WO2007043098A9 - 移動局及び通信方法 - Google Patents
移動局及び通信方法Info
- Publication number
- WO2007043098A9 WO2007043098A9 PCT/JP2005/018096 JP2005018096W WO2007043098A9 WO 2007043098 A9 WO2007043098 A9 WO 2007043098A9 JP 2005018096 W JP2005018096 W JP 2005018096W WO 2007043098 A9 WO2007043098 A9 WO 2007043098A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- transmission power
- physical data
- data channel
- channel
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims description 136
- 230000005540 biological transmission Effects 0.000 claims abstract description 699
- 230000008569 process Effects 0.000 claims description 89
- 238000012545 processing Methods 0.000 claims description 55
- 238000007906 compression Methods 0.000 claims description 32
- 230000006835 compression Effects 0.000 claims description 32
- 238000011156 evaluation Methods 0.000 description 51
- 238000005259 measurement Methods 0.000 description 28
- 239000010410 layer Substances 0.000 description 27
- 230000000694 effects Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 15
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 11
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 11
- 230000006870 function Effects 0.000 description 11
- 230000007704 transition Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000000284 extract Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 230000011664 signaling Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 4
- 238000013468 resource allocation Methods 0.000 description 4
- 108010003272 Hyaluronate lyase Proteins 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000010187 selection method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 108010071289 Factor XIII Proteins 0.000 description 1
- HOKDBMAJZXIPGC-UHFFFAOYSA-N Mequitazine Chemical compound C12=CC=CC=C2SC2=CC=CC=C2N1CC1C(CC2)CCN2C1 HOKDBMAJZXIPGC-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/282—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account the speed of the mobile
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/22—Negotiating communication rate
-
- 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
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
Definitions
- the present invention relates to a mobile station and a communication method implemented in a mobile communication system to which a CDMA (Code Division Multiple Access) system is applied, and in particular, high-speed packet data in the uplink.
- CDMA Code Division Multiple Access
- the present invention relates to a mobile station and a communication method implemented in a mobile communication system in which a channel for transmitting is set.
- DPCCH is used for transmission / reception of various control information (synchronization pilot signal, transmission power control signal, etc.) in the physical layer.
- the DPDCH is used for transmission / reception of various data from the MAC layer (Media Access Control: protocol layer above the physical layer).
- MAC layer Media Access Control: protocol layer above the physical layer.
- a transport channel a channel used for data transfer between the MAC layer and the physical layer.
- DCH Dedicated Channel
- DPDCH Dedicated Channel
- HSDPA High Speed Downlink Packet Access
- HS—PDSCH High Speed-Physical Downlink Shared CHannel
- HS—SCCC H High Speed-Shared Control CHannel
- HS-PDSCH and HS-SCHC are used by multiple mobile stations.
- HS—PDSCH transmits data with MAC layer strength, similar to DPDCH for Release 1999.
- the HS-SCCH transmits control information (transmission data modulation scheme, packet data size, etc.) when transmitting data using the HS-PDSCH.
- the spreading factor is fixed at 16, and a plurality of spreading codes (that is, a plurality of channels) can be assigned to one mobile station at the time of one packet transmission.
- the allocation control stipulated in the 3GPP standard to be performed at the base station (that is, the fixed station side in a general communication system).
- HS-DPCCH High Speed-Dedicated Physical Control CHannel
- the mobile station transmits the reception determination result (ACK / NACK) and downlink radio quality information (CQ I: Channel Quality Indicator) for the data sent on the HS-PDSCH to the base station using the HS-DPCCH. .
- the base station transmits HS-PDSCH and HS-SCCH in pairs.
- the mobile station receives the HS-PDSCH and HS-SCCH sent from the base station, determines whether there is an error in the data! /, And uses the determination result (ACK / NACK) using the HS-DPCCH. To send. Therefore, the frequency with which the mobile station power transmits ACKZNACK to the base station also changes according to the transmission frequency of the downlink packet.
- the mobile station transmits CQI to the base station in accordance with the period value configured and notified to the mobile station at the initial stage of communication or during communication.
- TFC Transport Format Combination
- TFCI TFC Index
- state transition (Support, Excess Power, Block) is defined for each TFC, and the TFC state (and state transition) is determined to reflect the transmission state.
- 321 Non-Patent Document 1: 11. Chapter 4 Transport format combination selection in UE, Figure 1 IV.4.1).
- the unit transmission time (slot: 10 milliseconds) when the total transmission power value of the mobile station (not an estimated value! Or measured value) has reached the maximum transmission power specification value (3 ⁇ 4V, or the maximum transmission power setting value).
- the state of each TFC in the DPDCH is transitioned by evaluating the number of 1/15). This point is defined in the standard TS25.133 (Non-patent document 2: 6.4 Transport format combination selection in UE, 6.4.2 Early Requirements).
- Non-Patent Document 1 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Medium Access Control (MA) protocol specification (Releas e 5) 3GPP TS 25.321 V5.9.0 (2004—06)
- Non-Patent Document 2 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Requirements for support of radio resource management (FD D) (Release 5) 3GPP TS 25.133 V5.12.0 (2004—09)
- Release 1999 is designed primarily for continuous data transmission and reception, such as voice calls.
- HSDPA that enables high-speed downlink packet communication was added, but no specifications were formulated for high-speed packet communication in uplink, and Release 1999 specifications were applied as they were. Therefore, even when burst transmission such as packet data is performed from the mobile station to the base station in the uplink, dedicated dedicated channels (DCH and DPDCH) must always be assigned to each mobile station.
- DCH and DPDCH dedicated dedicated channels
- data transmission from the mobile station is performed by autonomous transmission control (Autonomous Transmission) by the mobile station.
- autonomous transmission control Autonomous Transmission
- the transmission timing of each mobile station power is arbitrary (or statistically random).
- the fixed station does not know the transmission timing of the mobile station.
- transmissions of other mobile station powers are all sources of interference, but the fixed station side that manages radio resources manages the amount of interference noise and its fluctuation during base station reception. The quantity can only be predicted (or managed) statistically.
- the fixed station side that manages the radio resources does not know the transmission timing of the mobile station and can accurately predict the interference noise amount. Therefore, assuming that the fluctuation amount of interference noise is large, radio resource allocation control is performed to ensure a sufficient margin.
- radio resource management by the fixed station side is performed in a base station controller (RNC: Radio Network Controller) that collects a plurality of base stations other than the base station itself.
- RNC Radio Network Controller
- HSUPA High Speed Uplink Packet Access
- E — DCH technology uses ATI (Adaptive Modulation and Coding) technology introduced in HSDP A in Release 5 and HARQ (Hybrid Automatic Repeat reQuest) technology, as well as a short transmission time interval (TTI). It is possible.
- E-DCH means a transport channel that is an extension of DCH, which is a conventional transport channel, and is set independently of DCH.
- E-DCH uplink radio resource control called "scheduling" is performed on the fixed station side. Since the radio wave propagation environment is different between the uplink and downlink, it is different from the scheduling of HSDP A.
- the mobile station performs data transmission control based on the scheduling result that is also notified of the fixed station power.
- the fixed station transmits the determination result (ACK / NACK) for the received data to the mobile station.
- a base station (called NodeB in 3GPP) is specified as a scheduling device.
- TS 25. 309v6.3.0 Non-patent Document 3
- Non-patent Document 3 is available as a 3GPP Technical Specification for E-DCH.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-215276
- E-DPDCH End need-DPDCH
- E-DPCCH Enhanced-DPCCH
- E-DPD CH and E-DPCCH are physical channels corresponding to DPDCH and DPCCH prior to Release 5
- E-DPDCH transmits MAC layer power data
- E-DPCCH transmits control information.
- DPDCH TFC E-TFC (Enhanced-TFC) that defines the communication speed is used.
- the E-DPDCH gain factor (j8 ed) is determined based on the communication speed.
- E-AGCH Enhanced-Absolute Grant CHannel
- E-RGCH Enhanced-Relative Grant CHannel
- E—HICH E-DCH HARQ Acknowledgment Indicator CHannel
- E-DCH and DCH are treated as independent data streams (Data Stream), and it is determined that DCH transmission has priority over E-DCH transmission.
- Data Stream data stream
- E-DCH is a data flow independent of DCH
- DCH transmission has priority over E-DCH transmission, so the mobile station secures the transmission power necessary for DCH transmission and the remaining E-TFC is selected within the transmission power margin and E-DCH is transmitted.
- the state (blocked state or supported state) is defined for E-TFC, as with TFC.
- Non-Patent Document 3 TS25.309
- E-DCH transmission based on the surplus power (transmission power margin) after securing the power required for DCH transmission from the maximum total transmission power of the mobile station Determine the communication speed (E—TFC).
- the E-TFC state is changed based on the transmission power margin.
- V ⁇ since detailed criteria for state transition of E-TFC are defined and V ⁇ , the transition operation of mobile stations in the communication system is not unique and the operation of the communication system becomes unstable and inefficient. is there.
- the criteria for determining E-TFC when transmitting E-DCH is unclear. Thus, since the detailed specifications in the E-TFC determination process are unknown, there is a problem that an actual device cannot be created.
- An object of the present invention is to solve the problems caused by the addition of E-DCH, and to provide a mobile station and a communication method for appropriately performing uplink transmission control and radio resource control.
- the mobile station includes a first physical data channel for transmitting user data transmitted from a higher layer through a transport channel to the fixed station side, and an extension of the first physical data channel.
- Transmission control means for selecting transmission control information including a transmission rate corresponding to user data for each of the two physical data channels, transmission control information selected by the transmission control means, the first physical data channel, and A multiplex modulation means for multiplex modulation of transmission data using the amplitude coefficient of the second physical data channel, and a transmission power control means for performing transmission power control of the transmission means for amplifying the transmission data to a predetermined transmission power for transmission.
- the transmission control means does not transmit the control channel for transmitting the control data of the second physical data channel. Do exceeds the transmission power value! /, Or determines, and selects the transmission control information of the first physical data channel.
- the first physical data channel for transmitting the user data transmitted from the upper layer through the transport channel to the fixed station side, and the first physical data channel are extended.
- the transmission control information selection process determines whether or not the transmission power when the control channel for transmitting the control data of the second physical data channel is not transmitted exceeds the maximum transmission power value. Transmission control information is selected.
- the mobile station includes a first physical data channel for transmitting user data transmitted from an upper layer through a transport channel to the fixed station side, and an extension of the first physical data channel.
- Transmission control means for selecting transmission control information including a transmission rate corresponding to user data for each of the two physical data channels, transmission control information selected by the transmission control means, the first physical data channel, and A multiplex modulation means for multiplex modulation of transmission data using the amplitude coefficient of the second physical data channel, and a transmission power control means for performing transmission power control of the transmission means for amplifying the transmission data to a predetermined transmission power for transmission.
- the transmission control means does not transmit the control channel for transmitting the control data of the second physical data channel.
- the transmission control operation of the mobile station during E—DCH transmission is unique, and the operation of the communication system When the efficiency is increased, it produces a habit effect.
- the first physical data channel for transmitting the user data transmitted from the upper layer through the transport channel to the fixed station side, and the first physical data channel are extended.
- the transmission control information selection process is a transmission power when the control channel for transmitting the control data of the second physical data channel is not transmitted.
- the transmission control information of the first physical data channel is selected and the transmission control operation of the mobile station at the time of E—DCH transmission is unique and the operation of the communication system is determined. When it becomes more efficient, it has a! / ⁇ ⁇ effect.
- FIG. 1 is an explanatory diagram explaining a radio communication system according to the present invention.
- FIG. 2 is a block diagram showing a configuration of a mobile station according to Embodiment 1 of the present invention.
- FIG. 3 is a block diagram showing a configuration of a fixed station (base station Z base station control device) according to Embodiment 1 of the present invention.
- FIG. 4 is a flowchart explaining the entire transmission control process by the mobile station according to Embodiment 1 of the present invention.
- FIG. 5 is a flowchart explaining DCH transmission control processing by the mobile station according to Embodiment 1 of the present invention.
- FIG. 6 is a flowchart illustrating processing for confirming a transmission power margin for DCH transmission by the mobile station according to Embodiment 1 of the present invention.
- FIG. 7 is a flowchart explaining a TFC state evaluation (TFC restriction) process by a mobile station according to Embodiment 1 of the present invention.
- FIG. 8 is a flowchart explaining an E-DCH transmission control process by a mobile station according to Embodiment 1 of the present invention.
- FIG. 9 is a flowchart illustrating processing for confirming a transmission power margin for E-DCH transmission by the mobile station according to Embodiment 1 of the present invention.
- FIG. 10 is a flowchart for explaining E-TFC state evaluation (E-TFC restriction) processing by the mobile station according to Embodiment 1 of the present invention.
- FIG. 11 is a flowchart explaining E-TFC selection processing by the mobile station according to Embodiment 1 of the present invention.
- FIG. 12 is a flowchart explaining transmission power control processing by a mobile station according to Embodiment 1 of the present invention.
- FIG. 13 is a diagram explaining the relationship between maximum transmission power setting and transmission power of a mobile station according to Embodiment 1 of the present invention.
- FIG. 14 is a diagram explaining the relationship between the maximum transmission power setting and transmission power of the mobile station according to Embodiment 1 of the present invention.
- FIG. 15 is a diagram explaining the relationship between maximum transmission power setting and transmission power of a mobile station according to Embodiment 1 of the present invention.
- FIG. 16 is an explanatory diagram explaining the maximum transmission power specification of the mobile station according to Embodiment 1 of the present invention.
- FIG. 17 is an explanatory diagram explaining the maximum transmission power specification of a mobile station according to Embodiment 2 of the present invention.
- FIG. 18 is a flowchart illustrating an E-TFC state evaluation (E-TFC restriction) process by a mobile station according to Embodiment 3 of the present invention.
- FIG. 19 is a flowchart illustrating an E-TFC state evaluation (E-TFC restriction) process by a mobile station according to Embodiment 4 of the present invention.
- FIG. 20 is a flowchart explaining transmission control processing by a mobile station according to Embodiment 5 of the present invention.
- FIG. 21 is a flowchart explaining transmission power control processing by a mobile station according to Embodiment 5 of the present invention.
- FIG. 22 is a block diagram showing a configuration of a mobile station according to Embodiment 6 of the present invention.
- FIG. 23 is a flowchart explaining transmission power control processing by a mobile station according to Embodiment 7 of the present invention.
- FIG. 24 is a flowchart explaining the entire transmission control process by the mobile station according to Embodiment 8 of the present invention.
- E-AGCH / E-RGCH 114 E-AGCH / E-RGCH, 201 Radio Resource Control Unit, 202 Media access controller, 205 Modulator, 206 Transmitter,
- Radio resource control unit 302 Media access control unit, 305 Modulation unit,
- FIG. 1 is an explanatory view for explaining a radio communication system according to the present invention.
- a wireless communication system 101 includes a mobile station 102, a base station 103, and a base station control device 104.
- Base station 103 communicates with a plurality of mobile stations 102 over a specific communication range (commonly referred to as a sector or cell).
- a specific communication range commonly referred to as a sector or cell.
- FIG. 1 for convenience of explanation, only one mobile station 102 is shown. Communication is performed between the mobile station 102 and the base station 103 using one or a plurality of radio links (or channels).
- the base station controller 104 communicates with a plurality of base stations 103 and is connected to an external communication network 105 such as a public telephone network or the Internet, and relays packet communication between the base station 103 and the communication network 105.
- an external communication network 105 such as a public telephone network or the Internet
- FIG. 1 for convenience of explanation, only one base station 103 is shown.
- the mobile station 102 is called UE (User Equipment)
- the base station 103 is called NodeB
- RNC Radio Network Controller
- An uplink DPCCH (Dedicated Physical Control CHannel) 106 is a control physical channel (Physical Control Channel) from the mobile station 102, and a downlink DPCCHIO 7 is a control physical channel from the base station 103. It is.
- the two DPCCHs (106, 107) perform synchronization control of the transmission / reception timing between the mobile station 102 and the base station 103, and the physical radio link during communication is maintained.
- Uplink DPCCH 106, DPDCH 108, HS—DPCCH 110, and Downlink DPCCH 107, DPDCH 109, HS—PDSCH ZHS—SCCH 111 are channels prior to release 5.
- the uplink E-DPDCH ZE-DPCCH 112 is a physical channel for E-DCH transmission.
- the downlink E-HICH 113 is a channel for notifying the mobile station 102 of the reception determination result (ACK / NACK) of E-DCH data at the base station 103.
- the downlink E-AG CHZE-RGCH 114 is a channel for notifying the scheduling result for E-DCH.
- the expression format of the radio resource allocation results includes speed information (for example, ETFC and maximum transmission speed setting value), power information (maximum transmission power! / Or ratio of maximum transmission power, etc.), channel amplitude information (Channel amplitude coefficient or ratio of channel amplitude coefficients).
- FIG. 2 is a block diagram showing the configuration of the mobile station according to Embodiment 1 of the present invention.
- the radio resource control unit 201 controls each unit in the mobile station in order to perform various settings such as channel combinations and transmission speeds necessary for transmission and reception. Further, the radio resource control unit 201 outputs communication setting information (CH_config) and QoS information (HARQ profile).
- CH_config communication setting information
- QoS information QoS information
- Various communication setting information (CH_config) is notified to the fixed station side (base station controller 104Z base station 103) power mobile station 102 (called RRC signaling in W-CDMA) at the initial stage of communication start or during communication.
- RRC signaling in W-CDMA
- Antenna 207, receiver 209, demodulator 210, and media access controller 202 and stored in radio resource controller 201.
- the radio resource control unit 201 places information exchange (RRC signaling) between the fixed station side (base station control apparatus 104Z base station 103) and the radio resource control unit, which will be described later, on the DPDCH as data.
- the FACHZRACH channel (not shown!) May be used. If PDCH is set, it can be placed on HS-PDSCH (in case of downlink). In this embodiment, the operation during communication will be explained, and it will be carried on DPDCH! I will explain in a moment.
- the transmission setting evaluation unit 203 internally evaluates the DCH TFC and the E—DCH E—TFC, and sets the state such as “Supported State”, and the usable communication speed. (TFC / E— TFC restriction function).
- transmission setting evaluation section 203 receives various communication setting information (CH_config) input from radio resource control section 201 and E-TFC from transmission rate control section 204. And the gain factor ( ⁇ ed, eff, ⁇ ec), the transmission power information (UE transmit power information) input from the transmission power measurement control unit 208, and the transmission status, E-TFC restriction function block (E-TFC Evaluate by (Restriction) and control the state transition of availability of each E-TFC.
- the evaluation result is output to the transmission rate control unit 204 as state information (E-TFC_state) of each E-TFC.
- various setting information (CH_config) input from radio resource control unit 201, TFC and gain factor from transmission rate control unit 203, and input from transmission power measurement control unit 208 Evaluate using transmit power information (UE transmit power info), control the state transition of availability of each TFC, and output the evaluation result to the transmission rate control unit 204 as status information (TFC_stat) of each TFC .
- CH_config transmit power information
- UE transmit power info transmit power information
- TFC_stat status information
- Transmission rate control section 204 has a transmission rate selection (E-TFC Selection) function for selecting one E-TFC to be used when E-DCH data is transmitted. Based on the state information (E-TFC_state) input from the transmission setting evaluation unit 203 and the received E-AGCHZE RGCH force separated scheduling result information (Sche_grant), the transmission rate control unit 204 performs the actual transmission. One E-TFC to be used is determined, and the effective E-DPDCH gain factor ( ⁇ ed, eff) and E-DPCCH gain factor ( ⁇ ec) are determined by the transmission setting evaluation unit 203 and the modulation. Output to part 205.
- E-TFC Selection transmission rate selection
- the transmission rate control unit 204 uses the scheduling result information transmitted from the fixed station side to set the maximum value of available uplink radio resources (eg, E—DPDCH channel power ratio) as an internal variable (Serving_grant E-TFC selection is performed so that E-DCH data with higher priority is transmitted within that range.
- the transmission rate control unit 204 is based on ⁇ ed calculated based on the communication rate (E—TFC) instead of the effective gain factor (j8 ed, e ff) and the QoS of the multiplexed transmission data. Output the power offset ( ⁇ E-DPDCH) with the maximum value selected.
- the transmission rate control unit 204 when there are other physical channels that transmit simultaneously, Outputs TFC information selected for DCH and gain factors ( ⁇ d, ⁇ c, ⁇ hs) of various channels (DPDCH, DPCCH, HS—DPCCH) to transmission setting evaluation section 203 and modulation section 205
- the radio resource control unit 201, the transmission setting evaluation unit 203, and the transmission rate control unit 204 described above constitute transmission control means.
- the transmission setting evaluation unit 203 and the transmission speed control unit 204 constitute a part of the media access control unit 202.
- the media access control unit 202 inputs transmission data (DTCH) and control information (RRC_signaling (D CCH)) from an upper protocol layer (not shown), and performs DCH or E-DCH according to channel settings.
- the data is allocated to and output to the modulation unit 205 as channel data.
- Modulator 205 receives each communication speed setting (TFC, E-TFC) and each gain factor ( ⁇ d,
- each uplink channel (DPDCH, DPCCH, HS-DPCCH, E-DPDCH, E-DPCCH) actually transmitted is Multiplexing is performed by a known technique such as orthogonal multiplexing (IQ multiplexing). Further, spread spectrum modulation processing is performed by a known technique, and a modulation signal (McxLsignal) is output. At this time, if necessary, the modulation operation is controlled in accordance with a control signal (cont) from a transmission power measurement control unit 208 described later.
- the modulation unit 204 constitutes multiple modulation means.
- Transmitting unit 206 amplifies the input modulation signal (Mod_sig na l) by known techniques to the required transmission power levels then converted into a radio frequency signal, and outputs it as a radio signal (RF_signal).
- the radio signal (RF_signal) is wirelessly transmitted from the antenna 207 and is branched and output to the transmission power measurement control unit 208.
- the transmission unit 2 06 in accordance with the transmission power control information from the transmission power measurement control unit 208 (Po_ CO nt), adjusts the transmission power of the radio signal (RF_signal).
- the transmission power measurement control unit 208 receives each gain factor (from the transmission speed control unit 204 (
- the transmission power measurement control unit 208 has a function of measuring and estimating the transmission power and total transmission power of each channel. From the radio signal (RF_signal) output from the transmitter 206, within a predetermined time interval (1 frame for W—CDMA) Measure the average channel power or total average transmit power of each frame (frame), 1 transmission time interval (Transmit Time Interval), 1 slot (slot), etc. (or estimate) Then, transmission power information (UE transmit power info) is output to the transmission setting evaluation unit 203.
- the transmission unit 206, the antenna 207, and the transmission power measurement control unit 208 described above constitute transmission means.
- Receiving section 209 receives a downlink radio signal (RF_signal) received by antenna 207, performs frequency conversion and despreading by a known technique, and outputs a demodulated signal (Demo signal).
- the demodulator 210 receives a demodulated signal (DemocLsignal) and separates various physical downlink channels using a known technique. Specifically, demodulation section 210 extracts control information necessary for demodulating DPDCH from DPCCH, demodulates DPDCH, and outputs DCH data. Also, a transmission power control signal (TPC) for the uplink is extracted and output to the transmission power measurement control unit 208.
- RF_signal downlink radio signal
- Demodulator 210 receives a demodulated signal (DemocLsignal) and separates various physical downlink channels using a known technique. Specifically, demodulation section 210 extracts control information necessary for demodulating DPDCH from DPCCH, demodulates DPDCH, and outputs DCH data. Also
- the demodulation unit 210 extracts HS-DSCH data from the HS-PDSCH and outputs it to the media access control unit 202. Further, when receiving the HS-DSC H, the demodulation unit 210 performs reception determination, outputs the determination result (ACK / NACK) to the transmission rate control unit 204, and places it on the uplink HS-DPCCH. This reception determination result (ACK / NACK) is transmitted as HS-DPCCH data to base station 103 via modulation section 205, transmission section 206, and antenna 207. In addition, demodulation section 210 extracts E-DCH data reception determination result (ACK / NACK) information at the base station from the received E-HICH, and outputs it to transmission rate control section 204.
- ACK / NACK E-DCH data reception determination result
- the media access unit 202 extracts the control information (RRC_signaling: DC CH) including the setting information (CH_config) in the DCH data or HS-P DSCH data input from the demodulation unit 209, and extracts it.
- the data is output to the resource control unit 201.
- the media access control unit 202 outputs the upper layer data (DTCH) to the upper protocol layer. .
- FIG. 3 is a block diagram showing a configuration on the fixed station side according to Embodiment 1 of the present invention.
- the internal structure of the fixed station (function block, data and control signal flow) ) Will be described. Note that the same names are used for the mobile station's internal block diagram shown in Fig. 2 that has equivalent functions.
- each block on the fixed station side represents a logical functional unit (entity).
- entity Depending on the implementation form of the base station 103 and the base station control device 104, either of the above two devices or independent of each other. It shall be provided in a separate device.
- a fixed station is a base station controller (RNC).
- RNC base station controller
- Radio resource control section 301 controls each section on the fixed station side in order to control various settings such as channel combinations and transmission speeds necessary for transmission and reception with mobile station 102.
- the radio resource control unit 301 outputs various setting information (CH_ C onfig).
- the various setting information (CH_config) includes amplitude coefficient setting, transmission timing setting, HARQ file information, communication speed setting (TFCS, E-TFCS), etc. for each channel. Further, the various setting information (CH_ C onfig), in communication start early stages or communication course, be transmitted to the mobile station 102 via the base station 103 from the base station controller 104.
- the radio resource control unit 301 outputs the various setting information (CH_config) transmitted / received to / from the mobile station as control information (RRC_signalling).
- the mobile station control information received from the mobile station 102 (RRC_sig na lling), input from the media access control unit 302 to be described later.
- the FACHZRACH channel (not shown) is set when DPDCH is not set at the initial communication setting, and the downlink DPDC H is set even during communication. If not, it can be included in the HS-PDSCH (downlink). In this embodiment, the operation during communication is described, and it is assumed that it is placed on the DPDCH.
- Transmission setting evaluation section 303 a variety of communication setting information inputted from the radio resource control unit 301 (CH_ C onfig), controls the transmission of the downlink.
- the transmission setting evaluation unit 303 also has a function (TF C Restriction) that evaluates the state of each TFC of the downlink DPDCH and limits the usable communication speed (TF C Restriction), and uses the evaluated state information (TFC_state).
- TF C Restriction a function that evaluates the state of each TFC of the downlink DPDCH and limits the usable communication speed (TF C Restriction), and uses the evaluated state information (TFC_state).
- the transmission speed control unit 304 selects one TFC to be used when transmitting DCH data, a transmission speed determination (TFC Selection) function, and HSDPA data transmission. It has downlink scheduling (HSDPA scheduling) function and E—DCH data transmission uplink scheduling (E-DCH scheduling) function.
- the transmission speed control section 304 based on the date information (TFC_ S tate) inputted from the transmission setting evaluation section 303 determines one TFC for use in the actual transmission, TFC information selected (TFC) and the gain factor ( ⁇ d, ⁇ c) of each channel are output.
- TFC information selected (TFC) TFC information selected (TFC)
- ⁇ d is used for DPDCH
- i8 c is used for DPCCH.
- the HSDPA packet reception determination result (ACK / NACK) transmitted from the mobile station 102 is input from the demodulator 310 described later, and used for the above-mentioned scheduling for HSDPA, and the scheduling result information (Schejnfo) is input to the modulator 305. Output.
- the radio resource control unit 301, the transmission setting evaluation unit 303, and the transmission speed control unit 304 described above form a transmission control means. Further, the transmission setting evaluation unit 303 and the transmission speed control unit 304 constitute part of the media access unit control 302.
- the media access control unit 302 inputs transmission data (DTCH) from an upper protocol layer (not shown) and control information (RRC_signalling (DCCH)) from the radio resource control unit 301, and according to channel settings, etc. Data is assigned to DCH or HS-DSCH and output to modulation section 305.
- DTCH transmission data
- DCCH control information
- Modulation section 305 includes TFC information (TFC) input from transmission rate control section 304, channel amplitude information (j8d,
- the transmission unit 306 an input modulation signal (Mod_sig na l) was amplified by known techniques to the power required After conversion into a radio frequency signal, and outputs a radio signal (RF_ S ignal).
- Radio signal (RF_ S ignal) from the antenna 307 of the downlink link physical channel (DPCCH107, DPDCH109, HS- PDSCH111, E- HICH113, E- AGC H / E-RGCH114) it is wirelessly transmitted as.
- receiving unit 309 receives the uplink radio signal received by the antenna 307 (RF_sign a l), and frequency conversion and despreading a known technique, and outputs a demodulated signal (Demo signal).
- Demodulation section 310 receives a demodulated signal (DemocLsignal) and separates various uplink channels (DPCCH'DPDCH'HS-DPCCH'E-DPDCH'E-DPCCH) by a known technique.
- Demodulator 3 10 extracts DPCCH force control information necessary for DPDCH demodulation, demodulates DPDCH, and outputs DCH data.
- Demodulation section 310 separates the HS-PDSCH reception determination result (ACK / NACK) and downlink quality information (CQI) from HS-DPCCH and outputs them to the HSDPA scheduler of transmission rate control section 304. Also, control information necessary for E-DPDCH demodulation is extracted from E-DPCCH, E-DPDCH is demodulated, and E-DCH data is output. Also, the E-DPDCH demodulation decision result (ACKZNACK info) is placed on E-HICH as E-HICH data.
- ACKZNACK info E-DPDCH demodulation decision result
- Media access control unit 302 in the DCH data or E- DCH data input from demodulation section 309, if included control is control information (RRC_sig na lling) including setting information (CH_config) like retrieves it, Output to the radio resource control unit 201. Further, when the input DCH data or E-DCH data is data of an upper protocol layer (not shown!), The media access control unit 302 outputs the upper layer data (DTCH) to the upper protocol layer.
- RRC_sig na lling control information
- CH_config setting information
- FIG. 4 is a flowchart for explaining DCHZE-DCH transmission control processing by the mobile station according to Embodiment 1 of the present invention.
- the TFC restriction step 402 is the TFC restriction process of the transmission setting evaluation unit 203 of the mobile station
- the TFC selection step 403 is the TFC selection process of the transmission speed control unit 204
- the E-TFC restriction step 405 is the mobile station.
- the E-TFC restriction process of the transmission setting evaluation unit 203 corresponds to the E-TFC selection process of the transmission rate control unit 204 in the E-TFC selection step 406.
- Non-Patent Document 3 describes the context of the TFC restriction step, TFC selection step, E— TFC restriction step, and E— TFC selection step. A more detailed transmission control flow will be described with reference to FIG. 5 and subsequent figures, and FIG. 4 explains the overall flow.
- TTI DCH transmission time interval
- This determination includes determining whether DCH is set.
- the ability to secure uplink radio resources for DCH transmission takes priority over the securing of radio resources for E-DCH transmission. If the determination result is YES, the process proceeds to the next step 402.
- step 401 the process related to DCH is omitted and the process proceeds to step 404 (step 401).
- step 402 For each of one or more transmission rates (TFC) of DCH transmission, state is determined and the available transmission rates are limited (step 402).
- TFC transmission rate
- TTI E-DCH transmission timing
- E-TFC transmission rate of E-DCH transmission
- a state is determined and the available transmission rates are limited (step 405).
- one transmission rate (E-TFC) to be used is determined from the available E-DCH transmission rates limited in step 405 (step 406).
- the channel power required for DPDCH and E- DPDCH and the total transmission power are controlled. At this time, if the estimated total transmission power exceeds the maximum total transmission power (Pmax), the total transmission power can be kept below the maximum total transmission power (Pmax) by lowering the gain factor of E-DPDC H only. Find out if you can.
- E—DPDCH gain factor 13 ed, eff can be reduced to zero. If DCH is not set, the gain factor ⁇ ed, eff can be lowered to the set minimum value.
- E-DPDC H gain factor jS ec ff ⁇ If set to zero, E— DPDCH is a non-transmitting force. Even in this case, E— DPCCH is transmitted! If the estimated total transmit power exceeds the maximum total transmit power (Pmax) even after performing E-DPDCH single channel power compression as described above, all channel powers should be additionally compressed (Additional scalling). (Step 407). Details of the total transmission power control will be described later.
- step 409 check whether the transmission time interval (TTI) setting for E-DCH is 10 ms. This is because 10 ms and 2 ms can be set as the TTI for E-DCH. Therefore, if the TTI for E-DCH is 2 ms, the TTI for E-DCH will end before the TTI for DCH ends. Is also the power to end. If the determination result is YES, the process proceeds to the next step 409. On the other hand, if the determination result is NO, the process proceeds to step 404 to perform processing related to E-DCH (step 408). ) o Next, confirm that all data transmission has been completed. If the judgment result is YES, all processing is terminated. On the other hand, if the determination result is NO, the process proceeds to the first step 401 (step 409).
- steps 501 to 504 indicate the operation of the transmission setting evaluation unit 203
- steps 505 to 509 indicate the operations of the transmission rate control unit 204, the modulation unit 206, and the transmission unit 206.
- steps 501 to 504 and steps 505 to 509 are executed in parallel.
- the flow of a series of processes related to one transmission data (packet) is as follows: steps 501, 502, 503, 500, 507, 508, which is consistent with the explanation in Fig. 4! /.
- the channel setting, communication speed setting, and timing used for communication between the radio resource control unit between the fixed station and the mobile station 102 are set.
- the initial settings of various radio resources such as settings are determined.
- the above initial setting process is a known operation defined in the conventional standard (Release 1999 to Release 5).
- the notified various setting information is stored in the radio resource control unit 201.
- the radio resource control unit 201 outputs setting information (CH_config) to the transmission setting evaluation unit 203 in order to control the operation setting of each unit in the mobile station 102.
- the transmission setting evaluation unit 203 first checks whether DCH transmission is set (step 501). Next, the transmission setting evaluation unit 203 estimates or calculates the transmission power margin (step 502).
- FIG. 6 is a flowchart for explaining the details of the processing in step 502 for estimating the transmission power margin.
- the transmission setting evaluation unit 203 inputs total transmission average power information (UE transmit power info) from the transmission power measurement control unit 208. Also, check the actual transmitted physical channel. Furthermore, the various setting maximum total transmission power setting information or the mobile station capability value included in (CH_ C onfig), confirms the total transmit power value capable of transmitting (Pmax) (step 502a).
- the total transmission power (Pdchs) of DPDCH, DPCCH, and HS-DPCCH is estimated (step 502b).
- the estimation (calculation) method for example, from the absolute value of DPCCH power and various gain factors, the following formula ( See 1).
- step 502b is omitted directly from total transmit average power information (UE transmit power), TFC, ⁇ c information, DPDCH and power offset information for HS—DPCCH.
- the total transmission power margin may be obtained.
- the method of reflecting HS-DPCCH transmission to DCH transmission will be supported by additional channel transmission power compression described later. It may be.
- the above expression (2) is an expression for displaying a true value.
- the transmission setting evaluation unit 203 checks whether or not the DCH transmission setting has been completed (or deleted). If YES, the flow ends, and if NO (if the transmission setting is not deleted). Repeats the above process (step 504).
- step 701 when E-DCH is set, if E-DPCCH is not transmitted, it is checked whether the total transmission power does not exceed the maximum total transmission power (Pmax). If YES (that is, Pma X is not exceeded unless E-DPCCH is transmitted), the process proceeds to step 701, and if NO, the process proceeds to the next step 703 (step 702).
- the transmission setting evaluation unit 203 uses the TFC Correspondingly, the internal counter (not shown) is increased tl, and the state of each TFC is evaluated based on the number of slots and state transition conditions specified in the standard (step 703).
- TFC status information or usable TFC subsets are output to the transmission rate control unit 204 (step 704).
- step 704 check whether DCH transmission is completed (ie, DCH setting is completed). If YES (that is, DCH non-transmission), the process flow ends and the process proceeds to step 504. If NO, the process proceeds to step 701 (step 705).
- the mobile station limits the usable TFCs in the TFC selection processing flow for each predetermined unit time interval. This evaluation is performed using the total transmission power margin estimated for all TFCs included in the TFCS. If HS-D PCCH is not transmitted within the measurement time interval, transmission power margin estimation for a certain TFC is performed using the TFC, gain factor, and reference transmission power of each channel (DPDCH, DPCCH).
- the transmission time interval is one slot determined by the timing of the DCH (DPDCH / DPCCH) slot.
- the reference transmission power is the transmission power of each channel in a specific measurement time interval used when a certain transmission power margin is estimated. A part of the measurement time interval!
- the estimated transmission power margin for a certain TFC is the TFC and gain factor of each channel (DPDCH, DPCCH), the gain factor of HS—DPCCH used within the measurement time interval.
- the maximum value and the reference transmission power are used.
- transmission rate control section 204 checks whether DCH transmission is set. If YES, the process proceeds to step 502. If NO, the process is repeated (step 505). Furthermore, when there is data to be transmitted at the next transmission timing, it is checked whether the TFC state update information (TFC state) is received from the transmission setting evaluation unit 203 and updated if there is a change (step 506). Next, the transmission rate control unit 204 selects one TFC to be used for the next transmission interval (TTI) (step 507).
- TTI transmission interval
- step 508 As a selection method, as a known method, there is a method of selecting a TFC so that more data is transmitted using a channel having a higher priority in higher protocol layer channels (DTCH, DCCH). Is possible.
- DCH transmission is performed by DPDCH and DPCCH (step 508). Details of step 508 will be described later together with the E-DCH transmission processing flow.
- it is checked whether or not the transmission of the DCH data is completed. If YES, the process is terminated, and if NO, the process returns to step 505 (step 509).
- the transmission process flow for E-DCH is excerpted from FIG. 4, and the relationship between the transmission process flow and the internal configuration of the mobile station shown in FIG. 2 is described in detail below with reference to FIG.
- Steps 80 1 to 804 in FIG. 8 show operations of the transmission setting evaluation unit 203
- steps 805 to 809 show operations of the transmission rate control unit 204, the modulation unit 206, and the transmission unit 206.
- the processing from Step 801 to Step 804 and the processing from Step 805 to Step 809 are executed in parallel, but the processing related to one E-DCH data (packet) transmission is performed in Steps 801, 802, 803, 806, 807, 808, which is consistent with the explanation in Fig. 4! /.
- the channel setting, communication speed setting, and timing setting used for communication between the radio resource control unit between the fixed station and the mobile station 102 are set.
- the initial settings of various radio resources such as default are determined.
- the notified various setting information is stored in the radio resource control unit 201.
- Radio resource control unit 201 for controlling the operation setting of each part of the transfer Dokyoku 102 outputs set information (CH_ C onfig) to transfer system setting evaluation section 203.
- transmission setting evaluation section 203 checks whether E-DCH transmission is set (step 801).
- the transmission setting evaluation unit 203 estimates or calculates a transmission power margin for E-DCH transmission control (step 802).
- FIG. 9 is a flowchart for explaining the process of estimating the transmission power margin. Details of step 802 are shown in FIG.
- the transmission setting evaluation unit 203 inputs total transmission average power information (UE transmit power info) from the transmission power measurement control unit 208. Also check the channel that was actually transmitted. Channels to be checked include channels from previous releases such as DPDCH.
- Et al is to check settings (CH_ C onfig) maximum total transmit power total transmit power value transmittable from the setting information included in the (Pmax) (step 802a).
- the past message is the current transmission channel.
- the total transmit power (Pdchsec) of DPDCH, DPCCH, HS—DPCCH, and E—DPCC H is estimated (step 802b).
- the total transmission power (Pdchsec) is estimated from the absolute value of DP CCH power and various gain factors using the following formula (3).
- Pchsec DPCCH power X (jS d2 + ⁇ c 2 +; 3 hs 2 + ⁇ ec 2 ) /...
- step 402b may be omitted and the total transmission power margin (Pmargin) may be obtained directly.
- the above equation (4) is an equation for subtracting the true value.
- Step 803 of FIG. 8 the state of the E-TFC used for transmission is evaluated, and the usable E-TFC is restricted (E-TFC Restriction).
- the transmission setting evaluation unit 203 notifies the transmission rate control unit 204 of the status information of each E-TFC (step 803). For example, as E-TFC status information, you can report whether the E-TFC's "status" force is "blocked” or "supported! You can also notify the supported E—TF C!
- FIG. 10 is a flowchart for explaining processing for evaluating the state of E-TFC and limiting usable E-TFC. Details of step 803 of FIG. 8 are shown in FIG.
- the effective channel amplitude coefficient (gain factor ⁇ ed, eff) of E-DPDCH is obtained from the power offset information of the actor ( ⁇ ed) and HARQ profile, and is originally required for transmission corresponding to the E-TFC used.
- E—DPDCH channel power is estimated (step 803a).
- step 803b it is confirmed whether or not the estimated E-DPDCH channel power exceeds the total transmission power margin (Pmargin) at the transmission timing (that is, whether or not there is a margin in transmission power) (step 803b). If YES in step 803b (that is, if the total transmission power margin (Pmargin) has been exceeded), the process proceeds to step 803c and an internal counter (not shown) corresponding to the E-TFC is increased. If NO at step 803b, control proceeds to step 803g (step 803b). Next, after processing step 803c, the state of each E-TFC is evaluated based on the number of slots (or the number of counters) and state transition conditions specified in the standard (steps 803c and 803d).
- E-TFC status information or usable E-TFC sub-sets are output to the transmission rate controller 204 (step 803e).
- check whether the E-DCH transmission is completed ie, E-DCH setting is completed). If YES (that is, E-DCH non-transmission), the process flow ends. If NO, the process proceeds to step 803a (step 803f).
- Pmax maximum total transmission power
- slot current transmission timing
- step 804 is executed to check whether transmission of E-DCH is completed. If transmission has not been completed (NO in step 804), the process returns to step 801. If transmission is complete (YES in step 804), the flow ends.
- the mobile station performs E-TFC selection processing for each predetermined transmission time interval (TTI), and evaluates and selects which E-TFC is usable. This evaluation uses the estimated transmission power margin (that is, the estimated total transmission power and maximum total transmission power (Pmax) of channels other than E-DPDCH) for all E-TFCs included in E-TFCS. Done.
- the transmission power margin estimate for a certain E-TFC is calculated as TFCZE-TFC for each channel (DPDCH, DPCCH, E-DPDCH, E-DPCCH). , Gain factor, and reference transmission power.
- the transmission time interval is, for example, one slot determined by the DCH (DPDCH / DPCCH) slot timing and one E-DCH transmission.
- the reference transmission power is the transmission power of each channel in a specific measurement time interval used when estimating a certain transmission power margin.
- transmission power margin estimation for a certain E-TFC is performed for each channel (DPDCH'DPCCH ' E-DPDCH, E-DPCCH) TFC (E-TFC) and gain factor, HS DPCCH gain factor maximum used in the measurement time interval, and reference transmission power.
- a power offset based on DPCCH channel power may be used instead of the gain factor.
- E-DPDCH alone is non-transmitted (DTX) is considered in the E-TFC restriction, but channel power reduction (that is, gain factor) of E-DPDCH alone is considered. (Reduction) may be considered.
- An embodiment in this case will be described in Embodiment 3 to be described later.
- the transmission rate control unit 204 checks whether E-DCH transmission is set (step 805). Next, it is checked whether or not the E-TFC status update information is received from the transmission setting evaluation unit 204, and if so, the status is updated (step 86). Next, as is well known, the scale taken out from the received E-AGCH and E-RGCH. Based on the result information, update the value of the variable (Serving_Grant) for the internal setting of the mobile station. From this internal variable and the E—TFC status information, use the E- Select one TFC (step 807).
- the selection method is as follows: (1) The internal variable and E TFC state information are strictly applied to select the E-DPDCH channel power (ratio) within the allowable range. (2) The internal variable is strictly The E— TFC status is set by, for example, averaging the past several ⁇ and further correcting the margin. (3) In addition to internal variables and E— TFC status information, the transmission power control command A selection method that takes into account the accumulated value of (TPC), (4) a method that temporarily allows selection exceeding the internal variable, and the like are possible.
- FIG. 11 is a flowchart for explaining an E-TFC selection process (E-TFC selection).
- step 807 of FIG. 8 Details of step 807 of FIG. 8 are shown in FIG. In Fig. 11, first, it is confirmed whether the data is the first transmission or retransmission. If it is the first transmission (ie YES at step 807a), go to step 807b. In the case of retransmission (ie, NO in step 807a), the process proceeds to step 807d (step 807a). In the case of the first transmission, an E-TFC that can be used within the limit of the total transmission power margin is selected (step 807b). In step 807b, E-TFC is selected as follows: (1) Higher-priority QoS settings for each MAC-d flow multiplexed on E-DCH are transmitted at a higher speed.
- the channel used in the protocol or the data with higher priority may be transmitted at higher speed. Which method is used is specified by the standard or the implementation specification of the communication system.
- the effective gain factor ⁇ ed, eff ⁇ of E-DPDCH is calculated from the E-TFC selected in step 807b, and then output to the transmission setting evaluation unit 203 and the modulation unit 205 together with the E-TFC information. To do.
- the gain factor of the other channel is also output (step 807c).
- the E-TFC selection process is not performed, and the process proceeds to step 807c (step 807d).
- the process proceeds to step 808 in FIG.
- E-DCH transmission of E-DCH is performed by E-DPDCH and E-DPCCH.
- Modulation section 204 determines the relative power ratio between channels based on the gain factor of each transmission channel (E-DPDCH, E-DPCCH), and multiplexes and modulates each channel by a known technique. That Thereafter, the modulated signal undergoes frequency conversion and power amplification, and is transmitted from the antenna 207. Details of the transmission process will be described later together with the DCH transmission process (step 808).
- step 809 in FIG. 8 it is confirmed whether or not E-DCH transmission has been completed. If YES (HP is completed), the transmission processing flow is terminated. If NO, go to step 805 and repeat the above steps.
- FIG. 12 is a flowchart for explaining the transmission power control processing of the mobile station. Details of step 407 of FIG. 4 are shown in FIG.
- the transmission power measurement control unit 208 determines the total transmission required for transmission at the next transmission timing (slot or TTI) based on the gain factor of the channel to be actually transmitted and the closed loop transmission power control command (TPC). Estimate power (Estimated UE transmit power). Then, the transmission power measurement control unit 208 checks whether the estimated total transmission power (Estimated UE transmit power) force exceeds the maximum transmission power setting value Pmax (step 407a).
- the transmission power measurement control unit 208 If Pmax is not exceeded (that is, NO), the transmission power measurement control unit 208 outputs transmission power control information (Po_c.nt) to the transmission unit 206, and the transmission process of step 407i is executed. If Pmax is exceeded (ie YES), go to step 407b. Next, the transmission power measurement control unit 208 reduces the value of only the E-DPDCH gain factor i8 ed, eff by the processing steps of steps 407b, 407cl, 407c2, 407dl, 407d2, 407el, 407e2, 407fl, 407f2. Continue to reduce the total transmission power.
- DPDCH is set (ie, YES at step 407b), j8 ed, eff is zero (ie, DTX operation), if DPDCH is set, and if (ie, step) 4 In case of NO in 07b), it can be lowered to the guaranteed minimum value (j8 ed, eff, min) notified to the mobile station. Since the gain factor j8 ed, eff takes a quantized discrete specified value, if the gain factor lowered in step 407cl or 407c2 is an intermediate value between the discrete specified values, the smaller discrete value Set to value. Through the above process, the maximum transmission power setting value Pmax is approached.
- Transmission power measurement control section 208 outputs a gain factor control signal ( ⁇ _cont) to modulation section 205, and corrects the final gain factor setting value of E-DPDCH. Further, measuring transmission power constant control unit 208 outputs transmission power control information (Po_ C ont) to the transmitter 205.
- the transmission power measurement control unit 208 again increases the estimated total transmission power. Check if the transmission power setting value Pmax is exceeded. If not (ie, NO at step 407g), the process proceeds to step 407i and outputs control information (Po_cont) to the transmission unit 205.
- step 407g if Pmax is exceeded (YES in step 407g), the process proceeds to step 407h, and the total transmission power is kept within Pmax while maintaining the relative ratio of each channel transmission power. Additional channel transmission power compression control (Additional scaling or equal scaling). Then, the output reflects this additional power compression control the transmission power control information (Po_ C ont) transmitting unit 2 06, the process proceeds to step 407I (step 407 g).
- the transmitting unit 206 amplifies the modulated signal (Mod_signal) entered control information (Po_cont) on the basis, and outputs it as a radio signal (RF_sign a l).
- the output radio signal (RF_sign a l) is wirelessly transmitted from the antenna 207 to the base station 103 (step 407i).
- the process proceeds to step 408 in FIG.
- the idea of processing from step 407b to 507h is defined in the standard.
- step 408 of FIG. 4 it is checked whether the transmission timing (TTI) of E—DCH is 10 ms. This is because the DTI TTI is 10 ms while the E-DCH TTI is 2 ms. If the E—DCH TTI is 2 ms, the E—DCH TTI ends in the middle of the DCH transmission.
- TTI transmission timing
- FIG. 13, FIG. 14, and FIG. 15 are diagrams for explaining the definition of the mobile station maximum total transmission power (Pmax). It is explanatory drawing which shows typically the transmission power and transmission power margin of each channel. The following describes the Pmax setting value and criteria used for estimating (or calculating) the transmission power margin. 13, 14, and 15, Pmax (Capability or NW) is notified from the maximum transmission power that can be output as the mobile station capability (UE capability) or from the radio resource control unit 301 of the fixed station. Indicates the maximum transmit power setting. The mobile station cannot transmit with a total transmission power exceeding this value during its operation.
- Pmax Capability or NW
- Pmax dS d, ⁇ c) is a Pmax specification when HS-DPCCH, which is a channel for HSDPA, is transmitted and E-DCH is not set (None! / Or transmitted). In 101, the value is lower than Pmax (Capability) and is set to a value. Also, Pmax ( ⁇ ⁇ , ⁇ ⁇ , ⁇ ⁇ ed (, eff), ⁇ ec) is a Pmax specification when E-DCH is set (3 ⁇ 4V or transmitted).
- Pmax Capability or NW
- Pmax ( ⁇ ⁇ ⁇ c) Pmax ( ⁇ ⁇ , ⁇ ⁇ , ⁇ ⁇ ⁇ , ⁇ ed (, ⁇ ⁇ ), ⁇ ec).
- 8 (;)) during transmission of 113-0? 11 may be a specification that does not depend on the gain factor of the corresponding channel. force if the force including the 1 3 ⁇ of the wireless signal (13 ⁇ 4 ⁇ 18 1) to Average Ratio).
- different regulations may be provided for E-DCH channel transmission and non-transmission. These various Pmax settings are notified from the force specified in the standard and the fixed station side.
- P max Capability of Pmax (Capability or NW) and Pmax (j8 d, ⁇ c) are defined in the standard. Also, as the definition of Pmax, the power offset amount of each channel relative to the DPCCH, such as the power offset of the E-DDPCH channel determined from the HARQ profile, may be included as a parameter.
- Pmax (d, ⁇ c, ⁇ hs, ⁇ ed, ⁇ E-DPDCH, ⁇ ec) or Pmax ( ⁇ c, A DPDCH, ⁇ HS- DPCCH, ⁇ E- DPCCH , ⁇ E- DPDC H), etc.
- Pmax (j8 d, ⁇ c, ⁇ hs, ⁇ ed, eff, ⁇ ec), etc. when implicitly included.
- Figures 13, 14, and 15 can also be viewed as the relationship between the combination of channels during transmission and the Pmax specification. In the figure, the vertical axis represents the transmission power, and the horizontal axis represents the radio wave propagation distance from the fixed station.
- the transmission power of each channel represents a relative relationship and does not indicate an absolute size.
- “Additional channel transmission power compression 1 (Additional scaling 1) means that only DPD CHZDPCCH is transmitted !, is in a state! /, And HSDPA is set! HS—DPCCH indicates a region to which additional channel transmission power compression (Ad ditional scaling) processing is applied depending on the state of transmission.
- DPDCH is transmitted at the minimum transmission rate (TFC, min), and the total transmission power is limited to Pmax (Capability or NW) while maintaining the power ratio with other channels (DPCCH).
- Additional channel transmission power compression 2 (Additional scaling 2) means that DPDCHZDPCCHZ HS-DPCCH is transmitted !, it is in a state! /, Or E—DCH is set! DPDCH / E-Indicates an area where additional channel transmission power compression processing (Additional scaling) is applied when DPCCH is transmitted! HS—Because DPCCH is being transmitted, it is limited by Pmax (
- “Additional channel transmission power compression 3” (Additional scaling 3) is an area where additional channel transmission power compression (Additional scaling) is applied when DPDCH / DPCCH / HS—DPCCH / E—DPCCH is being transmitted. Indicates.
- E-DPDCH is transmitted at the transmission rate determined by the transmission rate control unit, but the gain factor can be reduced to zero, so it is not transmitted (DT X). Since the E-DCH channel is set, it is limited by Pmax (j8d, ⁇ c, ⁇ hs, ⁇ ed (, eff), ⁇ ec).
- FIG. 13 corresponds to the case where DCH transmission, E-DCH transmission, and HS-DPCCH transmission are set.
- TPC control the received power at the receiving antenna of the fixed station
- E—DCH transmission has priority over DCH transmission, and because the E—DCH channel is transmitted within the range of the transmission power margin, only the transmission power of the E-DCH channel is increased as the distance from the fixed station increases. Has been reduced.
- the transmission speed (E-TFC) of the selected E—DCH decreases when the E—TFC is selected. Means.
- additional channel power compression 3 (Additional scaling 3) is applied.
- the E-TFC is selected so as to be within the range of the transmission power margin, so that the additional channel power compression operation does not ideally occur.
- the state at the time of E-TFC selection and the actual state at the start of transmission may be different due to the influence of measurement delay, etc. In that case, additional channel power compression operation May be performed.
- slot-by-slot transmission power control (so-called TPC control) is performed, so the total required transmission power may exceed the maximum transmission power regulation value of the mobile station, and additional channels Transmission power compression occurs in principle.
- TPC control slot-by-slot transmission power control
- the mobile station operation may be controlled by setting on the fixed station side whether to perform additional channel power compression operation or whether to perform data compression for additional channel, and notifying the mobile station by RRC signaling or the like.
- Area D is an area in which channels other than those for E-DCH are transmitted and HS-DP CCH is not transmitted. In this area, HS-DPCCH is not transmitted, so Pmax (Capability or NW) is applied as the Pmax specification. Since the minimum speed (TFC, min) is set for DCH, additional channel power compression operation 1 (Additional scaling 1 in the figure) is applied when Pmax (Capability or NW) is reached.
- the transmission power margin value for E-DCH data transmission (that is, E-DPCDCH) transmission is obtained by subtracting E-DPDCH channel power from the above-mentioned Pmax! DPCCH / HS- DPCCH / E- DPCCH) Estimated as a value obtained by subtracting the total power (calculated) Is done.
- E-DPDCH channel amplitude (gain factor j8 ed (, eff)) can be larger than the value of DPDCH channel amplitude (gain factor j8 d).
- the characteristics of the E-DPDCH signal waveform become dominant, and the PAR (Peak to Average Ratio) characteristic power may be smaller than in the case of a conventional channel-only configuration. Therefore, in actual regulations, Pmax (j8d, j8c, j8hs, j8ed (, eff), ⁇ ec)) may be larger than other Pmax regulations.
- Pmax j8d, j8c, j8hs, j8ed (, eff), ⁇ ec
- Pmax (j8d, ⁇ c, ⁇ hs, ⁇ ed (, eff), ⁇ ec), which is the basis for estimating the E-DCH transmission power margin, shows a constant value. You can set different values for each area and multiple conditions.
- FIG. 14 The case of FIG. 14 will be described below.
- the symbols and terms in the figure are the same as those in FIG. Figure 14 corresponds to the case where E-DCH transmission and HS-DPCCH transmission are set, and DCH transmission is not set.
- the difference from Fig. 13 is that DPDCH is not set (not transmitted), so the guaranteed minimum value (j8 ed, eff, min) is set for the gain factor of E—DPDCH, and the additional channel compression in region B 3
- the E DPDCH is also compressed while maintaining the relative power ratio with other channels.
- FIG. 15 The case of FIG. 15 will be described below.
- DCH transmission and HS—DPCCH transmission are set, and E DCH transmission corresponds to the case of non-setting (non-transmission).
- This is the same setting as the conventional technology.
- the difference from Figs. 13 and 14 is that E-DCH is not set (not transmitted), so that additional channel compression 3 in area B (Additional scalling 3 in the figure) does not occur.
- the Pmax specification for estimating DC H transmission power margin is selected from V ⁇ , Pmax (Capability or NW) or Pmax ( ⁇ d, ⁇ c) according to the presence of HS-DPCCH transmission.
- MPR Maximum Power Reduction
- Pmax Capability
- Ncodes the number of parallel transmission channels
- the details of transmission control such as transmission rate selection when an E-DCH channel is added, and the method for reducing the influence on the conventional channel, etc. are defined. Therefore, if the transmission control operation of the mobile station is unique and the operation of the communication system can be made more efficient, there is a significant effect.
- the margin value of the total transmission power is expressed in the dimension of power (or power ratio).
- a method for notifying a scheduling result with a fixed local power (1) Gain factor (dB or true value expression), (2) Gain factor ratio (iS ed / iS c, ⁇ ed, eff / ⁇ c etc., or dB or true value expression), (3) Power
- a ratio (dB or true value expression)
- the transmission power margin may be specified by a similar expression. This has the effect that it is not necessary to match the dimensions when evaluating the E-TFC state, and control of the mobile station is simplified.
- the time timing or time interval that defines the transmission power margin includes (1) the margin value of the last slot of the TTI immediately before the TTI that is actually transmitted, (2) Consider the average margin value in all slots of TTI before the actual TTI to be transmitted, (3) average margin values in several slots before the actual TTI to be transmitted, and (4) closed-loop transmission power control. Considering the estimated value in the first slot of the TTI to be actually transmitted, (5) Estimated value in several slots of the actually transmitted TTI in consideration of the closed-loop transmission power control. In the case of (1) above, the state of transmission power margin immediately before transmission can be taken into account, so uplink radio resources can be used more efficiently.
- E — TFC is also updated at the timing of TTI that matches the slot timing of DCH (DPDCH.DPCCH).
- Averaging methods include (1) arithmetic average, (2) weighted average, and (3) geometric average, which are selected or specified in the standard in the mobile station implementation.
- MPR maximum power reduction
- Pmax Capability
- SF min minimum spreading factor
- Ncodes maximum parallel E—DPDCH transmission number
- gain factor may be combined as a parameter.
- the details of the transmission control when the E-DCH channel is added are specified, so that the transmission control operation of the mobile station becomes unique and the operation of the communication system. Is effective. Note that the embodiment described above may be combined with the first embodiment.
- FIG. 18 is a flowchart for explaining E-TFC restriction processing for evaluating E-TFC status and restricting usable E-TFC.
- FIG. 18 explains step 803 (E—TFC restriction process) in FIG. 8 described in the first embodiment in more detail, and includes steps common to the flowchart shown in FIG. . Therefore, in FIG. 18, the same steps as those shown in FIG. 10 mean the same or corresponding processes, and the description thereof will be omitted.
- E—Reflects the TFC limit step 803hl.
- the details of the transmission control when the E-DCH channel is added are specified, so that the transmission control operation of the mobile station becomes unique. There is an effect that the operation can be efficiently performed.
- the state where the E-DPDCH transmission power margin is insufficient can be reflected in the E-TFC restriction, and can therefore be reflected in the E-TFC selection. As a result, the opportunity to select E-TFCs with insufficient transmission power is reduced, which has the effect of enabling more appropriate and efficient transmission control.
- a specific E—DPD CH channel amplitude value was exceeded (or interrupted), (2) A specific E—DPDCH channel Various conditions can be set, such as the force that falls within the range of the channel amplitude value, and (3) the force that does not require E-DPCCH to be transmitted and only the E-DPDCH channel amplitude ( ⁇ ed) needs to be compressed (scaling). It is.
- a specific value may also be specified as the setting information notification (RRC_signaling) on the fixed station side (the radio resource control 301). This has the effect of enabling flexible radio resource control and transmission control considering the entire communication system. Note that this embodiment may be combined with the first and second embodiments.
- the E-DPDCH channel transmission power may be reflected in the E-TFC limit by weighting the count according to the degree of compression of the transmission power.
- FIG. 19 is a flowchart for explaining the E-TFC restriction process for evaluating the E-TFC status and evaluating and restricting the usable E-TFC.
- FIG. 19 explains step 803 of FIG. 8 described in the first embodiment in more detail, and includes steps common to the flowchart shown in FIG. Accordingly, in FIG. 19, the same steps as those shown in FIG. 10 mean the same or corresponding processes, and the description thereof will be omitted.
- the average number of retransmissions of past and present E-DPDCH packet data is counted in the transmission power control step (for example, step 407 in FIG. 4 described in the first embodiment).
- the determination criterion is based on whether the average number of retransmissions exceeds a predetermined number (Nretrans).
- the increase in the number of retransmissions is obtained from the E-TFC used and is necessary for transmission.
- E- DPDCH channel power is compared to (1) the total transmission power margin of the mobile station at the time of initial transmission and retransmission.
- E-DPDCH channel power that can be used for retransmission when the value of the scheduling result from the fixed station is small, and thus the transmission power is insufficient. Therefore, in both cases (1) and (2), where the number of retransmissions is likely to increase, the available channel transmission power for the E-TFC is insufficient.
- the opportunity to select E-TF C with insufficient transmission power is reduced, which makes it possible to perform more appropriate and efficient transmission control. effective.
- step 803g a force that provides a criterion for determining whether the average number of retransmissions exceeds a predetermined number (Nretrans) (1) If YES in step 803b (2) For example, (a) Adopt the more of both counts, or (b) E-TFC status (supported in each case) (3) Multiple predetermined powers, such as counting by the transmission power margin (margin) and counting by the number of retransmissions, determine the E-TFC status.
- Nretrans a force that provides a criterion for determining whether the average number of retransmissions exceeds a predetermined number (Nretrans) (1) If YES in step 803b (2) For example, (a) Adopt the more of both counts, or (b) E-TFC status (supported in each case) (3) Multiple predetermined powers, such as counting by the transmission power margin (margin) and counting by the number of retransmissions, determine the E-TFC status.
- Various processing flows can be specified, such as determining the E-TFC state by weighting the reference number of times and determining the state of E- TFC, etc. Also, even if the above average number of retransmissions (Nretrans) is fixed in the standard, Notification of setting information (RRC) from the fixed station side (Radio Resource Control 301) _sig na lling) and may strainer ⁇ to specified. Fixed station force may have to notify, there is an effect that flexible radio resource control and the transmission control considering the entire communication system can be performed. Note that this embodiment may be combined with Embodiments 1 to 3 described above.
- FIG. 20 is a diagram showing a transmission control flow of the mobile station according to Embodiment 5 of the present invention.
- the step different from FIG. 4 described in the first embodiment is 407a, and the description of the processing step similar to FIG. 4 is omitted, and only the different point will be described.
- a process for shifting from step 407a for performing transmission power control to E-TFC selection step 406 is added (indicated by a thick arrow in the figure).
- FIG. 21 shows the detailed flow of step 407a in FIG. Unlike FIG.
- step 407g that is, when the maximum transmission power Pmax is exceeded even if channel transmission power compression of only E—DPDCH is performed
- additional channel compression Rather than performing Equal scaling
- the specified retransmission cycle (HARQ RTT: HARQ Round
- HARQ RTT HARQ Round
- the transmission cannot be delayed because it is necessary to transmit according to (Trip Time), but the E — TFC selection is performed in the case of the initial transmission, so the transmission timing is slightly delayed within the range that can ensure communication quality (QoS). Is acceptable.
- FIG. 22 is a block diagram showing the configuration of the mobile station according to Embodiment 6 of the present invention.
- the mobile station shown in FIG. 22 is that the maximum transmission power control information (Pmax info) is notified from the modulation unit 205 to the transmission rate control unit 204 in the media access control unit 202.
- the configuration is different. From the modulation unit 205 to the transmission rate control unit 204, a maximum transmission power control information (Pmax info) may be notified using a physical signal line, or a primitive that is a 3GPP standard protocol inter-layer communication method. You may notify using ⁇ .
- the maximum transmission power control information is as follows: (1) Whether E-DPDCH only channel power compression is performed, (2) E-DPDCH only channel power compression result E-DP DCH It is possible to include information indicating whether or not non-transmission (DTX) has been performed, and (3) additional channel compression (additional scalling or equal scalling).
- E— TFC Feedback can be provided to the limit processing or E-TFC selection processing, which can reduce the occurrence of retransmissions and channel power shortages, resulting in efficient transmission control.
- the transmission control operation of the mobile station is unique, and the operation of the communication system can be efficiently performed.
- the configuration of the mobile station shown in FIG. 22 can also be used to implement the transmission control flow shown in the fifth embodiment.
- the maximum transmission power information (Pmax info) is notified from the modulation unit 205, but the same effect can be obtained by notification from the transmission power measurement control unit 208. It is done. Also, combine this embodiment with Embodiments 1 to 5 above.
- FIG. 23 is a flowchart for explaining transmission power control processing according to Embodiment 7 of the present invention.
- FIG. 23 explains the transmission power control process in step 407 shown in FIG. 4 in more detail, and includes steps common to the flowchart shown in FIG. Therefore, in FIG. 23, the same steps as those shown in FIG. 12 mean the same or corresponding processes, and the description thereof will be omitted.
- the mobile station transmits large-capacity packet data using E-DPDCH, and transmits control data using E-DPCCH.
- E-DPDCH packet data reception determination result on the fixed station side
- NACK NACK determination
- the mobile station needs to retransmit the data. Therefore, it is wasteful to send only E—DPC CH.
- the media access control unit 202 easily reaches the maximum number of transmissions, and retransmission control in a higher protocol layer works. In general, the higher the layer, the greater the problem because the delay time increases for retransmission.
- E-DP DCH when E-DP DCH cannot be transmitted, E-DPCCH transmission is also stopped. Therefore, it is applied especially at the initial transmission to reduce waste of radio resources due to unnecessary E-DPCCH transmission. There is an effect that can be done. Since j8 ed (, efi) can be set to zero when DCH (DPDCH) is not set, it may be applied only in that case. [0100] As described above, in this embodiment, the details of the transmission control when the E-DCH channel is added are specified, so that the transmission control operation of the mobile station becomes unique and the communication system There is an effect that the operation can be efficiently performed. Further, the present embodiment may be combined with the first to sixth embodiments.
- FIG. 24 is a flow chart showing the transmission control process of the mobile station according to Embodiment 8 of the present invention.
- FIG. 24 is different from FIG. 4 in that step 410 and step 411 are included, and other steps are common.
- an index (TFCI) for identifying TFC is used.
- TFCI index for identifying TFC
- step 410 it is checked whether DCH data transmission is not set and E-DCH data transmission is set. If YES in step 410 (that is, DCH data transmission is not set and E-DCH data transmission is set), the processing of step 411 is executed to set the DPCCH channel format that does not transmit TFCI.
- Step 404 is executed.
- the DPCCH is a channel for transmitting a pilot signal for physical radio connection maintenance and radio demodulation on the receiving side, data transmission is not performed using the DPDCH, but the DPCCH connection is maintained even at times. There must be. Similarly, even when DCH is not transmitted, the same applies when E-DCH is transmitted. However, if DCH transmission is not set, it is not necessary to transmit TFC information (TFCI). When DCH data transmission is not set and E—DCH data transmission is set, the above problem can be avoided by transmitting a DPCCH channel format with no TFCI transmission.
- the channel format for which TFCI is not transmitted may be specified for a new channel format, or the channel format for which TFCI is not transmitted may be specified in the conventional format.
- the DPCCH transmission becomes discontinuous, and the reception system of the fixed station, other mobile stations, hearing aids, etc. demodulate the envelope of power fluctuations, so-called hearing aid. Problems Will cause. In this case, place a pilot at the TFCI position of the channel format. If the pilot is placed at the TFCI position of the channel format, it is said that DPCCH reception is possible even in the conventional standard base station prior to Release 5 (ie, backward compatibility is ensured). effective.
- the present invention is applicable to a radio communication system, particularly a mobile communication device including a mobile phone compliant with the 3GPP standard.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007539723A JPWO2007043098A1 (ja) | 2005-09-30 | 2005-09-30 | 移動局及び通信方法 |
US12/063,326 US20090154403A1 (en) | 2005-09-30 | 2005-09-30 | Mobile station and communications method |
EP05787739A EP1931160A1 (en) | 2005-09-30 | 2005-09-30 | Mobile station and communications method |
PCT/JP2005/018096 WO2007043098A1 (ja) | 2005-09-30 | 2005-09-30 | 移動局及び通信方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/018096 WO2007043098A1 (ja) | 2005-09-30 | 2005-09-30 | 移動局及び通信方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007043098A1 WO2007043098A1 (ja) | 2007-04-19 |
WO2007043098A9 true WO2007043098A9 (ja) | 2007-05-31 |
Family
ID=37942371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018096 WO2007043098A1 (ja) | 2005-09-30 | 2005-09-30 | 移動局及び通信方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090154403A1 (ja) |
EP (1) | EP1931160A1 (ja) |
JP (1) | JPWO2007043098A1 (ja) |
WO (1) | WO2007043098A1 (ja) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7761111B2 (en) * | 2004-06-11 | 2010-07-20 | Nec Corporation | Transport format combination selecting method, wireless communication system, and mobile station |
KR100918761B1 (ko) * | 2005-01-06 | 2009-09-24 | 삼성전자주식회사 | 무선통신 시스템에서 상향링크 서비스를 위한 이득인자 설정 방법 |
JP4835951B2 (ja) | 2005-11-04 | 2011-12-14 | 日本電気株式会社 | 無線通信システムとその送信電力制御方法 |
US7801547B2 (en) * | 2005-12-22 | 2010-09-21 | Telefonaktiebolaget L M Ericsson (Publ) | System and method for determining downlink signaling power in a radio communication network |
JP4721298B2 (ja) * | 2006-10-30 | 2011-07-13 | アンリツ株式会社 | 移動通信端末の送信電力制御方法及び移動通信端末の送信電力制御装置 |
TW201251496A (en) * | 2006-12-28 | 2012-12-16 | Interdigital Tech Corp | Efficient uplink operation with high instantaneous data rates |
US8090380B2 (en) | 2007-02-12 | 2012-01-03 | Research In Motion Limited | Method and apparatus for radio resource control profile creation in a UMTS network |
US20090005102A1 (en) * | 2007-06-30 | 2009-01-01 | Suman Das | Method and Apparatus for Dynamically Adjusting Base Station Transmit Power |
US20090086698A1 (en) * | 2007-09-27 | 2009-04-02 | Interdigital Patent Holdings, Inc. | Method and apparatus for managing a collision in common e-dch transmissions |
US8169973B2 (en) * | 2007-12-20 | 2012-05-01 | Telefonaktiebolaget L M Ericsson (Publ) | Power efficient enhanced uplink transmission |
JP5051457B2 (ja) * | 2008-02-28 | 2012-10-17 | 富士通株式会社 | 無線基地局装置、無線通信方法、およびプログラム |
WO2009108088A1 (en) * | 2008-02-29 | 2009-09-03 | Telefonaktiebogalet Lm Ericsson (Publ) | Signalling gain factors in a communication network system |
US8467310B2 (en) * | 2008-03-03 | 2013-06-18 | Nec Corporation | Base transceiver station and method of determining transmit power |
CA2737887C (en) | 2008-09-18 | 2017-05-16 | Telefonaktiebolaget L M Ericsson (Publ) | A method and arrangement for determining a minimum transmit power gain factor for an enhanced uplink data communication |
US9883511B1 (en) * | 2012-12-05 | 2018-01-30 | Origin Wireless, Inc. | Waveform design for time-reversal systems |
JP5151893B2 (ja) * | 2008-10-15 | 2013-02-27 | 日本電気株式会社 | 端末装置およびその送信出力制御方法ならびにディジタル信号処理装置 |
US8358614B2 (en) * | 2008-10-31 | 2013-01-22 | Interdigital Patent Holdings, Inc. | Method and apparatus for handling uplink transmissions using multiple uplink carriers |
US8331975B2 (en) * | 2008-12-03 | 2012-12-11 | Interdigital Patent Holdings, Inc. | Uplink power control for distributed wireless communication |
KR101697596B1 (ko) | 2009-01-29 | 2017-01-18 | 엘지전자 주식회사 | 전송 전력을 제어하는 방법 및 이를 위한 장치 |
KR101674940B1 (ko) | 2009-01-29 | 2016-11-10 | 엘지전자 주식회사 | 전송 전력을 제어하는 방법 및 이를 위한 장치 |
US8774164B2 (en) * | 2009-02-25 | 2014-07-08 | At&T Mobility Ii Llc | Adaptive R99 and HS PS (high speed packet-switched) link diversity for coverage and capacity enhancement of circuit-switched calls |
US9288808B2 (en) * | 2009-08-14 | 2016-03-15 | Blackberry Limited | Method and apparatus for power sharing carrier set for carrier aggregation |
US8401585B2 (en) * | 2009-09-03 | 2013-03-19 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for uplink power control in a wireless communication network |
US8509763B2 (en) * | 2009-11-06 | 2013-08-13 | Qualcomm Incorporated | Methods and apparatus for evaluating base station efficiency in a network |
JP5367166B2 (ja) * | 2010-05-14 | 2013-12-11 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信端末 |
JP2012004887A (ja) * | 2010-06-17 | 2012-01-05 | Panasonic Corp | 通信端末装置及び再送方法 |
US9084207B2 (en) | 2010-11-08 | 2015-07-14 | Qualcomm Incorporated | System and method for uplink multiple input multiple output transmission |
US9007888B2 (en) * | 2010-11-08 | 2015-04-14 | Qualcomm Incorporated | System and method for uplink multiple input multiple output transmission |
US8953713B2 (en) | 2010-11-08 | 2015-02-10 | Qualcomm Incorporated | System and method for uplink multiple input multiple output transmission |
US9380490B2 (en) | 2010-11-08 | 2016-06-28 | Qualcomm Incorporated | System and method for uplink multiple input multiple output transmission |
US9055604B2 (en) | 2012-02-08 | 2015-06-09 | Qualcomm Incorporated | Method and apparatus for E-TFC selection for uplink MIMO communication |
US9516609B2 (en) | 2010-11-08 | 2016-12-06 | Qualcomm Incorporated | System and method for uplink multiple input multiple output transmission |
CN102026362B (zh) * | 2010-12-10 | 2013-06-26 | 大唐移动通信设备有限公司 | 一种调整赋形加权系数的方法及装置 |
US9185660B2 (en) * | 2011-04-21 | 2015-11-10 | Mediatek Inc. | Power adaptation apparatus and power adaptation method for controlling uplink/downlink power |
US8504005B2 (en) * | 2011-06-06 | 2013-08-06 | At&T Intellectual Property I, L.P. | Controlling and mitigating dropped communications |
EP2557870B1 (en) * | 2011-08-10 | 2020-07-08 | Alcatel Lucent | Configuring transmissions |
US9717057B2 (en) * | 2011-11-04 | 2017-07-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Uplink congestion control |
KR20130104537A (ko) * | 2012-03-14 | 2013-09-25 | 삼성전자주식회사 | 무선 통신 시스템에서 단말의 상향링크 송신 전력을 효율적으로 제어하는 방법 및 장치 |
WO2014070081A1 (en) * | 2012-11-02 | 2014-05-08 | Telefonaktiebolaget L M Ericsson (Publ) | Method and device of performing multi-radio access bearer power scaling |
US9215656B2 (en) * | 2013-06-14 | 2015-12-15 | Blackberry Limited | Self-contained data transfer channel |
CN105704181A (zh) * | 2014-11-26 | 2016-06-22 | 国际商业机器公司 | 管理移动设备中的任务的方法和装置 |
CN105993198B (zh) * | 2015-01-16 | 2019-07-12 | 华为技术有限公司 | 用户设备发射功率的控制方法及装置 |
US10149255B2 (en) * | 2015-05-01 | 2018-12-04 | Qualcomm Incorporated | Low latency uplink power control |
US10594434B2 (en) * | 2016-03-11 | 2020-03-17 | Nokia Technologies Oy | Feedback signaling management |
US10560897B2 (en) * | 2018-05-30 | 2020-02-11 | Apple Inc. | Transmission slot blanking for power optimization |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1437912B1 (en) | 2003-01-04 | 2010-09-08 | Samsung Electronics Co., Ltd. | Method for determining data rate of user equipment supporting EUDCH service |
US7493132B2 (en) * | 2003-02-14 | 2009-02-17 | Qualcomm Incorporated | System and method for uplink rate selection |
JP3847737B2 (ja) * | 2003-08-12 | 2006-11-22 | 松下電器産業株式会社 | 通信端末装置及び送信電力制御方法 |
US7215655B2 (en) * | 2004-01-09 | 2007-05-08 | Interdigital Technology Corporation | Transport format combination selection in a wireless transmit/receive unit |
JP4299270B2 (ja) * | 2004-06-09 | 2009-07-22 | 三星電子株式会社 | 向上した上りリンクサービスを支援する移動通信システムにおけるデータ送信のための方法及び装置 |
-
2005
- 2005-09-30 JP JP2007539723A patent/JPWO2007043098A1/ja not_active Withdrawn
- 2005-09-30 WO PCT/JP2005/018096 patent/WO2007043098A1/ja active Application Filing
- 2005-09-30 EP EP05787739A patent/EP1931160A1/en not_active Withdrawn
- 2005-09-30 US US12/063,326 patent/US20090154403A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2007043098A1 (ja) | 2007-04-19 |
EP1931160A1 (en) | 2008-06-11 |
US20090154403A1 (en) | 2009-06-18 |
JPWO2007043098A1 (ja) | 2009-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2007043098A9 (ja) | 移動局及び通信方法 | |
KR100996886B1 (ko) | 송신 제어 방법, 이동국 및 통신시스템 | |
AU2005336604B2 (en) | Mobile station, fixed station, communication system and communication method | |
EP1912345B1 (en) | Method of adjusting transmission power using the uplink power headroom to calculate the uplink path loss | |
US8280425B2 (en) | Wireless transmitter configuration | |
KR100937370B1 (ko) | 송신 전력 제어 방법 및 이동국 | |
JPWO2005125259A1 (ja) | 伝送速度制御方法、送信電力制御方法、送信電力比制御方法、移動通信システム、移動局及び無線基地局 | |
WO2005076500A1 (en) | An apparatus and a method for distributing a transmission power in a cellular communications network | |
KR20030068998A (ko) | 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서상향 파워 오프셋 정보를 송수신하는 장치 및 방법 | |
WO2006104211A1 (ja) | 送信電力制御方法及び移動局 | |
JP4343247B2 (ja) | 送信電力制御方法、移動局、固定局および通信システム | |
JP4882049B2 (ja) | 通信方法 | |
Toskala et al. | High‐Speed Downlink Packet Access |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2007539723 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12063326 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005787739 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580051736.0 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWP | Wipo information: published in national office |
Ref document number: 2005787739 Country of ref document: EP |