WO2014067039A1 - Transmission method, user equipment, radio network controller and base station - Google Patents

Abstract

Disclosed are a transmission method, user equipment (UE), radio network controller (RNC) and base station, the method comprising: receiving a system message transmitted by an RNC, the system message containing at least one first cell and at least one second cell, the first cell carrying a PRACH channel indicator for indicating a PRACH channel corresponding to the first cell, and the second cell carrying different PRACH channel information; determining a corresponding first cell in the at least one first cell according to the capability of a UE; and acquiring the PRACH channel information from the corresponding second cell in the at least one second cell according to the PRACH channel indicator carried in the corresponding first cell determined by the UE, so that the same PRACH channel information will not be carried duplicated in different cells, thus saving the system message space, improving resource utilization, and reducing the time delay of reading a system message by the UE.

Description

 Transmission method, user equipment, radio network controller and base station

 The present invention relates to the field of communications, and more particularly to a transmission method, a radio network controller and a base station. Background technique

 In the communication system, in order to improve the data transmission efficiency of the CELL_FACH state UE, a plurality of features are introduced. For example, the downlink-triggered HS-DPCCH (Dedicated Physical Control Channel (uplink) for HS-DSCH (High Speed Downlink Shared Channel), HS-DSCH uplink control channel) transmission (DL triggered HS-DPCCH transmission) Back to PRACH (Physical Random Request) access (Fallback to R99 PRACH), TTI (Transmission Time Interval) alignment, interference control, or 2ms and 10ms TTI coexistence And other characteristics.

 The UE in the CELL_FACH (Cell Forward Access Channel) state selects the corresponding PRACH channel and the available signature according to its own capabilities before transmitting the uplink data; the UE transmits the preamble with the selected signature on the selected PRACH channel. The base station can obtain the capability of the UE according to the signature monitored on the PRACH channel. It should be noted that the PRACH channel and available signature information are sent by the RNC to the base station and the UE.

 However, in the transmission mode of the system message of the existing mechanism, each cell of the system message carries channel information. For example, the cell is configured with two PRACH channels, and the available PRACH channels and available signatures are divided into three types, corresponding to three cells. The system message includes three cells, and the channel information of two PRACH channels is carried in all three cells. It can be seen that the channel information of the same PRACH channel is rewritten twice, and the channel information of each PRACH channel takes up a large space, such as the preamble scrambling code occupying 4 bits and the AICH (Acquired Indicator Channel). The channel occupies 8bit and so on.

Therefore, the system message takes up a large space and the resources are wasted, which also causes the UE to read the delay of the system message time, thereby delaying the UE from accessing the network. Summary of the invention The embodiments of the present invention provide a transmission method, a radio network controller, and a base station, which can save space for system messages, improve resource utilization, and reduce delays for user equipment to read system messages.

 In a first aspect, a transmission method is provided, the method comprising: receiving a radio network controller

a system message sent by the RNC, the system message includes at least one first cell and at least one second cell, where the first cell carries a physical random access channel PRACH channel indication, and the PRACH channel indication is used to indicate a PRACH channel corresponding to a cell, the different second cells carrying different PRACH channel information; determining a corresponding first cell in the at least one first cell according to a capability of the user equipment UE; Determining the PRACH channel carried by the corresponding first cell indicates that the corresponding second cell in the at least one second cell acquires the PRACH channel information.

 With reference to the first aspect, in a first possible implementation, the specific implementation may be: the first cell further carries a list of available signatures corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and The indicator channel AICH channel code is captured.

 With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the determining, according to a capability of the UE, a corresponding first cell in the at least one first cell, The specific implementation may be: determining a corresponding first cell in the at least one first cell according to the capability of the UE and the length of the transmission time interval TTI selected by the UE.

 With reference to the first possible implementation of the first aspect or the second possible implementation of the first aspect, in a third possible implementation, the at least one first After the corresponding first cell in the cell, the specific implementation may be: selecting a signature in the list of available signatures corresponding to the PRACH channel; carrying in the corresponding first cell determined according to the UE The PRACH channel indicates that after the corresponding second cell of the at least one second cell acquires the PRACH channel information, the specific implementation may be:: according to the PRACH channel information and the selected signature, to the base station on the corresponding PRACH channel. Send the preamble sequence.

With reference to the first aspect, or the first possible implementation of the first aspect, to the third possible implementation of the first aspect, in a fourth possible implementation, the specific implementation may be: The first cell corresponds to a type of the random access preamble control parameter, the type of the random access preamble control parameter includes a random access preamble control parameter extension table, and the random access preamble control parameter extension table includes at least one random Accessing preamble control parameter extensions, each of the random access preamble control parameter extensions including a list of available signatures corresponding to a PRACH channel and an indication of a The PRACH channel indication of the PRACH channel; wherein the different first cells correspond to different types of random access preamble control parameters.

 With reference to the first aspect, or the first possible implementation manner of the first aspect, to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the specific implementation may be: The PRACH channel is indicated as a bitmap or a Boolean type.

 With reference to the first aspect, or the first possible implementation manner of the first aspect, to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the specific implementation may be: The capability of the UE includes at least one of the following: support for activating and deactivating a hybrid automatic repeat request, supporting transmission time interval alignment, and supporting transmission time interval coexistence.

 With reference to the first aspect, or the first possible implementation of the first aspect, to the sixth possible implementation manner of the first aspect, in a seventh possible implementation, the specific implementation may be: The capabilities of the UE include support for transmission time interval ΤΉ coexistence and selection of 10ms TTI, or support for coexistence and selection of 2ms TTI, or support for activating and deactivating hybrid automatic repeat request and ΤΉ alignment and support for coexistence and selection of 2ms TTI.

 A second aspect provides a transmission method, the method comprising: generating a system message, where the system message includes at least one first cell and at least one second cell, where the first cell carries a physical random access channel a PRACH channel indication, where the PRACH channel indication is used to indicate a PRACH channel corresponding to the first cell, and different second cells carry different PRACH channel information; and send the system message to the UE, so that the UE Determining, according to the capability of the UE, a corresponding first cell of the at least one first cell, and indicating, according to the UE, the PRACH channel indication carried by the corresponding first cell in the at least one second cell The corresponding second cell acquires the PRACH channel information.

 With reference to the second aspect, in a first possible implementation, the specific implementation may be: the first cell further carries a list of available signatures corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and The indicator channel AICH channel code is captured, so that the UE selects a signature in the available signature list corresponding to the PRACH channel, and sends a preamble sequence to the base station on the corresponding PRACH channel according to the PRACH channel information and the selected signature.

With reference to a possible implementation manner of the second aspect, in a second possible implementation, the specific implementation may be: generating a physical shared channel reconfiguration request message, where the physical shared channel reconfiguration request message includes the at least one Transmitting, by the first cell and the at least one second cell, the physical shared channel reconfiguration request message to the base station, so that the base station carries according to the at least one first cell The information of the band and the information carried by the at least one second cell determine the capability of the UE transmitting the preamble sequence on the corresponding PRACH channel and/or the length of the transmission time interval selected by the UE.

 With reference to the second aspect or the first possible implementation manner or the second possible implementation manner of the second aspect, in a third possible implementation, the specific implementation may be: the first cell corresponding to random access a type of the preamble control parameter, the type of the random access preamble control parameter includes a random access preamble control parameter extension table, where the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, each of which The random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating a PRACH channel; wherein different first cells correspond to different types of random access preamble control parameters.

 With reference to the second aspect, or the first possible implementation manner of the second aspect, to the third possible implementation manner of the second aspect, in a fourth possible implementation manner, the specific implementation may be: The PRACH channel is indicated as a bitmap or a Boolean type.

 With reference to the second aspect, or the first possible implementation manner of the second aspect, to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner, the specific implementation may be: The capability of the UE includes at least one of the following: support for activating and deactivating a hybrid automatic repeat request, supporting transmission time interval alignment, and supporting transmission time interval coexistence.

 In a third aspect, a transmission method is provided, including: receiving a physical shared channel reconfiguration request message sent by a radio network controller RNC, where the physical shared channel reconfiguration request message includes at least one first cell and at least one second a cell, the first cell carries a physical random access channel PRACH channel indication, the PRACH channel indication is used to indicate a PRACH channel corresponding to the first cell, and the different second cells carry different PRACH channel information; The channel carried by the first cell indicates that the PRACH channel information is acquired in the corresponding second cell.

 With reference to the third aspect, in a first possible implementation, the specific implementation may be: the first cell further carries a list of available signatures corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and The pilot channel AICH channel code is received, and the preamble sequence transmitted by the user equipment UE with the signature selected by the UE is received on the corresponding PRACH channel; according to the PRACH channel information and the signature in the available signature list, and the UE selected The signature determines the capabilities of the UE and/or the length of the transmission time interval selected by the UE.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation, the specific implementation may be: the first cell corresponding to a class of random access preamble control parameters The type of the random access preamble control parameter includes a random access preamble control parameter extension table, where the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, and each of the random accesses The preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating a PRACH channel; wherein different first cells correspond to different types of random access preamble control parameters.

 With reference to the third aspect or the first possible implementation manner or the second possible implementation manner of the third aspect, in a third possible implementation manner, the specific implementation may be: the PRACH channel indication is a bitmap or a Boolean type.

 With reference to the third aspect, or the first possible implementation manner of the third aspect, the third possible implementation manner, in a fourth possible implementation manner, the capability of the UE includes at least the following One: Supports activation and deactivation of hybrid automatic repeat request, supports ΤΉ alignment, and supports TTI coexistence.

 A fourth aspect provides a user equipment, where the user equipment includes: a receiving unit, configured to receive a system message sent by a radio network controller RNC, where the system message includes at least one first cell and at least one second cell The first cell carries a physical random access channel PRACH channel indication, the PRACH channel indication is used to indicate a PRACH channel corresponding to the first cell, and different second cells carry different PRACH channel information; a unit, configured to determine, according to a capability of the UE, a corresponding first cell in the at least one first cell received by the receiving unit, and an acquiring unit, configured to determine, according to the determining unit, the corresponding first message The PRACH channel carried by the element indicates that the corresponding second cell in the at least one second cell acquires the PRACH channel information.

 With reference to the fourth aspect, in a first possible implementation, the first cell further carries a list of available signatures corresponding to a PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and a captured indicator channel AICH channel. code.

 With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the determining unit is specifically configured to: according to a capability of the user equipment UE and a transmission time interval selected by the UE The length of the 确定 determines a corresponding first cell of the at least one first cell.

With the first possible implementation of the fourth aspect or the second possible implementation of the fourth aspect, in a third possible implementation, the user equipment further includes a selecting unit, where the selecting unit is used by Selecting a signature in the list of available signatures corresponding to the PRACH channel; the user equipment further includes a sending unit, where the sending unit is configured to use, according to the PRACH channel The information and the selected signature transmit a preamble sequence to the base station on the corresponding PRACH channel.

 In combination with the fourth aspect, or the first possible implementation manner of the fourth aspect, the third possible implementation manner, in the fourth possible implementation manner, the first Entering a type of the preamble control parameter, the type of the random access preamble control parameter includes a random access preamble control parameter extension table, and the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, each The random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating a PRACH channel; wherein different first cells correspond to different types of random access preamble control parameters .

 With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, the fourth possible implementation manner, in the fifth possible implementation manner, the PRACH channel indication is a bitmap or Boolean.

 With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, the fifth possible implementation manner, in the sixth possible implementation manner, the capability of the UE includes at least the following One: Supports activation and deactivation of hybrid automatic repeat request, supports ΤΉ alignment, and supports ΤΉ coexistence.

 With reference to the fourth aspect, or any one of the first possible implementation manner of the fourth aspect to the sixth possible implementation manner, in a seventh possible implementation manner, the capability of the UE includes supporting TTI coexistence. And lOms TTI is selected, or TTI coexistence is supported and 2ms TTI is selected, or hybrid automatic retransmission request and ΤΉ alignment are supported and deactivated and ΤΉ coexistence is supported and 2ms 选择 is selected.

 In a fifth aspect, a radio network controller is provided, where the radio network controller includes: a generating unit, configured to generate a system message, where the system message includes at least one first cell and at least one second cell, The first cell carries a physical random access channel PRACH channel indication, the PRACH channel indication is used to indicate a PRACH channel corresponding to the first cell, and different second cells carry different PRACH channel information; Transmitting, to the UE, the system message generated by the generating unit, so that the UE determines a corresponding first cell in the at least one first cell according to the capability of the UE, according to the determined by the UE The PRACH channel carried by the corresponding first cell indicates that the corresponding second cell in the at least one second cell acquires the PRACH channel information.

 With reference to the fifth aspect, in a first possible implementation manner, the first cell is further carried

a list of available signatures corresponding to the PRACH channel, the PRACH channel information including a PRACH channel a preamble scrambling code and a captured indication channel AICH channel code, so that the UE selects a signature in the available signature list corresponding to the PRACH channel, and according to the PRACH channel information and the selected signature, to the base station on the corresponding PRACH channel. Send the preamble sequence.

 With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the generating unit is further configured to: generate a physical shared channel reconfiguration request message, where the physical shared channel reconfiguration request message includes The sending unit is further configured to: send the physical shared channel reconfiguration request message to the base station, so that the base station is configured according to the at least one first The information carried by the cell and the information carried by the at least one second cell determine the capability of the UE transmitting the preamble sequence on the corresponding PRACH channel and/or the transmission time interval length selected by the UE.

 With reference to the fifth aspect, or the first possible implementation manner or the second possible implementation manner of the fifth aspect, in a third possible implementation manner, the first cell corresponds to a type of random access preamble control parameter The type of the random access preamble control parameter includes a random access preamble control parameter extension table, where the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, and each of the random access preambles The control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating a PRACH channel; wherein different first cells correspond to different types of random access preamble control parameters.

 With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, to any one of the third possible implementation manners, in a fourth possible implementation manner, the PRACH channel indication is a bitmap or Boolean.

 With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, the fourth possible implementation manner, in a fifth possible implementation manner, the capability of the UE includes at least the following One: Supports activation and deactivation of hybrid automatic repeat requests, supports ΤΉ alignment and supports TTI coexistence.

According to a sixth aspect, a base station is provided, the base station includes: a receiving unit, configured to receive a physical shared channel reconfiguration request message sent by a radio network controller RNC, where the physical shared channel reconfiguration request message includes at least one first And the at least one second cell, the first cell carries a physical random access channel PRACH channel indication, the PRACH channel indication is used to indicate a PRACH channel corresponding to the first cell, and the second cell is different And carrying the different PRACH channel information; the determining unit, configured to acquire the PRACH channel information in the corresponding second cell according to the channel indication carried by the first cell. With reference to the sixth aspect, in a first possible implementation manner, the first cell further carries

a list of available signatures corresponding to the PRACH channel, the PRACH channel information includes a PRACH channel preamble scrambling code and a captured indicator channel AICH channel code; the receiving unit is further configured to: at the corresponding PRACH channel, receive the user equipment, and use the UE to select The preamble sequence of the signature transmission; the determining unit is further configured to: determine the capability of the UE and/or the UE according to the PRACH channel information and the signature in the available signature list, and the signature selected by the UE The length of the selected TTI.

 With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the first cell corresponds to a type of a random access preamble control parameter, and the random access preamble control The parameter type includes a random access preamble control parameter extension table, the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, and each of the random access preamble control parameter extensions includes a PRACH channel. Corresponding list of available signatures and a PRACH channel indication indicating a PRACH channel; wherein different first cells correspond to different types of random access preamble control parameters.

 With reference to the sixth aspect or the first possible implementation manner of the sixth aspect or the second possible implementation manner, in a third possible implementation manner, the PRACH channel indication is a bitmap or a Boolean type.

 With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, the third possible implementation manner, in a fourth possible implementation manner, the capability of the UE includes at least the following One: Supports activation and deactivation of hybrid automatic repeat requests, support for ΤΉ alignment and support for coexistence.

 Based on the foregoing technical solution, the system message received by the UE from the RNC according to the foregoing technical solution includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and different second cells carry different PRACH channel information. The UE may determine, according to the capability of the UE, the corresponding first cell of the at least one first cell; and according to the PRACH channel indication carried by the corresponding first cell, obtain the first corresponding cell in the at least one second cell. The PRACH channel information corresponding to the cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving system message space, improving resource utilization, and reducing the delay of the UE reading system messages. DRAWINGS

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following will be The drawings to be used are described in a single manner. It is obvious that the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also perform without creative work. Other figures are obtained from these figures.

 1 is a flow chart of a transmission method according to an embodiment of the present invention.

 2 is a flow chart of a transmission method according to another embodiment of the present invention.

 3 is a flow chart of a transmission method according to another embodiment of the present invention.

 4 is a schematic flow chart of a process of a transmission method according to an embodiment of the present invention.

 FIG. 5 is a structural block diagram of a user equipment according to an embodiment of the present invention.

 6 is a structural block diagram of a radio network controller according to an embodiment of the present invention.

 FIG. 7 is a structural block diagram of a base station according to another embodiment of the present invention.

 Figure 8 is a block diagram of an apparatus in accordance with one embodiment of the present invention.

 FIG. 9 is a structural block diagram of a user equipment according to an embodiment of the present invention.

 FIG. 10 is a structural block diagram of a radio network controller according to an embodiment of the present invention.

 11 is a block diagram showing the structure of a base station according to another embodiment of the present invention. detailed description

 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

 It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile communication ("GSM") system, Code Division Multiple Access (Code Division Multiple Access) Called "CDMA" system, Wideband Code Division Multiple Access ("WCDMA") system, General Packet Radio Service ("General Packet Radio Service"), Long Term Evolution ( Long Term Evolution, the tube is called "LTE" system, LTE frequency division duplex (Frequency Division Duplex), LTE time division duplex (Time Division Duplex, "TDD"), general purpose The mobile communication system (Universal Mobile Telecommunication System, called "UMTS"), the Worldwide Interoperability for Microwave Access ("Wireless" called "WiMAX") communication system.

It should also be understood that in the embodiment of the present invention, the user equipment (User Equipment, the tube is called "UE") It can be called a terminal, a mobile station (Mobile Station, called "MS"), a mobile terminal (Mobile Terminal), etc., and the user equipment can pass through a radio access network (Radio Access Network, called "RAN"" ) communicating with one or more core networks, for example, the user device may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, the user device may also be portable, pocket, handheld Mobile computers built into the computer, or in-vehicle, that exchange voice and/or data with the wireless access network.

 In the embodiment of the present invention, the base station may be a base station (Base Transceiver Station, called "BTS") in GSM or CDMA, or may be a base station (NodeB, called "NB") in WCDMA, or may be The evolved base station (Evolutional Node B, referred to as "eNB or e-NodeB") in LTE is not limited in the present invention. For convenience of description, the following embodiments will be described by taking the base station NodeB as an example.

 1 is a flow chart of a transmission method according to an embodiment of the present invention. The method of Figure 1 is performed by a user equipment.

 101. Receive, by the RNC, a system message, where the system message includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and the PRACH channel indication is used to indicate a PRACH channel corresponding to the first cell. Different second cells carry different PRACH channel information.

 102. Determine, according to a capability of the UE, a corresponding first cell in the at least one first cell.

 103. Obtain PRACH channel information in a corresponding second cell of the at least one second cell according to the channel indication carried by the corresponding first cell determined by the UE.

 Based on the foregoing technical solution, the system message received by the UE from the RNC according to the foregoing technical solution includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and different second cells carry different PRACH channel information. The UE may determine, according to the capability of the UE, the corresponding first cell of the at least one first cell; and according to the PRACH channel indication carried by the corresponding first cell, obtain the first corresponding cell in the at least one second cell. The PRACH channel information corresponding to the cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving system message space, improving resource utilization, and reducing the delay of the UE reading system messages.

Optionally, as an embodiment, the first cell may further carry a list of available signatures corresponding to the PRACH channel, where the PRACH channel information may include a PRACH channel preamble scrambling code and an AICH channel code. Optionally, as another embodiment, in step 102, a corresponding first cell in the at least one first cell may be determined according to a capability of the UE and a transmission time interval length selected by the UE.

 Optionally, as another embodiment, in step 102, the capability of the UE may include at least one of the following: Support for Per HARQ process activation and de-activation, supporting TTI Support of TTI alignment or support 2ms/10ms TTI in a cell (Support of Concurrent deployment of 2ms and 10ms TTI in a cell). For example, the system message includes three first cells and two second cells, and the UE that supports 2ms/10ms TTI coexistence and selects 10ms TTI and the first first cell of the three first cells Corresponding (pre-negotiable or predefined), the UE acquires the PRACH channel indication in the first first cell; supports the 2ms/10ms TTI coexistence and selects the 2ms TTI UE and the 2nd of the 3 first cells Corresponding to the first cell, the UE acquires the PRACH channel indication in the second first cell; supports the activation and deactivation of the hybrid automatic repeat request and supports the support, aligns and supports the 2ms/10ms TTI coexistence and selects the 2msTTI The UE corresponds to the third first cell of the three first cells, and the UE acquires the PRACH channel indication at the third first cell.

 Optionally, as another embodiment, the PRACH channel indication may be a Boolean type. Alternatively, the PRACH channel indication can be a Bit Map. It should be noted that the PRACH channel indication in a first cell may indicate PRACH channel information of one second cell, and may also indicate PRACH channel information of multiple second cells, that is, the UE may be in multiple One PRACH channel is selected among the strip PRACH channels.

For example, the cell is configured with three PRACH channels, that is, the system message includes three second cells, and respectively carries PRACH channel information of three PRACH channels. The bitmap occupies 3 bits, 001 indicates the first PRACH channel, and the UE acquires the information of the first PRACH channel in the first second cell of the three second cells; 010 indicates the second PRACH channel, and the UE is at 3 The second second cell of the second cells acquires information of the second PRACH channel; 100 indicates the third PRACH channel, and the UE acquires the third second cell of the three second cells. The information of the three PRACH channels; 101 indicates the first PRACH channel and the third PRACH channel, and the UE acquires the information of the first PRACH channel and the third one from the first second cell of the three second cells. The second cell acquires information of the third PRACH channel; and so on. Assuming that there are three types of UEs in the cell, with the prior art, the PRACH channel information of the three PRACH channels will be rewritten twice. If the PRACH channel information of each PRACH channel only includes the PRACH channel preamble scrambling code and AICH The channel code, the PRACH channel preamble scrambling code occupies 4 bits, and the AICH channel code occupies 8 bits. The prior art system message occupies about (4+8) *2*3=72 bits more than the system message using the technical solution of the present invention. Alternatively, the PRACH channel indication may also adopt an implicit representation method. For example, the system message includes three second cells, that is, channel information including three RACH channels, and the system message further includes three first cells. If the PRACH channel indication of the first first cell of the three first cells indicates three RACH channels, the channel indication may not be explicitly included. By default, the first first cell sequentially instructs the first PRACH channel, the second PRACH channel, and the third PRACH channel, respectively.

 For another example, the system message includes two second cells. If the PRACH channel indication value read by the UE in the corresponding first cell is 1 (True), the UE acquires PRACH channel information in the first second cell of the 2 second cells; if the UE is in the corresponding The PRACH channel indication value read in the first cell is 0 (False), and the UE acquires PRACH channel information in the second second cell of the 2 second cells. Alternatively, the PRACH channel indication may also be adopted in an implicit manner. If the PRACH channel indication is not carried in the corresponding first cell, the UE acquires the PRACH channel in the first second cell of the 2 second cells. Information; if there is a PRACH channel indication in the corresponding first cell, the UE acquires PRACH channel information in the second second cell of the two second cells. Assuming that the cell has three types of UEs and the cell is configured with three first cells, with the prior art, the channel information of the two PRACH channels will be rewritten twice. If the channel information of each PRACH channel includes only the PRACH channel scrambling code and the AICH channel code, the PRACH channel scrambling code occupies 4 bits, and the AICH channel code occupies 8 bits, then the prior art system message is used instead of the system message using the technical solution of the present invention. It takes up about (4+8) *2*2=48bit.

 It is to be understood that the above examples are merely illustrative and are not intended to limit the scope of the invention.

Optionally, as another embodiment, in step 101, the RNC may send a system message by means of a broadcast. Each of the first cells in the system message corresponds to a type of random access preamble control parameter (PRACH), and different first cells correspond to different random access preambles. The type of the control parameter (the correspondence may be predefined), the type of the random access preamble control parameter includes a PRACH preamble control parameter extension list, and the random access preamble control parameter extension table includes at least one a random access preamble control parameter extension, each random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH indicating one PRACH channel Channel indication. In step 102, the UE may determine a corresponding first cell in the at least one first cell according to the correspondence between the capability of the UE and the information of the random access preamble control parameter type. Further, the UE may determine a corresponding first cell in the at least one first cell according to the capability of the UE and the correspondence between the TTI selected by the UE and the type of the random access preamble control parameter. The PRACH channel indication in this embodiment may be Boolean or bitmap, and the PRACH channel indication in each random access preamble control parameter extension indicates a channel.

 For example, the system message includes three first cells and three second cells, and the type of the random access preamble control parameter corresponding to the first first cell is Tpye 1 , and Tpye 1 coexists with the support 2 ms/10 ms TTI. And the UE that selects the 10ms TTI (referred to as the "first type UE") corresponds to, and the first type of UE can obtain the PRACH channel indication in the first first cell of the three first cells. The type of random access preamble control parameter Tpye 1 includes a random access preamble control parameter extension table Etable 1 , and the random access preamble control parameter extension table Etable 1 includes two random access preamble control parameter extensions, that is, the first type of UE may be in A PRACH channel is selected from two PRACH channels, and a random access procedure is initiated on the selected PRACH channel. The first random access preamble control parameter extension includes a PRACH channel indication, and indicates a first PRACH channel (ie, corresponding to the first second cell of the three second cells), and the first The available signature list corresponding to the PRACH channel Stable 1; the second random access preamble control parameter extension includes a PRACH channel indication, and indicates the second PRACH channel (ie, the second second of the three second cells) The element corresponds to), and the available signature list Stable 2 corresponding to the second PRACH channel.

 Similarly, the type of the random access preamble control parameter corresponding to the second first cell is Tpye 2,

Tpye 2 corresponds to a UE that supports a 2ms/10ms TTI and selects a 2ms TTI (the cylinder is called a "second type UE"), and the second type of UE can be the second first one of the three first cells. The element acquires a PRACH channel indication. The type of random access preamble control parameter Tpye 2 includes a random access preamble control parameter extension table Etable 2, and the random access preamble control parameter extension table Etable 2 includes one random access preamble control parameter extension, that is, a second type of UE is available. The PRACH channel is selected to be one. The random access preamble control parameter extension includes a PRACH channel indication, and indicates a first PRACH channel (ie, corresponding to a first second cell of the three second cells), and the first PRACH A list of available signatures corresponding to the channel, Stable 3. The type of the random access preamble control parameter corresponding to the third first cell is Tpye 3 , and the Tpye 3 is compatible with the per HARQ activation and deactivation and ΤΉ alignment and supports ΤΉ coexistence and selects the 2 ms TTI UE (the cylinder is called " Corresponding to the third type of UE"), the third type of UE can be obtained in the third first cell of the three first cells. PRACH channel indication. The type of random access preamble control parameter Tpye 3 includes a random access preamble control parameter extension table Etable 3, and the random access preamble control parameter extension table Etable 3 includes two random access preamble control parameter extensions, that is, available for the second type of UE. Select two PRACH channels. The first random access preamble control parameter extension includes a PRACH channel indication, and indicates a second PRACH channel (ie, corresponding to the first second cell of the three second cells), and the second The available signature list corresponding to the PRACH channel Stable 4; the second random access preamble control parameter extension includes a PRACH channel indication, and indicates the third PRACH channel (ie, the third second of the three second cells) The element corresponds to), and the available signature list Stable 5 corresponding to the third PRACH channel.

 It should be understood that the definition of the number of first cells and the UE of the first class UE, the second class or the third class in the above examples is merely exemplary and not limiting. It should also be understood that the type of the random access preamble control parameter in the embodiment of the present invention is not limited to which type of UE.

 Optionally, as another embodiment, after step 102, the UE selects one signature in the available signature list corresponding to the PRACH channel, and after step 103, the UE may be in the corresponding PRACH channel according to the PRACH channel information and the selected signature. The preamble sequence is sent to the base station.

 Further, the base station may detect the PRACH channel and the signature selected by the UE according to the Physical Shared Channel Reconfiguration Request sent by the RNC, and determine the TTI length and/or the capability of the UE selected by the UE. Since the delay in reading the system message by the UE is reduced, the UE is also prolonged when it accesses the network.

 With the above solution, the channel indication occupation space is smaller than the occupied space of the channel information, and the channel indication is used to indicate the PRACH channel corresponding to the first cell, that is, which PRACH channel (one or more) is indicated by the channel indication, thereby avoiding system message repetition. Carry the same PRACH channel information. In this way, the space of the system message is saved, the resource utilization is improved, and accordingly, the time for the UE to receive the system message is reduced, thereby reducing the delay for the UE to read the system message and the UE accessing the network.

 It should be understood that the above examples of the number of PRACH channels and the number of second cells are merely exemplary and are not limiting of the invention. It should also be noted that the manner of channel indication is not limited in the embodiment of the present invention. That is, regardless of the manner in which the PRACH channel corresponding to the first cell is indicated, it falls within the scope of the present invention.

 Embodiments of the present invention will be described in more detail below with reference to the example of FIG.

2 is a flow chart of a transmission method according to another embodiment of the present invention. The method of Figure 2 is performed by the RNC. And corresponds to the method of FIG. 1, and thus the description overlapping with the embodiment of FIG. 1 will be omitted as appropriate. 201. Generate a system message, where the system message includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and the PRACH channel indication is used to indicate a PRACH channel corresponding to the first cell, and different The two cells carry different PRACH channel information.

 202. Send a system message to the UE, so that the UE determines, according to the capability of the UE, the corresponding first cell in the at least one first cell, and according to the PRACH channel indication carried by the corresponding first cell determined by the UE, in the at least one second message. The corresponding second cell in the element acquires PRACH channel information.

 Based on the foregoing technical solution, the system message received by the UE from the RNC according to the foregoing technical solution includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and different second cells carry different PRACH channel information. The UE may determine, according to the capability of the UE, the corresponding first cell of the at least one first cell; and according to the PRACH channel indication carried by the corresponding first cell, obtain the first corresponding cell in the at least one second cell. The PRACH channel information corresponding to the cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving system message space, improving resource utilization, and reducing the delay of the UE reading system messages.

 Optionally, as an embodiment, the first cell may further carry an available signature list corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and a captured indicator channel AICH channel code, so that the UE corresponds to the PRACH channel. A signature is selected from the list of available signatures, and the preamble sequence is transmitted to the base station on the corresponding PRACH channel according to the PRACH channel information and the selected signature.

Optionally, as another embodiment, the RNC may further send a physical shared channel reconfiguration request message to the base station, where the physical shared channel reconfiguration request message includes the at least one first cell and the at least one second cell. In other words, the format of the physical shared channel reconfiguration request message may be consistent with the format of the above system message. In this way, the space for the physical shared channel reconfiguration request message can be saved. Further, the base station may determine the capability of the UE transmitting the preamble sequence and/or the TTI length selected by the UE on the corresponding PRACH channel according to the information carried by the at least one first cell and the information carried by the at least one second cell. Specifically, the base station receives, on the corresponding PRACH channel, a preamble sequence sent by the UE with the signature selected by the UE, and the base station determines the capability of the UE and/or the UE selection according to the PRACH channel information and the signature in the available signature list, and the signature selected by the UE. length. The base station knows that the channel information of the PRACH channel of the UE transmitting the preamble sequence and the signature selected by the UE may determine which one of the at least one first cell corresponds to the first cell according to the physical shared channel reconfiguration request message, that is, the capability of the UE and the UE The length of the selected TTI. Of course, the format of the physical shared channel reconfiguration request message can also adopt the prior art. At this time, the manner in which the base station determines the capability of the UE and/or the length of the UE selected by the UE may refer to the prior art. It should be understood that the format of the physical shared channel reconfiguration request message is not limited in the embodiment of the present invention.

 Optionally, as another embodiment, the first cell may correspond to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes a random access preamble control parameter extension table, and the random access preamble control parameter The extension table includes at least one random access preamble control parameter extension, and each random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating one PRACH channel. The different first cells correspond to different types of random access preamble control parameters. The implementation of the first cell corresponding to the random access preamble control parameter extension table is as described above, and details are not described herein again.

 Optionally, as another embodiment, the PRACH channel indication may be a bitmap or a Boolean type. The implementation of the channel indication as a bitmap or a Boolean type is as described above and will not be described here.

 Optionally, as another embodiment, the capability of the UE includes at least one of the following: support for activating and deactivating a hybrid automatic repeat request, supporting ΤΉ alignment and supporting ΤΉ coexistence. Specifically, the capabilities of the UE include support for coexistence and selection of a 10ms TTI, or support for coexistence and selection of 2ms, or support for activating and deactivating hybrid automatic repeat requests and ΤΉ alignment and supporting TTI coexistence and selecting 2ms ΤΉ.

 In the embodiment of the present invention, the channel indication occupied space is smaller than the occupied space of the channel information, and the channel indication is used to indicate the PRACH channel corresponding to the first cell, so as to prevent the system message from repeatedly carrying the same PRACH channel information. In this way, the space of the system message is saved, the resource utilization is improved, and accordingly, the time for the UE to receive the system message is reduced, thereby reducing the delay for the UE to read the system message and the UE accessing the network.

 It should be understood that the manner in which the PRACH channel is indicated in the embodiment of the present invention is not limited. That is, regardless of the manner in which the PRACH channel corresponding to the first cell is indicated, it falls within the scope of the present invention.

 Embodiments of the present invention will be described in more detail below with reference to the example of FIG.

 3 is a flow chart of a transmission method according to another embodiment of the present invention. The method of Figure 3 is performed by a base station. And corresponds to the methods of Figs. 1 and 2, and therefore the description overlapping with the embodiment of Figs. 1 and 2 will be omitted as appropriate.

301. Receive a physical shared channel reconfiguration request message sent by the RNC, where the physical shared channel reconfiguration request message includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and the PRACH channel indication is used to Indicating a PRACH channel corresponding to the first cell, Different second cells carry different PRACH channel information.

 302. Obtain PRACH channel information in the corresponding second cell according to the channel indication carried by the first cell.

 Based on the foregoing technical solution, the physical shared channel reconfiguration request message received by the base station from the RNC includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication and the second is different. The cell carries different PRACH channel information. The base station acquires, according to the PRACH channel carried by the first cell, the corresponding second cell in the at least one second cell to obtain the PRACH channel information corresponding to the first cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving space for physical shared channel reconfiguration request messages and improving resource utilization.

 Optionally, as an embodiment, the first cell may further carry a list of available signatures corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and a captured indication channel AICH channel code. After step 301, the base station may receive the preamble sequence sent by the UE with the signature selected by the UE on the corresponding PRACH channel, and after step 302, the base station determines the UE according to the PRACH channel information and the signature in the available signature list, and the signature selected by the UE. Capability and / or UE selected TTI length. Correspondingly, the delay of the UE accessing the network is reduced.

 Optionally, as another embodiment, the first cell may correspond to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes a random access preamble control parameter extension table, and the random access preamble control parameter The extension table includes at least one random access preamble control parameter extension, and each random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating one PRACH channel. The different first cells correspond to different types of random access preamble control parameters. The implementation of the first cell corresponding to the random access preamble control parameter extension table is as described above, and details are not described herein again.

 Optionally, as another embodiment, the PRACH channel indication may be a bitmap or a Boolean type. The implementation of the channel indication as a bitmap or a Boolean type is as described above and will not be described here.

 Optionally, as another embodiment, the capability of the UE may include at least one of the following: The capability of the UE includes at least one of the following: support for activating and deactivating the hybrid automatic repeat request, supporting the aligning, and supporting the ΤΉ coexistence. Specifically, the capabilities of the UE include support for coexistence and selection of 10ms TTI, or support for coexistence and selection of 2ms TTI, or support for activating and deactivating hybrid automatic repeat request and ΤΉ alignment and support for coexistence and selection of 2ms TTI.

It should be understood that the manner in which the PRACH channel is indicated in the embodiment of the present invention is not limited. That is, Which manner indicates that the PRACH channel corresponding to the first cell falls within the scope of the present invention.

 Embodiments of the present invention are described in more detail below with reference to the example of FIG.

 4 is a schematic flow chart of a process of a transmission method according to an embodiment of the present invention.

 401. The RNC sends a physical shared channel reconfiguration request message to the NodeB.

 402. The NodeB sends a physical shared channel reconfiguration response message to the RNC.

 403. The RNC sends a system message to the UE.

 For example, the RNC can send system messages (eg, system message type 5) in the form of a broadcast. The system message includes at least one first cell and at least one second cell, where the first cell carries a channel indication, the channel indication is used to indicate a PRACH channel corresponding to the first cell, and the first cell can also carry a channel Corresponding information on the list of available signatures and/or random access preamble control parameters. Different second cells carry different PRACH channel information. The following describes three first cells and three second cells as an example.

 For example, a system message (in the form of a table, where ">" and ">>" indicate a level, and a cell with a level of ">" contains a cell with a level of ">>" can be expressed as follows:

 Table 1 The first cell carries a PRACH channel indication and a list of available signatures

表 2 随机接入前导控制参数扩展表 Etable 1

Table 2 Random access preamble control parameter extension table Etable 1

 » 1 List of available signatures Bitmap

 Stable 1 001

 » 1 List of available signatures Bitmap

 Stable 2 010 Table 3 Random access preamble control parameter extension table Etable 2

 » 1 List of available signatures Bitmap

Stable 3 010 Table 4 Random access preamble control parameter extension table Etable 3

表 5 第二信元携带 PRACH信道信息

Table 5 The second cell carries the PRACH channel information.

 As can be seen from the table, the system message includes three first cells and three second cells, each of which is at the same level (indicated by ">,,).

 As shown in Table 1, the type of random access preamble control parameter corresponding to the first first cell is Tpye l , and Tpye l corresponds to the first type of UE. The type of random access preamble control parameter Tpye 1 includes the random access preamble control parameter extension table Etable 1 (indicated by """. As shown in Table 2, the random access preamble control parameter extension table Etable 1 includes two random access preamble control parameter extensions, that is, the first type UE can select one PRACH channel among the two PRACH channels, and select the PRACH channel. The process of initiating random access. The first random access preamble control parameter extension includes a PRACH channel indication as a bitmap 001 and an available signature list Sttable 1 corresponding to the first PRACH channel, and a first PRACH channel and three seconds indicated by the bitmap 001. Corresponding to the first second cell in the cell, as shown in Table 5, the first second cell carries the PRACH channel information of the first PRACH channel as the PRACH channel preamble scrambling code Sp1 and the AICH channel code Sal. The second random access preamble control parameter extension includes a PRACH channel indication as a bitmap 010 and an available signature list Stable 2 corresponding to the second PRACH channel, a second PRACH channel and three second cells indicated by the bitmap 010. Corresponding to the second second cell, as shown in Table 5, the second second cell carries the PRACH channel information of the second PRACH channel as the PRACH channel preamble scrambling code Sp2 and the AICH channel code Sa2.

Similarly, the type of the random access preamble control parameter corresponding to the second first cell is Tpye 2, Tpye 2 corresponds to the second type of UE. The type of random access preamble control parameter Tpye 2 includes a random access preamble control parameter extension table Etable 2 (indicated by """. As shown in Table 3, the random access preamble control parameter extension table Etable 2 includes one random access preamble control parameter extension. The random access preamble control parameter extension includes a PRACH channel indication as a bitmap 010 and an available signature list Sttable 3 corresponding to the second PRACH channel, and a second PRACH channel and three second cells indicated by the bitmap 010. Corresponding to the second second cell, as shown in Table 5, the second second cell carries the PRACH channel information of the second PRACH channel as the PRACH channel preamble scrambling code Sp2 and the AICH channel code Sa2.

 The type of the random access preamble control parameter corresponding to the third first cell is Tpye 3 , and Tpye 3 corresponds to the third type of UE. The type of random access preamble control parameter Tpye 3 includes the random access preamble control parameter extension table Etable 3 (indicated by """. As shown in Table 4, the random access preamble control parameter extension table Etable 3 includes two random access preamble control parameter extensions. The first random access preamble control parameter extension includes a PRACH channel indication as a bitmap 100 and an available signature list Stable 4 corresponding to the third PRACH channel, and a third PRACH channel and three seconds indicated by the bitmap 100. Corresponding to the third second cell in the cell, as shown in Table 5, the third second cell carries the PRACH channel information of the third PRACH channel as the PRACH channel preamble scrambling code Sp3 and the AICH channel code Sa3. The second random access preamble control parameter extension includes a PRACH channel indication as a bitmap 010 and an available signature list Stable 5 corresponding to the second PRACH channel, a second PRACH channel and three second cells indicated by the bitmap 010. Corresponding to the second second cell, as shown in Table 5, the second second cell carries the PRACH channel information of the second PRACH channel as the PRACH channel preamble scrambling code Sp2 and the AICH channel code Sa2. It is to be understood that the invention is not intended to limit the scope of the invention. It should also be understood that the above examples are merely exemplary, such as the number of first cells, the number of second cells, the number of PRACH channels, channel information, channel indication, and the like. Rather than limiting the invention.

 The information carried in the physical shared channel reconfiguration request message sent by the RNC to the NodeB in step 401 is consistent with the information carried in the system message. The transmission format of the physical shared channel reconfiguration request message may be the same as or different from the transmission of the system message.

 404. The UE acquires channel information and selects a signature.

The UE may determine a corresponding first cell in the at least one first cell according to the capability of the UE and the correspondence between the TTI selected by the UE and the information of the random access preamble control parameter type. specifically, Tpye 1 corresponds to a UE (Type 1 UE) that supports 2 ms/10 ms TTI and selects 10 ms TTI. The UE's own capability support supports 2ms/10ms TTI coexistence and selects 10ms TTI. Therefore, the UE determines the first first cell (the first first cell corresponds to Tpye 1), and the two in the random access preamble control parameter extension table Etable 1 carried by the first first cell. Selecting one PRACH channel in the PRACH channel, if the UE selects the first random access preamble control parameter extension, the UE acquires the PRACH channel information of the first PRACH channel in the first second cell according to the bitmap (001). The PRACH channel preamble scrambling code Spl and the AICH channel code Sal. The UE selects one signature in the available signature list Stable 1 corresponding to the first PRACH channel.

 It is to be understood that the above examples are merely illustrative and are not intended to limit the scope of the invention.

 405. The UE sends a preamble sequence to the NodeB on the corresponding PRACH channel.

 For example, the UE transmits a preamble sequence to the NodeB with the signature selected in Stable 1 on the first PRACH channel according to the PRACH channel information of the first PRACH channel.

 406. The NodeB determines the capability of the UE and the selected TTI.

 For example, after receiving the preamble sequence sent by the UE on the corresponding PRACH channel, the NodeB detects the signature selected by the UE, and the information carried by the first cell and the information carried by the second cell in the physical shared channel reconfiguration request message. It can be determined that the capability of the UE and the selected ΤΉ correspond to Type 1, and it is determined that the UE selects the 10 ms TTI and supports the downlink triggered HS-DPCCH or supports the 2 ms/10 ms TTI coexistence.

 Therefore, the channel indication is used to indicate the PRACH channel corresponding to the first cell, so as to prevent the system message from repeatedly carrying the same PRACH channel information. In this way, the space of the system message is saved, the resource utilization is improved, and accordingly, the time for the UE to receive the system message is reduced, thereby reducing the delay for the UE to read the system message and the UE accessing the network.

 FIG. 5 is a structural block diagram of a user equipment according to an embodiment of the present invention. The user equipment 500 includes a receiving unit 501, a determining unit 502, and an obtaining unit 503.

 The receiving unit 501 is configured to receive a system message sent by the RNC, where the system message includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and the PRACH channel indication is used to indicate that the first cell corresponds to The PRACH channel, different second cells carry different PRACH channel information.

 The determining unit 502 is configured to determine, according to the capability of the UE, a corresponding first cell of the at least one first cell received by the receiving unit 501.

The obtaining unit 503 is configured to carry according to the corresponding first cell determined by the determining unit 502 The PRACH channel indicates that the corresponding second cell in the at least one second cell acquires PRACH channel information.

 Based on the foregoing technical solution, the system message received by the UE from the RNC according to the foregoing technical solution includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and different second cells carry different PRACH channel information. The UE may determine, according to the capability of the UE, the corresponding first cell of the at least one first cell; and according to the PRACH channel indication carried by the corresponding first cell, obtain the first corresponding cell in the at least one second cell. The PRACH channel information corresponding to the cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving system message space, improving resource utilization, and reducing the delay of the UE reading system messages.

 The user equipment 500 can implement various steps involved in the user equipment in the methods of FIG. 1 to FIG. 4, and is not described in detail in order to avoid repetition.

 Optionally, as an embodiment, the first cell may further carry a list of available signatures corresponding to the PRACH channel, and the PRACH channel information may include a PRACH channel preamble scrambling code and an AICH channel code.

 Optionally, as another embodiment, the determining unit 502 is specifically configured to determine a corresponding first cell of the at least one first cell according to the capability of the UE and the length of the UE selected by the UE.

 Optionally, as another embodiment, the first cell corresponds to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes a random access preamble control parameter extension table, and the random access preamble control parameter is expanded. The table includes at least one random access preamble control parameter extension, and each random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating one PRACH channel. The different first cells correspond to different types of random access preamble control parameters.

 Optionally, as another embodiment, the PRACH channel indication may be a Boolean type. Alternatively, the PRACH channel indication can be a bitmap. It should be noted that the PRACH channel indication in a first cell may indicate PRACH channel information of one second cell, and may also indicate PRACH channel information of multiple second cells, that is, the UE may be in multiple One PRACH channel is selected among the strip PRACH channels.

Optionally, as another embodiment, the capability of the UE may include at least one of the following: support for activating and deactivating a hybrid automatic repeat request, supporting ΤΉ alignment or supporting 2ms/10ms TTI coexistence, and the like. Specifically, the capabilities of the UE include support for coexistence and selection of 10ms, or support The TTI coexists and selects a 2ms TTI, or supports activation and deactivation of hybrid automatic repeat requests and ΤΉ alignment and supports TTI coexistence and selects 2ms ΤΉ.

 Optionally, as another embodiment, the user equipment 500 further includes a selecting unit 504, configured to select one of the available signature lists corresponding to the PRACH channel. The user equipment 500 further includes a transmitting unit 505 for transmitting a preamble sequence to the base station on the corresponding PRACH channel based on the PRACH channel information and the selected signature.

 In the above solution, the channel indication occupying space is smaller than the occupied space of the channel information, and the channel indication is used to indicate the PRACH channel corresponding to the first cell, so as to prevent the system message from repeatedly carrying the same PRACH channel information. In this way, the space of the system message is saved, the resource utilization rate is improved, and accordingly, the time for the UE to receive the system message is reduced, thereby reducing the delay for the UE to read the system message and the UE access network.

 6 is a structural block diagram of a radio resource controller according to an embodiment of the present invention. The radio resource controller 600 includes a generating unit 601 and a transmitting unit 602.

 The generating unit 601 is configured to generate a system message, where the system message includes at least one first cell and at least one second cell, where the first cell carries a physical random access channel PRACH channel indication, and the PRACH channel indication is used to indicate the first message The PRACH channel corresponding to the element, the different second cells carry different PRACH channel information.

 The sending unit 602 is configured to send, to the UE, the system message generated by the generating unit 601, so that the UE determines, according to the capability of the UE, the corresponding first cell in the at least one first cell, and is carried according to the corresponding first cell determined by the UE. The PRACH channel indicates that the corresponding second cell in the at least one second cell acquires PRACH channel information.

 Based on the foregoing technical solution, the system message received by the UE from the RNC according to the foregoing technical solution includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and different second cells carry different PRACH channel information. The UE may determine, according to the capability of the UE, the corresponding first cell of the at least one first cell; and according to the PRACH channel indication carried by the corresponding first cell, obtain the first corresponding cell in the at least one second cell. The PRACH channel information corresponding to the cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving system message space, improving resource utilization, and reducing the delay of the UE reading system messages.

The radio resource controller 600 can implement various steps involved in the method of the radio resource controller in the methods of FIG. 1 to FIG. 4, and is not described in detail to avoid repetition. Optionally, as an embodiment, the first cell may further carry an available signature list corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and a captured indicator channel AICH channel code, so that the UE corresponds to the PRACH channel. A signature is selected from the list of available signatures, and the preamble sequence is transmitted to the base station on the corresponding PRACH channel according to the PRACH channel information and the selected signature.

 Optionally, as another embodiment, the capability of the UE may include at least one of the following: support for activating and deactivating a hybrid automatic repeat request, supporting ΤΉ alignment or supporting 2ms/10ms TTI coexistence, and the like. Specifically, the capabilities of the UE include support for coexistence and selection of 10ms, or support for coexistence and selection of 2ms TTI, or support for activating and deactivating hybrid automatic repeat request and TTI alignment and supporting TTI coexistence and selecting 2ms TTI.

 Optionally, as another embodiment, the first cell may correspond to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes a random access preamble control parameter extension table, and the random access preamble control parameter The extension table includes at least one random access preamble control parameter extension, and each random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating one PRACH channel. The different first cells correspond to different types of random access preamble control parameters. The implementation of the first cell corresponding to the random access preamble control parameter extension table is as described above, and details are not described herein again.

 Optionally, as another embodiment, the PRACH channel indication may be a bitmap or a Boolean type. The implementation of the channel indication as a bitmap or a Boolean type is as described above and will not be described here.

 Optionally, as another embodiment, the generating unit 601 is further configured to generate a physical shared channel reconfiguration request message, where the physical shared channel reconfiguration request message includes at least one first cell and at least one second cell. The sending unit 602 is further configured to send a physical shared channel reconfiguration request message to the base station, so that the base station determines, according to the information carried by the at least one first cell and the information carried by the at least one second cell, that the preamble sequence is sent on the corresponding PRACH channel. The capabilities of the UE and/or the TTI length selected by the UE.

 Of course, the format of the physical shared channel reconfiguration request message can also adopt the prior art. At this time, the manner in which the base station determines the capability of the UE and/or the length of the UI selected by the UE may refer to the prior art. It should be understood that the format of the physical shared channel reconfiguration request message is not limited in the embodiment of the present invention.

In the embodiment of the present invention, the channel indication occupied space is smaller than the occupied space of the channel information, and the channel indication is used to indicate the PRACH channel corresponding to the first cell, so as to prevent the system message from repeatedly carrying the same PRACH channel information. In this way, space for system messages is saved, resource utilization is improved, and accordingly, The time for the UE to receive the system message is reduced, thereby reducing the delay for the UE to read the system message and the UE accessing the network.

 It should be understood that the manner in which the PRACH channel is indicated in the embodiment of the present invention is not limited. That is, regardless of the manner in which the PRACH channel corresponding to the first cell is indicated, it falls within the scope of the present invention.

 FIG. 7 is a structural block diagram of a base station according to an embodiment of the present invention. The base station 700 includes a receiving unit 701 and a determining unit 702.

 The receiving unit 701 is configured to receive a physical shared channel reconfiguration request message sent by the RNC, where the physical shared channel reconfiguration request message includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, PRACH The channel indication is used to indicate a PRACH channel corresponding to the first cell, and the different second cells carry different PRACH channel information.

 The determining unit 702 is configured to acquire PRACH channel information in the corresponding second cell according to the channel indication carried by the first cell received by the receiving unit 701.

 Based on the foregoing technical solution, the physical shared channel reconfiguration request message received by the base station from the RNC includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication and the second is different. The cell carries different PRACH channel information. The base station acquires, according to the PRACH channel carried by the first cell, the corresponding second cell in the at least one second cell to obtain the PRACH channel information corresponding to the first cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving space for physical shared channel reconfiguration request messages and improving resource utilization.

 The base station 700 can implement the steps involved in the base station in the methods of FIG. 1 to FIG. 4, and is not described in detail to avoid repetition.

Optionally, as an embodiment, the first cell may further carry a list of available signatures corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and a captured indicator channel AICH channel code. The receiving unit 701 is further configured to receive, on the corresponding PRACH channel, a preamble sequence that is sent by the user equipment UE by using the signature selected by the UE. The determining unit 702 is further configured to determine the capability of the UE and/or the TTI length selected by the UE according to the PRACH channel information and the signature in the available signature list, and the signature selected by the UE. Example. FIG. 8 illustrates an embodiment of a device in which device 800 includes a processor 801, a memory 802, a transmitter 803, and a receiver 804. The processor 801 controls the operation of the device 800, and the processor 801 may also be referred to as a CPU (Central Processing Unit). Yuan). Memory 802 can include read only memory and random access memory and provides instructions and data to processor 801. A portion of memory 802 may also include non-volatile line random access memory (NVRAM). The processor 801, the memory 802, the transmitter 803 and the receiver 804 are coupled together by a bus system 88, wherein the bus system 810 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 810 in the figure.

 The above-described device 800 can be applied to the method disclosed in the above embodiments of the present invention. The processor 801 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 801 or an instruction in the form of software.

 FIG. 9 is a structural block diagram of a user equipment according to an embodiment of the present invention. User equipment 900 includes a receiver 901 and a processor 902.

 The receiver 901 is configured to receive a system message sent by the RNC, where the system message includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and the PRACH channel indication is used to indicate that the first cell corresponds to The PRACH channel, different second cells carry different PRACH channel information.

 The processor 902 is configured to determine, according to the capability of the UE, a corresponding first cell of the at least one first cell received by the receiver 901.

 The processor 902 is further configured to acquire PRACH channel information in the corresponding second cell in the at least one second cell according to the determined PRACH channel indication carried by the corresponding first cell.

 Based on the foregoing technical solution, the system message received by the UE from the RNC according to the foregoing technical solution includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and different second cells carry different PRACH channel information. The UE may determine, according to the capability of the UE, the corresponding first cell of the at least one first cell; and according to the PRACH channel indication carried by the corresponding first cell, obtain the first corresponding cell in the at least one second cell. The PRACH channel information corresponding to the cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving system message space, improving resource utilization, and reducing the delay of the UE reading system messages.

 The user equipment 900 can implement various steps involved in the user equipment in the methods of FIG. 1 to FIG. 4, and is not described in detail in order to avoid repetition.

Optionally, as an embodiment, the first cell may further carry a corresponding to the PRACH channel. The available signature list, the PRACH channel information may include a PRACH channel preamble scrambling code and an AICH channel code.

 Optionally, as another embodiment, the processor 902 is specifically configured to determine a corresponding first cell in the at least one first cell according to the capability of the UE and the length of the UE selected by the UE.

 Optionally, as another embodiment, the first cell corresponds to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes a random access preamble control parameter extension table, and the random access preamble control parameter is expanded. The table includes at least one random access preamble control parameter extension, and each random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating one PRACH channel. The different first cells correspond to different types of random access preamble control parameters.

 Optionally, as another embodiment, the PRACH channel indication may be a Boolean type. Alternatively, the PRACH channel indication can be a bitmap. It should be noted that the PRACH channel indication in a first cell may indicate PRACH channel information of one second cell, and may also indicate PRACH channel information of multiple second cells, that is, the UE may be in multiple One PRACH channel is selected among the strip PRACH channels.

 Optionally, as another embodiment, the capability of the UE may include at least one of the following: support for activating and deactivating a hybrid automatic repeat request, supporting ΤΉ alignment or supporting 2ms/10ms TTI coexistence, and the like. Specifically, the capabilities of the UE include support for coexistence and selection of 10ms ΤΉ, or support for coexistence and selection of 2ms TTI, or support for activating and deactivating hybrid automatic repeat request and ΤΉ alignment and supporting ΤΉ coexistence and selecting 2ms TTI.

 Optionally, as another embodiment, the processor 902 is further configured to select a signature in a list of available signatures corresponding to the PRACH channel. User equipment 900 also includes a transmitter 903 for transmitting a preamble sequence to the base station on the corresponding PRACH channel based on the PRACH channel information and the selected signature.

 In the above solution, the channel indication occupying space is smaller than the occupied space of the channel information, and the channel indication is used to indicate the PRACH channel corresponding to the first cell, so as to prevent the system message from repeatedly carrying the same PRACH channel information. In this way, the space of the system message is saved, the resource utilization rate is improved, and accordingly, the time for the UE to receive the system message is reduced, thereby reducing the delay for the UE to read the system message and the UE access network.

FIG. 10 is a structural block diagram of a radio resource controller according to an embodiment of the present invention. The radio resource controller 1000 includes a processor 1001 and a transmitter 1002. The processor 1001 is configured to generate a system message, where the system message includes at least one first cell and at least one second cell, where the first cell carries a physical random access channel PRACH channel indication, and the PRACH channel indication is used to indicate the first message. The PRACH channel corresponding to the element, the different second cells carry different PRACH channel information.

 The transmitter 1002 is configured to send, to the UE, a system message generated by the processor 1001, so that the UE determines, according to the capability of the UE, a corresponding first cell in the at least one first cell, and is carried according to the corresponding first cell determined by the UE. The PRACH channel indicates that the corresponding second cell in the at least one second cell acquires PRACH channel information.

 Based on the foregoing technical solution, the system message received by the UE from the RNC according to the foregoing technical solution includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, and different second cells carry different PRACH channel information. The UE may determine, according to the capability of the UE, the corresponding first cell of the at least one first cell; and according to the PRACH channel indication carried by the corresponding first cell, obtain the first corresponding cell in the at least one second cell. The PRACH channel information corresponding to the cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving system message space, improving resource utilization, and reducing the delay of the UE reading system messages.

 The radio resource controller 1000 can implement various steps involved in the method of the radio resource controller in the methods of FIG. 1 to FIG. 4, and is not described in detail to avoid repetition.

 Optionally, as an embodiment, the first cell may further carry an available signature list corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and a captured indicator channel AICH channel code, so that the UE corresponds to the PRACH channel. A signature is selected from the list of available signatures, and the preamble sequence is transmitted to the base station on the corresponding PRACH channel according to the PRACH channel information and the selected signature.

 Optionally, as another embodiment, the capability of the UE may include at least one of the following: support for activating and deactivating a hybrid automatic repeat request, supporting ΤΉ alignment or supporting 2ms/10ms ΤΉ coexistence, and the like. Specifically, the capabilities of the UE include support for coexistence and selection of 10ms ΤΉ, or support for coexistence and selection of 2ms TTI, or support for activating and deactivating hybrid automatic repeat request and ΤΉ alignment and supporting TTI coexistence and selecting 2ms ΤΉ.

Optionally, as another embodiment, the first cell may correspond to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes a random access preamble control parameter extension table, and the random access preamble control parameter The extension table includes at least one random access preamble control parameter extension, Each random access preamble control parameter extension includes a list of available signatures corresponding to one PRACH channel and a PRACH channel indication indicating one PRACH channel. The different first cells correspond to different types of random access preamble control parameters. The implementation of the first cell corresponding to the random access preamble control parameter extension table is as described above, and details are not described herein again.

 Optionally, as another embodiment, the PRACH channel indication may be a bitmap or a Boolean type. The implementation of the channel indication as a bitmap or a Boolean type is as described above and will not be described here.

 Optionally, as another embodiment, the processor 1001 is further configured to generate a physical shared channel reconfiguration request message, where the physical shared channel reconfiguration request message includes at least one first cell and at least one second cell. The transmitter 1002 is further configured to send a physical shared channel reconfiguration request message to the base station, so that the base station determines, according to the information carried by the at least one first cell and the information carried by the at least one second cell, that the preamble sequence is sent on the corresponding PRACH channel. The capabilities of the UE and/or the TTI length selected by the UE.

 Of course, the format of the physical shared channel reconfiguration request message can also adopt the prior art. At this time, the manner in which the base station determines the capability of the UE and/or the length of the UI selected by the UE may refer to the prior art. It should be understood that the format of the physical shared channel reconfiguration request message is not limited in the embodiment of the present invention.

 In the embodiment of the present invention, the channel indication occupied space is smaller than the occupied space of the channel information, and the channel indication is used to indicate the PRACH channel corresponding to the first cell, so as to prevent the system message from repeatedly carrying the same PRACH channel information. In this way, the space of the system message is saved, the resource utilization is improved, and accordingly, the time for the UE to receive the system message is reduced, thereby reducing the delay for the UE to read the system message and the UE accessing the network.

 It should be understood that the manner in which the PRACH channel is indicated in the embodiment of the present invention is not limited. That is, regardless of the manner in which the PRACH channel corresponding to the first cell is indicated, it falls within the scope of the present invention.

 Figure 11 is a block diagram showing the structure of a base station according to an embodiment of the present invention. The base station 1100 includes a receiver 1101 and a processor 1102.

 The receiver 1101 is configured to receive a physical shared channel reconfiguration request message sent by the RNC, where the physical shared channel reconfiguration request message includes at least one first cell and at least one second cell, where the first cell carries a PRACH channel indication, PRACH The channel indication is used to indicate a PRACH channel corresponding to the first cell, and the different second cells carry different PRACH channel information.

 The processor 1102 is configured to acquire PRACH channel information in the corresponding second cell according to the channel indication carried by the first cell received by the receiver 1101.

Based on the foregoing technical solution, the physical shared channel received by the base station from the RNC is heavy according to the embodiment of the present invention. The allocation request message includes at least one first cell and at least one second cell, the first cell carrying

The PRACH channel indicates, and the different second cells carry different PRACH channel information. The base station acquires, according to the PRACH channel carried by the first cell, the corresponding second cell in the at least one second cell to obtain the PRACH channel information corresponding to the first cell. In this way, the same PRACH channel information is not repeatedly carried in different cells, thereby saving space for physical shared channel reconfiguration request messages and improving resource utilization.

 The base station 1100 can implement the steps involved in the base station in the methods of FIGS. 1 to 4, and will not be described in detail in order to avoid redundancy.

 Optionally, as an embodiment, the first cell may further carry a list of available signatures corresponding to the PRACH channel, where the PRACH channel information includes a PRACH channel preamble scrambling code and a captured indication channel AICH channel code. The receiver 1101 is further configured to receive, on the corresponding PRACH channel, a preamble sequence sent by the user equipment UE by using the signature selected by the UE. The processor 1102 is further configured to determine a capability of the UE and/or a TTI length selected by the UE according to the PRACH channel information and the signature in the available signature list, and the signature selected by the UE.

 Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

 A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working processes of the system, the device and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

 The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request 1. A transmission method, characterized in that it includes: Receive a system message sent by the radio network controller RNC, the system message includes at least one first information element and at least one second information element, the first information element carries a physical random access channel PRACH channel indication, the PRACH channel The indication is used to indicate the PRACH channel corresponding to the first cell, and different second cells carry different PRACH channel information; Determine the corresponding first information element in the at least one first information element according to the capability of the user equipment UE; The PRACH channel information is obtained from the corresponding second information element in the at least one second information element according to the PRACH channel indication carried by the corresponding first information element determined by the UE. 2. The method of claim 1, wherein the first information element also carries an available signature list corresponding to the PRACH channel, and the PRACH channel information includes the PRACH channel preamble scrambling code and the acquisition indication channel AICH channel code. 3. The method of claim 1 or 2, wherein determining the corresponding first information element among the at least one first information element according to the capability of the UE includes: The corresponding first information element in the at least one first information element is determined according to the capability of the UE and the length of the transmission time interval ΤΉ selected by the UE. 4. The method according to claim 2 or 3, characterized in that, after determining the corresponding first information element in the at least one first information element according to the capability of the UE, the method further includes: Select a signature from the list of available signatures corresponding to the PRACH channel; After the PRACH channel information is obtained from the corresponding second information element in the at least one second information element according to the PRACH channel indication carried by the corresponding first information element determined by the UE, the method further: include: A preamble sequence is sent to the base station on the corresponding PRACH channel according to the PRACH channel information and the selected signature. 5. The method according to any one of claims 1 to 4, characterized in that the first cell corresponds to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes random access Preamble control parameter extension table, the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, each of the random access preamble control parameter extensions includes an available signature list and indication corresponding to a PRACH channel PRACH of a PRACH channel channel indication; Wherein, different first information elements correspond to different types of random access preamble control parameters. 6. The method according to any one of claims 1 to 5, characterized in that the PRACH channel indication is a bitmap or Boolean type. 7. The method according to any one of claims 1 to 6, characterized in that the capabilities of the UE include at least one of the following: supporting activation and deactivation of hybrid automatic repeat requests, supporting transmission time interval alignment, supporting transmission Time intervals coexist. 8. The method of claims 1-6, wherein the UE's capabilities include supporting transmission time interval TΉ coexistence and selecting a 10ms TTI, or supporting TΉ coexistence and selecting a 2ms TTI, or supporting activation and deactivation. Hybrid automatic repeat request and TTI alignment are activated and TTI coexistence is supported and 2ms ΤΉ is selected. 9. A transmission method, characterized in that it includes: Generate a system message. The system message includes at least one first information element and at least one second information element. The first information element carries a physical random access channel PRACH channel indication. The PRACH channel indication is used to indicate the first information element. The PRACH channel corresponding to the second information element, and different second information elements carry different PRACH channel information; Send the system message to the UE, so that the UE determines the corresponding first information element among the at least one first information element according to the capability of the UE, and the corresponding first information element determined by the UE carries The PRACH channel indicates that the corresponding second information element in the at least one second information element obtains the PRACH channel information. 10. The method of claim 9, wherein the first information element also carries an available signature list corresponding to the PRACH channel, and the PRACH channel information includes the PRACH channel preamble scrambling code and the acquisition indication channel AICH channel code, so that the UE selects a signature from the available signature list corresponding to the PRACH channel, and sends a preamble sequence to the base station on the corresponding PRACH channel according to the PRACH channel information and the selected signature. 11. The method of claim 10, wherein the method further comprises: generating a physical shared channel reconfiguration request message, the physical shared channel reconfiguration request message including the at least one first information element and the at least one second information element; Send the physical shared channel reconfiguration request message to the base station, so that the base station determines to send the preamble on the corresponding PRACH channel based on the information carried by the at least one first cell and the information carried by the at least one second cell. Sequence capabilities of the UE and/or the UE selected when transmitting interval length. 12. The method according to any one of claims 9-11, characterized in that the first cell corresponds to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes random access Preamble control parameter extension table, the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, each of the random access preamble control parameter extensions includes an available signature list and indication corresponding to a PRACH channel PRACH channel indication of a PRACH channel; Wherein, different first information elements correspond to different types of random access preamble control parameters. 13. The method according to any one of claims 9-12, characterized in that the PRACH channel indication is a bitmap or Boolean type. 14. The method according to any one of claims 9-13, wherein the capabilities of the UE include at least one of the following: supporting activation and deactivation of hybrid automatic repeat requests, supporting ΤΉ alignment, and supporting ΤΉ coexistence. 15. A transmission method, characterized in that it includes: Receive a physical shared channel reconfiguration request message sent by the radio network controller RNC. The physical shared channel reconfiguration request message includes at least one first information element and at least one second information element. The first information element carries a physical random access channel. PRACH channel indication, the PRACH channel indication is used to indicate the PRACH channel corresponding to the first cell, and different second cells carry different PRACH channel information; Obtain the PRACH channel information in the corresponding second cell according to the channel indication carried in the first cell. 16. The method of claim 15, wherein the first information element also carries an available signature list corresponding to the PRACH channel, and the PRACH channel information includes the PRACH channel preamble scrambling code and the acquisition indication channel AICH channel code; the method also includes: Receive the preamble sequence sent by the user equipment UE on the corresponding PRACH channel using the signature selected by the UE; The capability of the UE and/or the length of the transmission time interval selected by the UE is determined according to the PRACH channel information, the signatures in the available signature list, and the signature selected by the UE. 17. The method of claim 15 or 16, wherein the first cell corresponds to a type of random access preamble control parameter, and the type of random access preamble control parameter includes a random access preamble control parameter. extension table, the random access preamble control parameter extension table includes at least one Random access preamble control parameter extension, each of the random access preamble control parameter extension includes an available signature list corresponding to a PRACH channel and a PRACH channel indication indicating a PRACH channel; Wherein, different first information elements correspond to different types of random access preamble control parameters. 18. The method according to any one of claims 15 to 17, characterized in that the PRACH channel indication is a bitmap or Boolean type. 19. The method according to any one of claims 15 to 18, wherein the capabilities of the UE include at least one of the following: supporting activation and deactivation of hybrid automatic repeat requests, supporting ΤΉ alignment, and supporting ΤΉ coexistence. 20. A user equipment, characterized by: including: A receiving unit configured to receive a system message sent by the radio network controller RNC. The system message includes at least one first information element and at least one second information element. The first information element carries a physical random access channel PRACH channel indication. , the PRACH channel indication is used to indicate the PRACH channel corresponding to the first information element, and the different second information elements carry different PRACH channel information; the determination unit is used to determine all the PRACH channels received by the receiving unit according to the capabilities of the UE. The corresponding first cell among the at least one first cell; An obtaining unit, configured to obtain the PRACH channel information from the corresponding second cell in the at least one second cell according to the PRACH channel indication carried by the corresponding first cell determined by the determining unit. 21. The user equipment according to claim 20, wherein the first information element also carries an available signature list corresponding to the PRACH channel, and the PRACH channel information includes a PRACH channel preamble scrambling code and an acquisition indication channel AICH channel code. 22. The user equipment according to claim 20 or 21, characterized in that the determining unit is specifically configured to: determine the at least one first time interval T according to the capability of the user equipment UE and the length of the transmission time interval selected by the UE. The corresponding first cell in the cell. 23. The user equipment according to claim 21 or 22, characterized in that, the user equipment further includes a selection unit, The selection unit is used to select a signature from the available signature list corresponding to the PRACH channel; The user equipment further includes a sending unit, The sending unit is configured to send a message to the corresponding user according to the PRACH channel information and the selected signature. Send the preamble sequence to the base station on the PRACH channel. 24. The user equipment according to any one of claims 20 to 23, wherein the first information element corresponds to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes random access preamble control parameter. Enter the preamble control parameter extension table. The random access preamble control parameter extension table includes at least one random access preamble control parameter extension. Each of the random access preamble control parameter extensions includes an available signature list corresponding to a PRACH channel and PRACH channel indication indicating a PRACH channel; Wherein, different first information elements correspond to different types of random access preamble control parameters. 25. The user equipment according to any one of claims 20 to 24, characterized in that the PRACH channel indication is a bitmap or a Boolean type. 26. The user equipment according to any one of claims 20 to 25, characterized in that the capabilities of the UE include at least one of the following: supporting activation and deactivation of hybrid automatic repeat requests, supporting TTI alignment, and supporting ΤΉ coexistence. . 27. The user equipment of claim 26, wherein the UE's capabilities include supporting ΤΉ coexistence and selecting 10ms TTI, or supporting ΤΉ coexistence and selecting 2ms TTI TTI, or supports activation and deactivation of hybrid automatic repeat request and ΤΉ alignment and supports ΤΉ coexistence and 2ms TTL selected 28. A radio resource controller, characterized in that it includes: Generating unit, configured to generate a system message. The system message includes at least one first information element and at least one second information element. The first information element carries a physical random access channel PRACH channel indication. The PRACH channel indication is In order to indicate the PRACH channel corresponding to the first cell, different second cells carry different PRACH channel information; A sending unit, configured to send the system message generated by the generating unit to the UE, so that the UE determines the corresponding first information element among the at least one first information element according to the UE's capability, according to the UE The determined PRACH channel carried by the corresponding first information element indicates that the corresponding second information element in the at least one second information element obtains the PRACH channel information. 29. The radio resource controller of claim 28, wherein the first information element also carries an available signature list corresponding to the PRACH channel, and the PRACH channel information includes a PRACH channel preamble scrambling code and an acquisition indication. Channel AICH channel code, so that the UE selects a signature from the available signature list corresponding to the PRACH channel, and sends a preamble sequence to the base station on the corresponding PRACH channel according to the PRACH channel information and the selected signature. 30. The radio resource controller according to claim 29, characterized in that, the generating unit Also used for: generating a physical shared channel reconfiguration request message, where the physical shared channel reconfiguration request message includes the at least one first information element and the at least one second information element; The sending unit is also configured to: send the physical shared channel reconfiguration request message to the base station, so that the base station determines based on the information carried by the at least one first cell and the information carried by the at least one second cell. The capability of the UE to send the preamble sequence on the corresponding PRACH channel and/or the transmission time interval length selected by the UE. 31. The radio resource controller according to any one of claims 28 to 30, wherein the first information element corresponds to a type of random access preamble control parameter, and the type of the random access preamble control parameter includes A random access preamble control parameter extension table, the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, each of the random access preamble control parameter extensions includes an available signature corresponding to a PRACH channel List and indicate the PRACH channel indication of a PRACH channel; Wherein, different first information elements correspond to different types of random access preamble control parameters. 32. The radio resource controller according to any one of claims 28 to 31, characterized in that the PRACH channel indication is a bitmap or a Boolean type. 33. The radio resource controller according to any one of claims 28 to 32, wherein the capabilities of the UE include at least one of the following: supporting activation and deactivation of hybrid automatic repeat requests, supporting ΤΉ alignment and supporting ΤΉ coexist. 34. A base station, characterized by: including: A receiving unit configured to receive a physical shared channel reconfiguration request message sent by the radio network controller RNC, where the physical shared channel reconfiguration request message includes at least one first information element and at least one second information element, and the first information element The element carries a physical random access channel PRACH channel indication, and the PRACH channel indication is used to indicate the PRACH channel corresponding to the first cell, and different second cells carry different PRACH channel information; Determining unit, configured to obtain the PRACH channel information in the corresponding second cell according to the channel indication carried in the first cell. 35. The base station of claim 34, wherein the first information element also carries an available signature list corresponding to the PRACH channel, and the PRACH channel information includes the PRACH channel preamble scrambling code and the acquisition indication channel AICH channel code; The receiving unit is also configured to: receive a preamble sequence sent by the user equipment UE using the signature selected by the UE on the corresponding PRACH channel; The determining unit is further configured to: determine the capability of the UE and/or the TTI length selected by the UE according to the PRACH channel information, the signatures in the available signature list, and the signature selected by the UE. 36. The base station of claim 34 or 35, wherein the first cell corresponds to a type of random access preamble control parameter, and the type of random access preamble control parameter includes a random access preamble control parameter. Extension table, the random access preamble control parameter extension table includes at least one random access preamble control parameter extension, each of the random access preamble control parameter extensions includes an available signature list corresponding to a PRACH channel and indicates a PRACH channel PRACH channel indication; Wherein, different first information elements correspond to different types of random access preamble control parameters. 37. The base station according to any one of claims 34 to 36, characterized in that the PRACH channel indication is a bitmap or Boolean type. 38. The base station according to any one of claims 34 to 37, wherein the capabilities of the UE include at least one of the following: supporting activation and deactivation of hybrid automatic repeat requests, supporting TΉ alignment and supporting TΉ coexistence.