WO2009089743A1 - Procédé de libération de ressources, équipement de communication et système de réseau - Google Patents

Procédé de libération de ressources, équipement de communication et système de réseau Download PDF

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Publication number
WO2009089743A1
WO2009089743A1 PCT/CN2008/073769 CN2008073769W WO2009089743A1 WO 2009089743 A1 WO2009089743 A1 WO 2009089743A1 CN 2008073769 W CN2008073769 W CN 2008073769W WO 2009089743 A1 WO2009089743 A1 WO 2009089743A1
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WO
WIPO (PCT)
Prior art keywords
terminal
resource
release
random access
access channel
Prior art date
Application number
PCT/CN2008/073769
Other languages
English (en)
French (fr)
Inventor
Jie Ma
Chuanfeng He
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=49289885&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009089743(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CN2007103078690A external-priority patent/CN101472344B/zh
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to PCT/CN2008/073769 priority Critical patent/WO2009089743A1/zh
Priority to ES08870773.2T priority patent/ES2448546T5/es
Priority to EP08870773.2A priority patent/EP2224763B2/en
Publication of WO2009089743A1 publication Critical patent/WO2009089743A1/zh
Priority to US12/826,265 priority patent/US20100265919A1/en
Priority to US13/689,388 priority patent/US9674110B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D7/00—Rakes
    • A01D7/06—Rakes with tines specially shaped or attached
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D5/00—Containers for whetstones for use during harvesting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a resource release method, a communication device, and a network system.
  • the enhanced random access procedure mainly includes: after the terminal UE (user equipment) receives the response through the AICH (Acquired Indicator Channel), the Node B (Node B) passes the downlink channel.
  • the uplink resource allocation message is sent to the accessed UE, and the HS-RACH resource that the UE can use is notified.
  • the downlink channel carrying the uplink resource allocation message may be an AICH or an HS-PDSCH (High Speed Physical Downlink Shared Channel).
  • the UE that obtains the resource allocation uses the uplink resource to send the UE identifier to the Node B, and the Node B carries the UE identifier through the downlink channel to respond to the determined UE.
  • the UE that receives the response within the predetermined time period obtains the uplink resource, and can continue to use, and the UE that has not received the response stops using the uplink resource.
  • the downlink channel carrying the UE identifier may be an E-AGCH (E-DCH Absolute Grant Channel) or an HS-PDSCH.
  • the inventors found that the prior art has the following problems: In the prior art, a scheme of using HS-RACH instead of RACH to implement uplink transmission has been proposed, but the scheme has not provided HS-RACH. The method of releasing resources.
  • the technical problem to be solved by the embodiments of the present invention is to provide a resource release method, a communication device, and a network system to solve the resource release problem of the HS-RACH.
  • the embodiment of the invention provides a resource release method, including:
  • Determining the allocated high-speed random access channel resource according to the acquired trigger information Determining the allocated high-speed random access channel resource according to the acquired trigger information; releasing the allocated high-speed random access channel resource after determining to release the allocated high-speed random access channel resource.
  • the embodiment of the invention provides a communication device, including:
  • An information acquiring unit configured to acquire information related to resource release
  • a resource release unit configured to determine, according to the information acquired by the information acquiring unit, the allocated high-speed random access channel resource, and release the allocated high-speed random access channel resource at the local end
  • the embodiment of the invention provides a network system, including:
  • a network side device configured to acquire trigger information, determine release of the allocated high-speed random access channel resource according to the acquired trigger information, and release the allocated at the local end after determining to release the allocated high-speed random access channel resource High speed random access channel resources.
  • the prior art proposes a scheme for implementing uplink transmission by using HS-RACH instead of RACH, but the scheme does not provide a release method of HS-RACH resources, then the used HS-RACH resources may always be
  • the solution of the prior art is not complete, and the solution of the solution proposed by the prior art is not complete, and the technical solution provided by the embodiment of the present invention is: obtaining the trigger information; determining the release allocation according to the obtained trigger information.
  • High-speed random access channel resource after the determining to release the allocated high-speed random access channel resource, releasing the allocated high-speed random access channel resource, so that the used high-speed random access channel HS-RACH resource can be According to the specific situation, the process of using HS-RACH instead of RACH to implement the uplink transmission scheme is improved, which makes the scheme more suitable for practical applications.
  • FIG. 1 is a flowchart of a resource release method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a method for releasing a resource according to Embodiment 2 of the present invention
  • FIG. 3 is a flowchart of a method for releasing a resource in Embodiment 2(b) of the present invention
  • FIG. 4 is a flowchart of a method for releasing resources in a third embodiment of the present invention.
  • 5 is a flowchart of a method for releasing resources in a fourth embodiment of the present invention
  • 6 is a flowchart of a method for releasing resources in a fifth embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a terminal 2 according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • the embodiment of the invention provides a resource release method for solving the resource release problem of the HS-RACH.
  • the HS-RACH resource is released according to the trigger information, and may be released by the network side (such as Node B) or the terminal by sending explicit signaling.
  • the method of sending the explicit signaling may be indicated by the signaling of the physical layer, or by the Control Data Unit (PDU) of the layer 2, and may be implemented by other methods.
  • PDU Control Data Unit
  • the trigger information that triggers Node B to make a release decision can be:
  • the information sent by the terminal indicates that the terminal has no data to send, or indicates that the data sent by the terminal is lower than the threshold, or indicates that the terminal replaces the cell; the Node B itself detects that the terminal has no data to send, or indicates that the terminal sends data less than Width value, or information indicating that the terminal replaces the cell; is determined by the Radio Network Controller (RNC) according to the amount of data sent by the terminal, the cell load of the terminal, or the service quality requirement of the terminal, and is used to change the terminal status.
  • RNC Radio Network Controller
  • the special scheduling information SI (Scheduling Information) that can be sent by the terminal (UE), which is sent by the terminal, indicates that the terminal does not send data, or indicates that the amount of data sent by the terminal is lower than the threshold, or indicates that the terminal replaces the cell, or A special physical layer control channel indication.
  • the content of the SI includes: the highest priority logical channel ID (4 bits) in the buffer area, the cache occupancy of the UE, and the power remaining space (5 bits) of the UE.
  • the UE's cache occupancy includes: The highest priority logical channel data occupies the proportion of all caches and the state of all caches. Whether the resource needs to be released may be determined according to the cache occupancy in the SI. 1) The UE remains in CELL_FACH (forward access channel state), does not change the cell, and no uplink data can be sent.
  • CELL_FACH forward access channel state
  • the UE does not change the cell but has to perform state transition, ready to switch to CELL-DCH (Dedicated Channel State) or CELL-PCH (Paging Channel State).
  • CELL-DCH Dedicated Channel State
  • CELL-PCH Paging Channel State
  • the UE does not perform state transition but needs to perform cell replacement and continues to send uplink data.
  • Embodiment 1 Three embodiments for transmitting explicit signaling by the network side (such as Node B) are introduced.
  • Embodiment 1 is a diagrammatic representation of the network side (such as Node B)
  • FIG. 1 it is a flowchart of a resource release method according to an embodiment of the present invention.
  • the application scenario is that the UE does not need to be migrated, and the cell is not replaced.
  • Figure 1 includes the steps:
  • Step 101 The Node B receives the scheduling information SI sent by the UE.
  • the UE During the use of the HS-RACH to send uplink data, the UE sends the SI to the Node B periodically or when new data is required to be sent.
  • the SI carries the data buffer capacity of the UE.
  • the scheduling information SI may be transmitted separately or carried in the uplink data for transmission.
  • Step 102 The Node B determines, according to the information in the received scheduling information SI, that the UE is required to release the resource.
  • Node B When Node B finds that the data buffer occupancy indicated by the SI is lower than a certain threshold or is 0, it decides to require the UE to release the resources, and starts to release the resources related to the UE.
  • Step 103 The Node B sends a release indication to the UE.
  • the Node B When the data buffer occupancy indicated by the SI in the SI is 0, the Node B sends a release indication to the UE, requesting the UE to release the resource.
  • the way to release the indication can be as follows:
  • the MAC layer control PDU format includes: the header includes: a type indication ( Used to indicate whether it is a control PDU), the length of the PDU, the CRC (Cyclic Redundancy Check) value of the PDU;
  • the payload part contains: Type bits of control: For example: resource allocation bits, resource release bits, scheduling indication Bits, time adjustment bits, resource change bits, quality measurement bits, etc. Setting these bits to 1 indicates that the corresponding Information, set to 0 means not included; or vice versa.
  • the resource release part you can include: The specific resources released and the reason for the release.
  • E-TFC E-DCH Transport Format Combination
  • CQI Channel Quality Indicator
  • the Node B When the data buffer indicated by the SI in the SI is not 0 but lower than a certain threshold, the Node B sends a release indication to the UE, requesting the UE to release the resource.
  • the manner of releasing the indication may also be as described above.
  • the release indication may instruct the UE to re-send the waiting time of the random access, in addition to indicating the release of the resource, so that the resource of the UE may be forcibly released due to the Node B, but The UE has uplink interference caused by frequent random access due to data transmission.
  • This waiting time may be carried by the control PDU of the MAC layer or by physical layer signaling.
  • the value of the waiting time can be expressed as a multiple of a certain time unit. For example, if the waiting unit is 125ms and the waiting value is actually 256ms, it is expressed as 2.
  • Step 104 After receiving the release indication, the UE sends the data to the Node B to be retransmitted.
  • the UE After receiving the release indication, the UE first retransmits the data packet that has been sent before receiving the release indication but has not received the acknowledgement (ack) message returned by the Node B. The UE does not send new data after receiving the release indication, and can only retransmit those MAC-i/MAC-E packets that have not been acknowledged.
  • ack acknowledgement
  • Step 105 The Node B releases the related resources of the UE on the local side.
  • the Node B After correctly receiving the data packet that needs to be retransmitted, the Node B officially releases the physical resources used by the UE.
  • Step 106 The UE performs resource release.
  • the UE After retransmitting the data packet and obtaining the ack message returned by the Node B, the UE releases the resource, and releases the cached data of the MAC layer and the process cache, the parameter table, and the physical resource related to the physical layer HS-RACH resource.
  • a retransmission threshold is, for example, the maximum waiting time or the maximum number of retransmissions. The parameter values set on both sides are equal.
  • the triggering of the Node B may be: a special physical layer control channel indication, indicating that the network has no data. Sending; Node B detects that the HS-RACH uplink signal is lower than a threshold for a period of time, or the data packet received from the UE is in a period of time, or the Node B detects that the UE is in the activation period for a period of time. No data uploads, etc.
  • the Node B may have such a procedure before releasing resources:
  • the UE sends an HS-RACH release response to the Node B, and the Node B receives the release response before releasing the resource.
  • the triggering information for triggering the resource release may be multiple, and the resource release indication may be sent in different manners, so that the resource usage status of the terminal and the network side are consistent.
  • the application scenario is that the UE does not replace the cell but needs to perform state transition, including the RNC notifying the Node B to release the resource and the UE notifying the Node B to release the two scenarios, which respectively correspond to the second embodiment of the present invention (FIG. 2) a) flow chart of the resource release method, FIG. 3 is a flowchart of the second embodiment of the present invention (b) resource release method.
  • a flowchart of a method for releasing a resource according to Embodiment 2 of the present invention includes the following steps: Step 201: A RNC receives a measurement parameter.
  • the measurement parameters received by the RNC are, for example, parameter information such as the current service data amount of the UE or the service quality requirement of the UE, and the measurement parameters are sent by the UE to the RNC through the Node B.
  • the RNC can further combine the load of the cell in which the UE is measured.
  • Step 202 The RNC determines to change the UE status according to the measurement parameter.
  • the RNC decides to change the state of the UE, for example, to move the state of the UE to the CELL DCH state, according to the case where the service data of the UE exceeds the threshold, the load of the cell where the UE is located is too large, or the service quality of the UE does not meet the requirements.
  • Step 203 The RNC initiates a radio link setup process, and sends a radio link setup request to the Node B.
  • the radio link setup request sent by the RNC carries the UE ID and the activation time.
  • the function of the UE ID is to let the Node B know which UE will move to the CELL-DCH state, and also to notify the Node B that the UE needs to release resources when the UE migrates.
  • the effect of the activation time is to tell Node B when the wireless link can be enabled.
  • the activation time may not be carried in the radio link setup request.
  • Node B When the activation time is not carried, Node B will immediately enable the new physical channel, but because the RNC knows exactly the UE's activation time, the RNC will start receiving the uplink data when the activation time arrives.
  • Step 204 After receiving the radio link setup request, the Node B establishes a radio link.
  • the Node B After receiving the radio link setup request, the Node B knows that the HS-RACH resource associated with the UE ID is to be released, establishes a radio link according to the request, sends a radio link setup response to the RNC, and performs physical layer synchronization with the UE, and the synchronization is completed. After that, the radio link recovery message is sent to the RNC, but it is not enabled immediately, but is enabled after the activation time arrives.
  • Step 205 The RNC sends a reconfiguration message to the UE.
  • the RNC sends a reconfiguration message to the UE and indicates that the UE state transitions to the CELL_DCH state.
  • the activation time carried in the reconfiguration message is consistent with the establishment of the radio link.
  • the RNC sends a reconfiguration message requesting the UE to perform parameter reconfiguration and using the new configuration.
  • the new configuration it also means that the UE needs to release the original resource.
  • Step 206 After receiving the reconfiguration message, the UE performs parameter reconfiguration and returns a reconfiguration complete message to the RNC.
  • Step 207 The UE sends the data to be retransmitted to the Node B.
  • the UE will transmit the packet that has been sent before receiving the reconfiguration message but has not received the acknowledge ack message returned by the Node B for retransmission. After receiving the reconfiguration message, the UE can no longer send new data, and can only retransmit those MAC-i/MAC-E packets that have not been acknowledged.
  • Step 208 The UE and the Node B use the new configuration after reaching the activation time, and release resources respectively.
  • the Node B releases the original HS-RACH resource of the UE, and starts to interact with the UE using the new configuration.
  • the original HS-RACH resource is released.
  • the resource release may be implemented at the same time by the reconfiguration process, and the two parameters of the UE ID and the activation time are added in the radio link setup request sent by the RNC.
  • the UE ID can let the Node B know which UE will move to the CELL-DCH state, and also notify the Node B to release resources when the UE migrates.
  • the activation time allows Node B and the terminal to know when to enable the new configuration.
  • a flowchart of a method for releasing a resource in the second embodiment of the present invention includes the following steps: Steps 301-302. The two steps are the same as steps 201-202 of the previous embodiment, and are not described in detail herein.
  • Step 303 The RNC initiates a radio link establishment process, and sends a radio link setup request to the Node B.
  • the radio link setup request sent by the RNC carries the activation time without carrying the UE ID.
  • the effect of the activation time is to tell Node B when the wireless link can be enabled.
  • the activation time may not be carried in the radio link setup request.
  • Node B When the activation time is not carried, Node B will immediately enable the new physical channel, but because the RNC knows exactly the UE's activation time, the RNC will start receiving the uplink data when the activation time arrives.
  • Step 304 After receiving the radio link setup request, the Node B establishes a radio link.
  • the Node B After receiving the radio link setup request, the Node B establishes a radio link according to the request, sends a radio link setup response to the RNC, and performs physical layer synchronization with the UE. After the synchronization is completed, the radio link recovery message is sent to the RNC, but is not immediately enabled. .
  • Step 305 The RNC sends a reconfiguration message to the UE.
  • the RNC sends a reconfiguration message to the UE and indicates that the UE state transitions to the CELL_DCH state.
  • the activation time carried in the reconfiguration message is consistent with the establishment of the radio link.
  • Step 306 After receiving the reconfiguration message, the UE performs parameter reconfiguration.
  • Step 307 The UE sends a release request to the Node B.
  • New SI information can be carried in the send release request.
  • the sending timing of the release request may be: After the activation time is reached, the UE sends a release request to the Node B, or may be: immediately after the parameter reconfiguration is completed.
  • Step 308 The UE sends the data to be retransmitted to the Node B.
  • the UE will retransmit the data packet that has been sent before receiving the reconfiguration message but has not received the acknowledge ack message returned by the Node B.
  • the UE can no longer send new data, and can only retransmit those MAC-i/MAC-E packets that have not been acknowledged.
  • Step 309 The Node B sends a release indication to the UE.
  • the Node B After receiving the release request of the UE, and receiving the retransmitted data sent by the UE, the Node B releases the data.
  • the original HS-RACH resource of the UE sends a release indication to the UE at the same time.
  • the newly configured wireless link of Node B takes effect.
  • Step 310 After receiving the release indication, the UE releases the resource, and sends a reconfiguration complete message to the network by using the new configuration, and the UE migration state is completed.
  • the UE after the UE completes the reconfiguration operation successfully, the UE sends a release request to the Node B, and the release reason is that the state transitions to the CELL_DCH.
  • the Node B After receiving the release request from the UE, the Node B sends a release indication to the UE.
  • the Node B and the UE simultaneously release the original HS-RACH resources of the UE, and at the same time, the newly configured radio link of the Node B and the UE starts to take effect, and the UE sends a reconfiguration complete message to the network by using the new configuration.
  • the UE migration status is completed.
  • the UE migrates to the CELL-DCH. If the UE moves to the CELL-PCH state, the UE that is transferred to the CELL-PCH state must send a reconfiguration complete message on the original configuration, so there is no relationship between the RNC and the Node B.
  • the UE performs reconfiguration, and then sends a reconfiguration complete message on the original configuration.
  • the UE After receiving the acknowledgement ACK message returned by the RNC, the UE sends a release request to the Node B, and sends a heavy Pass data to Node B.
  • the Node B After receiving the release request, and receiving the retransmitted data sent by the UE, the Node B sends a release indication to the UE, and the UE releases all HS-RACH resources to complete the state transition.
  • the second embodiment of the present invention does not necessarily require data retransmission before the resource is released.
  • the resource release can be implemented simultaneously through the reconfiguration process, and the activation time parameter is added in the radio link setup request sent by the RNC, and the activation time can let the Node B and the terminal know when to enable the new configuration.
  • FIG. 4 it is a flowchart of a method for releasing resources in a third embodiment of the present invention.
  • the application scenario is that the UE does not perform state transition but needs to perform cell replacement.
  • Figure 4 includes the steps:
  • Step 401 The UE sends the uplink data by using the HS-RACH in the current cell.
  • Step 402 After the UE measures that the cell reselection condition is met, it determines to perform cell reselection.
  • the cell reselection condition is, for example, that the signal quality of the same-frequency cell is relatively poor, and it is necessary to reselect the cell with good signal quality. It is assumed that the UE is in the original cell 1, and the signal quality of the cell 2 is better than that of the cell 1, and the cell update and update are decided. Go to cell 2.
  • Step 403 The UE sends a release request to the Node B of the original cell 1.
  • the release request sent by the UE is a special release request.
  • the highest priority logical channel ID filled in the sending SI is a special reserved value, such as 1111, or all bits in the SI are 0 or 1.
  • the Node B of the original cell can be informed from this special value, and the reason for the release is to replace the cell.
  • the control layer PDU of the MAC layer as described in the first embodiment indicates that the UE needs to release the HS-RACH resource due to the replacement of the cell.
  • Step 404 The UE sends the data to be retransmitted to the Node B of the original cell 1.
  • the UE will retransmit the data packet that has been sent before the release request is sent but has not received the acknowledge ack message returned by the Node B. After receiving the reconfiguration message, the UE can no longer send new data, and can only retransmit those MAC-i/MAC-E packets that have not been acknowledged.
  • Step 405 The Node B of the original cell 1 sends a release indication to the UE.
  • the Node B of the original cell 1 receives the release request of the UE, and after receiving the retransmitted data sent by the UE, releases the original HS-RACH resource of the UE, and sends a release indication to the UE.
  • Step 406 After receiving the release indication, the UE releases the HS-RACH resource of the original cell, and immediately sends the cell update message to the target cell 2 by using the uplink access resource of the target cell 2.
  • the resource release is not performed after the data is retransmitted, and the resource may be released immediately after the release request is sent.
  • the resource release request is sent to the Node B, and the resource release is implemented after the resource release indication is sent by the Node B.
  • FIG. 5 it is a flowchart of a method for releasing resources in a fourth embodiment of the present invention.
  • the application scenario is that the UE does not perform state transition but needs to perform cell replacement.
  • Figure 5 includes the steps:
  • Step 501 The UE sends the uplink data by using the HS-RACH in the current cell.
  • Step 502 After the UE measures that the cell reselection condition is met, it is determined to perform cell reselection.
  • the cell reselection condition is, for example, that the signal quality of the same-frequency cell is relatively poor, and it is necessary to reselect the cell with good signal quality. It is assumed that the UE is in the original cell 1, and the signal quality of the cell 2 is better than that of the cell 1, and the cell update and update are decided. Go to cell 2.
  • Step 503 The UE sends a release indication to the Node B of the original cell 1.
  • the release indication sent by the UE is a special release indication.
  • the highest priority logical channel ID filled in the sending SI is a special reserved value, such as 1111, or all bits in the SI are 0 or 1.
  • the Node B of the original cell can be informed from this special value, and the reason for the release is to replace the cell. Or release the indication through the control layer PDU of the MAC layer.
  • Step 504 After receiving the release indication of the UE, the Node B of the original cell 1 releases the original HS-RACH resource of the UE, discards the data packet that is not correctly received, and does not wait for retransmission of the UE.
  • Step 505 After the UE sends the release indication, immediately release the HS-RACH resource of the original cell, and do not retransmit the data packet that does not receive the correct response, and then immediately send the uplink access resource of the target cell 2 to the target cell 2 Cell update message.
  • the resource release indication is sent to the Node B to implement resource release.
  • FIG. 6 is a flowchart of a resource release method according to Embodiment 5 of the present invention.
  • Figure 6 includes the steps:
  • Step 601 The UE sends the uplink data by using the HS-RACH in the current cell.
  • Step 602 The UE sends a release indication to the Node B.
  • the UE If the UE does not transmit data, or the RLC (Radio Link Control) layer and the MAC layer buffer data buffer amount is 0 for a period of time, the UE considers that it does not continue to use HS-RACH.
  • the need for resources can also freely release resources.
  • the network side Node B is notified by sending an HS-RACH release indication, and the transmission form is: through a special SI, or The MAC layer's control PDU, or physical layer signaling, such as using a special E-TFC value in the E-DPCCH or using a special CQI value in the HS-DPCCH.
  • Step 603 After receiving the release indication of the UE, the Node B releases the original HS-RACH resource of the UE, and returns a response to the UE.
  • Step 604 After the UE sends the release indication, if the response returned by the Node B is received within a predetermined time, the UE directly releases the resource. If the network side response is not received, the UE releases the resource.
  • the UE may also directly release the resource after sending the release indication, without waiting for the response returned by the Node B.
  • the UE may actively send a resource release indication to the Node B, and implement resource release after receiving the response returned by the Node B.
  • the embodiment of the present invention provides a communication device and a network system, and the communication device may be a terminal or a network side device.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • the communication device includes:
  • the information acquiring unit 71 is configured to acquire information related to resource release.
  • the resource release unit 72 is configured to determine, according to the information acquired by the information acquiring unit 71, the allocated high-speed random access channel resource, and release the allocated high-speed random access channel resource at the local end.
  • the resource release unit 72 may include a decision unit, a processing unit.
  • the communication device may be a terminal, where the resource release unit includes a decision unit and a processing unit.
  • the resource release unit includes a decision unit and a processing unit.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal includes: an information acquisition unit 701, a decision unit 702, and a processing unit 703.
  • the information obtaining unit 701 is configured to acquire trigger information detected by itself.
  • the trigger information obtained by the information acquiring unit 701 is specifically: information indicating that the terminal has no data transmission, the data volume sent by the terminal is lower than the threshold value, or the terminal replaces the cell.
  • the determining unit 702 is configured to determine, according to the trigger information acquired by the information acquiring unit 701, the released HS-RACH resource.
  • the processing unit 703 is configured to release the allocated HS-RACH resource at the local end after the determining unit 702 determines to release the allocated HS-RACH resource.
  • the terminal further includes: a sending unit 704, configured to send, after the determining unit 702 determines to release the allocated HS-RACH resource, a resource release indication to the network side.
  • FIG. 9 is a schematic structural diagram of a terminal 2 according to an embodiment of the present invention.
  • the terminal includes: a receiving unit, which may also be referred to as an information acquiring unit 801 shown in FIG. 9, and a processing unit, which may also be referred to as a resource releasing unit 802 shown in FIG.
  • the information obtaining unit 801 is configured to obtain a resource release indication, where the resource release indication is determined by the network side to release the allocated HS-RACH resource according to the trigger information.
  • the resource release unit 802 is configured to determine to release the allocated high-speed random access channel resource according to the resource release indication acquired by the information acquiring unit 801, and release the allocated HS-RACH resource at the local end.
  • the terminal further includes: an information reporting unit 803, configured to send the trigger information detected by itself to the network side before the information obtaining unit 801 obtains the resource release indication.
  • the trigger information sent by the information reporting unit 803 to the network side is specifically: indicating that the terminal has no data transmission, the terminal sends data volume lower than the threshold value, or the terminal replaces the cell information.
  • the communication device may be a network side device, wherein the resource release unit includes a decision unit and a processing unit.
  • the resource release unit includes a decision unit and a processing unit.
  • FIG. 10 it is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • the network side device includes: an information acquiring unit 901, a decision unit 902, and a processing unit 903.
  • the information obtaining unit 901 is configured to acquire trigger information.
  • the obtaining information of the triggering information by the information acquiring unit 901 may be: acquiring trigger information sent by the terminal, or acquiring trigger information obtained after detecting the terminal.
  • the trigger information acquired by the information acquiring unit 901 may be: information that is sent by the terminal to indicate that the terminal has no data to send, the amount of data sent by the terminal is lower than the threshold, or the terminal replaces the cell; or: the indication detected by the terminal The terminal has no data transmission, the terminal sends data less than the threshold or the terminal replaces the cell information; or: the radio network controller RNC sends a change according to the amount of data sent by the terminal, the cell load of the terminal, or the service quality requirement of the terminal.
  • the information of the terminal status or: the information that the error rate of the data sent by the terminal is higher than a specified value within the set time.
  • the determining unit 902 is configured to determine release according to the trigger information acquired by the information acquiring unit 901 Assigned HS-RACH resources.
  • the processing unit 903 is configured to release the allocated HS-RACH resource at the local end after the determining unit 902 determines to release the allocated HS-RACH resource.
  • the network side device may further include a sending unit 904, configured to send a resource release indication to the terminal after the determining unit 902 determines to release the allocated HS-RACH resource.
  • a sending unit 904 configured to send a resource release indication to the terminal after the determining unit 902 determines to release the allocated HS-RACH resource.
  • FIG. 11 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • the network system includes a device 1 and a device 2, the device 1 is a terminal, and the device 2 is a network side device; or the device 1 is a network side device, and the device 2 is a terminal.
  • the terminal is marked as 1001 and the network side device is marked as 1002.
  • the network system includes two implementations.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the terminal 1001 is configured to obtain the trigger information, and determine to release the allocated HS-RACH resource according to the obtained trigger information, and release the allocated HS-RACH resource at the local end after the releasing the allocated HS-RACH resource. .
  • the network side device 1002 is configured to release the allocated HS-RACH resource at the local end after the terminal 1001 determines that the allocated HS-RACH resource is released.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the network side device 1002 is configured to acquire the trigger information, and determine to release the allocated HS-RACH resource according to the obtained trigger information, and after releasing the allocated HS-RACH resource, release the allocated HS at the local end. RACH resources.
  • the terminal 1001 is configured to: after the network side device 1002 determines to release the allocated HS-RACH resource, release the allocated HS-RACH resource at the local end.
  • the prior art proposes a scheme for implementing uplink transmission by using HS-RACH instead of RACH, but the scheme does not provide a release method of HS-RACH resources, then the used HS-RACH resources may always be occupied.
  • the solution of the prior art is not complete, and the solution of the prior art is not complete.
  • the technical solution provided by the embodiment of the present invention is to obtain the trigger information, and determine the high-speed random release of the release according to the obtained trigger information.
  • Accessing channel resources releasing the allocated high-speed random access channel resources after determining to release the allocated high-speed random access channel resources, so that the used high-speed random access channel HS-RACH resources can be used according to specific conditions
  • the release process completes the process of implementing the uplink transmission scheme by using HS-RACH instead of RACH, so that the scheme can be practically applied. Further, the embodiment of the present invention notifies the release of resources through explicit signaling, so that the resource usage status of the terminal and the network side are consistent, the release process is simple, and the effective utilization of resources is also improved.

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Description

资源释放方法、 通信设备及网络系统
本申请要求于 2007 年 12 月 29 日提交中国专利局、 申请号为 200710307869.0、发明名称为 "资源释放方法、终端、 网络侧设备及网络系统" 的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体涉及一种资源释放方法、通信设备及网络 系统。
背景技术
目前的通信网络中，为了减少上行信令传输时延以及不连续的数据包传输 时延， 对现有随机接入技术进行改进， 提出使用增强的 HS-RACH ( high speed Random Access Channel, 高速随机接入信道)代替 RACH ( Random Access Channel, 随机接入信道） 实现上行传输的方案。
现有技术所提出的方案中， 增强的随机接入过程主要包括： 当终端 UE ( user equipment )通过 AICH ( Acquisition Indicator Channel, 获取指示信道) 收到应答后， Node B (节点 B )通过下行信道发送上行资源分配消息给接入 的 UE, 通知 UE可以使用的 HS-RACH资源。 所述携带上行资源分配消息的 下行信道可以是 AICH、 HS-PDSCH ( High Speed Physical Downlink Shared Channel, 高速物理下行共享信道）。 获得资源分配的 UE使用该上行资源发送 UE标识给 Node B， Node B通过下行信道携带 UE标识对确定的 UE进行应答。 在预定时间内收到应答的 UE获得所述上行资源， 可继续使用， 没有收到应答 的 UE停止使用所述上行资源。 所述携带 UE标识的下行信道可以是 E-AGCH ( E-DCH Absolute Grant Channel, 绝对授权信道）、 HS-PDSCH。
在对现有技术的研究和实践过程中 , 发明人发现现有技术存在以下问题： 现有技术中已经提出使用 HS-RACH代替 RACH实现上行传输的方案， 但该方案还没有提供 HS-RACH的资源的释放方法。
发明内容
本发明实施例要解决的技术问题是提供一种资源释放方法、通信设备及网 络系统， 以解决 HS-RACH的资源释放问题。
为解决上述技术问题， 本发明所提供的实施例是通过以下技术方案实现 的：
本发明实施例提供一种资源释放方法， 包括：
获取触发信息；
根据所述获取的触发信息确定释放分配的高速随机接入信道资源； 在所述确定释放分配的高速随机接入信道资源后 ,释放所述分配的高速随 机接入信道资源。
本发明实施例提供一种通信设备， 包括：
信息获取单元， 用于获取与资源释放相关的信息；
资源释放单元，用于根据所述信息获取单元获取的信息确定释放分配的高 速随机接入信道资源， 在本端释放所述分配的高速随机接入信道资源
本发明实施例提供一种网络系统， 包括：
网络侧设备， 用于获取触发信息，根据所述获取的触发信息确定释放分配 的高速随机接入信道资源 , 以及在确定释放分配的高速随机接入信道资源后 , 在本端释放所述分配的高速随机接入信道资源。
上述技术方案可以看出 ,现有技术虽然提出了使用 HS-RACH代替 RACH 实现上行传输的方案， 但该方案还没有提供 HS-RACH资源的释放方法， 那么 使用的 HS-RACH资源有可能一直被占用而无法释放， 因此现有技术提出的方 案流程并不完整，目前还无法被实际应用 ,而本发明实施例提供的技术方案是： 通过获取触发信息；根据所述获取的触发信息确定释放分配的高速随机接入信 道资源； 在所述确定释放分配的高速随机接入信道资源后，释放所述分配的高 速随机接入信道资源 ,从而使得所使用的高速随机接入信道 HS-RACH资源可 以根据具体情况进行释放， 完善了使用 HS-RACH代替 RACH实现上行传输 方案的流程， 使该方案更适合实际应用。
附图说明
图 1是本发明实施例一资源释放方法流程图；
图 2是本发明实施例二（a ) 资源释放方法流程图；
图 3是本发明实施例二（b ) 资源释放方法流程图；
图 4是本发明实施例三资源释放方法流程图；
图 5是本发明实施例四资源释放方法流程图； 图 6是本发明实施例五资源释放方法流程图；
图 7是本发明实施例通信设备结构示意图；
图 8是本发明实施例终端一结构示意图；
图 9是本发明实施例终端二结构示意图；
图 10是本发明实施例网络侧设备结构示意图；
图 11是本发明实施例网络系统结构示意图。
具体实施方式
本发明实施例提供了一种资源释放方法，用于解决 HS-RACH的资源释放 问题。
本发明实施例资源释放方法中， 根据触发信息释放 HS-RACH资源， 可以 由网络侧（如 Node B )或终端发送显式信令进行释放。 发送显式信令的方法： 可以通过物理层的信令来指示， 也可以通过层 2的控制 PDU ( Protocol Data Unit, 协议数据单元）来实现， 当然还可以通过其他方法实现。
触发 Node B做出释放决定的触发信息可以是：
由终端发送的表明终端没有数据发送、 或者表明终端发送数据量低于阔 值、 或者表明终端更换小区的信息； 由 Node B自身检测到的表明终端没有数 据发送、 或者表明终端发送数据量低于阔值、 或者表明终端更换小区的信息； 由无线网络控制器（RNC, Radio Network Controller )根据终端发送的数据量、 终端所在小区负载或者终端的业务质量要求确定并发送的、用于更改终端状态 的信息； Node B 自身检测到设定时间内所述终端发送的数据错误率高于一个 规定值的信息。 其中， 由终端发送的表明终端没有数据发送、 或者表明终端发 送数据量低于阔值、 或者表明终端更换小区的信息， 可以由终端 （UE )发送 的特殊的调度信息 SI ( Scheduling Information ), 或特殊的物理层控制信道指 示。
简单介绍一下调度信息 SI。 SI的内容包括： 緩存区中优先级最高的逻辑 信道 ID ( 4比特）、 UE的緩存占用情况、 UE的功率剩余空间 （5比特）。 UE 的緩存占用情况包括： 最高优先级的逻辑信道数据占用所有緩存的比例和 所 有緩存的状态。 可以根据 SI中的緩存占用情况确定是否需要释放资源。 1 ) UE保持在 CELL_FACH (前向接入信道状态）， 不更换小区， 没有上 行数据可以发送。
2 ) UE不更换小区但是要进行状态转换， 准备切换到 CELL— DCH (专用 信道状态）或者 CELL— PCH (寻呼信道状态）。
3 ) UE不进行状态转换但要进行小区更换， 继续发送上行数据。
以下结合附图对本发明实施例在上述三种情形下的资源释放方法进行伴 细介绍。
先介绍由网络侧 (如 Node B )发送显式信令进行释放的三个实施例。 实施例一：
请参阅图 1 , 是本发明实施例一资源释放方法流程图， 应用场景为 UE不 需要迁状态， 且小区不更换。
图 1中包括步骤：
步骤 101、 Node B接收 UE发送的调度信息 SI。
UE在使用 HS-RACH发送上行数据期间， 会周期性或者有新数据要求发 送的时候向 Node B发送 SI, SI中携带 UE的数据緩存容量；
调度信息 SI可以是单独传输， 也可以是携带在上行数据中进行传输。 步骤 102、 Node B根据接收的调度信息 SI中的信息确定要求 UE释放资 源。
Node B发现 SI中指示的数据緩存占用量低于某个阀值或者是为 0的时候, 决定要求 UE释放资源， 并自身开始也准备释放与该 UE相关的资源。
步骤 103、 Node B发送一个释放指示给 UE。
Node B在 SI中指示的数据緩存占用量为 0时， 向 UE发送释放指示， 要 求 UE释放资源。 释放指示的方式可以如下：
方式 a ):使用 MAC( Media Access Control,媒体访问控制）层的控制 PDU, 控制 PDU中的某种比特格式组合表示是资源释放指示； MAC层的控制 PDU 形式包括： 头部包含： 类型指示 （用于表明是否是控制 PDU )、 PDU的长度、 PDU 的 CRC ( Cyclic Redundancy Check, 循环冗余校验）值； 负荷部分包含： 控制的类型比特： 例如： 资源分配比特， 资源释放比特， 调度指示比特， 时间 调整比特， 资源更改比特， 质量测量比特等。 这些比特置 1表示下面包含相应 信息， 置 0表示不包含； 或者相反表示。 对于资源释放部分可以包含： 释放的 具体资源和释放原因。
方式 b ):使用物理层的控制信令来进行资源释放，比如使用 E-DPCCH 中 特殊的 E-TFC ( E-DCH Transport Format Combination, 传输格式合集）值， 或 者使用 HS-DPCCH中特殊的 CQI ( Channel Quality Indicator, 信道质量指示） 值等。
Node B在 SI中指示的数据緩存占用量不为 0但低于某个阀值时， 向 UE 发送释放指示，要求 UE释放资源。释放指示的方式也可以如上面所述的方式， 另外， 释放指示除了指示释放资源之外， 还可以指示 UE再次发送随机接入的 等待时间， 这样可以避免因为 Node B强制释放 UE的资源， 但是 UE却因为 有数据发送而频繁的发起随机接入而造成的上行干扰。这个等待时间可以是通 过 MAC层的控制 PDU携带， 也可以是通过物理层信令指示。 等待时间的值 的表示方法可以是某个时间单位的倍数， 如等待单位为 125ms， 等待的值实际 是 256ms时， 因此表示成 2即可。
步骤 104、 UE接收释放指示后， UE向 Node B发送需重传数据。
UE接收释放指示后， 先将在收到释放指示之前已经发送但是没有接收到 Node B返回的确认（ack ) 消息的数据包进行重传。 UE在收到释放指示后不 再发送新的数据， 只能重传那些未得到确认的 MAC-i/MAC-E数据包。
步骤 105、 Node B将本侧 UE的相关资源释放。
Node B在正确的收到需要重传的数据包之后， 正式释放 UE使用的物理 资源。
步骤 106、 UE进行资源释放。
UE在重传数据包并得到 Node B返回的 ack消息之后进行资源释放，释放 MAC层的緩存数据和物理层 HS-RACH资源相关的进程緩存、 参数表以及物 理资源。
另外， 有可能存在 UE对于 Node B反馈的 ack消息误判为 nack消息， 或 者将 nack消息误判为 ack消息， 而不断的向 Node B重传数据包， 此时可以在 Node B和 UE侧规定一个重传阔值例如是最大等待时间或者最大重传次数， 两侧设置的参数值相等，一旦到达最大等待时间或者到达最大重传次数， Node B和 UE各自马上进行资源释放。
需要说明的是， 触发 Node B决定进行资源释放的因素除实施例中描述的 UE发送的 SI中指示的数据緩存占用量外，还可以是： 特殊的物理层控制信道 指示， 指示网络没有数据可发送； Node B检测到 HS-RACH上行信号低于一 个阔值已经持续一段时间 ,或在一段时间内收到的来自 UE的数据包都是错的 , 或者 Node B检测 UE在激活周期内一段时间没有数据上传等。
还需要说明的是，本发明实施例并不一定需要进行数据重传后才进行资源 释放。
还需要说明的是： 实施例一中 Node B释放资源之前可以有这样的步骤：
UE发送一个 HS-RACH释放响应给 Node B, Node B接收释放响应后再进行 资源释放。
实施例一的技术方案，触发资源释放的触发信息可有多种， 并且可用不同 方式发送资源释放指示， 使得终端和网络侧的资源使用状况保持一致。 另夕卜， 还可以在重传机制中设置重传阔值， 防止不断的进行数据重发。
以下介绍本发明实施例二，应用场景为 UE不更换小区但是要进行状态转 换， 包括 RNC通知 Node B进行资源释放和 UE通知 Node B进行释放两种情 形， 分别对应图 2本发明实施例二（a ) 资源释放方法流程图、 图 3本发明实 施例二（b ) 资源释放方法流程图。
请参阅图 2本发明实施例二（a ) 资源释放方法流程图， 包括步骤： 步骤 201、 RNC接收测量参数。
RNC接收的测量参数例如是目前 UE的业务数据量、或者 UE的业务质量 要求等参数信息，这些测量参数由 UE通过 Node B发送给 RNC。 RNC还可进 一步结合自己测量到的 UE所在小区的负载。
步骤 202、 RNC ^据测量参数确定更改 UE状态。
RNC根据 UE的业务数据量超过阔值、 UE所在小区的负载过大或者 UE 的业务质量达不到要求等情况， 决定更改 UE的状态， 例如将 UE的状态迁到 CELL DCH态。 步骤 203、 RNC发起无线链路建立过程， 向 Node B发送无线链路建立请 求。
RNC发送的无线链路建立请求中携带了 UE ID和激活时间。 UE ID的作 用是让 Node B知道哪个 UE将会迁到 CELL— DCH状态， 同时也相当于通知 Node B当 UE迁移状态时需要释放资源。激活时间的作用是告诉 Node B什么 时候无线链路能够启用。
需要说明的是， 无线链路建立请求中也可以不携带激活时间。 不携带激活 时间时， Node B会立即启用新的物理信道， 但是因为 RNC确切知道 UE的激 活时间， 所以 RNC会在激活时间到达的时候开始接收上行的数据。
步骤 204、 Node B接收无线链路建立请求后， 建立无线链路。
Node B接收无线链路建立请求后， 知道要将 UE ID相关联的 HS-RACH 资源进行释放， 按请求建立无线链路， 向 RNC发送无线链路建立响应， 与 UE 进行物理层同步， 同步完毕后， 发送无线链路恢复消息给 RNC, 但不立即启 用， 而是在激活时间到达后再启用。
步骤 205、 RNC发送重配置消息给 UE。
RNC发送重配置消息给 UE, 并且指示 UE状态迁移到 CELL— DCH态。 重配置消息中携带的激活时间和无线链路建立过程中是一致的。 该实施例中， RNC发送重配置消息要求 UE进行参数重配并使用新配置， 使用新配置的同 时也意味着 UE需要释放原有资源。
步骤 206、 UE接收重配置消息后， 进行参数重配， 并向 RNC返回重配置 完成消息。
步骤 207、 UE向 Node B发送需重传的数据。
UE将在收到重配置消息之前已经发送但是没有接收到 Node B返回的确 认 ack消息的数据包进行重传。 UE在收到重配置消息后不能再发送新的数据， 只能重传那些未得到确认的 MAC-i/MAC-E数据包。
步骤 208、 UE和 Node B在到达激活时间后使用新配置， 各自释放资源。 当到达激活时间后， Node B释放 UE原有的 HS-RACH资源， 开始使用 新的配置与 UE进行交互， UE迁移状态后启用新的配置后，原有的 HS-RACH 资源就被释放了。 该实施例技术方案中， 可以通过重配置过程同时实现资源释放， 在 RNC 发送的无线链路建立请求中增加 UE ID和激活时间两个参数。 通过 UE ID可 以让 Node B知道哪个 UE将会迁到 CELL— DCH状态， 同时也相当于通知 Node B当 UE迁移状态时需要释放资源。激活时间可以让 Node B 和终端知道 什么时候启用新配置。
请参阅图 3本发明实施例二（b ) 资源释放方法流程图， 包括步骤： 步骤 301 - 302、 此两步骤与前面实施例步骤 201 - 202相同， 此处不再详 述。
步骤 303、 RNC发起无线链路建立过程， 向 Node B发送无线链路建立请 求。
与步骤 203不同的是， RNC发送的无线链路建立请求中携带了激活时间 而不用携带 UE ID。 激活时间的作用是告诉 Node B什么时候无线链路能够启 用。
需要说明的是， 无线链路建立请求中也可以不携带激活时间。 不携带激活 时间时， Node B会立即启用新的物理信道， 但是因为 RNC确切知道 UE的激 活时间， 所以 RNC会在激活时间到达的时候开始接收上行的数据。
步骤 304、 Node B接收无线链路建立请求后， 建立无线链路。
Node B接收无线链路建立请求后， 按请求建立无线链路， 向 RNC发送无 线链路建立响应， 与 UE进行物理层同步， 同步完毕后， 发送无线链路恢复消 息给 RNC, 但不立即启用。
步骤 305、 RNC发送重配置消息给 UE。
RNC发送重配置消息给 UE, 并且指示 UE状态迁移到 CELL— DCH态。 重配置消息中携带的激活时间和无线链路建立过程中是一致的。
步骤 306、 UE接收重配置消息后， 进行参数重配。
步骤 307、 UE发送释放请求给 Node B。
发送释放请求中可以携带新的 SI信息。 释放请求的发送时机可以是： 当 到达激活时间后， UE发送释放请求给 Node B, 也可以是： 参数重配完成后立 即发送。
步骤 308、 UE向 Node B发送需重传的数据。 UE将在收到重配置消息之前已经发送但是没有接收到 Node B返回的确 认 ack消息的数据包进行重传。 UE在收到重配置消息后不能再发送新的数据， 只能重传那些未得到确认的 MAC-i/MAC-E数据包。
步骤 309、 Node B向 UE发送释放指示。
Node B接收到 UE的释放请求， 并接收到 UE发送的重传的数据后 ,释放
UE原有的 HS-RACH资源， 同时发送释放指示给 UE。 同时 Node B新配置的 无线链路开始生效。
步骤 310、 UE接收到释放指示后， 释放资源， 并使用新的配置发送重配 置完成消息给网络， UE迁移状态完成。
需说明的是， 上述过程中也可以是 UE完成重配置的操作成功后， UE发 送释放请求给 Node B,携带释放原因是状态迁移到 CELL— DCH。 Node B收到 UE的释放请求之后，发送释放指示给 UE。 当到达激活时间后， Node B 和 UE 同时释放 UE原有的 HS-RACH资源， 且同时 Node B和 UE的新配置的无线 链路开始生效， UE使用新的配置发送重配完成消息给网络， UE迁移状态完 成。
上述是描述 UE迁移到 CELL— DCH的情况，如果是迁移到 CELL— PCH状 态， 由于转入 CELL— PCH状态的 UE必须在原有的配置上发送重配置完成消 息， 因此没有 RNC和 Node B间的链路建立过程， UE收到 RNC的重配置消 息后进行重配置， 然后在原有的配置上发送重配置完成消息， 收到 RNC返回 的确认 ACK消息之后， 发送释放请求给 Node B, 并发送重传数据到 Node B。 Node B接收到释放请求， 并接收到 UE发送的重传的数据后， 发送释放指示 给 UE, 由 UE释放所有的 HS-RACH资源后完成状态迁移。
需要说明的是，本发明实施例二并不一定需要进行数据重传后才进行资源 释放。
该实施例技术方案中， 可以通过重配置过程同时实现资源释放， 在 RNC 发送的无线链路建立请求中增加激活时间参数，激活时间可以让 Node B和终 端知道什么时候启用新配置。
再介绍实施例三： 请参阅图 4, 是本发明实施例三资源释放方法流程图， 应用场景为 UE不 进行状态转换但要进行小区更换。
图 4中包括步骤：
步骤 401、 UE在当前的小区使用 HS-RACH发送上行数据。
步骤 402、 UE测量发现满足小区重选条件之后， 决定进行小区重选。 这里所说小区重选条件，例如是同频小区信号质量比较差需要重新选择信 号质量好的小区等，假设 UE在原小区 1 ,发现小区 2的信号质量比小区 1好， 决定进行小区更新， 更新到小区 2。
步骤 403、 UE发送一个释放请求给原小区 1的 Node B。
UE发送的这个释放请求是个特殊的释放请求，比如说发送 SI中填写的最 高优先级的逻辑信道 ID是个特殊的保留值， 例如 1111， 或者说 SI中所有的 比特都为 0或者 1。可以从这个特殊值来告诉原小区的 Node B,释放的原因是 更换了小区。或者如实施例一中所述的 MAC层的控制 PDU来表示： UE因更 换小区需要释放 HS-RACH资源。
步骤 404、 UE向原小区 1的 Node B发送需重传的数据。
UE将在发送释放请求之前已经发送但是没有接收到 Node B返回的确认 ack消息的数据包进行重传。 UE在收到重配置消息后不能再发送新的数据， 只能重传那些未得到确认的 MAC-i/MAC-E数据包。
步骤 405、 原小区 1的 Node B向 UE发送释放指示。
原小区 1的 Node B接收到 UE的释放请求， 并接收到 UE发送的重传的 数据后， 释放 UE原有的 HS-RACH资源， 同时发送释放指示给 UE。
步骤 406、 UE接收释放指示后， 释放原小区的 HS-RACH资源， 再立即 使用目标小区 2的上行接入资源向目标小区 2发送小区更新消息。
需说明的是，本发明实施例三并不一定需要进行数据重传后才进行资源释 放， 也可以在发送完毕释放请求之后立即释放资源。
本实施例技术方案中，可以通过 UE确定需进行小区更换时，主动向 Node B发送资源释放请求， 在 Node B下发资源释放指示后实现资源释放。
再介绍由 UE发送显式信令进行释放的两个实施例。 请参阅图 5， 是本发明实施例四资源释放方法流程图， 应用场景为 UE不 进行状态转换但要进行小区更换。
图 5中包括步骤：
步骤 501、 UE在当前的小区使用 HS-RACH发送上行数据。
步骤 502、 UE测量发现满足小区重选条件之后， 决定进行小区重选。 这里所说小区重选条件，例如是同频小区信号质量比较差需要重新选择信 号质量好的小区等，假设 UE在原小区 1 ,发现小区 2的信号质量比小区 1好， 决定进行小区更新， 更新到小区 2。
步骤 503、 UE发送一个释放指示给原小区 1的 Node B。
UE发送的这个释放指示是个特殊的释放指示，比如说发送 SI中填写的最 高优先级的逻辑信道 ID是个特殊的保留值， 例如 1111， 或者说 SI中所有的 比特都为 0或者 1。可以从这个特殊值来告诉原小区的 Node B,释放的原因是 更换了小区。 或者释放指示通过 MAC层的控制 PDU实现。
步骤 504、 原小区 1的 Node B收到 UE的释放指示之后 , 释放 UE原有 的 HS-RACH资源， 将未正确收到的数据包丢弃， 不再等待 UE的重传。
步骤 505、 UE发送完释放指示之后， 立即释放原小区的 HS-RACH资源， 也不对没有得到正确应答的数据包进行重传，然后再立即使用目标小区 2的上 行接入资源向目标小区 2发送小区更新消息。
本实施例技术方案中，可以通过 UE确定需进行小区更换时，主动向 Node B发送资源释放指示实现资源释放。
请参阅图 6, 是本发明实施例五资源释放方法流程图。
图 6中包括步骤：
步骤 601、 UE在当前的小区使用 HS-RACH发送上行数据。
步骤 602、 UE向 Node B发送释放指示。
如果 UE在没有数据发送之后 , 或者是 RLC ( Radio Link Control, 无线链 路控制）层、 MAC层的緩冲区数据緩存量为 0保持一段时间后， UE认为自己 目前没有再继续使用 HS-RACH资源的需要， 也可主动释放资源。 通过发送 HS-RACH释放指示通知网络侧 Node B, 发送的形式有： 通过特殊的 SI, 或 MAC层的控制 PDU , 或物理层信令如使用 E-DPCCH 中特殊的 E-TFC值或 者使用 HS-DPCCH中特殊的 CQI值等。
步骤 603、 Node B收到 UE的释放指示之后， 释放 UE原有的 HS-RACH 资源， 向 UE返回应答。
步骤 604、 UE发送完释放指示后， 在预定时间内如果收到 Node B返回 的应答之后， 则直接释放资源， 如果超出预定时间， 没有收到网络侧应答， 则 自行释放资源。
需要说明的是， UE也可以发送释放指示后直接释放资源， 而不用等待 Node B返回的应答。
本实施例技术方案中， 可以通过 UE主动向 Node B发送资源释放指示， 并在接收 Node B返回的应答后实现资源释放。
上述内容伴细介绍了本发明实施例的资源释放方法，相应的，本发明实施 例提供一种通信设备和网络系统 , 该通信设备可以是终端或网络侧设备。
请参阅图 7， 是本发明实施例通信设备结构示意图。
如图 7所示， 通信设备包括：
信息获取单元 71， 用于获取与资源释放相关的信息；
资源释放单元 72， 用于根据所述信息获取单元 71获取的信息确定释放分 配的高速随机接入信道资源 , 在本端释放所述分配的高速随机接入信道资源。
资源释放单元 72可以包括决策单元、 处理单元。
通信设备可以是终端， 其中的资源释放单元包括决策单元、 处理单元。 请 参阅图 8, 是本发明实施例终端一结构示意图。
如图 8所示，终端包括：信息获取单元 701、决策单元 702、处理单元 703。 信息获取单元 701 , 用于获取自身检测到的触发信息。
所述信息获取单元 701获取的触发信息具体为： 表明终端没有数据发送、 终端发送数据量低于阔值或者终端更换小区的信息。
决策单元 702， 用于根据所述信息获取单元 701获取的触发信息确定释放 分配的 HS-RACH资源。
处理单元 703 , 用于在所述决策单元 702确定释放分配的 HS-RACH资源 后， 在本端释放所述分配的 HS-RACH资源。 终端进一步包括： 发送单元 704， 用于在所述决策单元 702确定释放分配 的 HS-RACH资源后， 向网络侧发送资源释放指示。
请参阅图 9, 是本发明实施例终端二结构示意图。
终端包括： 接收单元， 该接收单元也可以称为图 9 所示的信息获取单元 801 ,以及包括处理单元，该处理单元也可以称为图 9所示的资源释放单元 802。
信息获取单元 801， 用于获取资源释放指示， 所述资源释放指示由网络侧 根据触发信息确定释放分配的 HS-RACH资源后下发。
资源释放单元 802， 用于根据所述信息获取单元 801获取的资源释放指示 确定释放分配的高速随机接入信道资源，在本端释放所述分配的 HS-RACH资 源。
终端进一步包括： 信息上报单元 803， 用于在所述信息获取单元 801获取 资源释放指示之前，将自身检测到的触发信息发送给网络侧。所述信息上报单 元 803发送给网络侧的触发信息具体为： 表明终端没有数据发送、终端发送数 据量低于阔值或者终端更换小区的信息。
通信设备可以是网络侧设备，其中的资源释放单元包括决策单元、处理单 元。 请参阅图 10, 是本发明实施例网络侧设备结构示意图。
如图 10所述， 网络侧设备包括： 信息获取单元 901、 决策单元 902、 处理 单元 903。
信息获取单元 901 , 用于获取触发信息。
所述信息获取单元 901获取触发信息可以为： 获取终端发送的触发信息， 或者获取对终端进行检测后得到的触发信息。
具体来说， 所述信息获取单元 901获取的触发信息可以为： 由终端发送的 表明终端没有数据发送、 终端发送数据量低于阔值或者终端更换小区的信息； 或者为： 自身检测到的表明终端没有数据发送、终端发送数据量低于阔值或者 终端更换小区的信息； 或者为： 由无线网络控制器 RNC发送的根据终端发送 的数据量、终端所在小区负载或者终端的业务质量要求确定更改终端状态的信 息； 或者为： 自身检测到设定时间内所述终端发送的数据的错误率高于一个规 定值的信息。
决策单元 902， 用于根据所述信息获取单元 901获取的触发信息确定释放 分配的 HS-RACH资源。
处理单元 903 , 用于在所述决策单元 902确定释放分配的 HS-RACH资源 后， 在本端释放所述分配的 HS-RACH资源。
网络侧设备还可以进一步包括发送单元 904， 用于在所述决策单元 902确 定释放分配的 HS-RACH资源后， 向终端发送资源释放指示。
请参阅图 11 , 是本发明实施例网络系统结构示意图。
网络系统包 ϋ备一和设备二， 所述设备一为终端， 所述设备二为网络侧 设备； 或者所述设备一为网络侧设备， 所述设备二为终端。
如图 11所述， 将终端标记为 1001 , 将网络侧设备标记为 1002。
该网络系统包括两种实施方式。
实施方式一：
终端 1001 , 用于获取触发信息， 根据所述获取的触发信息确定释放分配 的 HS-RACH资源， 在所述确定释放分配的 HS-RACH资源后， 在本端释放所 述分配的 HS-RACH资源。 网络侧设备 1002, 用于获知所述终端 1001确定释 放分配的 HS-RACH资源后， 在本端释放所述分配的 HS-RACH资源。
实施方式二：
网络侧设备 1002, 用于获取触发信息， 根据所述获取的触发信息确定释 放分配的 HS-RACH资源， 在所述确定释放分配的 HS-RACH资源后， 在本端 释放所述分配的 HS-RACH资源。 终端 1001 , 用于获知所述网络侧设备 1002 确定释放分配的 HS-RACH资源后， 在本端释放所述分配的 HS-RACH资源。
综上所述， 现有技术虽然提出了使用 HS-RACH代替 RACH实现上行传 输的方案， 但该方案还没有提供 HS-RACH 资源的释放方法， 那么使用的 HS-RACH资源有可能一直被占用而无法释放， 因此现有技术提出的方案流程 并不完整， 目前还无法被实际应用， 而本发明实施例提供的技术方案是通过获 取触发信息； 根据所述获取的触发信息确定释放分配的高速随机接入信道资 源； 在所述确定释放分配的高速随机接入信道资源后，释放所述分配的高速随 机接入信道资源，从而使得所使用的高速随机接入信道 HS-RACH资源可以根 据具体情况进行释放， 完善了使用 HS-RACH代替 RACH实现上行传输方案 的流程， 使该方案能够被实际应用。 进一步的，本发明实施例是通过显式信令来通知释放资源，从而可以使得 终端和网络侧的资源使用状况保持一致，释放过程也很简单， 资源的有效利用 率也提高了。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤 是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可 读存储介质中， 例如只读存储器， 磁盘或光盘等。
以上对本发明实施例所提供的一种资源释放方法、通信设备及网络系统进 行了详细介绍， 对于本领域的一般技术人员， 依据本发明实施例的思想， 在具 体实施方式及应用范围上均会有改变之处， 综上所述，本说明书内容不应理解 为对本发明的限制。

Claims

权 利 要 求
1、 一种资源释放方法， 其特征在于， 包括：
获取触发信息；
根据所述获取的触发信息确定释放分配的高速随机接入信道资源； 在所述确定释放分配的高速随机接入信道资源后 ,释放所述分配的高速随 机接入信道资源。
2、 根据权利要求 1所述的资源释放方法， 其特征在于：
所述获取触发信息具体为： 网络侧获取触发信息；
所述根据获取的触发信息确定释放分配的高速随机接入信道资源具体为： 网络侧根据所述获取的触发信息确定释放分配的高速随机接入信道资源； 所述释放所述分配的高速随机接入信道资源具体为：网络侧向终端发送资 源释放指示 ,使得所述终端根据网络侧发送的所述资源释放指示在本端释放所 述分配的高速随机接入信道资源，且网络侧在本侧释放所述分配的高速随机接 入信道资源。
3、 根据权利要求 2所述的资源释放方法， 其特征在于：
所述网络侧获取触发信息具体为：
网络侧获取终端发送的触发信息 ,或者获取对终端进行检测后得到的触发 信息。
4、 根据权利要求 3所述的资源释放方法， 其特征在于：
所述网络侧获取对终端进行检测后得到的触发信息具体包括：
网络侧的节点 B获取自身对终端检测后得到的触发信息， 或者获取网络 侧的无线网络控制器对终端检测后确定的触发信息。
5、 根据权利要求 4所述的资源释放方法， 其特征在于：
所述网络侧的无线网络控制器对终端检测后确定的触发信息具体包括： 网络侧的无线网络控制器根据终端发送的数据量、终端所在小区负载或者 终端的业务质量要求确定更改终端状态的信息。
6、 根据权利要求 5所述的资源释放方法， 其特征在于：
当所述无线网络控制器确定更改终端状态时，该方法进一步包括： 无线网 络控制器向节点 B发送携带终端标识和激活时间的无线链路建立请求， 由节 点 B接收所述无线建立请求后建立无线链路；
无线网络控制器将激活时间发送给终端；
所述释放所述分配的高速随机接入信道资源具体为： 所述节点 B和终端 在所述激活时间到达时， 各自释放所述分配的高速随机接入信道资源。
7、 根据权利要求 4所述的资源释放方法， 其特征在于：
所述网络侧的节点 B获取自身对终端检测后得到的触发信息包括： 检测 到设定时间内所述终端发送的数据的错误率大于设定值的信息。
8、 根据权利要求 2所述的资源释放方法， 其特征在于：
所述网络侧在本侧释放所述分配的高速随机接入信道资源是在接收到终 端发送的重传数据后执行；
和 /或 , 所述使得终端在本端释放所述分配的高速随机接入信道资源是： 使得终端在向网络侧发送重传数据， 并接收到网络侧返回的确认消息后，再释 放所述分配的高速随机接入信道资源。
9、 根据权利要求 8所述的资源释放方法， 其特征在于：
所述网络侧在确定已到达设置的重传阔值后，再执行在本侧释放所述分配 的高速随机接入信道资源的步骤；
和 /或， 所述终端在确定已到达设置的重传阔值后， 再执行在本端释放所 述分配的高速随机接入信道资源的步骤。
10、 根据权利要求 1所述的资源释放方法， 其特征在于：
所述获取触发信息具体为： 终端获取自身检测到的触发信息；
所述根据获取的触发信息确定释放分配的高速随机接入信道资源具体为： 终端根据所述获取的自身检测到的触发信息确定释放分配的高速随机接入信 道资源；
所述释放所述分配的高速随机接入信道资源具体为：终端向网络侧发送资 源释放指示，使得所述网络侧根据终端发送的所述资源释放指示在本侧释放所 述分配的高速随机接入信道资源，且终端在本端释放所述分配的高速随机接入 信道资源。
11、 根据权利要求 2至 10任一项所述的资源释放方法， 其特征在于： 所述网络侧或终端接收到对方发送的资源释放指示后进一步包括：向对方 返回资源释放响应；
所述对方接收所述资源释放响应后再释放所述分配的高速随机接入信道 资源。
12、 根据权利要求 11所述的资源释放方法， 其特征在于：
所述发送的资源释放指示通过物理层信令进行指示，或者通过媒体访问控 制协议数据单元进行指示；
所述发送的资源释放响应通过媒体访问控制协议数据单元进行指示。
13、 根据权利要求 1至 3任一项所述的资源释放方法， 其特征在于： 所述触发信息为：表明终端没有数据发送、终端发送数据量低于阔值或者 终端更换小区的信息。
14、 一种通信设备， 其特征在于， 包括：
信息获取单元， 用于获取与资源释放相关的信息；
资源释放单元，用于根据所述信息获取单元获取的信息确定释放分配的高 速随机接入信道资源 , 在本端释放所述分配的高速随机接入信道资源。
15、 根据权利要求 14所述的通信设备， 其特征在于：
所述信息获取单元具体用于获取触发信息；
所述资源释放单元包括：
决策单元，用于根据所述信息获取单元获取的触发信息确定释放分配的高 速随机接入信道资源；
处理单元， 用于在所述决策单元确定释放分配的高速随机接入信道资源 后， 在本端释放所述分配的高速随机接入信道资源。
16、 根据权利要求 15所述的通信设备， 其特征在于， 进一步包括： 发送单元， 用于在所述决策单元确定释放分配的高速随机接入信道资源 后， 向外发送资源释放指示。
17、 根据权利要求 14至 16任一项所述的通信设备， 其特征在于： 所述信息获取单元具体用于获取： 表明终端没有数据发送、终端发送数据 量低于阔值或者终端更换小区的触发信息。
18、 根据权利要求 14所述的通信设备， 其特征在于：
所述信息获取单元具体用于获取网络侧根据触发信息确定释放分配的高 速随机接入信道资源后下发的资源释放指示；
所述资源释放单元具体用于根据所述信息获取单元接收的资源释放指示 确定释放分配的高速随机接入信道资源，在本端释放所述分配的高速随机接入 信道资源。
19、 根据权利要求 18所述的通信设备， 其特征在于， 进一步包括： 信息上报单元， 用于在所述信息获取单元获取资源释放指示之前，将本终 端自身检测到的触发信息发送给网络侧； 且所述触发信息具体为： 表明终端没 有数据发送、 终端发送数据量低于阔值或者终端更换小区的信息。
20、 根据权利要求 14至 16任一项所述的通信设备， 其特征在于： 所述信息获取单元具体用于获取由终端发送的或网络侧设备自身检测到 的表明终端没有数据发送、终端发送数据量低于阔值或者终端更换小区的触发 信息；
或者用于获取： 由无线网络控制器发送的根据终端发送的数据量、终端所 在小区负载或者终端的业务质量要求确定更改终端状态的触发信息；
或者用于获取：网络侧设备自身检测到设定时间内所述终端发送的数据的 错误率大于设定值的触发信息。
21、 一种网络系统， 其特征在于， 包括：
网络侧设备， 用于获取触发信息，根据所述获取的触发信息确定释放分配 的高速随机接入信道资源 , 以及在确定释放分配的高速随机接入信道资源后 , 在本端释放所述分配的高速随机接入信道资源。
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EP08870773.2A EP2224763B2 (en) 2007-12-29 2008-12-26 A resource release method, a communication equipment and a network system
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