further, the protocol processing unit 26 S— Notify the search section 15, finger assignment control section 17 and RAKE combining section 18 of the CCPCH parameters.
- step ST89 the process of receiving the S-CCPCH of the active set base station 5 including the replaced base station 5 is started.
- the protocol processing unit 26 receives the S—CCPCH of the base station 5 having the lowest reception level among the base stations 5 included in the current active set. The processing is stopped (step ST90), and the base station 5 is excluded from the active set (step ST91).
- mobile communication terminal 6 receives broadcast information necessary for updating the active set from base station 5 and refers to the broadcast information. Since the active set is configured to be updated, it is possible to ensure the reception quality of the radio signal even when the mobile communication terminal 6 moves.
- the mobile communication terminal 6 does not need to transmit an active set update request to the base station 5. This has an effect that the active set can be updated more quickly.
- the mobile communication terminal 6 compares the reception levels of the radio signals transmitted from the plurality of base stations 5 with each other, and sends an active set update request according to the comparison result.
- the reception levels of the radio signals may be estimated as follows. .
- the code and timing of the S-CCPCH are set and demodulation is performed.
- the base station 5 notifies the mobile communication terminal 6 of the power ratio between the CPICH (pilot channel) and the S-CCPCH (common channel) in advance, and 6 measures the power of the CPICH and implements a method of estimating the power of the S-CCPCH from the measured value of the power of the CPICH and the above power ratio.
- FIG. 15 is a sequence diagram showing notification of the power ratio between CPICH and S—CPCCH.
- the base station control device 4 obtains the power ratio between CPICH and S—CCPCH of each base station 5 (step ST101).
- the base station controller 4 transmits to the base station 5 the power ratio between the CPICH and the S—CCCPCH of each base station 5 as broadcast information.
- the base station 5 Upon receiving the broadcast information from the base station control device 4, the base station 5 transfers the broadcast information to the mobile communication terminal 6 (step ST102).
- the mobile communication terminal 6 measures the power of CPICH at each base station 5 and, when receiving the broadcast information from the base station 5 (step ST103), refers to the broadcast information and
- the power of the CPICH is multiplied by the power ratio of the CPICH and the S—CCPCH to convert the power of the S—CCPCH (step ST104).
- FIG. 16 is a flowchart showing the process of updating the active set in the mobile communication terminal.
- the search unit 15 of the mobile communication terminal 6 receives the power ratio between the CPICH and the S-CCPCH of each base station 5 from the base station 5 as broadcast information (step ST 1 1 1).
- the search unit 15 measures the power as the CPICH reception level of the base station 5 included in the active set as well as the base station 5 not currently included in the active set (step ST 1 1 2).
- the search unit 15 converts the power of the S—C CP CH by multiplying the power of the C I CH in each base station 5 by the power ratio of the C I CH and the S—C CP CH ( Step ST 1 1 3).
- the search unit 15 compares the power indicating the reception level of the S—CCCPCH in each base station 5 and sorts the reception levels of the S—CCCPCH in order (step ST114).
- Search section 15 sets the lowest S—CCPCH reception level among the S—CCPCH reception levels of base station 5 included in the active set to X, and receives the S—CCPCH reception. Calculate the additional threshold Tadd from the level X and the hysteresis parameter H for preventing the active set from fluttering.
- the search unit 15 calculates the additional threshold value T add, but the additional threshold value T add may be received from an upper layer.
- the search unit 15 After calculating the additional threshold value T ad d as described above, the search unit 15 proceeds to the process of step ST 24 in FIG. Hereinafter, the description is omitted because it is the same as in the first embodiment.
- information indicating the power ratio between CPICH and S-CCPCH is received from a plurality of base stations 6 in advance, and CPICH is used from a plurality of base stations 5.
- the reception level of the radio signal transmitted from the plurality of base stations 5 using the S-CCPCH is estimated from the reception level of the radio signal transmitted and the power ratio.
- S—C It is possible to obtain the reception level of a radio signal transmitted using the S-CCPCH from a plurality of base stations 5 without performing complicated processing such as setting the code after obtaining the CPCH parameters. The effect that can be performed. This is particularly effective when the transmission level of the S—CCPCH differs depending on the base station 5 because many code settings are not required.
- the mobile communication terminal when a plurality of base stations simultaneously broadcast multimedia data using the S-CCPCH, the mobile communication terminal performs the multimedia data reception. Selecting the most suitable base station is suitable for those who need to improve the reception quality of multimedia data.
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Abstract
Description
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Priority Applications (31)
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CN200480039536.9A CN1902844B (zh) | 2004-03-30 | 2004-03-30 | 移动通信终端及无线通信系统 |
US10/582,955 US7680496B2 (en) | 2004-03-30 | 2004-03-30 | Mobile communication method |
PCT/JP2004/004502 WO2005104402A1 (ja) | 2004-03-30 | 2004-03-30 | 移動体通信端末及び無線通信システム |
EP20070116359 EP1865629B1 (en) | 2004-03-30 | 2004-03-30 | Mobile communications terminal and radio communications system |
EP20100171655 EP2249489B1 (en) | 2004-03-30 | 2004-03-30 | Radio communication system and mobile terminal for receiving data of a multimedia broadcast multicast service |
DE200460020282 DE602004020282D1 (de) | 2004-03-30 | 2004-03-30 | Endgerät für mobile Kommunikation und Funkkommunikationsanordnung |
BRPI0418710A BRPI0418710B8 (pt) | 2004-03-30 | 2004-03-30 | método e sistema de comunicação relativos a um serviço de difusão múltipla de transmissão de multimídia (mbms), estação móvel, método de comunicação para utilização em uma estação de base, e, estação de base. |
EP20090151654 EP2088692B8 (en) | 2004-03-30 | 2004-03-30 | Mobile communications terminal and radio communications system |
EP20070116370 EP1871018B1 (en) | 2004-03-30 | 2004-03-30 | Mobile communications terminal and radio communications system |
DE200460010301 DE602004010301T2 (de) | 2004-03-30 | 2004-03-30 | Mobilkommunikationsendgerät und funkkommunikationssystem |
DE200460019997 DE602004019997D1 (de) | 2004-03-30 | 2004-03-30 | Mobiles Kommunikationsendgerät und Funkkommunikationssystem |
EP20070116364 EP1865630B1 (en) | 2004-03-30 | 2004-03-30 | Mobile communications terminal and radio communications system |
EP20100171649 EP2242190B1 (en) | 2004-03-30 | 2004-03-30 | Mobile communications terminal and radio communications system |
JP2006512418A JP3989946B2 (ja) | 2004-03-30 | 2004-03-30 | 通信方法 |
EP20100171651 EP2246997B1 (en) | 2004-03-30 | 2004-03-30 | Radio communication system and mobile terminal or receiving data of a multimedia broadcast mulicast service |
EP20100171652 EP2246998B1 (en) | 2004-03-30 | 2004-03-30 | Radio communication system and mobile terminal for receiving data of a multimedia broadcast multicast service |
KR1020077012849A KR100909062B1 (ko) | 2004-03-30 | 2004-03-30 | 이동통신단말 및 무선통신시스템 |
EP20040724366 EP1699147B1 (en) | 2004-03-30 | 2004-03-30 | Mobile communication terminal and radio communication system |
EP20100155186 EP2202896B1 (en) | 2004-03-30 | 2004-03-30 | Mobile communications terminal and radio communications system |
DE200460020694 DE602004020694D1 (de) | 2004-03-30 | 2004-03-30 | Mobiles Kommunikationsendgerät und Funkkommunikationssystem |
HK07105345.4A HK1099427A1 (en) | 2004-03-30 | 2007-05-21 | Mobile communication terminal and radio communication system |
DE200760005832 DE602007005832D1 (de) | 2004-03-30 | 2007-09-13 | Mobiles Kommunikationsendgerät und Funkkommunikationssystem |
RU2008105067/09A RU2372718C1 (ru) | 2004-03-30 | 2008-02-11 | Терминал мобильной связи и система радиосвязи |
RU2009129365/09A RU2419985C2 (ru) | 2004-03-30 | 2009-07-29 | Терминал мобильной связи и система радиосвязи |
RU2009129363/09A RU2425445C2 (ru) | 2004-03-30 | 2009-07-29 | Терминал мобильной связи и система радиосвязи |
US12/652,439 US7773986B2 (en) | 2004-03-30 | 2010-01-05 | Mobile communication method |
US12/652,391 US7996008B2 (en) | 2004-03-30 | 2010-01-05 | Mobile communication terminal and radio communication system |
RU2011112172/08A RU2522313C2 (ru) | 2004-03-30 | 2011-03-30 | Терминал мобильной связи и система радиосвязи |
US13/175,584 US8229426B2 (en) | 2004-03-30 | 2011-07-01 | Mobile communication terminal, method, and radio communication system |
US13/175,568 US8364149B2 (en) | 2004-03-30 | 2011-07-01 | Base station apparatus, method, and radio communication system |
US13/735,730 US8923912B2 (en) | 2004-03-30 | 2013-01-07 | Base station apparatus, method, and radio communication system |
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