WO2006135064A1 - チャネル伝送装置及びチャネル伝送方法 - Google Patents
チャネル伝送装置及びチャネル伝送方法 Download PDFInfo
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- WO2006135064A1 WO2006135064A1 PCT/JP2006/312176 JP2006312176W WO2006135064A1 WO 2006135064 A1 WO2006135064 A1 WO 2006135064A1 JP 2006312176 W JP2006312176 W JP 2006312176W WO 2006135064 A1 WO2006135064 A1 WO 2006135064A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- the present invention relates to a method for transmitting a logical channel on one radio physical channel, and more particularly, to a technique for transmitting a logical channel before establishing a connection.
- Non-Patent Document 1 In a W-CDMA (Wideband-Code Division Multiple Access) type mobile communication system, as shown in Non-Patent Document 1, various correspondence relationships between channels, connection sequences, and radio physical channels are defined. . Correspondence between channels includes logical channel (Logical Channel), which is a functional channel defined between RLC and MAC, and transport channel, which is a functional channel defined between MAC layer and physical layer. Three types of channel hierarchies are defined: (Transport Channel) and the physical channel (Physical Channel), which is a functional channel defined in the physical layer. A logical channel has a corresponding relationship with a transport channel, and a transport channel has a corresponding relationship with a physical channel.
- logical Channel has a corresponding relationship with a transport channel
- a transport channel has a corresponding relationship with a physical channel.
- a plurality of logical channels are arranged (mapped) on a plurality of radio physical channels via a plurality of transport channels.
- Figure 1 shows the correspondence between conventional channels.
- the connection sequence is RRC connection or the identification of the mobile station (UE) until the connection is established is based on the identifier (TMSI) in L3 (RRC). Made. Therefore, since there is no individual correspondence in L2 until the RRC connection is established, the logical channel is transmitted on CCCH. In addition, since the UE after the RRC connection is established is identified by the L2 identifier (C1 or H-RNTI), there is an individual correspondence at the L2 level, and the logical channel is changed to DCCH.
- TMSI identifier
- RRC L3
- the RRC connection request which is a control signal when establishing an RRC connection
- the radio physical channel is PRACH (RACH).
- RRC connection setup is also transmitted on CCCH
- the radio physical channel is SCCPCH (FAC H). Since the RRC connection is established in subsequent communications (sidnering), the logical channel is transmitted using DCCH, and the radio physical channel is transmitted using DPCH (DCCH).
- DCCH DPCH
- the transmission path prepared when setting up the RRC connection is SDCCH, and a U-plane (plane) transmission channel should be prepared.
- the radio channel is changed by RRC signaling when setting up the RRC connection (when setting up the RRC connection).
- the radio physical channel for U-plane transmission is set in the radio bearer setup (Radio Bearer Setup). In other words, channels are added by RRC signaling.
- the uplink access method before the establishment of the dedicated channel is performed using a preamble, and the preamble is configured with a length of 4096 chips obtained by repeating a 16-chip signature 256 times, and is performed while the preamble is rammed.
- the base station (BTS) returns a positive response (Ack) and a Z non-acknowledgement (Nack) using AICH when the preamplifier is received.
- Ack positive response
- Nack Z non-acknowledgement
- data is transmitted (on PRACH) after a slot pre-defined by the system (usually 3 to 4 slots). Traffic information is not included in the preamble! /.
- HS—PDSCH shared channel
- the logical channel after the DCRC or DTCH RRC connection is established is transmitted on this channel.
- HS-SCCH a common control channel for notifying that data on HS-PDSCH has arrived, is also prepared.
- the UE recognizes that the data addressed to itself has arrived from the data masked with the L2 identifier.
- HS-SCCH can receive up to 4 codes at each UE, but the HS-SCCH code used in the cell is notified to UE by RRC signaling. The code is included in the radio bearer setup / reconfiguration.
- HS—HARQ and AMC technologies are used on PDSCH
- Non-Patent Document 1 Supervised by Keiji Tachikawa, “W—CDMA mobile communication system”, pp. 103-157 Disclosure of invention
- a logical channel is associated with the transport channel
- the transport channel is associated with the physical channel.
- Multiple logical channels are assigned to multiple radio physical channels via transport channels. Basically, the radio physical channel is determined according to the characteristics of the logical channel! For example, CCCH is transmitted on P RACH and SCCPCH, and DCCH and DTCH are transmitted on DPCH and HS-PDSCH.
- CCCH logical channel
- SCCPCH SCCPCH
- DCCH is transmitted on DPCH in signaling after RRC connection is established.
- the radio physical channel is defined according to the characteristics of the logical channel, and the radio physical channel is changed by RRC signaling. For this reason, procedures and messages for changing the radio physical channel are required. There are also problems such as an increase in the protocol state for channel transition, control delay, and data loss.
- W-CAMA since a logical channel (bearer) for U-plane transmission is added after signaling, L3 signaling needs to be used there as well.
- the UE While the UE is identified by the L3 identifier before the RRC connection is established, the UE is identified by the L2 signaling on the radio physical control channel associated with the current shared channel, and the identification method is different. .
- HS-DSCH transport channel
- HS-PDSCH physical channel
- other transport channels for example, PCH, BCH, etc.
- HS—DSCH has only DCCH and DTCH It is possible to map (mapping), and other logical channels cannot map the reason why it is difficult to identify the UE at the L2 level.
- An object of the present invention is to provide a channel transmission system in which a sequential transmission method is changed according to characteristics of a logical channel when a plurality of functional channels (logical channels) are transmitted on a common radio physical channel. It is to provide a channel transmission apparatus and a channel transmission method for efficiently transmitting CCCH used in the RRC connection establishment process on a radio physical channel (shear channel).
- a channel transmission apparatus that communicates with a terminal (UE) in a radio access network (RAN) is used.
- the radio physical channel can be used in common for a plurality of logical channels, and a plurality of radio physical control channels are prepared in association with the radio physical channel, and can be used in common for the radio physical control channel.
- Common control channels are included.
- This apparatus comprises logical channel type determining means for determining the type of logical channel, and channel transmission means for transmitting the UE identifier on the radio physical control channel according to the logical channel type. The UE identification method on the radio physical control channel is changed according to the type of logical channel.
- the sequential transmission method is changed according to the characteristics of the logical channels.
- the CCCH used in the RRC connection establishment process can be efficiently transmitted on the radio physical channel.
- FIG. 1 is a diagram showing the correspondence between channels.
- FIG. 2 is a diagram showing a conventional connection sequence.
- FIG. 3 shows a communication system
- FIG. 4 is a diagram showing the correspondence between channels according to an embodiment of the present invention.
- FIG. 5 is a diagram showing a connection sequence according to an embodiment of the present invention.
- FIG. 6 shows a functional block diagram of an RNC according to an embodiment of the present invention.
- FIG. 7 shows a functional block diagram of a BTS according to an embodiment of the present invention.
- FIG. 8 shows a functional block diagram of a UE according to an embodiment of the present invention.
- FIG. 9 is a flowchart showing an operation example of RNC according to one embodiment of the present invention.
- FIG. 10 is a flowchart showing an operation example of BTS according to an embodiment of the present invention.
- FIG. 11 is a flowchart showing an exemplary operation of a UE according to an embodiment of the present invention.
- FIG. 12 is a diagram showing a correspondence relationship of each channel according to an embodiment of the present invention.
- FIG. 13 is a diagram showing a connection sequence according to an embodiment of the present invention.
- FIG. 14 is a flowchart showing an operation example of BTS according to an embodiment of the present invention.
- FIG. 15 is a flowchart showing an operation example of a UE according to an embodiment of the present invention.
- a radio connection is established between a radio access network (RAN) and a terminal (UE), and a plurality of logical channels used for data transmission are transmitted on the radio physical channel.
- RAN radio access network
- UE terminal
- a plurality of logical channels used for data transmission are transmitted on the radio physical channel.
- a logical channel for control and a logical channel for data communication are prepared.
- a radio physical channel that can be used in common with the logical channel is prepared, and the logical channel has a corresponding relationship with only one type of radio physical channel, and further, the logical channel is transmitted along with the radio physical channel.
- a plurality of common radio physical control channels are prepared.
- the transmission method on the radio physical control channel is sequentially changed according to the logical channel. That is, the UE identification method in the radio physical control channel is changed according to the type of the logical channel.
- the UE is identified on the radio physical control channel only after the dedicated channel is set in the L2 layer, and there is only one UE identification method on the radio
- the radio physical channel is used in common for at least the logical channel of the common channel and the logical channel of the dedicated channel.
- a common channel is a common channel for unspecified users.
- a dedicated channel is a channel for a specific user.
- the radio physical channel may be commonly used for the logical channel of the broadcast cast channel in addition to the logical channel of the common channel and the dedicated channel.
- the radio physical channel may be commonly used for the logical channel of the paging channel in addition to the logical channel of the common channel and the dedicated channel.
- all logical channels may be transmitted on one type of wireless physical channel (shared channel).
- signaling is performed by changing a transmission method (UE identification method) according to a logical channel type (CCCH) on a commonly used physical control channel associated with a shared channel.
- Power U The connection sequence process up to the transmission of plane data can be realized on the same radio physical channel. Since multiple logical channels are arranged on one radio physical channel, the channel configuration can be simplified. In addition, there is no need to define multiple protocol states, test operations can be reduced, channel transition procedures using L3 signaling can be omitted, and L3 signaling message length can be reduced. In addition, the delay associated with channel transition can be reduced, and the connection delay can be shortened. Furthermore, data loss can be avoided.
- FIG. 3 shows a communication system assumed in this embodiment.
- a communication system (specifically, a radio access network) assumed in this embodiment is connected to a plurality of transmitters or base stations (BTS) (1-1, 1-2, 1-3) and transmitters.
- Radio network controller (RNC) (1-4) and multiple receivers or mobile stations (UE) (1—5, 1-6, 1-7, 1—8, 1—9, 1—10) Is done.
- a service area is formed using radio to enable exchange of information between the BTS and the UE.
- the BTS has a physical layer protocol stack, and further includes a MAC layer having a retransmission control (HARQ) function.
- L3 (RRC) layer signaling is terminated between the RNC and the UE. Depending on the RAN configuration, the RNC may not be prepared (that is, the functions of the RNC may be distributed to the BTS). Signaling is terminated between the BTS and the UE.
- a radio physical channel that can be used in common by multiple UEs is defined between BTS and UE as a radio physical channel for transmission from BTS to UE (downlink: DL) and UE power to BTS (uplink: UL). . Any logical channel can be transmitted over this radio physical channel.
- the transmitting device and the receiving device are defined as BTS and UE for transmitting information via a wireless link, but the transmission path between the transmitting device and the receiving device is limited to radio. Instead, it may be a wired transmission line.
- the logical channel is composed of BCCH, PCCH, MCCH, DCCH, CCCH, DTCH, MSCH, and MTCH.
- the CCCH and DCCH are particularly focused.
- E-PDSCH and E-PUSCH there are one radio physical channel that can be used in common in the uplink and downlink directions
- PRACH is prepared by UL.
- E—PDS CH BCCH, PCCH, MCCH, DCCH, CCCH, MSCH, MTCH, and DTCH can be transmitted.
- DCCH and DTCH can be transmitted on the UL radio physical channel (E—PUSCH).
- CCCH can be transmitted on PRACH.
- the radio physical channel is accompanied by a radio physical control channel for controlling the common radio physical channel in addition to the above-described common radio physical channel used for DL and UL data transmission.
- a radio physical control channel for controlling the common radio physical channel in addition to the above-described common radio physical channel used for DL and UL data transmission.
- a reservation signal transmission channel, a reservation permission signal transmission channel, and an indicator channel are provided in association with the UL common radio physical channel (E—PUSCH).
- the reservation signal transmission channel is a common channel for transmitting a reservation signal when data is generated in UL.
- the reservation permission signal transmission channel is a common channel for transmitting reservation permission to the UE as a return of the reservation signal transmission channel.
- the indicator channel is a channel for notifying the transmitting side of ACKZNACK when performing retransmission control associated with HARQ in UL data transmission. It is set after the RRC connection is established.
- a common radio physical control channel and an indicator channel are prepared in association with the DL common radio physical channel (E-PDSCH).
- the common radio physical control channel is a channel for informing the receiving side in advance that data is transmitted on the common radio physical channel. Normally, the force that is set after the RRC connection is established.
- the indicator channel is a channel for notifying the transmitting side of ACKZNACK (or CQI (Channel Quality Indicator)) when performing retransmission control associated with HARQ in DL data transmission. It is set after the RRC connection is established.
- FIG. 5 shows a connection sequence according to this embodiment.
- the UE sends a preamble (Preamble) for reserving a radio physical channel to the BTS to the BTS in order to transmit an “RCC connection request (Connection Request)” to the RNC.
- the BTS that has received the preamble transmits its grant or grant on the AICH, and the UE that has obtained the grant on the AICH has the timing (time and time) specified in advance by the system. (Or frequency, etc.) and the upper radio physical channel (PRACH), send an “RRC connection request.”
- the “RRC connection request” arriving at the BTS is transmitted to the RNC.
- the received RNC sends “RRC Connection Setup”.
- the BTS uses a common radio control channel equivalent to HS—SCCH (the same radio channel on the downlink radio physical channel (E—PDSCH) even after RRC Connection is established).
- Send data arrival notification includes a global identifier (the RNTI medium is also allocated in advance for CCCH).
- the global identifier is an identifier that can be shared among a plurality of UEs communicating on the CCCH logical channel, and may be called a “common identifier”.
- the BTS transmits “RRC connection setup ⁇ on the downlink common radio physical channel at the timing indicated in the data arrival notification.
- the RRC connection is established, and the UE adds the radio physical channel indicated in the RRC connection setup (uplink reservation signal transmission).
- a dedicated dedicated control channel, an ACKZNACK channel for HARQ, and a downlink radio channel are also added.
- a reservation signal is transmitted to the BTS using the dedicated control channel.Reservation permission is RRC connection. It is transmitted on the reservation permission channel in the same manner as the channel before establishment.
- FIG. 6 is a block diagram of the functions provided in the RNC assumed in this embodiment.
- the RNC is composed of a control unit, a wired signal transmission / reception unit, and an L3 control unit.
- the control unit controls each functional entity and controls the operation of the entire RNC.
- the wired signal transmitter / receiver provides a function to transmit / receive signals between BTS and RNC.
- the L3 control unit has a function to perform L3 signaling between the UE and the RNC.
- FIG. 7 is a block diagram of functions provided in the BTS assumed in this embodiment.
- the BTS is composed of a control unit, wireless signal transmission / reception unit, wired signal transmission / reception unit, reservation signal analysis unit, reservation permission signal generation unit, data arrival notification generation unit, and data storage unit.
- the control unit controls each functional entity and controls the operation of the entire BTS.
- the radio signal transmitter / receiver exchanges signals through the radio link established between the UE and the BTS. It has a function to perform processing (radio modulation, channel coding, etc.) necessary for this.
- the wired signal transmitter / receiver has a function to perform the necessary processing to transmit signals between the RNC (higher node) and the BTS using a wired line.
- the reserved signal analyzer has two functions: in addition to the function to analyze the preamble, it also has the function to analyze the reserved signal transmitted on the reserved channel after the RRC connection is established.
- the reservation permission signal creation unit also has two functions: a function for responding to a preamble and a function for creating a reservation permission for a response to a reservation signal transmitted through a reservation channel.
- the data arrival notification creation unit receives data to transmit the signal on the downlink radio physical channel. It has a function to create a signal to notify that, and also has a function to set an identifier appropriately according to the data type (logical channel type).
- the data storage unit has a function to hold the signal until the signal transmitted by the RNC (upper node) power can be transmitted on the wireless physical channel in the downlink direction by the wired signal transmission / reception unit.
- FIG. 8 shows a block diagram of functions provided in the UE assumed in this embodiment.
- the UE includes a control unit, a signal transmission / reception unit, a reservation signal creation unit, a retransmission count monitoring unit, a timer control unit, a reservation permission channel analysis unit, an L3 control unit, and a common control channel analysis unit.
- the control unit controls each functional entity and controls the operation of the entire mobile station apparatus.
- the signal transmission / reception unit has a function to perform radio layer processing such as channel coding, radio modulation, and synchronization establishment for transmitting control signals and user data between the UE and RAN (BTS, RNC). It also has a function to send and receive signals at the timing specified by the permission channel and common control channel.
- the reservation signal creation unit has a function to create a reservation signal for making a transmission reservation to the BTS in the reservation type access in the uplink direction, and creates a preamble when data is generated or when a connection sequence is started at the time of calling. It also has a function to perform.
- the retransmission number monitoring unit has a function of monitoring the number of preamble retransmissions.
- the timer control unit performs monitoring while waiting for a grant in AICH after transmitting the preamble.
- the reservation permission channel analysis unit recognizes that permission for the preamble at the initial stage of the connection sequence (before RRC connection establishment) is transmitted by AICH, and It also has a function to analyze the transmission permission timing (time, frequency, etc.) included in the reservation permission signal transmitted on the reservation permission channel after the RRC connection is established.
- the L3 control unit has a function to send and receive L3 (RRC) control signals and to analyze L3 control signals in the connection sequence.
- the common control channel analyzer has a function to analyze the timing of data transmission on the downlink radio physical channel, and the signal on the common control channel is masked with a global identifier before the RRC connection is established. And has a function for recognizing the identifier.
- FIG 9 shows the RNC operation flow assumed in this example.
- the RNC determines whether or not it has received the “RR C connection request ⁇ ⁇ from the BTS (step 1). If the result of the determination in step 1 is“ RRC connection request ”received! “Setup” is transmitted to BTS (Step 2). After sending "RRC connection setup", RNC determines whether or not "RRC connection setup confirmation” has been received (Step 3). As a result of the judgment, if the “RRC connection setup confirmation” has been received, the RNC enters the reception status of the next RRC signaling message to be transmitted.
- step 1 determines whether “RRC connection request ⁇ has been received. If the result of the determination in step 1 is that “RRC connection request ⁇ has not been received, the RNC terminates the process. As a result of the determination in step 3,” RRC connection setup confirmation ”is received and In this case, the RNC ends the process.
- FIG 10 shows the BTS operation flow assumed in this example.
- the BTS judges whether or not it has received the preamble from the UE (Step 1). If the result of determination in step 1 is that the preamplifier has been received, a grant signal is created using the signature in the preamble and transmitted using AICH (step 2).
- the BTS judges whether or not it has received the “RCC connection request” from the UE (step 3). As a result of the judgment in Step 3, when the “RRC connection request” is received, the BTS sends the received “RRC connection request” to the RNC.
- BTS receives "RRC connection setup" from RNC as a response to "RRC connection request", it sends "RRC connection setup". To do.
- the BTS transmits the “RRC connection setup” message on the downlink common radio physical channel at the notified timing (step 5).
- the BTS judges whether a reservation signal is transmitted on the reservation channel set up with the UE (step 6). If the result of step 6 is that a reservation signal has been transmitted, the BTS transmits a reservation permission signal on the reservation permission channel (step 7). Thereafter, steps 6 and 7 are repeated. On the other hand, if the result of the determination in step 1 indicates that no preamble has been transmitted, the BTS ends the process. If the result of step 3 is that BTS force 'RRC connection request' is received!
- BTS waits in step 3 until an RRC connection request is received. If the reservation signal is not transmitted as a result of the determination in step 6, BTS waits in step 6 until the reservation signal is transmitted. To do.
- FIG. 11 shows an operation flow of the mobile station apparatus (UE) assumed in this embodiment.
- the UE judges whether or not there is paging with RAN power, or determines whether or not the UE has generated data to be transmitted (step 1). If there is data to be paged or transmitted as a result of the determination in step 1, the process for establishing an RRC connection is entered.
- the UE creates a preamble for transmitting uplink signals to the BTS.
- the preamble is composed including the signature (step 2).
- the UE transmits the preamble created in step 2 (step 3).
- the UE judges whether or not a grant signal composed of a signature is transmitted on the AICH transmitted from the BTS (step 4). As a result of judgment of step 4
- Step 5 When the permission signal including the signature of the own UE is transmitted on AICH, L3 for establishing the RRC connection at the timing (and frequency, modulation method, etc.) specified by the pre-formed system.
- the control signal “RRC connection request” is sent to the BTS (step 5). After sending the “RRC connection request” in step 5, a data arrival notification masked with a global identifier is transmitted on the common control channel. (Step 6) If the result of the determination in Step 6 is that a data arrival notification is transmitted on the common control channel, the UE analyzes the data arrival notification and sends a data arrival notification.
- Step 7 receive data (RRC connection setup) transmitted on the DL radio physical channel (step 7).
- the UE judges whether or not the UE's TMSI is included in the “RRC connection setup” received on the DL radio physical channel (step 10). If the result of step 10 is that the UE's own TMSI is included, the UE shall select the individual radio physical channel (for control) based on the radio physical channel information contained in the RRC connection setup. (Step 11) Subsequent transmission of the reservation signal for transmission and reception of the L3 control signal and user data is transmitted on the channel for reserved signal transmission that is set in common (Step 12).
- step 1 determines whether the result of determination in step 1 is that there is no paging from RAN or data to be transmitted. If the permission signal is not received on AICH as a result of the determination in step 4, the preamble is retransmitted after a predetermined time (step 8). After the retransmission of the preamble, the UE determines whether the number of retransmissions has been specified in advance and has reached the number of times (step 9). If the result of step 9 is that the predetermined number of times has not been reached, the flow returns to step 4. On the other hand, if the predetermined number of retransmissions has been reached, the UE ends the process.
- step 6 if the data arrival notification masked with the global identifier is received on the common control channel, the UE waits in step 6 until receiving the data arrival notification. In addition, if the data received in step 10 does not include the TMSI of the own UE, the process waits in step 6 until data including the TMSI of the own UE is received.
- the communication system assumed in the present embodiment is the same as the communication system described in the first embodiment, redundant description is omitted.
- the correspondence between the functional channel and the physical channel assumed in this embodiment is generally the same as the correspondence between the functional channel and the physical channel described in the first embodiment, as shown in FIG.
- the difference is that CCCH is also transmitted by E-PUSCH in the link (UL) radio channel. That is, in the first embodiment, only one shared channel is used in the downlink, and in the second embodiment, the uplink Only one shared channel is used on the line and only one shared channel is used on the lower line.
- the UE transmits a reservation signal for reserving a radio physical channel with the BTS to the BTS.
- the reservation signal is configured to include a signature selected by the UE at random (or other method).
- the signature configuration may be the same as in the W-CDMA system, or a part of the L2 identifier (RNTI) may be assigned to the signature.
- the BTS that has received the reservation signal transmits a reservation permission (the reservation permission is configured including a signature) on the reservation permission channel.
- the reservation permission channel can be used as a channel to transmit the reservation permission after the RRC connection is established!
- the UE that has received the reservation permission on the reservation permission channel transmits an “RRC connection request” on the timing (time, frequency, etc.) specified in the reservation permission and the uplink common radio physical channel (EP USCH).
- the “RRC connection request” that arrives at the BTS is further transmitted to the RNC.
- a data arrival notification is transmitted on a common radio control channel equivalent to HS—SCCH.
- a downlink physical channel E-PDSCH
- the data arrival notification is composed of a global identifier (assigned in advance for CCCH from the RNTI), and the BTS is also instructed by the data arrival notification.
- the UE that has received the data arrival notification receives “RRC connection setup ⁇ ” at the timing indicated in the arrival notification.
- the RRC connection setup is established, and the UE Add the radio physical channel specified in the RRC connection setup (add the dedicated control channel for uplink reservation signal transmission, the ACKZNACK channel for HARQ, and the downlink radio channel in the same way).
- Control channel Reservation signal is sent to the BTS.
- the reservation permission is transmitted on the reservation permission channel in the same manner as the channel before the RRC connection is established.
- the configuration of the BTS assumed in this embodiment is generally the same as the configuration of the BTS (FIG. 7) described in the first embodiment.
- the reservation signal analysis unit has a function of analyzing a reservation signal that also transmits UE power.
- the reservation permission signal creation unit has a function of transmitting a reservation permission for transmitting a reservation permission notification to a reservation signal transmitted from the UE.
- the configuration of the UE assumed in this embodiment is the same as the configuration of the UE (FIG. 8) described in the first embodiment.
- the reservation signal creation unit of the UE of this embodiment has a function of creating a reservation signal. This reservation signal is used to obtain the allocation permission on the uplink radio channel (E-PUSCH) for transmitting the RRC connection request signal. Even after the RRC connection is established, the uplink radio channel
- the reservation permission channel analysis unit transmits the reservation permission transmitted from the BTS on the reservation permission channel and the transmission timing (time) indicated by the reservation permission. , Frequency, etc.).
- the operation flow of BTS assumed in this embodiment will be described with reference to FIG. In this example, the connection sequence until the RRC connection is established is explained.
- the BTS judges whether or not it has received the UE power reservation signal (step 1). If the result of the determination in step 1 indicates that the BTS has received a reservation signal, the signature included in the reservation signal A reservation permission signal is created using a receiver (step 2). The created reservation permission signal is transmitted on the reservation permission channel (step 3).
- the BTS determines whether or not an “RRC connection request ⁇ ⁇ has been received from the UE (Step 4). As a result of the determination in Step 4, if the“ RRC connection request ⁇ has been received, ”the RRC connection request is received.
- Step 5 When the request is sent to the RNC and “RRC connection setup” is received from the RNC as a response to the “RR C connection request”, the BTS indicates that it will send “RRC connection setup” on the common control channel.
- Step 5 At the notified timing, the “RRC connection setup” message is transmitted on the downlink common radio physical channel (Step 6) BTS is set up with UE.
- Step 7 If the reservation signal is transmitted as a result of the determination in Step 7, the reservation permission channel uses the reservation permission channel. Signal is transmitted (Step 8). After that the procedure of Step 7, 8 are repeated Kaee.
- step 1 determines whether a reservation signal has been transmitted. If the result of determination in step 1 is that a reservation signal has not been transmitted, the BTS ends the process. As a result of the determination in step 4, the BTS waits in step 4 until “RRC connection request is received and V”, if “RRC connection request” is received. If the result of step 7 is that a reservation signal has not been transmitted, the BTS waits in step 7 until a reservation signal is transmitted.
- the operation flow of the mobile station apparatus (UE) assumed in this embodiment will be described with reference to FIG. In this embodiment as well, the connection sequence until the RRC connection is established is explained. After the RRC connection is established, an individual logical channel recognized by the L2 identifier is established between the UE and the RAN, an individual control channel is prepared, and processing such as reservation and signal transmission / reception is performed.
- the UE judges whether there is paging from the RAN or whether data to be transmitted by the UE has been generated (step 1). If the result of step 1 is that there is data to be paged or transmitted, the UE enters the RRC connection establishment process.
- the UE creates a reservation signal for transmitting an uplink signal to the BTS.
- the corresponding reservation signal is composed of signatures that the UE randomly selects (step 2).
- Reservation signal is signature A configuration may be used in which a spreading sequence is used, or a configuration in which a signature is included in the signal may be used.
- the reservation signal created in step 2 is transmitted by UE (step 3).
- a reservation permission signal composed of the signature selected by the own UE is transmitted on the reservation permission channel transmitted from the BTS force (step 4).
- the reservation permission signal transmitted through the reservation permission channel may be masked by the signature, or may be configured to include the signature inside the signal.
- the reservation permission signal is analyzed.
- the UE sends an L3 control signal and “RRC connection request” to establish an RRC connection to the BTS at the transmission timing (frequency, modulation method, etc.) indicated by the reservation permission signal (step 5).
- step 5 after the “RRC connection request” is transmitted, it is determined whether or not a data arrival notification masked with a global identifier is transmitted on the common control channel (step 6).
- the data arrival notification is analyzed, and the instructions (modulation method, channel coding, frequency, transmission timing, etc.) included in the data arrival notification are analyzed.
- the UE receives the data (RRC connection setup) transmitted on the DL radio physical channel (step 7)
- the UE receives the UE in the “RRC connection setup” received on the DL radio physical channel.
- Step 10 If the result of the determination in Step 10 is that the UE's TMSI is included, the RRC connection is determined.
- An individual radio physical channel (for control) is set based on the radio physical channel information included in the setup "(Step 11). Reserved for transmission / reception of subsequent L3 control signals and user data The signal is transmitted on the reserved signal transmission channel set in common (step 12).
- step 1 if it is determined in step 1 that there is no paging from the RAN and no data to be transmitted, the process ends.
- step 4 a reservation permission signal including the signature of the own UE is received on the reservation permission channel.
- the reservation signal is retransmitted after a predetermined time (step 8).
- step 9 it is determined whether or not the number of retransmissions has reached a predetermined number (step 9). If the result of step 9 is that the predetermined number has not been reached, Row returns to step 4. On the other hand, if the predetermined number of retransmissions has been reached, the process ends.
- step 6 If the result of the determination in step 6 is that a data arrival notification masked with a global identifier is received on the common control channel, the UE waits in step 6 until it receives the data arrival notification. Also, at step 10, the received data includes the TMSI of the own UE! / In some cases, the UE waits at step 10 until data including the TMSI of the own UE is received.
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- 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 |
|---|---|---|---|
| US11/917,809 US8130740B2 (en) | 2005-06-17 | 2006-06-16 | Apparatus and method for channel transmission |
| EP20060766855 EP1892990A4 (en) | 2005-06-17 | 2006-06-16 | CHANNEL TRANSMISSION DEVICE AND CHANNEL TRANSMISSION METHOD |
| CN2006800253795A CN101223807B (zh) | 2005-06-17 | 2006-06-16 | 信道传输装置和信道传输方法 |
| KR1020087001082A KR101230366B1 (ko) | 2005-06-17 | 2006-06-16 | 채널 전송 장치 및 채널 전송 방법 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-178531 | 2005-06-17 | ||
| JP2005178531A JP4651462B2 (ja) | 2005-06-17 | 2005-06-17 | チャネル伝送装置及びチャネル伝送方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006135064A1 true WO2006135064A1 (ja) | 2006-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/312176 Ceased WO2006135064A1 (ja) | 2005-06-17 | 2006-06-16 | チャネル伝送装置及びチャネル伝送方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8130740B2 (ja) |
| EP (1) | EP1892990A4 (ja) |
| JP (1) | JP4651462B2 (ja) |
| KR (1) | KR101230366B1 (ja) |
| CN (1) | CN101223807B (ja) |
| TW (1) | TW200709597A (ja) |
| WO (1) | WO2006135064A1 (ja) |
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- 2006-06-16 CN CN2006800253795A patent/CN101223807B/zh not_active Expired - Fee Related
- 2006-06-16 KR KR1020087001082A patent/KR101230366B1/ko not_active Expired - Fee Related
- 2006-06-16 WO PCT/JP2006/312176 patent/WO2006135064A1/ja not_active Ceased
- 2006-06-16 TW TW095121659A patent/TW200709597A/zh not_active IP Right Cessation
- 2006-06-16 EP EP20060766855 patent/EP1892990A4/en not_active Withdrawn
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| JP2002506582A (ja) * | 1997-06-13 | 2002-02-26 | テレフォンアクチーボラゲット エル エム エリクソン | 分散セル式無線通信システムにおける物理制御チャネルの再使用 |
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| WO2008085954A3 (en) * | 2007-01-05 | 2009-01-22 | Interdigital Tech Corp | Fast uplink response to downlink shared channel transmission without a dedicated uplink channel |
| US8705456B2 (en) | 2007-01-05 | 2014-04-22 | Interdigital Technology Corporation | Fast uplink response to downlink shared channel transmission without a dedicated uplink channel |
| US9661655B2 (en) | 2007-01-05 | 2017-05-23 | Interdigital Technology Corporation | Transmitting CQI and ACK/NACK information via a physical uplink channel |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI318518B (ja) | 2009-12-11 |
| TW200709597A (en) | 2007-03-01 |
| US20090219906A1 (en) | 2009-09-03 |
| US8130740B2 (en) | 2012-03-06 |
| KR101230366B1 (ko) | 2013-02-07 |
| EP1892990A4 (en) | 2012-04-25 |
| JP2006352705A (ja) | 2006-12-28 |
| EP1892990A1 (en) | 2008-02-27 |
| CN101223807B (zh) | 2012-01-25 |
| KR20080042797A (ko) | 2008-05-15 |
| CN101223807A (zh) | 2008-07-16 |
| JP4651462B2 (ja) | 2011-03-16 |
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