WO2009105997A1 - 增强-专用传输信道传输时用户终端的编址和寻址方法 - Google Patents

增强-专用传输信道传输时用户终端的编址和寻址方法 Download PDF

Info

Publication number
WO2009105997A1
WO2009105997A1 PCT/CN2009/070533 CN2009070533W WO2009105997A1 WO 2009105997 A1 WO2009105997 A1 WO 2009105997A1 CN 2009070533 W CN2009070533 W CN 2009070533W WO 2009105997 A1 WO2009105997 A1 WO 2009105997A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
rucch
rnti
agch
common
Prior art date
Application number
PCT/CN2009/070533
Other languages
English (en)
French (fr)
Inventor
陈慧
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to HK10108493.3A priority Critical patent/HK1142182B/zh
Priority to CN200980102677.3A priority patent/CN101926105B/zh
Publication of WO2009105997A1 publication Critical patent/WO2009105997A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present invention relates to the field of wireless communications, and more particularly to a UE (user terminal) when transmitting CCCH (Common Control Channel) on an E-DCH (Enhanced-Dedicated Transport Channel) in a CELL-FACH (Cell-Forward Access Channel) state. Addressing and addressing methods.
  • CCCH Common Control Channel
  • E-DCH Enhanced-Dedicated Transport Channel
  • CELL-FACH Cell-Forward Access Channel
  • CELL-FACH uplink enhancement enhances the uplink packet data transmission performance of this state by introducing an E-DCH (Enhanced-Dedicated Transport Channel) transport channel in the CELL-FACH state, resulting in smaller packet transmission delay and higher transmission. rate.
  • E-DCH Enhanced-Dedicated Transport Channel
  • E-DCH transmission is commonly referred to as HSUPA (High Speed Uplink Packet Access), and HSUPA uses advanced physical layer technology to achieve high transmission efficiency.
  • HSUPA High Speed Uplink Packet Access
  • E-DCH transmissions were only used in the CELL-DCH (Cell-Dedicated Channel) state, signaling or data on the DCCH (Dedicated Control Channel) or DTCH (Dedicated Traffic Channel) logical channels. It is mapped to the E-DCH transport channel and then mapped to the E-PUCH (Enhanced-Physical Uplink Channel) physical channel.
  • the E-DCH service is divided into scheduling service and non-scheduling service according to different scheduling modes.
  • the resources of the non-scheduled service are allocated by the SRNC (Serving Radio Network Controller) for the UE (user terminal), and the non-scheduled service resources are cyclical and dedicated. Sexual, suitable for real-time services;
  • the SRNC allocates a cell-enhanced uplink resource pool for the Node B (Node B), and the Node B allocates resources for a single UE.
  • the SRNC determines that an enhanced uplink can be established for the UE after the admission control, and the radio link establishment or the radio link reconfiguration process by the NBAP (Node B Application Protocol) protocol requires the Node B to establish E for the UE.
  • NBAP Node B Application Protocol
  • the Node B receives the configuration parameter, and allocates an E-AGCH (Enhanced-Absolute Grant Channel) channel and an E-RNTI (Enhanced-Wireless Network Temporary Identity) to the UE from the enhanced uplink common resource pool of the cell, by using the NBAP
  • E-AGCH Enhanced-Absolute Grant Channel
  • E-RNTI Enhanced-Wireless Network Temporary Identity
  • the SRNC initiates a radio bearer setup command (radio bearer setup request) to the UE by using an RRC (Radio Resource Control) protocol, where the E-DCH configuration parameter, such as E-AGCH channel configuration, E-RNTI, mapping to Configuration of logical channels on E-DCH, E-TFC (Enhanced-Transport Format Set) configuration, etc.
  • RRC Radio Resource Control
  • the UE receives the radio bearer setup request, obtains the configuration parameter, and returns a radio bearer setup completion response message to the network side.
  • the UE determines that the current E-DCH transmission service is available according to the configuration parameter; when the amount of data in the logical channel buffer mapped by the UE to the E-DCH changes from 0 to non-zero, the UE initiates an E-RUCCH (enhanced-random connection) Incoming uplink control channel) Random access procedure, random access includes steps 105-107:
  • the UE selects an uplink synchronization code (SYNC_UL) dedicated to E-DCH random access, and transmits through an UpPCH (uplink pilot channel) channel;
  • SYNC_UL uplink synchronization code dedicated to E-DCH random access
  • UpPCH uplink pilot channel
  • the Node B After detecting the uplink synchronization code of the UE, the Node B sends an acknowledgement through the FPACH (Fast Physical Access Channel) channel. 107: The UE selects an E-RUCCH channel to send a scheduling request (random access request) on the determined subframe. , which carries its own E-RNTI;
  • the Node B After detecting the random access request of the UE, the Node B joins the UE to the contention UE group that uses the E-DCH resource, according to the current resource status, the QoS (Quality Of Service) attribute of the UE, and the UE. Assisting the scheduling of the UE, scheduling the UE, and allocating the appropriate resource, and transmitting the authorization information to the UE through the E-AGCH channel, where the E-AGCH carries the E-RNTI of the UE;
  • the UE After the UE detects the E-AGCH pointing to itself, after the timing time n AGCH , the UE sends data on the authorized E-PUCH, and there is an accompanying control channel E-UCCH on the E-PUCH.
  • E-TFCI Enhanced-Transport Format Indication
  • HARQ Hybrid Automatic Repeat Request
  • Node B decodes the associated control channel in the E-PUCH channel, obtains transport format information, and then decodes the data portion, and returns ACK/NACK on the E-HICH (E-DCH HARQ Acknowledgement Indicator Channel) channel (confirm /reissue) information.
  • E-HICH E-DCH HARQ Acknowledgement Indicator Channel
  • the uplink logical channel in the CELL_FACH state includes CCCH (Common Control Channel), DCCH
  • the RRC signaling sent on the CCCH channel is:
  • RRC Connection Request A connection request initiated by the UE in the Idle state
  • Cell Update UE-initiated cell update in the CELL_FACH, CELL PCH (Cell-Paging Channel) and URA-PCH (UTRAN Universal Terrestrial Radio Access Network Registration Area - Paging Channel) states;
  • URA Update The UE in the URA PCH state initiates an update.
  • FIG. 2 is a reasonable process when mapping the CCCH to the E-DCH. It is consistent with the initial E-DCH transmission process in the CELL-DCH state.
  • the uplink synchronization code uses a synchronization code dedicated to E-DCH random access, and after receiving the synchronization code acknowledged by the Node B on the FPACH channel, the UE initiates random access on the associated E-RUCCH channel. The need to carry scheduling information and the E-RNTI of the UE.
  • the Node B After detecting the scheduling request of the UE, the Node B authorizes the resource through the E-AGCH channel, and the E-AGCH carries the E-RNTI of the UE.
  • the UE After detecting the E-RNTI that is directed to the UE, the UE sends data on the authorized resource, where the initial RRC signaling mapped to the CCCH logical channel is sent, and the UE may also carry the scheduling in the data frame according to the data volume. information.
  • Node B confirms on the determined timing offset.
  • the Node B forwards the received E-DCH data to the RNC.
  • the Node B When the data of the UE on the CCCH is not transmitted, the Node B continues to schedule the UE through the E-AGCH channel, and continues the process of 204-207 above.
  • the RNC After receiving the initial RRC signaling of the UE, the RNC sends a response message. For example, for the RRC connection request of the UE, the RNC sends an RRC connection setup message. In the message, the RNC configures information about the radio bearer of the signaling (mapped onto the DCCH logical channel) for the UE, and configures the UE with
  • the UE may reply to the RRC connection setup complete message on the E-DCH, and may transmit according to the same E-DCH transmission process as in the CELL-DCH state.
  • the flow shown in Figure 2 can be used for CCCH mapping to E-DCH transmissions, which is consistent with the E-DCH transmission process in the CELL DCH state. Since the UE does not have dedicated configuration information when transmitting on the CCCH, some problems need to be solved: how to allocate the E-RNTI of the UE, and how the E-AGCH addresses a specific UE. A simple way is to broadcast several common E-RNTIs through the system broadcast message. The UE selects one of them as its own E-RNTI, but this will cause the E-RNTI conflict, that is: there may be multiple UEs using the same one at the same time. The E-RNTI causes the Node B to fail to accurately address a specific UE, which in turn causes conflicts in authorized resources.
  • the technical problem to be solved by the present invention is to provide a method for addressing and addressing a UE when transmitting CCCH on an E-DCH in a CELL-F ACH state, and to solve CCCH logic in a CELL FACH state in a TD-SCDMA system.
  • the channel is mapped onto the E-DCH transport channel, how to allocate the E-RNTI of the UE and how to address the UE when the UE initially accesses.
  • the present invention provides an addressing and addressing method for a user terminal in an enhanced-dedicated transmission channel transmission, which is applied to an enhanced-dedicated transmission channel in a cell-forward access channel CELL-FACH state.
  • a common control channel When transmitting a common control channel, the following steps are included:
  • the user terminal UE selects an E-RUCCH channel to initiate an uplink random access to the base station, where the E-RUCCH carries the E-RNTI of the UE, and the E-RNTI is a common E-RNTI corresponding to the E-RUCCH channel. ;
  • the base station After receiving the E-RUCCH channel, the base station performs resource authorization on the UE by using an enhanced-absolute grant channel E-AGCH channel, where the E-AGCH channel carries the public E-RNTI of the UE, and the E-AGCH channel
  • E-AGCH channel carries the public E-RNTI of the UE
  • E-AGCH channel The E-RUCCH transmitted by the UE has a determined timing relationship.
  • the foregoing method may further have the following feature: broadcasting the
  • the foregoing method may also have the following characteristics: the common E-RNTIs corresponding to the E-RUCCHs on the same carrier are different from each other, and the common E-RNTIs corresponding to the E-RUCCHs on different carriers are the same or different.
  • the foregoing method may further have the following feature: if the E-RUCCH corresponds to multiple common E-RNTIs, the RNTI of the UE is randomly selected by the UE from multiple common E-RNTIs corresponding to the E-RUCCH Select or follow a predetermined rule to select a public E-RNTL
  • the predetermined rule is any one of the following: selecting a public E-RNTL according to the identifier of the UE or the subframe number of the UE sending the E-RUCCH
  • the foregoing method may further have the following feature: the identifier of the UE or the result sent by the UE is a sequence number of a public E-RNTI selected by the UE.
  • the foregoing method may further have the following feature, the timing relationship between the E-AGCH channel and the E-RUCCH sent by the UE is indicated by a high layer configuration, or a protocol agreement, or by an E-AGCH channel.
  • the foregoing method may further have the following feature: after the timing relationship between the E-AGCH channel and the E-RUCCH sent by the user equipment is configured by a higher layer or a protocol, after the UE sends the E-RUCCH channel, The E-AGCH channel is detected on a timing of a high-level configuration or protocol, and if the E-AGCH channel includes a common E-RNTI of the UE, the E-AGCH channel is considered to be sent to the UE.
  • the foregoing method may further have the following feature: when the timing relationship between the E-AGCH channel and the E-RUCCH used by the user terminal is indicated by the E-AGCH channel, after the UE sends the E-RUCCH channel Detecting the E-AGCH channel, if the E-AGCH channel includes the common E-RNTI of the UE, further determining, according to the time indication of the E-AGCH channel, whether the E-AGCH channel is sent to the UE.
  • the foregoing method may further have the following feature: the UE determines, according to the time indication, whether the E-AGCH channel is sent to the UE, and the E-AGCH channel includes a time indication field, indicating the E-AGCH transmitter. Interval between frame and E-RUCCH channel transmission subframe, UE
  • the E-RUCCH transmission subframe number is calculated according to the time indication field, and compared with the subframe number where the UE sends the E-RUCCH, when the two are the same, it is determined that the E-AGCH channel is sent to the UE.
  • the present invention utilizes the relationship between channels in the random access algorithm in the existing system to design an addressing method, which binds the common E-RNTI to the E-RUCCH channel, and establishes the E-AGCH grant and the E-RUCCH channel. Timing relationships, which can achieve the purpose of uniquely identifying a user.
  • the present invention is simple and usable based on the existing random access procedure and the E-DCH transmission procedure.
  • FIG. 1 is a transmission process of an E-DCH scheduling service in a CELL-DCH state in the prior art
  • FIG. 2 is a transmission process in which a CCCH is mapped to an E-DCH
  • FIG. 3 is a flow chart of a UE preparation and addressing method of the present invention.
  • FIG. 4 is a schematic diagram of a CCCH transmission process in accordance with an embodiment of the present invention.
  • the invention is based on a random access algorithm in existing systems.
  • the E-RUCCH and the conventional PRACH Physical Random Access Channel
  • the synchronization code in the cell is divided into two groups, one dedicated to PRACH access and the other dedicated to E-RUCCH access.
  • the system can configure multiple FPACH channels, and one FPACH channel is associated with multiple random access channels.
  • the UE After the UE sends an E-DCH dedicated synchronization code, it selects a FPACH snooping confirmation message according to the following rules.
  • the Node B After detecting the synchronization code of the UE, the Node B sends an acknowledgment to the UE on the FPACH channel.
  • the Node B can only confirm one UE on one FPACH channel in one subframe, and the FPACH selection is also obtained according to the rule 1.
  • the relationship between the FPACH and E-RUCCH channels satisfies:
  • nE- UCCHi 0,..., E-RU CCHi ⁇ 1 ;
  • N RUCCH1 is the number of E-RUCCH channels associated with the ith FPACH
  • NE-RUCCH! is not greater than LEi;
  • LEi is the length of the E-RUCCH transport block, which is generally 1, 2 (unit: subframe);
  • SFN' is the system subframe number when the terminal receives the acknowledgement on FPACHi, mod is Modular operation.
  • the UE After receiving the acknowledgment message, the UE selects an E-RUCCH channel according to Rule 2, and sends a random access message in the second subframe after receiving the FPACH acknowledgment.
  • the E-RUCCH transport block length is greater than 1 and the subframe number of the second subframe is an odd number, then a subframe is transmitted.
  • the present invention associates the E-RNTI with the E-RUCCH channel, and the same common E-RNTI can only be used by one UE at the same time, thereby avoiding the common E-RNTI caused by using the same common E-RNTI by more than one UE.
  • the conflict as described in Figure 3, is specifically:
  • each enhanced random access uplink control channel E-RUCCH corresponds to one or more common E-RNTIs
  • the public E-RNTI resources are allocated by the Node B; the common E-RNTI will be shared by the UEs in the cell.
  • the public E-RNTI and its corresponding relationship with the E-RUCCH channel are broadcast in the system message; the common E-RNTIs corresponding to the E-RUCCHs on the same carrier are different from each other, and the common E-RNTI corresponding to each E-RUCCH on different carriers They can be the same or different.
  • the UE when the UE selects an E-RUCCH to initiate uplink random access, filling the E-RNTI of the UE in the E-RUCCH, where the padded E-RNTI is a common E-RNTI associated with the E-RUCCH channel;
  • an E-RUCCH channel corresponds to multiple common E-RNTIs
  • one of the multiple common E-RNTIs associated with the E-RUCCH may be selected according to a certain rule, and the common E-
  • the selection rules of RNTI can be agreed by agreement, which can be:
  • IMSI mod K k
  • IMSI International Mobile Subscriber Identity
  • SFN' mod K k
  • SFN is the subframe number of the UE transmitting the E-RUCCH (if the E-RUCCH spans 2 subframes, then the first subframe is taken Subframe number)
  • K is the number of common E-RNTIs associated with the E-RUCCH channel
  • k is the sequence number of the common E-RNTI used by the UE;
  • the UE randomly selects a common E-RNTI as its own E-RNTI.
  • the Node B After receiving the uplink random access sent by the UE through the E-RUCCH, the Node B performs resource authorization to the public E-RNTI user (that is, the UE using the public E-RNTI) through the E-AGCH, where the E-AGCH channel and There is a certain timing relationship between the UE's E-RUCCH channels.
  • E-AGCH channel addresses the UE One or more E-AGCH channels are allocated in the cell for authorization in E-DCH transmission in the CELL-FACH state, and one or more E-AGCH channels are selected by the Node B in the cell E-AGCH resource pool. Or multiple E-AGCH channels, these channels can share resources with E-DCH transmissions in the CELL-DCH state, and are broadcast by system administrators in system messages.
  • the E-AGCH channel uses the public E-RNTI to address the UE, and the E-RUCH channel of the E-AGCH channel and the last transmission of the UE is determined. Timing relationship, which is indicated by higher layer configuration, or protocol convention, or by E-AGCH channel.
  • the method for the Node B to address the UE through the E-AGCH channel specifically includes:
  • the CRC field of the E-AGCH channel includes the E-RNTI of the UE
  • the UE will bring its own E-RNTI, that is, the UE selects in the public E-RNTI.
  • the Node B will include the UE's E-RNTI information in the CRC (Cyclic Redundancy Check) field of the E-AGCH channel.
  • CRC Cyclic Redundancy Check
  • E-RUCCH resource is shared by the UE in the intra-cell, it also means that multiple UEs in the cell share a common E-RNTI in time division, so that a timing relationship can be established between the E-AGCH and the E-RUCCH channel to determine the end. Which UE is sent to.
  • E-AGCH and E-RUCCH can be based on a fixed timing relationship (method 1) or a flexible timing relationship (method 2).
  • Method 1 The timing relationship between the E-AGCH grant and the E-RUCCH scheduling request is configured by the upper layer or by a protocol, such as how many subframes are separated by the two, or how many slots are separated.
  • the UE After successfully transmitting the E-RUCCH channel, the UE detects the E-AGCH channel at a specified timing (ie, a high-level configuration or a protocol-scheduled timing). If the E-AGCH channel includes the E-RNTI selected by the UE, it is considered to be If it is not detected, it means that the authorization application is not successful, and the UE may consider re-initiating the scheduling request.
  • Method 2 On the E-AGCH channel, indicate the scheduling request on the E-RUCCH in the subframe for the current authorization, and the UE needs to continuously detect the E-AGCH channel after the E-RUCCH channel is sent after the scheduling request is initiated. If the E-RNTI selected by the UE is included in the E-AGCH channel, it is also necessary to determine whether it belongs to its own authorization according to the time indication.
  • the time indication can utilize the EGSN field on the E-AGCH.
  • the present invention is not limited to using the field for time indication.
  • this field is used to count the E-AGCH of the same user. Further power control is performed, and this field is not used in CCCH transmission.
  • the field is 3 bits, and is reused as a time indication for indicating the interval between the E-AGCH transmission subframe and the E-RUCCH transmission subframe.
  • Fixed offsets can be configured by protocol conventions or higher layers, in units of subframes. For example, if the fixed offset is 7 and the current E-AGCH is sent with the subframe number of 240 and the EGSN is 5, the authorized pin
  • the E-RUCCH transmission subframe number of the pair is at 228. That is, a user who transmits an E-RUCCH using the E-RNTI in subframe number 228 will receive the E-AGCH channel.
  • the UE After transmitting the E-RUCCH, the UE starts to continuously monitor the E-AGCH channel after the number of subframes indicated by the fixed offset, if the E-AGCH channel includes the public E-RNTI selected by itself, and
  • the E-RUCCH transmission subframe number calculated according to the time indication field is the subframe number in which the E-RUCCH is transmitted by itself, the E-AGCH is considered to be sent to itself. Since the system subframe number is an integer between 0 and 255, when the equation is followed by a negative number, an offset of 255 should be added.
  • the association relationship between the public E-RNTI and the E-RUCCH and the establishment of the timing relationship between the E-AGCH grant and the E-RUCCH scheduling request can solve the problem that the CCCH channel cannot be edited due to lack of dedicated configuration information when mapping to the E-DCH channel. Address and address the problem with the UE.
  • TD-SCDMA in 3GPP systems has been based on a multi-carrier architecture.
  • random access resources including synchronization code to send UpPCH, FPACH and E-RUCCH resources
  • E-DCH traffic channel E-PUCH and control channels E-AGCH and E-HICH
  • E-AGCH and E-HICH E-AGCH and E-HICH
  • the timing between the E-AGCH grant and the E-RUCCH schedule request is configured by the upper layer.
  • the upper layer first needs to configure the information elements required for the CCCH to be mapped to the E-DCH.
  • the information related to the present invention includes:
  • E-RNTI information and its association with the E-RUCCH channel (as shown in Table 1), and E-AGCH channel information (as shown in Table 2).
  • Code resource information which can be configured with up to 4 code channels.
  • Article 2 can be used as an E-RUCCH channel.
  • R TIperE channel E-R TI maximum number can be 1, can also
  • a "Common E-RNTI" information element and its subordinate information elements can be configured for each E-RUCCH channel. There are one or more in each list (the number is represented by maxERNTIperERUCCH).
  • Common E-RNTL public E-RNTI information can be configured by Node B and broadcast in system messages through the RNC organization. Currently, there are up to 16 random access resource configuration instances for the primary carrier in the system message, and each configuration instance should have the information element shown in Table 1. The configuration on the secondary carrier is the same as that on the primary carrier.
  • the E-AGCH channel resources are selected by the Node B from the cell common E-AGCH resource pool, and are broadcasted in the system message through the RNC organization.
  • Te-agch is the time interval between the E-RUCCH scheduling request and the E-AGCH authorization. It reflects the scheduling capability and scheduling frequency of the system. This value can be selected by the Node B or configured by the RNC, and finally also in the system message. Broadcasting. If selected by the RNC, Te-agch needs to be configured to Node B at the same time.
  • the E-AGCH channel resources at multiple frequency points should be separately configured.
  • Figure 4 is a specific CCCH data transmission process based on the premise that the cell supports CCCH mapping to the E-DCH transmission, and the UE has the E-DCH transmission capability, which includes the following steps:
  • the UE When the UE needs to initiate an RRC connection, the UE selects a carrier, and selects a synchronization code dedicated to the E-RUCCH access on the carrier, and sends the synchronization code on the available UpPCH subchannel.
  • the UE selects an FPACH channel according to the rule 1. , recorded as FPACHi.
  • the Node B After detecting the synchronization code, the Node B selects the FPACHi channel by rule 1, and sends an acknowledgement on the subframe that satisfies rule 2.
  • the UE selects the nth E-RUCCH channel associated with the FPACHi according to rule 2. Selecting a common E-RNTI according to the system information, when the E-RUCCH is associated with only one common E-RNTI, the UE uses the common E-RNTI; when the E-RUCCH is associated with multiple common E-RNTIs, The UE selects a public E-RNTI according to the rules stipulated in the protocol. The UE fills in the information in the E-RUCCH channel with the selected common E-RNTI.
  • the Node B After receiving the E-RUCCH channel, the Node B sends the resource authorization information on one of the common E-AGCH channels in the subsequent Te-agch subframes.
  • the E-AGCH channel can also be allocated a dedicated E-. RNTI), at this time, the UE can receive the E-AGCH channel pointing to its selected E-RNTI according to the same timing convention.
  • the UE detects the E-AGCH channel on the Te-agch subframe after the E-RUCCH is sent, and after the E-AGCH channel contains the E-RNTI pointing to itself (that is, the E-RNTI including the UE common)
  • the data is sent on the resource, where the initial RRC signaling is sent to the CCCH logical channel, and the UE may also carry the scheduling information in the data frame according to the data volume.
  • Node B confirms on the determined timing offset.
  • the Node B forwards the received E-DCH data to the RNC.
  • step 405 if the UE does not detect the E-AGCH channel pointing to itself, indicating that the access fails, the UE needs to re-initiate the random access procedure.
  • the present invention utilizes the relationship between channels in the random access algorithm in the existing system to design an addressing method, which binds the common E-RNTI to the E-RUCCH channel, and establishes the E-AGCH grant and the E-RUCCH channel. Timing relationships, which can achieve the purpose of uniquely identifying a user.
  • the invention is based on the existing random access procedure and the E-DCH transmission procedure, and is simply available.

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

增强-专用传输信道传输时用户终端的编址和寻址方法
技术领域
本发明涉及无线通讯领域， 尤其涉及一种 CELL— FACH (小区―前向接入 信道）状态下在 E-DCH (增强-专用传输信道）上传输 CCCH (公共控制信道） 时 UE (用户终端 ) 的编址和寻址方法。
背景技术
3GPP (第三代移动通信伙伴组织 ) 目前正在进行 CELL— FACH状态上行 增强的标准化工作。 CELL— FACH上行增强通过在 CELL— FACH状态引入 E-DCH (增强-专用传输信道）传输信道来增强该状态的上行分组数据传输性 能， 使其获得较小的分组传输时延和较高的传输速率。
E-DCH传输就是通常所说的 HSUPA (高速上行分组接入）， HSUPA运用 先进的物理层技术来获得高的传输效率。在 3GPP Rel-7之前的版本中， E-DCH 传输只在 CELL— DCH (小区―专用信道 )状态下使用， DCCH (专用控制信道 ) 或 DTCH (专用业务信道）逻辑信道上的信令或数据映射到 E-DCH传输信道 上， 再映射到 E-PUCH (增强-物理上行信道）物理信道上。 E-DCH业务按调 度方式的不同分为调度业务和非调度业务， 其中非调度业务的资源由 SRNC (服务无线网络控制器）为 UE (用户终端）分配， 非调度业务资源具有周期 性和专用性， 适合于实时业务； 在调度业务中， 由 SRNC为 Node B (节点 B ) 分配小区增强上行链路资源池， 由 Node B为单个 UE分配资源。
CELL— DCH状态下的一次 E-DCH调度业务传输过程如图 1所示。
101 : SRNC 经过接纳控制认为可以为该 UE建立增强上行链路， 通过 NBAP ( Node B Application Protocol, 节点 B应用协议）协议的无线链路建立 或无线链路重配置过程要求节点 B为 UE建立 E-PUCH无线链路；
102: 节点 B接收配置参数， 并从该小区的增强上行公共资源池中为该 UE分配 E-AGCH (增强-绝对授权信道）信道和 E-RNTI (增强 -无线网络临 时标识） ， 通过 NBAP 的无线链路建立响应或无线链路重配置响应返回给
1 180900638 SRNC;
103: SRNC通过 RRC ( Radio Resource Control, 无线资源控制）协议向 UE发起无线承载建立命令（无线承载建立请求） ， 其中包含 E-DCH配置参 数， 如 E-AGCH信道配置、 E-RNTI、 映射到 E-DCH上的逻辑信道的配置、 E-TFC (增强-传输格式集） 配置等；
104: UE接收无线承载建立请求， 获取配置参数， 向网络侧回复无线承 载建立完成响应消息。 UE根据配置参数确定当前 E-DCH传输业务是可用的； 当 UE映射到 E-DCH上的逻辑信道緩冲区中数据量由 0变为非 0时， UE发 起 E-RUCCH (增强 -随机接入上行控制信道） 随机接入过程， 随机接入包括 步骤 105-107:
105: UE选择专用于 E-DCH随机接入的上行同步码（ SYNC— UL ) , 通 过 UpPCH (上行导频信道）信道发送；
106: Node B检测到 UE的上行同步码后 , 通过 FPACH (快速物理接入 信道）信道发送确认； 107: UE选择一条 E-RUCCH信道在确定的子帧上发送调度请求（随机 接入请求） ， 其中携带自己的 E-RNTI;
108: 节点 B检测到该 UE的随机接入请求后， 将 UE加入使用 E-DCH 资源的竟争 UE群中， 根据当前的资源状况、 UE的 QoS ( Quality Of Service, 服务质量）属性、 UE辅助调度信息等对该 UE进行调度，分配合适的资源后， 通过 E-AGCH信道向 UE发送授权信息， E-AGCH上携带 UE的 E-RNTI;
109: UE检测到指向自己的 E-AGCH后， 在定时时间 n AGCH后， UE在 授权的 E-PUCH上发送数据，在 E-PUCH上还有一个伴随的控制信道 E-UCCH
(增强-上行控制信道） , UE在其中携带 E-TFCI (增强-传输格式指示） 、 HARQ (混合自动重传请求）进程号和重传序列号；
110: 节点 B对 E-PUCH信道中的伴随控制信道解码， 得到传输格式信 息， 然后对数据部分进行解码， 并在 E-HICH ( E-DCH HARQ确认指示信道） 信道上返回 ACK/NACK (确认 /重发 )信息。
在 CELL— FACH状态下上行逻辑信道包括 CCCH(公共控制信道）、DCCH
2 180900638 和 DTCH。 在 CCCH信道上发送的 RRC信令有：
RRC连接请求（ RRC Connection Request ) ： UE在 Idle (空闲）状态发 起的连接请求；
小区更新（ Cell Update )： CELL_FACH、 CELL PCH (小区-寻呼信道） 和 URA— PCH( UTRAN通用陆地无线接入网络注册区 -寻呼信道）状态的 UE 发起的小区更新；
URA更新 （ URA Update ) ： URA PCH状态的 UE发起更新。
在 CELL— FACH状态下进行 E-DCH传输时，由于该状态不支持专用链路， 因而只能进行调度业务， 图 2是将 CCCH映射到 E-DCH上时的一种合理的 流程， 该流程和 CELL— DCH状态下的初始 E-DCH传输过程一致。
201-203: 处于 Idle状态、 或处于 CELL— PCH、 URA PCH态的 UE, 要 发起上行接入， 即通过 CCCH逻辑信道发送 RRC连接请求或小区更新请求 或 URA更新时， 首先进行上行随机接入过程。 该过程中， 上行同步码使用专 用于 E-DCH随机接入的同步码， UE收到 Node B在 FPACH信道上发来的同 步码确认后， 在相关联的 E-RUCCH信道上发起随机接入， 其中需要携带调 度信息和 UE的 E-RNTI。
204: Node B检测到 UE的调度请求后， 通过 E-AGCH信道授权资源， E-AGCH上携带 UE的 E-RNTI。
205: UE检测到指向自己的 E-RNTI后， 在授权的资源上发送数据， 此 处是发送映射到 CCCH逻辑信道上的初始 RRC信令， UE还可以根据数据量 情况在数据帧中携带调度信息。
206: Node B在确定的定时偏移上进行确认。
207: Node B将接收的 E-DCH数据转发给 RNC。
当 UE在 CCCH上的数据未传送完成时， Node B会继续通过 E-AGCH信 道继续调度 UE , 并继续以上 204 - 207的过程。
RNC在收到 UE的初始 RRC信令后， 会发送响应信息， 比如对于 UE的 RRC连接请求， RNC会发送 RRC连接建立消息。 在该消息中， RNC会为 UE配置信令无线承载方面的信息 (映射到 DCCH逻辑信道上；)， 并为 UE配
3 180900638 置 E-DCH相关的资源， 比如 E-RNTI。 此时 UE可以在 E-DCH上回复 RRC 连接建立完成消息， 并可以按照和 CELL— DCH状态下相同的 E-DCH传输过 程进行传输。
图 2 所示的流程可以用于 CCCH 映射到 E-DCH 上的传输， 它和 CELL DCH状态下的 E-DCH传输过程一致。 由于 CCCH上传输时 UE还不 具有专用配置信息，因而一些问题需要解决：如何分配 UE的 E-RNTI, E-AGCH 如何寻址某个特定的 UE。一种简单的方式是通过系统广播消息广播若干个公 共 E-RNTI, UE选择其中一个作为自己的 E-RNTI, 但这会造成 E-RNTI的冲 突， 即： 可能有多个 UE同时使用同一个 E-RNTI, 造成 Node B无法准确寻 址一个具体的 UE, 进而造成授权资源的冲突。
发明内容
本发明要解决的技术问题是提供一种在 CELL— F ACH状态下在 E-DCH上 传输 CCCH 时 UE 的编址和寻址方法， 解决在 TD-SCDMA 系统中在 CELL FACH状态下将 CCCH逻辑信道映射到 E-DCH传输信道上时， 在 UE 初始接入时如何分配 UE的 E-RNTI及如何寻址 UE的问题。
为了解决上述技术问题， 本发明提供了一种增强-专用传输信道传输时用 户终端的编址和寻址方法，应用在小区—前向接入信道 CELL— FACH状态下在 增强 -专用传输信道上传输公共控制信道时， 包括如下步骤：
在小区内分配一个或多个公共增强 -无线网络临时标识 E-RNTI,—条增 强随机接入上行控制信道 E-RUCCH对应一个或多个公共 E-RNTI;
用户终端 UE选择一条 E-RUCCH信道向基站发起上行随机接入， 其中， 所述 E-RUCCH中携带所述 UE的 E-RNTI, 该 E-RNTI是该 E-RUCCH信道 对应的公共 E-RNTI;
基站收到 E-RUCCH信道后， 使用增强 -绝对授权信道 E-AGCH信道对 该 UE进行资源授权， 所述 E-AGCH信道中携带所述 UE的公共 E-RNTI, 并 且所述 E-AGCH信道与该 UE发送的所述 E-RUCCH有确定的时序关系。
进一步的， 上述方法还可具有以下特点， 在系统消息中广播所述
4 180900638 E-RUCCH信道与公共 E-RNTI的对应关系。
进一步的， 上述方法还可具有以下特点， 同一载波上的各 E-RUCCH之 间对应的公共 E-RNTI互不相同，不同载波上的 E-RUCCH对应的公共 E-RNTI 相同或不同。
进一步的， 上述方法还可具有以下特点， 如果所述 E-RUCCH对应多个 公共 E-RNTI, 所述 UE的 RNTI是所述 UE从所述 E-RUCCH对应的多个公 共 E-RNTI中随机选择或按照预定规则选择的一个公共 E-RNTL
进一步的， 上述方法还可具有以下特点， 所述预定规则为如下任一种： 根据 UE的标识或 UE发送 E-RUCCH的子帧号选择公共 E-RNTL
进一步的， 上述方法还可具有以下特点， 将所述 UE的标识或 UE发送 所得结果为 UE选择的公共 E-RNTI的序号。
进一步的， 上述方法还可具有以下特点， 所述 E-AGCH信道与该 UE发 送的 E-RUCCH之间的时序关系由高层配置、 或协议约定、 或通过 E-AGCH 信道指示。
进一步的， 上述方法还可具有以下特点， 所述 E-AGCH信道与该用户终 端发送的 E-RUCCH之间的时序关系由高层配置或协议约定时，所述 UE在发 出 E-RUCCH信道后， 在高层配置或协议约定的时序上检测 E-AGCH信道， 如果该 E-AGCH信道包含所述 UE的公共 E-RNTI, 则认为该 E-AGCH信道 发向所述 UE。
进一步的， 上述方法还可具有以下特点， 所述 E-AGCH信道与该用户终 端使用的 E-RUCCH之间的时序关系由 E-AGCH信道指示时， 所述 UE发出 所述 E-RUCCH信道后， 检测所述 E-AGCH信道， 如果所述 E-AGCH信道上 包含所述 UE的公共 E-RNTI,进一步根据所述 E-AGCH信道的时间指示判断 该 E-AGCH信道是否是发向所述 UE。
进一步的， 上述方法还可具有以下特点， 所述 UE根据时间指示判断该 E-AGCH信道是否是发向 UE具体指， 所述 E-AGCH信道上包含一时间指示 字段， 指示 E-AGCH发送子帧和 E-RUCCH信道发送子帧之间的间隔， UE
5 180900638 根据时间指示字段计算出 E-RUCCH发送子帧号，与 UE发送 E-RUCCH所在 的子帧号相比较， 二者相同时， 判断该 E-AGCH信道是发向所述 UE。
本发明利用现有系统中的随机接入算法中各信道之间的关系来设计寻址 方法 ,使公共 E-RNTI与 E-RUCCH信道相绑定、使 E-AGCH授权和 E-RUCCH 信道建立时序关系， 这样可以达到唯一识别一个用户的目的。 本发明基于现 有随机接入流程和 E-DCH传输流程， 简单可用。 附图概述
图 1是现有技术中 CELL— DCH状态下的 E-DCH调度业务传输过程； 图 2是 CCCH映射到 E-DCH上的传输过程；
图 3是本发明 UE编制和寻址方法的流程图；
图 4是根据本发明一实施例 CCCH传输过程示意图。
本发明的较佳实施方式
本发明基于现有系统中的随机接入算法。 在现有 TD-SCDMA (时分同步 码分多址） 系统中， E-RUCCH和传统的 PRACH (物理随机接入信道）共用 系统中的随机接入信道资源， 2种随机接入通过同步码进行区分。 小区中的 同步码被划分成 2组，一组专用于 PRACH接入； 另一组专用于 E-RUCCH接 入。 系统可以配置多条 FPACH信道， 一条 FPACH信道与多条随机接入信道 关联。
UE发出 E-DCH专用的同步码后， 根据以下规则选择一条 FPACH侦听 确认信息。
规则一： 上行同步码和 FPACH信道号的对应关系满足： i = N mod M 其中 N代表同步码编号、 M代表 UE使用的随机接入资源配置实例中可 用的 FPACH信道总数、 i表示被选的 FPACH的信道号。
Node B检测到 UE的同步码后，在 FPACH信道上向 UE发送确认， Node B在一个子帧中在一条 FPACH信道上只能确认一个 UE, FPACH的选择也按 照规则一得到。 FPACH和 E-RUCCH信道之间的关系满足：
6 180900638 规则二： FPACHi的子帧号 SFN'和 PRACH信道号的关系满足：（SFN'mod
LEi)=nE-RUccHi;
nE- UCCHi =0，…， E-RUCCHi ~ 1 ;
其中 N RUCCHl是与第 i个 FPACH相关的 E-RUCCH信道的个数，
NE-RUCCH!不大于 LEi; LEi是 E-RUCCH传输块长度，一般取值为 1、 2 (单位： 子帧）； SFN'是终端在 FPACHi上收到确认时的系统子帧号， mod为模运算。
UE 收到确认信息后， 按照规则二选择一条 E-RUCCH信道， 在收到 FPACH确认后的第二个子帧中发送随机接入消息。 当 E-RUCCH传输块长度 大于 1且第二个子帧的子帧号为奇数时， 再等待一子帧发射。
以上具体可以参考 3GPP物理层协议 TS25.224。 从以上随机接入过程使 用的规则 2可以看出， 在一个子帧中， 一条 FPACH信道只能确认一个 UE的 接入，因而与一条 FPACH信道相关联的 E-RUCCH信道理论上不会发生资源 冲突， 即： 一条 E-RUCCH信道在同一时刻只可能被一个 UE使用。
本发明将 E-RNTI与 E-RUCCH信道建立关联， 同一公共 E-RNTI在同一 时间也只可能被一个 UE使用，从而避免 1个以上的 UE使用同一公共 E-RNTI 而造成的公共 E-RNTI的冲突， 如图 3所述， 具体为：
310, 在小区内分配一个或多个公共 E-RNTI, 并与随机接入信道资源相 关联， 使得每条增强随机接入上行控制信道 E-RUCCH对应一个或多个公共 E-RNTI;
其中，公共 E-RNTI资源由 Node B分配；公共 E-RNTI将被小区内的 UE 共享。
公共 E-RNTI及其与 E-RUCCH信道的对应关系在系统消息中广播； 同一载波上各 E-RUCCH对应的公共 E-RNTI互不相同， 不同载波上各 E-RUCCH对应的公共 E-RNTI可以相同、 也可以不同。
320, 当 UE选择了一条 E-RUCCH发起上行随机接入时， 在 E-RUCCH 中填充 UE的 E-RNTI, 其中填充的 E-RNTI是与该 E-RUCCH信道相关联的 公共 E-RNTI;
7 180900638 当一条 E-RUCCH 信道对应多个公共 E-RNTI 时， UE 选择了一条 E-RUCCH后，可以按照某种规则选择与该 E-RUCCH关联的多个公共 E-RNTI 中的一个， 公共 E-RNTI的选择规则可以通过协议约定， 可以为：
1 )通过 UE的自身的标识（ ID )来选择公共 E-RNTI: 比如 IMSI mod K = k, 其中 IMSI (国际移动用户识别码)是 UE的 ID、 K是与该 E-RUCCH信道关 联的公共 E-RNTI个数， k就是 UE使用的公共 E-RNTI的序号；
2 )根据当前的子帧号选择 E-RNTI, 比如 SFN' mod K = k, 其中 SFN，是 UE发送 E-RUCCH的子帧号（如果 E-RUCCH跨越 2个子帧， 那么取第一子 帧的子帧号 ) , K是与该 E-RUCCH信道关联的公共 E-RNTI个数， k就是 UE使用的公共 E-RNTI的序号；
3 ) UE随机选择一个公共 E-RNTI作为自己的 E-RNTI。
330, Node B 收到 UE通过 E-RUCCH发送的上行随机接入后， 通过 E-AGCH向公共 E-RNTI用户 （即使用公共 E-RNTI的 UE )进行资源授权， 其中， E-AGCH信道和 UE的 E-RUCCH信道之间有确定的时序关系。
公共 E-RNTI冲突解决后， 还需要解决 E-AGCH信道如何寻址 UE的问 题。小区内分配 1条或多条 E-AGCH信道用于 CELL— FACH状态下的 E-DCH 传输时的授权， 该一条或多条 E-AGCH信道由 Node B在小区 E-AGCH资源 池中选择一个或多个 E-AGCH信道， 这些信道可以和 CELL— DCH状态下的 E-DCH传输共享资源， 并由高层在系统消息中广播。
Node B收到 E-RUCCH后向公共 E-RNTI用户授权资源时 , E-AGCH信 道使用公共 E-RNTI寻址 UE, 并且 E-AGCH信道与该 UE的最近一次发送的 E-RUCCH有确定的时序关系， 该时序关系由高层配置、 或协议约定、 或通过 E-AGCH信道指示。
Node B通过 E-AGCH信道寻址 UE的方法具体包括：
1 ) E-AGCH信道的 CRC字段中包含 UE的 E-RNTI;
如 CELL— DCH状态下进行 E-DCH传输一样， 当 UE在 E-RUCCH信道 上发送调度请求时， UE会带上自己的 E-RNTI, 即 UE在公共 E-RNTI中选择
8 180900638 的 E-RNTI。 Node B会在 E-AGCH信道的 CRC (循环冗余校验 )字段中包含 UE的 E-RNTI信息。
2 ) E-AGCH信道和 UE的 E-RUCCH信道之间有确定的时序关系， UE 通过该时序关系来识别 E-AGCH信道是否发向自己。
由于 E-RUCCH资源是小区内 UE时分共享的， 这也意味着小区内多个 UE会时分共享一个公共 E-RNTI, 因而可以通过 E-AGCH和 E-RUCCH信道 之间建立时序关系来确定到底发给哪个 UE的。 E-AGCH和 E-RUCCH之间可 以基于固定的时序关系 （方法 1 )或灵活的时序关系 （方法 2 ) 。
方法 1： 由高层配置或通过协议约定 E-AGCH授权和 E-RUCCH调度请 求之间的时序关系， 比如两者间隔多少子帧、 或间隔多少时隙。 UE在成功发 出 E-RUCCH信道后， 在规定的时序 （即高层配置或协议约定的时序）上检 测 E-AGCH信道， 如果该 E-AGCH信道包含 UE 自己所选的 E-RNTI, 就认 为是发给自己的； 如果没有检测到， 则说明本次授权申请没有成功， UE可以 考虑重新发起调度请求。
方法 2: 在 E-AGCH信道上指示本次授权针对哪个子帧中的 E-RUCCH 上的调度请求， UE需要在发起调度请求后， 即发出 E-RUCCH信道后， 连续 检测 E-AGCH信道， 如果 E-AGCH信道上包含了 UE 自己选择的 E-RNTI, 还需要根据其中的时间指示判断是否是属于自己的授权。
为了避免兼容性问题， 时间指示可以利用 E-AGCH上的 EGSN字段， 当 然本发明不限于使用该字段进行时间指示， 在 CELL— DCH状态下， 该字段用 于对同一用户的 E-AGCH进行计数进而进行功率控制，在 CCCH传输时并不 会使用该字段。 该字段为 3bits , 本发明将其重用为时间指示， 用于指示 E-AGCH发送子帧和 E-RUCCH发送子帧之间的间隔， 具体方式可以为： E-RUCCH发送子帧号 = E-AGCH发送所在的子帧号 - EGSN指示的数 值 - 固定偏移量。
固定偏移量可以由协议约定或高层配置， 单位是子帧。 比如， 固定偏移 量为 7 , 当前 E-AGCH发送所在的子帧号为 240, EGSN为 5时， 本次授权针
9 180900638 对的 E-RUCCH发送子帧号是在 228。 即， 在子帧号为 228中使用该 E-RNTI 发送 E-RUCCH的用户将接收该 E-AGCH信道。 对于 UE来说， UE在发出 E-RUCCH后， 在固定偏移量所指示的子帧个数后开始连续监听 E-AGCH信 道， 如果 E-AGCH信道上包含自己选择的公共 E-RNTI, 并且根据时间指示 字段计算到的 E-RUCCH发送子帧号就是自己发送 E-RUCCH所在的子帧号 时， 就认为该 E-AGCH是发送给自己的。 由于系统子帧号是 0-255之间的整 数， 当等式后面为负数时， 应加上 255这个偏移量。
通过公共 E-RNTI与 E-RUCCH建立关联关系及建立 E-AGCH授权和 E-RUCCH调度请求之间的时序关系， 可以解决 CCCH信道映射到 E-DCH信 道上时由于缺少专用配置信息而无法编址和寻址 UE的问题。
目前 3GPP系统中的 TD-SCDMA已经基于多载波架构。 支持 E-DCH传 输的载波上， 都会建立随机接入资源 （包括同步码发送 UpPCH、 FPACH和 E-RUCCH 资源） 和 E-DCH 业务信道 E-PUCH及控制信道（ E-AGCH和 E-HICH )。 由于各载波的随机接入资源和 E-DCH控制信道都是独立配置的， 因而不同载波上 E-RUCCH信道相关联的公共 E-RNTI可以重用（即，可以配 置的相同）， 而同一载波上各 E-RUCCH信道相关联的公共 E-RNTI应各不相 同。
以上是原理说明， 下面根据具体实施例进行说明。
在本实例中， E-AGCH授权和 E-RUCCH调度请求之间的时序由高层配 置。
高层首先需要配置 CCCH映射到 E-DCH上时所需的信息元素， 与本发 明相关的信息包括：
公共 E-RNTI信息及其与 E-RUCCH信道的关联关系 （如表 1所示） 、 E-AGCH信道的信息 （如表 2所示 ) 。
表 1公共 E-RNTI与 E-RUCCH信道关联关系
Figure imgf000012_0001
10 180900638 »»>码资源信息 其中最多配置 4条码道。
当 E-RUCCH的传输块长度为 5ms时， 第
1条可以作为 E-RUCCH信道；
当 E-RUCCH的传输块长度为 10ms时，第
1、 第 2条可以作为 E-RUCCH信道。
»»>中间码
»»>FPACH配置信息
»»>公共 E-R TI 1..2 最多配置 2 组， 第一组用于第一条
E-RUCCH 信道； 第二组用于第二条
E-RUCCH信道
»»»E-R TI歹' J表 l..<maxE maxER TIperERUCCH： 每条 E-RUCCH
R TIperE 信道的 E-R TI最大个数，可以为 1，也可
RUCCH > 以根据需要配置多个
»»»>E-R TI信息 16比特的整数
表 1中与本发明相关的是 "公共 E-RNTI"信息元素及其下属的信息元素， 可以为每条 E-RUCCH信道配置一个 E-RNTI列表。每个列表中有 1个或多个 (个数用 maxERNTIperERUCCH表示）公共 E-RNTL公共 E-RNTI信息可以 由 Node B配置， 并通过 RNC组织在系统消息中广播。 目前系统消息中针对 主载波有最多 16个随机接入资源配置实例，每个配置实例中都应具有表 1所 示的信息元素； 辅载波上的配置和主载波上的配置方法相同。
表 2 E-AGCH信道信息
Figure imgf000013_0001
E-AGCH信道资源由 Node B从小区公共 E-AGCH资源池中选择， 并通 过 RNC组织后在系统消息中广播。 Te-agch是 E-RUCCH调度请求和 E-AGCH 授权之间的时间间隔， 它反映了系统的调度能力和调度频度， 该值可以由 Node B选择也可以由 RNC配置， 最终也在系统消息中广播。 如果由 RNC选 择的话， Te-agch 需要同时配置给 Node B。 当小区内多个频点上允许进行 CELL FACH状态下的 E-DCH传输时，应分别配置多个频点上的 E-AGCH信 道资源。
11 180900638 UE发起 CCCH传输前， 需要获取以上相关信息。
图 4是一个具体的 CCCH数据传输过程， 该过程基于的前提是小区支持 CCCH映射到 E-DCH上传输， 且 UE具有 E-DCH传输能力， 具体包含如下 步骤：
401 : UE需要发起 RRC连接时， UE选择一个载波， 并选择该载波上专 用于 E-RUCCH接入的同步码， 在可用的 UpPCH子信道上发送该同步码； UE按照规则一选择一条 FPACH信道， 记为 FPACHi。
402: Node B检测到同步码后， 通过规则 1选择了 FPACHi信道， 并在 满足规则 2的子帧上发送确认。
403: UE按照规则 2选择与 FPACHi相关联的第 n条 E-RUCCH信道。 根据系统信息选择一个公共 E-RNTI,当该条 E-RUCCH只与一个公共 E-RNTI 关联时， UE使用该公共 E-RNTI; 当该条 E-RUCCH与多个公共 E-RNTI关联 时， UE按照协议约定的规则选择一个公共 E-RNTI。 UE填充 E-RUCCH信道 中的信息， 并带上所选的公共 E-RNTI。
404: Node B接收到 E-RUCCH信道后， Node B在之后的第 Te-agch个 子帧上其中一条公共 E-AGCH信道上发送资源授权信息 （这里也可以通过 E-AGCH信道分配专用的 E-RNTI ) , 此时 UE可以按同样的时序约定接收指 向自己所选 E-RNTI的 E-AGCH信道。
405: UE在发出 E-RUCCH后的第 Te-agch个子帧上检测 E-AGCH信道， 当 E-AGCH信道含有指向自己的 E-RNTI (即包含 UE公共的 E-RNTI )后， 在授权的资源上发送数据，此处是发送映射到 CCCH逻辑信道上的初始 RRC 信令， UE还可以根据数据量情况在数据帧中携带调度信息。
406: Node B在确定的定时偏移上进行确认。
407: Node B将接收的 E-DCH数据转发给 RNC。
其中， 步骤 405中， 如果 UE没有检测到指向自己的 E-AGCH信道， 表 明本次接入失败， UE需要重新发起随机接入过程。
工业实用性
12 180900638 本发明利用现有系统中的随机接入算法中各信道之间的关系来设计寻址 方法 ,使公共 E-RNTI与 E-RUCCH信道相绑定、使 E-AGCH授权和 E-RUCCH 信道建立时序关系， 这样可以达到唯一识别一个用户的目的。 本发明基于现 有随机接入流程和 E-DCH传输流程， 简单可用。
13 180900638

Claims

权 利 要 求 书
1、 一种增强-专用传输信道传输时用户终端的编址和寻址方法， 应用在 小区—前向接入信道 CELL— FACH状态下在增强-专用传输信道上传输公共控 制信道时， 其中，
在小区内分配一个或多个公共增强 -无线网络临时标识 E-RNTI,—条增 强随机接入上行控制信道 E-RUCCH对应一个或多个公共 E-RNTI;
用户终端 UE选择一条 E-RUCCH信道向基站发起上行随机接入， 其中， 所述 E-RUCCH中携带所述 UE的 E-RNTI, 该 E-RNTI是该 E-RUCCH信道 对应的公共 E-RNTI;
基站收到 E-RUCCH信道后， 使用增强 -绝对授权信道 E-AGCH信道对 该 UE进行资源授权， 所述 E-AGCH信道中携带所述 UE的公共 E-RNTI, 并 且所述 E-AGCH信道与该 UE发送的所述 E-RUCCH有确定的时序关系。
2、 如权利要求 1所述的方法， 其中， 在系统消息中广播所述 E-RUCCH 信道与公共 E-RNTI的对应关系。
3、 如权利要求 1所述的方法， 其中， 同一载波上的各 E-RUCCH之间对 应的公共 E-RNTI互不相同， 不同载波上的 E-RUCCH对应的公共 E-RNTI相 同或不同。
4、 如权利要求 1或 2或 3所述的方法， 其中， 如果所述 E-RUCCH对应 多个公共 E-RNTI, 所述 UE的 RNTI是所述 UE从所述 E-RUCCH对应的多 个公共 E-RNTI中随机选择或按照预定规则选择的一个公共 E-RNTL
5、 如权利要求 4所述的方法， 其中， 所述预定规则为如下任一种： 根据 UE的标识或 UE发送 E-RUCCH的子帧号选择公共 E-RNTL
6、 如权利要求 5 所述的方法， 其中， 将所述 UE 的标识或 UE发送 所得结果为 UE选择的公共 E-RNTI的序号。
7、 如权利要求 1或 2或 3所述的方法， 其中， 所述 E-AGCH信道与该 UE发送的 E-RUCCH之间的时序关系由高层配置、 或协议约定、 或通过
14 180900638 E-AGCH信道指示。
8、 如权利要求 7所述的方法， 其中， 所述 E-AGCH信道与该用户终端 发送的 E-RUCCH之间的时序关系由高层配置或协议约定时，所述 UE在发出 E-RUCCH信道后， 在高层配置或协议约定的时序上检测 E-AGCH信道， 如 果该 E-AGCH信道包含所述 UE的公共 E-RNTI, 则认为该 E-AGCH信道发 向所述 UE。
9、 如权利要求 7所述的方法， 其中， 所述 E-AGCH信道与该用户终端 使用的 E-RUCCH之间的时序关系由 E-AGCH信道指示时， 所述 UE发出所 述 E-RUCCH信道后， 检测所述 E-AGCH信道， 如果所述 E-AGCH信道上包 含所述 UE的公共 E-RNTI,进一步根据所述 E-AGCH信道的时间指示判断该 E-AGCH信道是否是发向所述 UE。
10、 如权利要求 9 所述的方法， 其中， 所述 UE根据时间指示判断该 E-AGCH信道是否是发向 UE具体指， 所述 E-AGCH信道上包含一时间指示 字段， 指示 E-AGCH发送子帧和 E-RUCCH信道发送子帧之间的间隔， UE 根据时间指示字段计算出 E-RUCCH发送子帧号，与 UE发送 E-RUCCH所在 的子帧号相比较， 二者相同时， 判断该 E-AGCH信道是发向所述 UE。
15 180900638
PCT/CN2009/070533 2008-02-25 2009-02-25 增强-专用传输信道传输时用户终端的编址和寻址方法 WO2009105997A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HK10108493.3A HK1142182B (zh) 2008-02-25 2009-02-25 增强-專用傳輸信道傳輸時用戶的終端的編址和尋址方法
CN200980102677.3A CN101926105B (zh) 2008-02-25 2009-02-25 增强-专用传输信道传输时用户终端的编址和寻址方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810080621.X 2008-02-25
CN200810080621A CN101521946A (zh) 2008-02-25 2008-02-25 增强-专用传输信道传输时用户终端的编址和寻址方法

Publications (1)

Publication Number Publication Date
WO2009105997A1 true WO2009105997A1 (zh) 2009-09-03

Family

ID=41015538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/070533 WO2009105997A1 (zh) 2008-02-25 2009-02-25 增强-专用传输信道传输时用户终端的编址和寻址方法

Country Status (2)

Country Link
CN (2) CN101521946A (zh)
WO (1) WO2009105997A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102065532A (zh) * 2009-11-17 2011-05-18 中兴通讯股份有限公司 信息发送方法及上层网元

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101835269A (zh) * 2010-03-26 2010-09-15 中兴通讯股份有限公司 一种共享信道上行rrc信令传输方法和系统
CN102378394B (zh) 2010-08-12 2015-04-15 华为技术有限公司 一种网络连接方法和系统
CN102685918B (zh) * 2011-03-08 2015-06-24 鼎桥通信技术有限公司 一种网络接入方法
CN102740262B (zh) * 2011-04-13 2014-12-31 华为技术有限公司 数据和/或信令发送、接收方法及终端、基站控制器、基站
CN104349477A (zh) * 2013-08-08 2015-02-11 华为技术有限公司 调度方法及装置
WO2016107000A1 (zh) * 2014-12-31 2016-07-07 华为技术有限公司 一种状态迁移的方法、装置及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1182510A (zh) * 1996-03-15 1998-05-20 Ntt移动通信网株式会社 移动通信系统
CN1379600A (zh) * 2001-04-04 2002-11-13 西门子信息通讯网络公司 移动系统中提供多用户共享无线资源的分组服务的方法
CN1842994A (zh) * 2003-07-04 2006-10-04 硅系统设计公司 在连接到电信网络的站之间建立链路的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0602597A (pt) * 2005-03-29 2007-04-03 Ntt Docomo Inc método de controle de velocidade de transmissão, estação móvel e estação rádio base

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1182510A (zh) * 1996-03-15 1998-05-20 Ntt移动通信网株式会社 移动通信系统
CN1379600A (zh) * 2001-04-04 2002-11-13 西门子信息通讯网络公司 移动系统中提供多用户共享无线资源的分组服务的方法
CN1842994A (zh) * 2003-07-04 2006-10-04 硅系统设计公司 在连接到电信网络的站之间建立链路的方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102065532A (zh) * 2009-11-17 2011-05-18 中兴通讯股份有限公司 信息发送方法及上层网元

Also Published As

Publication number Publication date
HK1142182A1 (zh) 2010-11-26
CN101521946A (zh) 2009-09-02
CN101926105B (zh) 2013-03-27
CN101926105A (zh) 2010-12-22

Similar Documents

Publication Publication Date Title
US10039065B2 (en) State transition procedure in a wireless network
JP4864096B2 (ja) １対多サービス通信
JP4975823B2 (ja) 無線通信システムでのランダムアクセス遂行方法
US8432812B2 (en) Method of performing random access procedure in wireless communication system
JP4523072B2 (ja) 上り接続のリディレクション方法
JP4917107B2 (ja) 移動通信システムでの応答情報伝送方法
EP2119051B1 (en) Method and apparatus for detecting contention during random access procedure in a mobile communication system
EP2129147B1 (en) A method for realizing fast handover in enhanced uplink
CN101489305B (zh) 上行数据传输方法、通信系统及装置
EP3122131B1 (en) Terminal device, integrated circuit, and wireless communication method
TW201922036A (zh) 資料提前傳送方法及使用者設備
CN101340714B (zh) 时分同步码分多址上行增强系统的随机接入方法
CN111511036A (zh) 针对系统信息请求的随机接入程序的方法和设备
JP2011508511A (ja) 移動体通信ネットワークにおける方法と装置
TW201524149A (zh) 無縣通信競爭式存取中控制上鏈反饋資訊方法及裝置
WO2009105997A1 (zh) 增强-专用传输信道传输时用户终端的编址和寻址方法
KR100992780B1 (ko) 랜덤 액세스 절차를 수행하는 방법
CN103220081B (zh) 冲突检测方法、网络侧设备及用户设备
WO2010017719A1 (zh) 小区重选指示的发送方法和终端
MX2012003776A (es) Metodo y sistema para mapear un canal logico a flujo de control de acceso de medios.
HK1142182B (zh) 增强-專用傳輸信道傳輸時用戶的終端的編址和尋址方法
HK1134616A (zh) 一種增强上行鏈路實現快速切換的方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980102677.3

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09714814

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09714814

Country of ref document: EP

Kind code of ref document: A1