TW200939838A - Method and arrangement in a communication network - Google Patents

Abstract

Method and arrangement in a node in a radio access network for use in improving a success ratio for hard handover of a downlink connection to a user equipment between cells in the radio access network. The user equipment and the radio access network are capable of engaging in diversity handover for uplink communications. The method comprises the steps of transmitting to the user equipment information authorising the user equipment to take a decision on whether to initiate the downlink handover procedure, receiving from the user equipment information establishing a point in time for performing the downlink handover, initiating an activation of a source cell and a target cell in preparation for the downlink handover prior to the established point in time and performing the downlink handover in the radio access network at the established point in time. Also, a method and arrangement in a user equipment is presented.

Description

200939838 VI. INSTRUCTIONS: TECHNICAL FIELD OF THE INVENTION The subject matter disclosed is related to various embodiments of a method and configuration in a user interface device. More specifically, the present invention relates to a mechanism for implementing handover in one of the radio access networks. [Prior Art] The functionality of manipulating the user's mobility is the basic principle of the cellular network. From a service quality perspective, such functionality must ensure that each user session is moved from one unit to another during the proactive period, and each new session is established in a sufficiently good radio environment. From a spectrum efficiency perspective, such functionality should ensure that active users are always served by the most appropriate base station or base stations (which typically represent the nearest base station in wireless inductive sensing). In a handover scenario such as High Speed Downlink Packet Access (HSDPA), the Radio Network Controller (RNC) can transmit the High Speed Cell Change Command from the source cell on the HS_DSCH (downlink) channel. It must transmit the message 'while keeping the signal received by the user equipment from the source cell strong enough. The HS_DSCH downlink channel is shared between user devices that use channel dependent scheduling to take advantage of available radio conditions. The source cell is a cell in which the user equipment is temporarily parked. The target cell performs the cell to which the handover arrives when the user equipment moves to the geographic area covered by the cell. !37233.doc 200939838 A high speed cell change command that can be transmitted using, for example, the physical channel reconfiguration or radio bearer reconfiguration message means that the user equipment should start listening to the target cell instead of the source cell. Assuming that the message is properly received by the user equipment, the user equipment will comply with the command from the RNC, and usually the change from the source to the downlink high speed channel below the target cell will be performed after a certain time, which is It is defined by a parameter received in the high speed cell change command. e 偶尔 Occasionally, the user equipment is unable to receive the high speed cell change command when the command is transmitted over the air and the user equipment is located in the border area of the source cell or even outside the source cell. In such a case, the user equipment will continue to listen to the source cell instead of the target cell, and when the user equipment advances deeper to the target cell, the call system is most likely to be lost, of course, the most troublesome The user. In the case where the user equipment moves at a high speed (e.g., when a call is made from a car traveling on a free-speed highway), the discontinuity problem becomes greater. It is also expected to increase in some covered scenarios: the interruption rate' where the separation between the source cell and the target cell is distinct and well defined. This can be a roadside cell in a rural area, and uses a diagonal antenna, and where the environment provides very few multipaths, such as the radio wave that has been transmitted. For example, the root is therefore the root of the transfer method. Therefore, it is known that the handover method is not as robust as we hoped. According to the existing method, a handover interruption may occur. SUMMARY OF THE INVENTION The purpose of the present invention is to eliminate at least some of the above disadvantages. 137233.doc 200939838 An improved performance in the network. The object is achieved by a method in a node of a radio access network, which is used for improving the downlink to the user equipment in the radio access network. Hard delivery - the success rate. The user equipment and the radio access network are capable of performing uplink handover of communications, such as soft and/or soft handover. The method includes the step of transmitting a t message to the user equipment to authorize the device to enter a decision regarding whether to initiate the downlink handover procedure. The method further includes the step of receiving information from the user device, the information establishing a point in time for performing the downlink handover. Still further, the method includes the step of initiating one of the source cell and the target cell in the preparation of the downlink handover before the established time point. Additionally, the method includes the step of performing the downlink link handoff in the radio access network at the established point in time. The object is also achieved by a configuration in a node of a radio access network for improving the downlink between the cells in the radio access network to one of the user equipments. A successful ratio of hard handoffs for connections. The user equipment and the radio access network are capable of performing uplink-communication diversity handover, such as soft and/or soft handover. This configuration includes a • transmitter. The transmitter is adapted to transmit information to the user equipment for authorizing the user equipment to make a decision as to whether to initiate the downlink handover procedure. Furthermore, the configuration includes a receiver. The receiver is adapted to receive information from the user equipment, the information establishing a point in time for performing the downlink handover. At the same time, the configuration contains a 137233.doc 200939838 calculation unit. The computing unit is adapted to initiate initiation of a source cell and a target cell. The initiation is initiated in the preparation of the downlink key handover prior to the established point in time to facilitate the execution of the lower row key handover in the radio access network at the established point in time. This object is also achieved by a method in the slap of Berlburn/the user of the mountain, which is used to improve the inter-cell to the user (4) in a radio access network. - Hard handover of the downlink connection - success ratio The user equipment and the radio access network are capable of engaging in diversity communication of uplink communications, such as soft and/or soft handover. The method includes the steps of receiving information from the WTRU for authorizing the user equipment to make a decision regarding whether to initiate the downlink handover procedure. At the same time, the method includes performing a keyway handover from a source cell to a target cell according to the authorization decision. Moreover, the method includes the step of calculating a time point for performing the downlink handover. Still further, the method includes the step of initiating the downlink handover at the calculated time point. The purpose of the © is also achieved by a configuration in a user equipment, which is used to change the hard handover of the inter-cell connection of the radio access network towel to the user equipment. Success ratio. The user equipment and the radio access network are capable of engaging in the diversity of uplink communications, such as soft and/or softer handover. This configuration contains a receiver. The configuration is adapted to receive a decision from the radio access network for authorizing the device to initiate a decision of the downlink handover procedure. The configuration includes a decision unit. The decision unit is adapted to perform the link handover from the source cell to the target cell 137233.doc 200939838 according to the authorization decision. Therefore, the configuration includes a computing unit. The computing unit is adapted to calculate a point in time for performing the downlink handover and to initiate downlink handover at the calculated point in time. Through this method and configuration, a handover with reduced interrupt rate is achieved by utilizing the fact that the uplink connection in a handover scenario often outperforms the downlink connection. Use of the network - With a command to perform the handover, the user equipment initiates the handover and transmits a time value 'which contains a point in time when the handover was performed. This ® reduces the risk of loosening a connection because the user equipment does not have to wait to receive a command from the network on the downlink to perform the handover. Thus an improved performance in a radio access network is provided. [Embodiment] The subject matter disclosed is related to a method and configuration in a radio access network and a specific embodiment of a method and configuration in a user equipment, which may be in the specific embodiments described below. Carry out the work. However, the disclosed subject matter may be embodied in many different forms and should not be construed as limited to the particular embodiments described herein. Method and apparatus <category. It should be understood that the present disclosure is not intended to limit the method and configuration of the present invention in a radio access network to any particular form disclosed. Conversely, the method and configuration are intended to cover the application. All modifications and generations within the scope of the methods and configurations defined in the scope of the patent. The purpose and features of the present method and configuration will be readily understood from the following detailed description of φ, in conjunction with the drawings. However, it should be understood that the present invention is designed only for the purpose of illustration and that the drawings do not define the limitations of the invention. It should be further understood that the drawings are not to scale, and unless otherwise indicated,圏 1 is a schematic illustration of a radio access network 100. A user located in a vehicle 105 manages a user equipment 110 in the wireless communication system 100. Further, the radio access network 1 may include a first base station 12 in a source cell 121. And a second base station 130 in a target cell 132. The source cell ι 21 and the target cell 132 are separated by a cell boundary of 15 〇. Although two base stations 120, 130 are shown in FIG. 1, it is understood that another configuration of the base station transceiver can be used, for example, to define a mobile switching center and other networks of the radio access network 100. The nodes are connected. Furthermore, the base stations 120, 130 may be referred to as, for example, a remote radio unit (RRU), an access point, a Node B, an evolved Node B (eN〇de B), and/or a base transceiver. Stations, access point base stations, base station routers, etc., depending on, for example, the radio access technology and terminology used. In some embodiments, 'user equipment (UE) 110 may be a wireless communication device, a wireless communication terminal, a mobile cellular telephone, a personal communication system terminal, a PDA, a laptop , a computer or any other type of device capable of managing radio resources to indicate 137233.doc -9- 200939838 The radio access network 100 can be based, for example, on Global Mobile Telecommunications System (GSM), code division multi-directional proximity (CDMA) , Broadband Code Division Multi-Way Proximity (WCDMA), CDMA 2000, High Speed Downlink Packet Data Access (HSDPA), High Speed Uplink Packet Data Access (HsupA), High Data Rate (HDR), etc. To some non-limiting examples.

Moreover, as used herein, in the conventional sense, the radio access network 1 can refer to various radio access technologies (a wireless local area network (LAN) or a wireless personal area network) without deviating from the present The theory of invention. Such networks may include, for example, radio access technologies such as Enhanced Data Rate (EDGE) for GSM Evolution, General Packet Radio Service (GPRS), High Speed Packet Data Access (HSPA), Universal Mobile Telecommunications System (111^) 1^) and/or wireless local area network (WLAN), such as wireless fidelity (wiFi) & Worldwide Interoperability for Microwave Access (WiMAX), Bluetooth, or according to any other wireless communication technology. It should be noted, however, that the present invention is not limited in any way to be exclusively implemented in the radio access network 100, but may be implemented in a radio access network, some of which are connected wirelessly, and Some nodes have a wired connection. According to some embodiments, the radio access network 1 may further include a - control node U0. The control node 140 can be, for example, a radio network control | | (RNC) H-line grid controller 14 that is a - regulation component in the radio access network H) 0 that is responsible for connecting to the radio network The controller 14 is controlled by the base stations 12A and 13G. The radio network controller 140 can further implement, for example, radio resource management; certain mobility management functions can be coupled to the user data transmission to and from the user setting 137233.doc •10-200939838 The point. The user device 110 can communicate with any other user equipment or network node not shown in FIG. 1 via any, some or all of the base stations 120, 130 included in the radio access network. Figure 1 further illustrates the user equipment 110 that it is moved from the source cell * 121 to the target cell 132. Along the various points of the dotted line in Figure 1, this is an important point in the procedure in the mobile traffic situation. It is worth noting that the service 包含 situation includes two procedures, an active set update procedure and a high-speed cell change procedure. The active set update procedure adds cells 121, 132 to the active set' so there are at least two cells 121, 32 in the active set, which in turn means that the uplink transmission from the user equipment 110 can be The base stations 120, 130 receive them. The high speed cell change procedure changes the downlink transmission from the source cell 12 1 to the target cell 丨 3 2 . At point A in Figure 1, the downlink of the target cell 132 is detectable' and can be measured by the user equipment. 〇 At point B in Figure 1, the signal strength exceeds the target cell 132 to the threshold of the active set. The user equipment 11 can then transmit a measurement report (event la)' to the control node 14 to indicate that the target cell 132 can be added to the active set. The control node 140 can then send a valid set update message to the user equipment 11 that contains information about the target cell 132. Adding the target cell to the active set means adding an additional uplink connection. Somewhere between points B and C in Figure 1, the target cell 132 becomes the best cell. At this point in time, a handover from the source cell to the destination 137233.doc 200939838 may be determined. Such decisions must also be made between the user device 11 and the control node 140. According to some embodiments, a new management report (Event Id) can be transmitted from the user equipment 11 to the control node 140 indicating that the target cell 132 has become the new best cell. The control node 140 can then instruct the user equipment 110 to perform a high speed cell change 'whether using the physical channel reconfiguration or radio bearer reconfiguration message' means that the user equipment 11 can begin listening to the target The cell 132, rather than the source cell 121', is assumed to be transmitted to the user equipment 110 at point D. Assuming that the message is properly received by the user device 110, the user device will comply with the command from the control node 140, and typically the change from the source cell 121 to the downlink high speed channel of the target cell 132 may be a parameter. Executed after a defined time, the parameter is received in the high speed cell change command. The source cell 121 and the target cell 132 can be controlled by different control nodes 14 that can communicate with each other. 2A is a combined signaling and flow diagram depicting transmission of signals between the user equipment 110, the first base station 120, the second base station 130, and a control node 140, in accordance with certain embodiments. , the system is in the implementation of 'delivery. The user equipment 110 continuously performs measurements that may result in a Radio Resource Control Layer (RRC) measurement report at point B in Figure i (when a new potential target cell 132 exceeds the set threshold) message. 137233.doc -12- 200939838 210 The user equipment 110 transmits an RRC measurement report to the control node 140. 220. The control node 140 can set a radio link (RL) in the target cell 132 and transmit an RRC active set update to the user equipment 110 to add the target cell 132 to the active set. 230 ® can add new information to this message 'This information contains a preparation for a high-speed cell change' also known as target cell pre-configuration. This information corresponds to the one transmitted in an RRC physical channel reconfiguration or RRC radio bearer reconfiguration, and also includes a cell change trigger level criterion. For the IH network I 14 14 0, the new information element used may be optional, but for the user device 110, it is mandatory. 240 p The user equipment 110 may respond with an RRC Active Set Update Complete message. In this case, the message also tells the network that a trigger for a high speed cell change is on standby. Circular 2B is a combined signaling and flow diagram depicting the user equipment 110, the first base station 120, the second base station 130 and a control in accordance with certain embodiments. The transmission of signals between nodes 14 . 250 When fulfilling the cell change trigger level criterion, usually at 137233.doc •13·200939838 in Figure 1 between B and C, the user equipment iio will transmit a new message (here The RRC cell change indication indicates that the radio access network ι performs the high speed cell change, and the new message includes the current connection frame number (€1?1) in the user equipment 110 at the trigger time. Information. When the user equipment 110 continuously performs measurements indicating that the new cell 132 is performing the criterion as the best cell, the trigger can release the handover. In an earlier message, from the network The sum of the start time of the user equipment 丨10 and the connection frame number may be the time at which the user equipment 丨i 〇 starts listening to the (downlink) high speed channel from the new cell 132. The time is transmitted to the network. The connection frame number of the road 100 may be based on the connection time of the decision frame number 0 260 - 270 '280 > 290 in several steps 260, 270, 280, 280 'when the set start time is run, Prepare the first base station 12〇 And the second base station 130 for performing the handover. The startup time may correspond to reconfiguring the radio links and changing the media access control MAC-d flow to the target cell 132. The minimum time required 'and usually can be transmitted to the user device as part of the RRC active set update. The user device uo will use the start time to know when to start listening to the target cell 132, And the network 100 will use the connection frame number + start time as the start time of the reconfiguration of the radio links. 295 Change the MAC-d flow to the target cell 132, that is, complete the handover 137233.doc • 14·200939838. The MAC-d flow belongs to one of the MAC-d multiplexed logical channels of the MAC-d protocol data unit (PDU). The members of the active set of the user equipment 110 may have as many triggers as possible. If a new cell 121, 132 is added to the active set and the other is excluded from the active set, the trigger corresponding to the removed cell may also be removed. 闽3A Interpretation and Exemplary Implementation Example of consistent use The device device 110 can include, for example, a transceiver 3〇5, a processing unit 310, a memory 315, an input device 320, an output device 325, a bus bar 330, and a control system 335. The processor 305 can include a transceiver circuit for transmitting and/or receiving a sequence of symbols using the radio frequency signal via one or more antennas, including data buffering and device control functions, such as the processing unit 7L310 can include a central processing unit (CPU) , processor, microprocessor or processing logic that can interpret and execute instructions. Processing unit 310 can perform all data processing functions for input, output, and processing of data, packet interface control, or the like. , such as call processing control, user, semi-permanent or temporary

137233.doc Memory 3 1 5 provides permanent working storage of data and instructions for ongoing device processing functions. The memory 315 may include a ROM, a RAM, a -15. 200939838 piece 320 may include a keypad. The keypad can permit a manual user to type data into the user device 110. According to some embodiments, the input device 320 can further include a microphone. The microphone can sequentially include mechanisms for converting the audio input into an electrical signal. According to some embodiments, a touch screen functionality is included in or associated with the input device 32A. Output device 325 can include mechanisms for outputting information in audio, video, and/or hard copy formats. For example, output device 325 can include a speaker that includes a mechanism for converting an electrical number to an audio output. Output device 325 can further include a display unit that displays output data to a user. For example, the display unit can be provided for use. The user displays a graphical user interface of the output data. The bus bar 330 can interconnect various internal components of the user device 11 to permit the components to communicate with each other. The user device 110 has control to the radio network. Various procedures for the connection of the infrastructure 100. A specific embodiment of the method and configuration provides a modification to the method for high speed cell change, and for purposes of illustrating the specific embodiments, The radio connection control system 335 of the network infrastructure 100 is referred to as a radio link control system. It can be part of the overall control system 335 placed in the softbox of one of the user devices 110. The user equipment The radio link control system of 110 has a procedure that monitors the neighboring cells 'and when a neighboring cell Signal strength above a certain threshold level or when the nickname strength of a cell that is part of the active set becomes below another defined threshold, 137233.doc -16 · 200939838 is reported. The measurement report is sent to the control node 140 to enable the control node 140 to command the change of the active set. The configuration of the components of the user equipment 110 shown in FIG. 3A is for illustrative purposes only. Other configurations of fewer or a differently configured component. 3B illustrates an exemplary embodiment of user device 110, wherein user device 110 includes a cellular radiotelephone. As shown in Figure 3B, user device 11 is shown. The 〇 may include a microphone 355, such as for inputting audio information into the user device 110, for example, an input device 32A; a speaker 34, such as an output device 325 for providing an audio output from the radio telephone; A keypad 345, such as an input device 320 for manually entering data or selecting a phone function; and a display 350, such as an input device 32A or an output device 325, which can be viewed The user interface is displayed to the user and/or a user interface can be provided for the user to type in the data or select the phone function in conjunction with the keypad 345. The display unit 350 can include a screen display that provides a user interface ( For example, a user interface is used by a user to select a device function. According to some embodiments, the display unit 35 can be adapted to register a user device U. The input of one of the users. The display of the display unit 350 can include any type of visual display, such as a liquid crystal display (LCD), a plasma screen display, a light-emitting diode display, a cathode ray tube. (CRT) display, an organic light emitting diode (OLED) display, and the like. 137233.doc -17- 200939838 Circle 4 illustrates the procedure for continuous monitoring of neighboring cells. The radio link control system 335 can monitor the neighboring cells using the radio sections and the baseband processing sections as described by steps 410, 420, and 430. In a first step 410, the neighboring cells are measured. In a next step 420, a cell can be added to or removed from the active set. In step 430, a rrc measurement report message may be transmitted to indicate a change in the list of cells that may be part of the active set. The monitoring procedure described in Figure 4 can continue as long as the user device 110 is in the CELL-DC state. The radio link control system 335 can anticipate an RRC active set update message from the control node 14 which is transmitted as a result of the measurement report to describe a procedure for waiting for an RRC active set update message. According to some embodiments, it is proposed to expand the content and meaning of the RRC active set update message. In step 51 of Figure 5, the program waits for an RRC active set update message. This message may instruct the user equipment to add, remove, or replace a cell from/to the active set. In step 52, the radio links may be added and/or removed from the active set as indicated by the control node 140. In addition to adding an uplink radio link to the new cell, all necessary information for performing the high-speed cell change via the RRC active set update message from the control node is optionally presented to the user setting 137233. .doc 200939838 备11, when the new cell becomes the best cell according to the cell change trigger level criterion set by the control node 14〇. This optional new high-speed cell change behavior is referred to as a delegated cell change. A new message (referred to herein as an RRC cell change indication) may be prepared in step 570 to prepare for a change in the best cell within the active set. Not having committed the cell change content in the RRC active set update message may result in maintaining the legacy 3GPP behavior, which means that, as noted by step 560 in FIG. 5, a new best cell may be transmitted when a new best cell is discovered. Rrc measurement report. Step 540 of Figure 5 shows that when a cell is removed from the active set, the corresponding high speed cell change preparation information received at the time when the cell is added to the active set is removed. The ® 6 Series explains the procedure for monitoring an active set. This procedure can be effective as long as there are two or more cells in the active set. In step 610 of Figure 6, the signal strengths of the cells 121, 132 in the active set are measured and monitored. If a cell ι2ΐ, 132 (which is not the high-speed serving cell) in the active set is the best cell by performing the criterion, then in step 630, the program checks the cell 121, 132 has been delegated cell change status. . If the cell 121, 132 is marked "allocated cell change", then in step 650, the connection frame number (CFN) is set in the prepared RRC cell change indication, and the message is transmitted to the The control node 140' is configured to instruct the user equipment n to perform a speedy cell change at a given time: the connection frame number plus the start timer, which is typically available at the rrC active set from the control node 14 Received in the update message. 137233.doc -19- 200939838 Instructs the user equipment 110 to transmit the message to perform the high speed cell change to the control node 140 for uplink. Since the uplink uses multiple radio links, it can be referred to as macro diversity, where one of the keys is the new high-speed servo cell, and the probability of successfully completing the high-speed cell change is higher than the old one. The probability in the 3GPP solution. In step 670 of Figure 6, the program begins a start timer for the cell change, and the corresponding program. Figure 7 below shows the startup procedure in the downlink to wait for the correct instant to change to the target cell 132. Due to the sent connection frame number, the downlink transmission on the high speed channel will change from the source cell 121 to the target cell 132 at the same time in the control node 14A. The control node 140 will be combined. 8 and explain in more detail. When the start timer expires in step 701 of Figure 7, the program reconfigures the baseband portions to receive downlink information from the target cell 132. The program is then stopped and the high speed cell change procedure has been completed. The control node 140 has various programs for controlling the connection to all user devices. Here, for purposes of illustration, the control node 14 is shown as an entity separate from the base stations 120, 130. However, these 3Gpp standards allow implementations that combine the functionality of the control node 140 with the base stations 12, 〇, 。. The invention is independent of whether the network nodes 12, 13, or 14 are co-located. This particular embodiment proposes a modification of the method for high speed cell change. In this embodiment, by way of example, the control system that maintains the radio connection between the user equipment 137233.doc •20·200939838 110 and the network infrastructure is referred to as the control node mobility/delivery control. . It is part of the overall control system placed in the software of a processor of the control node 140. Figure 8 shows the location of a control node 14 in a control node 14 示意 the action/delivery control. The mobility/delivery control unit has a program for receiving measurement event messages from the user equipment 1 1 that it controls. This procedure expects an RRC measurement report message from any of the user equipments 110 in the Φ connection mode. The information of interest in this particular embodiment is related to the notification of whether a cell from the active set is added or removed, or when a cell 121, 132 has become the best cell in the active set, for which the downlink is The HSDPA connection is used in the road. The procedure described below in Figure 9 is part of the RNC mobility/delivery control. In step 910 of circle 9, the program awaits receipt of an RRC Measurement Report message from the user equipment 110. After the event identification in step 920, an event 1& occurrence proceeds to step 930 where the program can check a system parameter or evaluation procedure: whether the reported cell should use the old high speed cell change method or the new delegated Cell change method. It should be noted that the principles of the measurement reports described in these 3Gpp standards allow for the use of other events, and may be augmented by new events to accomplish the same results as described in this particular embodiment. This description refers to event 1 a as an example of a useful implementation. In steps 940 and 950, respectively, an RRC active set update message is prepared for 137233.doc -21 - 200939838 for the two methods. The delegated cell change method requires additional parameters in the RRC active set update message. The additional parameters convey the information needed for the high speed cell change procedure in which the information is transmitted using an RRC radio bearer reconfiguration or an RRC physical channel reconfiguration. In step 96 of Figure 9, the RRC active set update is transmitted to the user device 110. The delegated cell change alternative introduced in this embodiment will require the user equipment 11 to self-prepare and make a committed cell change decision based on the information in this message. The mobility/delivery control in the control node 140 may also use a procedure that waits for an RRC active set update complete message from the user equipment 110. This program in the control node 140 is similar to the old behavior and is therefore not shown here. Figure 10 shows the delegated cell change procedure for mobility/delivery control in the control node 140. In step 1〇, the program waits for an RRC cell change to indicate that a committed cell change has begun. This message contains information about the CFN, which reveals when the user equipment 11 triggers the delegated cell change. This is used as a time reference to complete a synchronized-high speed cell change. An NBAP radio link reconfiguration preparation is transmitted to the base station 120 of the source cell m and the base station 13 of the target cell 132. This is shown in step 1020. This is similar to an old high-speed cell change procedure. In step 1030, a CFN received from the user equipment 11 and added to the start time is used (which is defined by the control node 14 as the base 137233.doc -22-200939838 three:::=== Then, in the step purchase, the control node 14 will wait for the startup time and delete the user plane connection to the target cell 13 2 .

The non-standard embodiment is based on the principle that the processing delay in the handover decision can be minimized and that the uplink is in a soft/softer handover state and is provided below the cell boundary 150. A more reliable link. When mapping the signaling radio bearer to an hs dsch transport lane, there may be a risk that the high speed cell changes lose the connection. Thus, embodiments of the present invention reduce this risk by signaling the cell change decision using the uplink. Since the uplink supports soft handover, multiple radio links are used, including a link through the new best cell. This will result in a significantly higher chance of successful cell change than one of the old episodes. In an exemplary embodiment, the network may prepare the user device 110 to make a high speed cell change to the user device 11 but may allow the final decision to execute the command. Thus, an exemplary embodiment may minimize the processing delay between measurement and execution of the face-speed cell change, and use the uplink to inform the network of the intent to switch to the target cell 132 belonging to the active set. 11 is a flow chart illustrating a method in a node 12, 130, 140 of a radio access network 100 for improving the use of cells 121, 132 to one of the radio access network 100. One of the devices 11〇 downlink 137233.doc •23- 200939838 A successful ratio of hard handover of the road connection. The user equipment 11 and the radio access network 100 are capable of performing diversity handover of uplink communications, such as soft and/or soft handover. The nodes 120, 130, 140 within the radio access network 1 can be, for example, a control node 14, such as an RNC. According to some embodiments, the nodes 132〇, 130, 140 may be a base station 120, 130. According to still further optional embodiments, the method may be partially implemented in the base station 120, 130 and partially in the control node 14A. In order to properly improve the success rate of hard handover, the method may comprise several steps Π01 to 1105»however, please note that the method steps 11〇1 to 11〇5 may be performed in another timing order other than the enumeration indications, Moreover, some of the steps (e.g., step 1103 and step 1104) or even all of the steps may be performed simultaneously or in a sequential, arbitrarily reconfigured, decomposed, or even reversed sequence. It is further noted that some of the presented method steps (e.g., step 1102) are optional and can only be implemented in certain embodiments. The method can include the following steps: Step 1101 The user equipment 110 sends information to authorize the user equipment 110 to make a decision as to whether to initiate the downlink handover procedure. According to some embodiments, the authorization of the user equipment 110 may select cells 121, 132 with respect to one or more. However, according to some embodiments, the authorization may be related to at least one of the cells 121, 132 in one of the user equipments Π0. The information sent to the user equipment 110 may include, for example, a handover trigger 137233.doc • 24_ 200939838 quasi m, such as a target cell pre (4), which is determined by a decision as to whether to initiate the downlink handover procedure. The user device ιι〇 uses 0 step 1102. The method steps are optional, and only 0 may be implemented in some embodiments to send a start time value to the user device 11 . The start time value establishes a time interval which may be sufficient for a start of a source cell 121 and a target cell i 3 2 in the preparation of the downlink handoff. The start time value indicates when the handover is performed, which is counted from a certain starting point. Thus, the transmitted start time value can be used, for example, as a start value in a countdown timer that can be run simultaneously at the user device 110 and the control node 140. Step 1103 receives information from the user equipment 110 for establishing a point in time at which the downlink handover is performed. According to some embodiments, the information received from the user device 10 may include information indicating that the user device 110 has made a decision regarding initiating the downlink handover procedure, and identifying The downlink is handed over to the target cell 132. Step 1104: Before the established time point, initiate a start of a source cell 121 and a target cell 132 in the preparation of the downlink key handover. Step 1105 137233.doc -25· 200939838 at the established time point The downlink handover in the radio access network is implemented. When the established time point is reached, the handover from the source cell 121 to the target cell 132 is performed. According to some embodiments, a signal for confirming the performance of the handover at the established point in time can be transmitted to the user equipment 11 as needed. Figure 12 schematically depicts a specific embodiment of a configuration 1200 of one of the nodes 12 〇, 13 〇, 140 of a radio access network 1 调 adapted to perform at least some of the above method steps 1101 to 1105 . The configuration 1200 in the user equipment 110 is adapted to improve a success rate of hard handover of one of the cells 121, 132 to a user equipment ι10 in the radio access network 下行. The user equipment and the radio access network 100 are capable of performing diversity handover of uplink communications, such as soft and/or soft handover, for the sake of clarity 'and in order not to express the knowledge of the node. The non-essential complexity of the present method and configuration 1200 in 120, 130, 140 and the functionality and advantages of the configuration 1200 has been used to implement nodes 120, 130, 14 that are not absolutely necessary according to the method of steps n〇1i11〇5〇 Any internal electronic device placement is omitted from Figure 12. The configuration 1200 includes a transmitter 1210. The transmitter 121 is adapted to send information authorizing the user equipment 110 to a decision as to whether to initiate a decision of the downlink handover procedure to the user equipment 11 . The configuration 1200 also includes a receiver 1230. The receiver 1230 is adapted to receive information from the user device 110 that establishes a point in time for performing the downlink 137233.doc -26·200939838 link handover. Again, the configuration 1200 includes a computing unit 1240. The computing unit 124 is adapted to initiate initiation of a source cell 121 and a target cell 132 in the preparation of the downlink handover before the established time point, and the radio is implemented at the established time point. The downlink is handed over in the access network 100. Optionally, the configuration 1200 can also include a timer or other time measuring component to count the time points from the user equipment 110 for establishing the downlink handover in step 11〇3. The time the information has passed. Furthermore, according to some embodiments, the configuration 1200 of the nodes 12〇, 13〇, 14〇 may also include a central processing unit (CPU), a microprocessor, and a peripheral interface controller (PIC) micro A controller, or any other suitable device that can be adapted to interpret computer program instructions and process data. It should be noted that the units 1210 through 1240 included in the configuration 12 of the nodes 120, 130, 140 should be considered separate logical entities and not necessarily separate physical entities. Any, some, or all of the units 1210 through 1240 may be included or co-configured within the same physical unit. However, to facilitate understanding of the functionality of configuration 1200 in nodes 12, 13, and 140, the included units 121A through 124 are illustrated as separate physical units in FIG. As a non-limiting example, according to some embodiments, the sending unit 1210 and the receiving unit 230 may be included in a physical unit (a transceiver), which may include a transmitter circuit and a receiver circuit. It transmits and transmits an RF signal via an antenna and receives an incoming RF signal, such as an audio call and/or a data signal, for example, 137233.doc -27-200939838. The antenna can be an embedded antenna, a retractable antenna, or any antenna known to those skilled in the art without departing from the scope of the present invention. The radio frequency signals transmitted between the user equipment 110 and the nodes 12A, 13A, 14A may include both traffic and control signals, such as paging signals/messages for incoming calls, which may be used to establish and maintain One of the other party voice calls communicate or transmits and/or receives data with other nodes 120, 130, 140, such as SMS, email or Kali 8 messages. 13 is a flow chart illustrating a method in the user equipment 110 for improving the downlink between the cells 121, 132 in the radio access network 1 to the user equipment 110. A successful ratio of hard handoffs for connections. The user equipment 110 and the radio access network 1 can be handed over from the uplink of the uplink, such as soft and/or softer handover. The user device 110 can be, for example, a mobile radiotelephone. In order to properly improve the success rate of hard handover, the method may include several steps 1301 to 1307. Note, however, that the method steps 13〇1 to 13〇7 实行 may be performed in another sequence order other than the enumeration indications, and some (eg, step 1301 and step 13〇2) or even all steps may be simultaneously or A replacement, arbitrary reconfiguration, decomposed or even the exact opposite sequence is implemented. It is further noted that certain presented method steps (e.g., step 1301) are optional and may only be practiced in certain specific embodiments. The method can include the following steps: Step 1301 receives a start time value. The start time value is received from a node 120, 130, 140 within the radio access network 100. The start time value establishes 137233.doc • 28· 200939838 a time interval sufficient for the initiation of the downlink cell and the start of the target cell 132 (eg radio link reconfiguration) in the preparation of the downlink handover And a change in the MAC-d flow). Step 1302 receives information from the radio access network 100 for authorizing the user device 110 to make a decision as to whether to initiate one of the downlink handover procedures. According to some embodiments, the received grant may be related to one or more selected cells 121, 132. However, according to some embodiments, the grant may be related to at least one cell in the active set of one of the user devices 11 121, 132. The information received from the radio access network 100 can optionally include handover trigger criteria (e.g., target cell pre-configuration) that is used by the user equipment when making decisions regarding whether to perform the downlink handover. 11〇 to use. Step 1303 performs downlink handover from a source cell 121 to a target cell 132 in accordance with the authorization decision. Step 1304 ▲ Deng, the user device! a current time value of i (eg, a current connection, a box number) 'alpha responds to a decision to perform the downlink handover'. The current time value indicates when to perform the downlink handover. decision making. Step 1305 137233.doc -29- 200939838 calculates a point in time for implementing the downlink key handover. According to some embodiments, the sixty calculations may be based on the registered current time value and the start time value. Step 1306 sends timing information to the radio access network 1 . The timing information includes information for establishing the calculated time point. According to some alternative embodiments, the timing information may include the calculated time point. However, according to some embodiments, the timing information may include the current time value, such as a current connection frame number. Step 1307 initiates the downlink handover at the calculated point in time.囷14 schematically depicts a specific embodiment of a configuration 14 in a user equipment 11 for modifying a cell 121, 132 in a radio access network to the user A success rate of hard handover of one of the downlink connections of the device 11. The user equipment and the radio access network 1 are capable of performing diversity handover of uplink communications, such as soft and/or soft handover. The user device 110 can be represented by a portable communication device (e.g., like a mobile cellular phone). For the sake of clarity, and in order not to express the reader's non-essential complexity in understanding the functionality and advantages of the method and configuration 14 within the user device 110, it will be used to implement steps 13〇1 through 13 Any internal electronic device of the user device 110 that is not absolutely necessary for the present method of FIG. 7 is omitted from FIG. The configuration 1400 includes a receiver 1420. The receiver 142 is adapted 137233.doc -30-200939838 to receive a decision from the radio access network 100 for authorizing the user equipment 110 to initiate a downlink handover procedure. News. The configuration 1400 further includes a decision unit 1430 that is adapted to perform sub-key handoffs from a source cell 121 to a target cell 132 in accordance with the received authorization decision.

Again, the configuration 1400 includes a computing unit 1450. The computing unit 1450 is adapted to calculate a point in time for performing the downlink handover and initiate downlink handover at the calculated point in time. The computing unit 1450 can include a central processing unit (CPU), a microprocessor, a peripheral interface controller (PIC) microcontroller, or any other suitable device that can be adapted to interpret computer program instructions and process data. The configuration 1400 can also include a registration unit 1440, as desired. The optional registration unit 1440 included in some embodiments may be configured to register a current time value. The current time value may be a current connection frame number of the user equipment 11 . This registration can be made in response to making a decision to perform the downlink handover. The registered current time value indicates when a decision to perform the downlink handover is made. Again, the configuration 1400 can be advertised as desired 1460. The transmitter 1460 can be adapted to send timing information to the radio access network 1 for establishing the calculated point in time. Thus, the receiver that has sent the timing information (e.g., like the node 12 〇, 130, 14 〇) can establish when (p) the time of the handover. In addition, the configuration 1400 can optionally include a singularity of singularity 1 470 233.doc 200939838 The timer unit 1470 can be adapted to measure or count the elapsed time. It should be noted that included in the node The units 1420 to 1470 within the configuration 14 of 110 should be considered separate logical entities, and are not necessarily separate physical entities. Any, some or all of the units 1420 to 1470 may be included or co-located in the same physical unit However, to facilitate understanding of the functionality of the configuration 1400 in the user device 11, the included units 1420 through 1470 are illustrated as separate physical units in Figure 14. ❹ Only as a non-limiting example, according to a certain In some embodiments, the sending unit 1460 and the receiving unit 1420 may be included in a physical unit (a transceiver), and may include a transmitter circuit and a receiver circuit, respectively, transmitting and transmitting an RF signal via an antenna. And receiving incoming RF signals, such as voice calls and/or data signals. The antenna can be an embedded antenna, a retractable antenna, or a person familiar with the art. Any antenna that is known without departing from the scope of the invention. The radio frequency signals transmitted between the user equipment 11 and the nodes 12, 13, 〇, 14 可 may include both traffic and control signals, for example for A paging message/message of an incoming call that can be used to establish and maintain communication with one of the other party's voice calls or with other nodes 12, 13, 〇, l4, and/or receive data 'eg SMS, email or MMS messages The method for improving the success rate of hard handover of a downlink connection may be through the network node 12, 130, M0 - or a plurality of processors 1240 and through the user equipment 11 - or multiple processors" are implemented with computer code for performing the functions of the methods. The above mentioned code can also be provided as a computer program product. For example, 137233.doc -32- 200939838 takes the form of a data carrier carrying a computer code for loading into the processor unit. The medium-based method is based on this solution. The data carrier can be a CD ROM disc, a memory stick, or any other suitable medium' such as a disc or tape that retains machine readable material. In addition, the computer code can be provided as a pure code on a server and can be downloaded to the network nodes 12, 13, 14 and/or the user device 110 remotely. Thus, a computer readable medium encoded by a computer program for improving the success rate of hard handover of the downlink connection can perform the method steps according to steps 1101 to 1105. Moreover, a computer readable medium is provided for improving the success rate of hard handover of downlink connections between cells 121, 132 to a user equipment 110 in the radio access network 100. A computer program to encode. The user equipment 110 and the radio access network 100 are capable of performing diversity handover of uplink communications, such as soft and/or softer handover. The computer program includes a computer program code configured to cause a processor 124 included in the network node 120, 130, 140 to perform the following steps: to authorize the user device 11 to perform Information about whether to initiate a decision of one of the downlink handover procedures is sent to the user device 110 while the computer program code is configured to cause the processor 1240 to perform the following steps: receiving from the user device 11 Used to establish information for implementing a time point of the downlink handover. Furthermore, the computer program code is configured to cause the processor 124 to perform the steps of: starting a source cell i2i and 137233.doc in the preparation of the downlink handover before the established time point. -33- 200939838 In addition, the computer program code implements the activation of the target access cell 132 by configuring the radio access network at a set point in time. In order for the processor 124 to traverse the downlink in the established path 100. Therefore, the method of steps 1301 to 1307 can be carried out at the same time as a computer readable medium encoded by a computer program for the success rate of the hard handover for the improved-down link connection. ❹

Furthermore, 'providing a computer-readable medium for improving the hard handover of the cells 121 and 132 in a radio access network U to the user equipment 11 The - the success rate - the computer program is coded. The user equipment 110 and the radio access network 1 are capable of performing diversity handover of uplink communications, such as soft and/or soft handover. The computer program includes a computer program code configured to cause a processor 1450 included in the user device 110 to perform the steps of receiving a license from the radio access network 1 for authorizing the The user equipment 11 performs information on whether to initiate a decision of one of the downlink handover procedures. At the same time, the computer program includes a computer program code configured to cause a processor 1450 included in the user device 110 to perform the following steps: from a source cell 121 to a target cell 132 according to the authorization decision. Downstream key handover. Moreover, the computer program includes a computer program code configured to cause a processor 145 included in the user device 110 to perform the following steps: calculating a point in time for performing the downlink handover . In addition, the computer program includes computer code that is configured to cause a processor 1460 included in the user device 110 to perform the step of initiating downlink handover at the calculated point in time. The enumerated steps are performed when the 137233.doc -34-200939838 brain code is loaded into the processor 1450. The present invention can be embodied as a configuration 1200 in a network node 120, 130, 140, a configuration 14 in a user equipment 11A, a method in the network node 120, 130, 140, and a method. A method 'or computer program product' in the user device 11(). Therefore, the present invention may take a completely hardware embodiment, a software embodiment, or a combination of software and hardware aspects (which is generally referred to herein as "circuit" or "module shape In addition, the invention may take the form of a computer-usable product on a computer-usable storage medium having computer-readable code embodied in the medium. Any suitable computer-readable medium may be utilized, including Hard disk, CD-ROM, optical storage device, transmission media such as one that supports the Internet or an internal network, or magnetic storage device. Written in any arbitrary programming language (eg Java®, Smalltalk or C++) for implementation Computer code for the operation of the present invention. However, the steps for carrying out the method can also be written in any conventional programming language (e.g., "C" programming language and/or a lower level group). Computer code. The code can be completely on nodes 120, 13〇, 14〇, part on nodes 12〇, 130 140 (as a stand-alone software package), and part on node 丨2 And '130, 140 and partially performed on a remote computing device or all on the remote computing device. In the latter scenario, the remote computing device can be transmitted through a local area network (LAN) or a wide area network (WAN) is connected to the node, 130, 140, or can be connected to an external computer, for example, via an internet connection using, for example, an internet service provider. Further, reference is made to the present invention in accordance with the present invention. The method is partially illustrated by a network node 137233.doc-35·200939838 120, 130, 140, a user device device, a method, and a block diagram of a computer program product. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams can be implemented by computer program instructions. Such computer program instructions can be provided to a general purpose computer, A dedicated computer or other processor that can program the data processing device to generate a machine for execution by a processor of the computer or other programmable data processing device

The instruction building component is used to implement the functions/acts specified in the flowcharts and/or block diagrams. The computer program instructions can also be stored in a computer readable memory that is booted by a computer or other programmable data processing device in a particular manner to cause an instruction stored in the computer readable memory to produce an article. It contains the instruction components that implement the functions/actions specified in the flowcharts and/or block diagrams. The computer program instructions can also be loaded onto a computer or other programmable data processing device to enable the series of steps to be performed on the computer or other programmable device. The instructions executed on the computer or other programmable device provide steps for implementing the functions/acts specified in the flowcharts and/or block diagrams. The terms used to describe the specific exemplary embodiments shown in the drawings are not intended to limit the invention. In the drawings, the same numbers refer to the same elements. The phrase "and/or" as used herein includes any and all combinations of one or more of the associated listed items. 137233.doc -36- 200939838 From the Latin word review " Introduction or Designation - Binding ~ can be used to wish to limit such items. Target] and not + " also used in this article is derived from the Latin abbreviation of the Latin id ets " commonly used "i rent J film ui. Tone said " and: two from a more general narrative provisions - specific items one: two? Or the derivative of "etc." 1 Latin word... It has been used herein to indicate that there is a similarity to the surgeon, and:: Γ, however, these features are familiar to this technique because The reason for this is omitted, and it is necessary to confuse a few new readers with an understanding of the subject matter presented. Concise and/or clear, the functions or structures familiar to those skilled in the art may not be described in detail. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, It should be further understood that the term "including " and / or" includes "specifies the existence of the declared feature, the overall 'step' operation' and/or the component, but does not preclude the presence or addition of One or more other features, integers, steps, operations, components, components, and/or groups thereof. It should be understood that when an element is referred to as "connect" or "" to another 70 piece, it may be directly connected or coupled to the other element or there may be an intervening element. In addition, the "connection" light cr*7 used in this article includes wireless connections or conjunctions. The term " and / or any and all combinations of one or more of the associated listed items are used herein. Deaf people understand that the vocabulary "information" as used in this article means not only the printed text but also the images, images, and slides that can be used to present the clip information or a message to a user using 137233.doc •37- 200939838 , Syria, ., ,, animated graphics, maps, multiple (four), movies, footage, sound, sculpture, music, spoken words, etc. And another! DEFINITIONS All of the terms (including technical know-how) used herein are intended to be understood by those skilled in the art. It should be understood that such terms as (four) in a commonly used dictionary should be interpreted as meaning and its meaning in the relevant technical context, and should not be interpreted from an idealized or overly formal point of view, unless this is the case. Clearly defined.

BRIEF DESCRIPTION OF THE DRAWINGS The present method and apparatus will now be described in more detail with reference to the drawings in which: FIG. 1 is a schematic block diagram of one of the radio access networks in accordance with some embodiments. . Figure 2A is a schematic block diagram illustrating the first phase of one of the action scenarios. Figure 2B is a schematic block diagram illustrating a second phase of one of the action scenarios. Figure 3A is a schematic block diagram illustrating an exemplary component of a user device in accordance with some embodiments. Figure 3B is a block diagram showing one of the user devices in accordance with some embodiments, wherein the user device is embodied as a cellular phone. 4 is a schematic block diagram of method steps in accordance with some embodiments. Figure 5 is a block diagram illustrating the steps of the method according to some embodiments 137233.doc • 38 - 200939838. Figure 6 is a schematic block diagram illustrating a method step in accordance with some embodiments. Figure 7 is a block diagram showing one of the startup procedures in accordance with some embodiments. Figure 8 is a schematic block diagram illustrating the structure of a network node in accordance with some embodiments. Figure 9 is a schematic block diagram illustrating a measurement report receiving procedure.

Figure 10 is a schematic block diagram illustrating a delegated cell change procedure. Figure 11 is a schematic block diagram illustrating one of the methods of a network node in accordance with some embodiments. Figure 12 is a schematic block diagram showing one of the configurations of a user device in accordance with some embodiments. Figure 13 is a schematic block diagram of one of the methods of a user device in accordance with some embodiments. Figure 14 is a schematic block diagram showing one of the configurations of a user device in accordance with some embodiments. [Main component symbol description] 1〇〇Radio access network/radio network infrastructure 105 Vehicle 110 User equipment (UE) 120 First base station/network node 121 Source cell 137233.doc •39· 200939838 130 Second Base Station/Network Node 132 Target Cell 140 Control Node/Radio Network Controller/Network Node 150 Cell Boundary '305 Transceiver. 310 Processing Unit 315 Memory® 320 Input Device 325 Output Device 330 Bus Bar 335 Control System/Radio Link Control System 340 Speakers 345 Keypad 350 Display 355 355 Microphone 1200 Configuration 1210 Transmitter/Unit 1230 Receiver/Unit 1240 Computing Unit/Unit/Processor 1400 Configuration 1420 Receiver/Unit 1430 Decision Unit/Unit 1440 Registration unit/unit 137233.doc -40- 200939838 1450 Calculation unit/unit/processor 1460 Transmitter/unit 1470 Timer unit/unit ❹ 137233.doc •41

Claims (1)

200939838 VII. Patent application scope: 1. One node (120, 13〇, 140) in a radio access network (1〇〇) _ used to improve the radio access network (1()〇) a method for successfully delivering a hard handover of a downlink connection between a cell (121, 132) to a user equipment (100), the user equipment (U0) and the radio access network (100) capable of Performing diversity handover of uplink communications, such as soft and/or softer handover, the method comprising the steps of: authorizing the user equipment (110) to perform one of the procedures for initiating a downlink handover procedure The information of the decision is sent (1101) to the user equipment (110), and the information from the user equipment (110) for establishing a time point of performing the downlink handover is received (1103), Before the time point, in the preparation of the downlink handover (1104) - one of the source cell (丨2丨) and a target cell (132) is started; and 2. 3. 4. at the established time Point 'implement (1105) the downlink in the radio access network (100) Delivery. The method of claim 1, wherein the authorization relates to one or more selected cells (121, 132). The method of claim 2, wherein the authorization is for at least one cell (121, 132) in a valid set of one of the user equipments (11〇). The method of any one of the preceding claims 1 to 3, wherein the information sent to the user equipment (110) includes a handover trigger criterion such as a trigger cell pre-configuration, which is related to whether to initiate The decision is made by the user equipment (110) when the decision is made by the downlink 137233.doc 200939838. The method of any of the preceding clauses 1 to 4, wherein the method further comprises the step of: transmitting (1102) a start time value to the user equipment (110), the start time value establishing a time interval, It is sufficient for one of a source cell (121) and a target cell (132) to be activated in the preparation of the downlink handover. The method of any one of the preceding claims, wherein the information received from the user sigh (1 10) includes information indicating that the user equipment (110) has made the start of the downlink One of the handover procedures determines and identifies the target cell (132) to which the downlink is handed over. The method of any one of claims 1 to 6, wherein the method is at least partially implemented, for example, in a base station (120, 130) of the radio access network (1) or In one of the nodes (120, 130, 140) of a radio network controller (14〇). 〇8. In a node (120, 130, mo) of a radio access network (1〇〇) for improving the cell (i2i, 132) in the radio access network (1〇〇) The user equipment (11〇) and the radio access network (100) are capable of uplinking to a configuration (1200) of a hard handover success rate of one of the user equipments (11〇) Diversity handover of a road communication, such as soft and/or softer handover 'This configuration (丨2〇〇) contains: a transmitter (1210) adapted to authorize the user equipment (Π0) Information regarding whether to initiate a decision of one of the downlink handover procedures is sent to the user equipment (11〇), 137233.doc -2 - 200939838 - Receiver (1230) 'is adapted to receive from the user Information of the device (110), the information establishing a point in time for performing the downlink handover, the juice calculation unit (1240) adapted to be in the downlink before the established time point Initiating the initiation of a source cell (121) and a target cell (132), and the established The downlink handover in the radio access network (100) is performed at a time point. 9. A user equipment (11〇) for improving downlink connection between a cell (121, 132) in a radio access network (100) to the user equipment (11〇) A method of successfully delivering a ratio of hard handover, the user equipment (110) and the radio access network (100) being capable of performing diversity handover of uplink communications, such as soft and/or soft handover, the method comprising The following steps: receiving (1302) information from the radio access network (丨〇〇) for authorizing the user equipment (110) to make a decision on whether to initiate the downlink handover procedure, according to The authorization decision (1303) implements downlink handover from a source cell (121) to a target cell (132), and calculates (1305) a time point for performing the downlink handover; and At the point in time, the start (1307) downlink handover. 10. The method of claim 9, wherein the method further comprises the step of: transmitting timing information (13 06) to the radio access network (1 〇〇) for establishing the calculated point in time. 11. The method of any one of clauses 9 or 1 wherein the authorization is for one or more selected cells ("21, 132) for 137233.doc 200939838. 12. The method of any one of claims 9 to 11, wherein the authorization is for at least one cell (121, 132) in a valid set of one of the user devices (110). 13. The method of any of the preceding clauses 9 to 12, wherein the information received from the radio access network (100) comprises a handover trigger, such as a target cell pre-configuration 'the system is in progress The decision on whether to perform the downlink key handover is used by the user equipment (11〇). M_ The method of any one of the preceding claims 9 to 13 comprising the further step of: receiving (1301) a start time value from the radio access network (1〇〇), the start time value establishment time An interval, which is sufficient for the source cell (m) and the target cell (132) to be initiated in the preparation of the downlink key handover, such as radio link reconfiguration and - flow change; 〇 registration 〇 3 〇 4) The current time value of one of the user equipments (10)) (for example, a current connection frame number), the heart should perform the decision to perform the link delivery, and the value of the destination (4) indicates when to implement The decision of the downlink key handover; and wherein the step of calculating the time point 包含3〇5) includes calculating the stomach_H based on the registered current time value and the startup time value. 15. The foregoing claims 9 to 14 Any of the messages contains the calculated time point. The method of the present invention, wherein the timing element A is in accordance with any of the preceding claims 9 to 15, wherein the timing element 137233.doc 200939838 includes, for example, the registered current time value of a current connection frame number. 17 in a user equipment (11〇) for improving the downlink key connection between the cells (121, 132) in a radio access network (100) to one of the user equipments (110) The configuration of the success rate of hard handover (1400), the user equipment (110) and the radio access network (100) being capable of performing diversity handover of uplink communications, such as soft and/or soft handover, The configuration (1400) includes: a receiver (1420) adapted to receive from the radio access network (100) for authorizing the user equipment (110) to determine whether to initiate the downlink handover Information of one of the decision-making procedures, a decision unit (1430) adapted to perform downlink handover from a source cell (121) to a target cell (132) according to an authorization decision, a computing unit (1450) And adapted to calculate a time point 'for performing the downlink handover' and to initiate downlink key handover at the calculated time point. 137233.doc