CN102497674B - Resource releasing method, terminal, network side equipment and network system - Google Patents

Abstract

The embodiment of the present invention discloses a resource release method, including: acquiring trigger information; determining to release allocated high-speed random access channel HS-RACH resources according to the acquired trigger information; Afterwards, release the allocated HS-RACH resources on the network side and the terminal respectively. Correspondingly, the embodiment of the present invention also provides a network side device, including: an information acquisition unit, configured to acquire trigger information; a decision unit, configured to determine to release allocated HS-RACH resources according to the trigger information acquired by the information acquisition unit a processing unit, configured to release the allocated HS-RACH resources at the local end after the decision-making unit determines to release the allocated HS-RACH resources. The embodiment of the present invention also provides a terminal and a network system. The technical solutions provided by the embodiments of the present invention solve the problem of HS-RACH resource release.

Description

Resource release method, terminal, network side device and network system

technical field

The present invention relates to the field of communication technologies, and in particular to a resource release method, a terminal, a network side device and a network system.

Background technique

In the current communication network, in order to reduce the transmission delay of uplink signaling and discontinuous data packet transmission, the existing random access is improved, and the enhanced HS-RACH (high speed Random Access Channel, high speed random access) is proposed. channel) instead of RACH (Random Access Channel, random access channel) to achieve uplink transmission.

In the scheme proposed in the prior art, the enhanced random access process mainly includes: when the terminal UE receives a response through the AICH (Acquisition Indicator Channel, Acquisition Indicator Channel), the Node B (Node B) sends the uplink resource allocation through the downlink channel A message is sent to the accessing UE to inform the UE of the available HS-RACH resources. The downlink channel carrying the uplink resource allocation message may be AICH, HS-PDSCH (High Speed Physical Downlink Shared Channel, High Speed Physical Downlink Shared Channel). The UE that has obtained the resource allocation uses the uplink resource to send the UE identity to the Node B, and the Node B carries the UE identity through the downlink channel to respond to the determined UE. The UE that receives the response within the predetermined time obtains the uplink resource and can continue to use it, and the UE that does not receive the response stops using the uplink resource. The downlink channel carrying the UE identity may be E-AGCH (E-DCH Absolute Grant Channel; absolute grant channel), HS-PDSCH.

During the research and practice of the prior art, the inventor found the following problems in the prior art:

In the prior art, a scheme of using HS-RACH instead of RACH to realize uplink transmission has been proposed, but this scheme has not yet provided a method for releasing HS-RACH resources.

Contents of the invention

The technical problem to be solved by the embodiment of the present invention is to provide a resource release method, a terminal, a network side device and a network system, so as to solve the problem of HS-RACH resource release.

In order to solve the above technical problems, the embodiments provided by the present invention are achieved through the following technical solutions:

An embodiment of the present invention provides a resource release method, including: acquiring trigger information; determining to release allocated high-speed random access channel HS-RACH resources according to the acquired trigger information; after determining to release the allocated HS-RACH resources , releasing the allocated HS-RACH resources on the network side and the terminal respectively.

An embodiment of the present invention provides a terminal, including: an information acquisition unit for acquiring trigger information detected by itself; a decision-making unit for determining to release the allocated high-speed random access channel HS according to the trigger information acquired by the information acquisition unit - RACH resources; a processing unit, configured to release the allocated HS-RACH resources at the local end after the decision-making unit determines to release the allocated HS-RACH resources.

An embodiment of the present invention provides a terminal, including: a receiving unit, configured to receive a resource release instruction sent by the network side after determining to release the allocated HS-RACH resource according to the trigger information; a processing unit, configured to receive the instruction according to the received The resource release indicates to release the allocated HS-RACH resource at the local end.

An embodiment of the present invention provides a network side device, including: an information acquisition unit, configured to acquire trigger information; a decision-making unit, configured to determine to release allocated HS-RACH resources according to the trigger information acquired by the information acquisition unit; a processing unit, It is used for releasing the allocated HS-RACH resources at the local end after the decision-making unit determines to release the allocated HS-RACH resources.

An embodiment of the present invention provides a network system, including device one and device two: the device one is configured to acquire trigger information, determine to release the allocated HS-RACH resources according to the acquired trigger information, and determine to release the allocated HS-RACH resources After the HS-RACH resource is released, the allocated HS-RACH resource is released at the local end; the device 2 is configured to release the allocated HS-RACH resource at the local end after learning that the device 1 determines to release the allocated HS-RACH resource. - RACH resources; wherein, the first device is a terminal, and the second device is a network-side device; or the first device is a network-side device, and the second device is a terminal.

It can be seen from the above technical solution that although the prior art proposes a solution of using HS-RACH instead of RACH to realize uplink transmission, this solution has not yet provided a method for releasing HS-RACH resources, so the used HS-RACH resources may always be used Occupied and cannot be released, so the solution process proposed by the prior art is not complete and cannot be practically applied at present, but the technical solution provided by the embodiment of the present invention is: by acquiring trigger information; determining the release allocation according to the acquired trigger information HS-RACH resources; after determining to release the allocated HS-RACH resources, the network side and the terminal release the allocated HS-RACH resources respectively, so that the used HS-RACH resources can be released according to specific conditions , perfecting the process of using HS-RACH instead of RACH to realize the uplink transmission scheme, so that the scheme can be practically applied.

Description of drawings

FIG. 1 is a flowchart of a method for releasing resources according to Embodiment 1 of the present invention;

FIG. 2 is a flow chart of the resource release method in Embodiment 2 (a) of the present invention;

FIG. 3 is a flow chart of the method for releasing resources according to Embodiment 2 (b) of the present invention;

FIG. 4 is a flowchart of a method for releasing resources according to Embodiment 3 of the present invention;

FIG. 5 is a flowchart of a method for releasing resources according to Embodiment 4 of the present invention;

FIG. 6 is a flowchart of a method for releasing resources according to Embodiment 5 of the present invention;

FIG. 7 is a schematic structural diagram of a terminal 1 according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a terminal 2 according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a network system according to an embodiment of the present invention.

Detailed ways

The embodiment of the present invention provides a resource release method for solving the problem of HS-RACH resource release.

In the resource release method of the embodiment of the present invention, the HS-RACH resource is released according to the trigger information, and the network side (such as Node B) or the terminal can send explicit signaling to release. The method of sending explicit signaling: it can be indicated by the signaling of the physical layer, or can be realized by the control PDU of layer 2, and of course can also be realized by other methods.

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 that the amount of data sent by the terminal is lower than the threshold, or that the terminal changes the cell; the information detected by the Node B itself indicates that the terminal has no data to send, or that the amount of data sent by the terminal is lower than the threshold , or the information indicating that the terminal changes the cell; the information sent by the radio network controller (RNC) to determine the change of the terminal state according to the amount of data sent by the terminal, the load of the cell where the terminal is located, or the service quality requirements of the terminal; Node B itself detects the setting Information with a data error rate higher than a specified value sent by the terminal within the time period. Among them, the information sent by the terminal indicating that the terminal has no data to send, or that the amount of data sent by the terminal is lower than the threshold, or that the terminal changes cells, can be sent by the terminal (UE) Special scheduling information SI, or special physical layer control channel indication.

Briefly introduce the scheduling information SI. The content of the SI includes: the logical channel id with the highest priority in the buffer area (4 bits), the buffer occupancy of the UE, and the remaining power space of the UE (5 bits). The buffer occupancy status of the UE includes: the proportion of all buffers occupied by logical channel data with the highest priority and the status of all buffers. Whether to release resources can be determined according to the cache occupation in the SI.

The resource release method provided by the embodiment of the present invention can at least address the following three situations:

1) The UE remains in CELL_FACH (forward access channel state), does not change cells, and has no uplink data to send.

2) The UE does not change the cell but needs to perform a state transition, and prepares to switch to CELL_DCH (dedicated channel state) or CELL_PCH (paging channel state).

3) The UE does not perform state transition but needs to perform cell replacement, and continues to send uplink data.

The method for releasing resources in the above three situations in the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Firstly, three embodiments in which the network side (such as Node B) sends explicit signaling for release are introduced.

Embodiment one:

Please refer to FIG. 1 , which is a flow chart of a resource release method according to an embodiment of the present invention. The application scenario is that the UE does not need to change state and the cell does not change.

Steps included in Figure 1:

Step 101, Node B receives the scheduling information SI sent by UE;

When the UE uses HS-RACH to send uplink data, it will send SI to the Node B periodically or when there is a new data request to send, and the SI carries the data buffer capacity of the UE;

The scheduling information SI can be transmitted separately, or carried in uplink data for transmission.

Step 102, the Node B determines to require the UE to release resources according to the information in the received scheduling information SI;

When the Node B finds that the data buffer occupancy indicated in the SI is lower than a certain threshold or is 0, it decides to request the UE to release resources, and it also prepares to release the resources related to the UE itself.

Step 103, Node B sends a release indication to UE;

When the data buffer occupancy indicated in the SI is 0, the Node B sends a release instruction to the UE, requesting the UE to release resources. The way to release instructions can be as follows:

Method a): Use the control PDU of the MAC layer, and a certain bit format combination in the control PDU indicates that it is a resource release indication; the form of the control PDU of the MAC layer includes: the header contains: type indication (used to indicate whether it is a control PDU), The length of the PDU, the CRC check value of the PDU; the load part includes: the type of control bits: for example: resource allocation bits, resource release bits, scheduling indication bits, time adjustment bits, resource change bits, quality measurement bits, etc. These bits are set to 1 to indicate that the corresponding information is included below, and to 0 to indicate not to be included; or vice versa. The resource release part may include: the specific resource to be released and the reason for the release.

Method b): Use physical layer control signaling to release resources, such as using a special E-TFC (E-DCH Transport Format Combination) value in the E-DPCCH, or using a special CQI in the HS-DPCCH (Channel Quality Indicator, channel quality indicator) value, etc.

When the data buffer occupancy indicated in the SI is not 0 but lower than a certain threshold, the Node B sends a release instruction to the UE, requesting the UE to release resources. The manner of releasing the indication can also be as described above. In addition, besides indicating the release of resources, the release indication can also instruct the UE to send the waiting time for random access again, which can avoid the forced release of UE resources due to Node B, but The uplink interference is caused by the UE frequently initiating random access because there is data to send. The waiting time can be carried by the control PDU of the MAC layer, or can be indicated by the signaling of the physical layer. The value of the waiting time can be expressed as a multiple of a certain time unit. For example, when the waiting unit is 125ms and the waiting value is actually 256ms, it can be expressed as 2.

Step 104, after the UE receives the release indication, the UE sends the data to be retransmitted to the Node B;

After receiving the release indication, the UE first retransmits the data packets that have been sent but have not received the acknowledgment (ack) message returned by the Node B before receiving the release indication. After receiving the release instruction, the UE will not send new data, and can only retransmit those MAC-i/MAC-E data packets that have not been confirmed.

Step 105, Node B releases the relevant resources of the UE on this side;

After the Node B correctly receives the data packets that need to be retransmitted, it officially releases the physical resources used by the UE.

Step 106, UE performs resource release;

After the UE retransmits the data packet and gets the ack message returned by the Node B, the resource is released, and the cache data of the MAC layer and the process cache, parameter table and physical resources related to the HS-RACH resource of the physical layer are released.

In addition, it is possible that the UE may misjudge the ack message fed back by the Node B as a nack message, or misjudge the nack message as an ack message, and continuously retransmit data packets to the Node B. At this time, it can be specified on the Node B and UE sides A maximum waiting time or a maximum number of retransmissions, the parameter values set on both sides are equal, once the maximum waiting time or the maximum number of retransmissions is reached, Node B and UE will release resources immediately.

It should be noted that, in addition to the data buffer occupancy indicated in the SI sent by the UE described in the embodiment, the factor that triggers the Node B to decide to release resources may also be: a special physical layer control channel indication indicating that the network has no data available Send; Node B detects that the HS-RACH uplink signal has been lower than a threshold for a period of time, or the data packets received from the UE are all wrong within a period of time, or Node B detects that the UE is active for a period of time No data upload etc.

It should also be noted that the embodiments of the present invention do not necessarily need to perform data retransmission before releasing resources.

It should also be noted that in Embodiment 1, before the Node B releases resources, there may be such a step: the UE sends an HS-RACH release response to the Node B, and the Node B releases the resources after receiving the release response.

In the technical solution of Embodiment 1, there may be multiple types of trigger information to trigger resource release, and resource release instructions may be sent in different ways, so that the resource usage status of the terminal and the network side are consistent. In addition, the retransmission threshold can also be set in the retransmission mechanism to prevent continuous data retransmission.

The second embodiment of the present invention is introduced below. The application scenario is that the UE does not change the cell but needs to perform a state transition, including two situations where the RNC notifies the Node B to release resources and the UE notifies the Node B to release resources, respectively corresponding to the second embodiment of the present invention in FIG. 2 ( a) Flowchart of the resource release method, FIG. 3 Embodiment 2 (b) Flowchart of the resource release method of the present invention.

Please refer to Fig. 2 (a) flow chart of resource release method in Embodiment 2 of the present invention, including steps:

Step 201, RNC receives measurement parameters;

The measurement parameters received by the RNC are, for example, the current UE's service data volume, or the UE's service quality requirements and other parameter information, and these measurement parameters are sent by the UE to the RNC through the Node B. The RNC may further combine the load of the cell where the UE is located measured by the RNC.

Step 202, the RNC determines to change the UE state according to the measurement parameters;

The RNC decides to change the state of the UE, such as moving the state of the UE to the CELL_DCH state, according to the situation that the amount of 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, RNC initiates a radio link establishment process, sends a radio link establishment request to Node B;

The radio link establishment request sent by RNC carries UE id and activation time. The role of UE id is to let Node B know which UE will move to the CELL_DCH state, and it is also equivalent to notifying Node B that resources need to be released when the UE moves state. The role of the activation time is to tell the Node B when the radio link can be enabled.

It should be noted that the wireless link establishment request may not carry the activation time. When the activation time is not carried, the Node B will immediately enable a new physical channel, but because the RNC knows exactly the activation time of the UE, the RNC will start receiving uplink data when the activation time arrives.

Step 204, Node B establishes a wireless link after receiving the wireless link establishment request;

After Node B receives the wireless link establishment request, it knows to release the HS-RACH resource associated with the UE id, establishes the wireless link according to the request, sends a wireless link establishment response to the RNC, and performs physical layer synchronization with the UE, and the synchronization is completed After that, send a radio link recovery message to the RNC, but do not enable it immediately, but enable it after the activation time arrives.

Step 205, RNC sends a reconfiguration message to UE;

The RNC sends a reconfiguration message to the UE, and instructs the UE to transition to the CELL_DCH state. The activation time carried in the reconfiguration message is consistent with that in the wireless link establishment process. In this embodiment, the RNC sends a reconfiguration message to request the UE to perform parameter reconfiguration and use a new configuration. Using the new configuration also means that the UE needs to release the original resources.

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 retransmits the data packets that have been sent before receiving the reconfiguration message but have not received the acknowledgment message returned by the Node B. After receiving the reconfiguration message, the UE can no longer send new data, and can only retransmit those unacknowledged MAC-i/MAC-E data packets.

Step 208, UE and Node B use the new configuration after reaching the activation time, and release resources respectively.

When the activation time is reached, the Node B releases the original HS-RACH resources of the UE and starts to use the new configuration to interact with the UE. After the UE migrates to the state and enables the new configuration, the original HS-RACH resources are released.

In the technical solution of this embodiment, the resource release can be realized simultaneously through the reconfiguration process, and two parameters of UE id and activation time are added in the radio link establishment request sent by the RNC. Through the UE id, the Node B can know which UE will move to the CELL_DCH state, and it is also equivalent to notifying the NodeB that resources need to be released when the UE moves to the state. The activation time lets the Node B and the terminal know when to enable the new configuration.

Please refer to Figure 3, the flow chart of the resource release method in Embodiment 2 (b) of the present invention, including steps:

Steps 301-302 and these two steps are the same as steps 201-202 in the previous embodiment, and will not be described in detail here.

Step 303, RNC initiates the radio link establishment process, sends the radio link establishment request to Node B;

Different from step 203, the radio link establishment request sent by the RNC carries the activation time instead of the UE id. The role of the activation time is to tell the Node B when the radio link can be enabled.

It should be noted that the wireless link establishment request may not carry the activation time. When the activation time is not carried, the Node B will immediately enable a new physical channel, but because the RNC knows exactly the activation time of the UE, the RNC will start receiving uplink data when the activation time arrives.

Step 304, Node B establishes a wireless link after receiving the wireless link establishment request;

After receiving the wireless link establishment request, the Node B establishes the wireless link according to the request, sends a wireless link establishment response to the RNC, and performs physical layer synchronization with the UE. After the synchronization is completed, it sends a wireless link recovery message to the RNC, but does not enable it immediately .

Step 305, RNC sends a reconfiguration message to UE;

The RNC sends a reconfiguration message to the UE, and instructs the UE to transition to the CELL_DCH state. The activation time carried in the reconfiguration message is consistent with that in the wireless link establishment process.

Step 306, after receiving the reconfiguration message, the UE performs parameter reconfiguration;

Step 307, UE sends a release request to Node B;

New SI information may be carried in the sending release request. The sending timing of the release request can be: when the activation time is reached, the UE sends the release request to the Node B, or it can be sent immediately after the parameter reconfiguration is completed.

Step 308, the UE sends the data to be retransmitted to the Node B;

The UE retransmits the data packets that have been sent before receiving the reconfiguration message but have not received the acknowledgment message returned by the Node B. After receiving the reconfiguration message, the UE can no longer send new data, and can only retransmit those unacknowledged MAC-i/MAC-E data packets.

Step 309, Node B sends a release indication to UE;

After receiving the release request from the UE and the retransmission data sent by the UE, the Node B releases the original HS-RACH resources of the UE and sends a release instruction to the UE at the same time. At the same time, the newly configured wireless link of Node B takes effect.

Step 310 , after receiving the release instruction, the UE releases resources, and sends a reconfiguration complete message to the network using the new configuration, and the UE transition state is completed.

It should be noted that, in the above process, after the UE successfully completes the reconfiguration operation, the UE sends a release request to the Node B, carrying the reason for the release that the state transitions to CELL_DCH. After receiving the release request from the UE, the Node B sends a release indication to the UE. When the activation time is reached, the Node B and the UE release the original HS-RACH resources of the UE at the same time, and at the same time the newly configured wireless link between the Node B and the UE takes effect, and the UE uses the new configuration to send a reconfiguration complete message to the network. The UE transition state is complete.

The above describes the situation of UE migrating to CELL_DCH. If it is migrating to CELL_PCH state, since the UE that is transferred to CELL_PCH state must send a reconfiguration completion message on the original configuration, there is no link establishment process between RNC and Node B. UE Reconfigure after receiving the reconfiguration message from RNC, then send a reconfiguration complete message on the original configuration, and send a release request to Node B after receiving the confirmation ACK message returned by RNC, and send retransmission data to Node B. After receiving the release request and the retransmission data sent by the UE, the Node B sends a release indication to the UE, and the UE completes the state transition after releasing all HS-RACH resources.

It should be noted that, in Embodiment 2 of the present invention, resource release does not necessarily need to be performed after data retransmission.

In the technical solution of this embodiment, the resource release can be realized simultaneously through the reconfiguration process, and the activation time parameter is added in the wireless link establishment request sent by the RNC. The activation time can let the Node B and the terminal know when to enable the new configuration.

Introduce embodiment three again:

Please refer to FIG. 4 , which is a flowchart of a method for releasing resources according to Embodiment 3 of the present invention. The application scenario is that the UE does not perform state transition but needs to perform cell replacement.

Steps included in Figure 4:

Step 401, the UE uses the HS-RACH to send uplink data in the current cell;

Step 402: After the UE measures and finds that the cell reselection condition is satisfied, it decides to perform cell reselection;

The cell reselection conditions mentioned here, for example, the signal quality of the same frequency cell is relatively poor and the cell with good signal quality needs to be reselected, etc. Suppose the UE is in the original cell 1 and finds that the signal quality of cell 2 is better than cell 1, and decides to update the cell. 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. For example, 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. From this special value, you can tell the Node B of the original cell that the reason for the release is that the cell was changed. Or, as described in the first embodiment, the MAC layer control PDU indicates that the UE needs to release the HS-RACH resource due to cell change.

Step 404, the UE sends data to be retransmitted to the Node B of the original cell 1;

The UE retransmits the data packets that have been sent but have not received the acknowledgment message returned by the Node B before sending the release request. After receiving the reconfiguration message, the UE can no longer send new data, and can only retransmit those unacknowledged MAC-i/MAC-E data packets.

Step 405, the Node B of the original cell 1 sends a release instruction to the UE;

After receiving the release request from the UE and the retransmission data sent by the UE, the Node B of the original cell 1 releases the original HS-RACH resources of the UE and sends a release instruction to the UE at the same time.

Step 406 , after receiving the release instruction, the UE releases the HS-RACH resource of the original cell, and immediately uses the uplink access resource of the target cell 2 to send a cell update message to the target cell 2 .

It should be noted that, in Embodiment 3 of the present invention, the resource release does not necessarily need to be performed after data retransmission, and the resource may also be released immediately after the release request is sent.

In the technical solution of this embodiment, when the UE determines that a cell replacement is required, it can actively send a resource release request to the NodeB, and the resource release can be realized after the NodeB sends a resource release instruction.

Two embodiments in which the UE sends explicit signaling to perform the release are introduced again.

Please refer to FIG. 5 , which is a flowchart of a resource release method according to Embodiment 4 of the present invention. The application scenario is that the UE does not perform state transition but needs to perform cell replacement.

Steps included in Figure 5:

Step 501, UE sends uplink data using HS-RACH in the current cell;

Step 502: After the UE measures and finds that the cell reselection condition is satisfied, it decides to perform cell reselection;

The cell reselection conditions mentioned here, for example, the signal quality of the same frequency cell is relatively poor and the cell with good signal quality needs to be reselected, etc. Suppose the UE is in the original cell 1 and finds that the signal quality of cell 2 is better than cell 1, and decides to update the cell. 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. For example, 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. From this special value, you can tell the Node B of the original cell that the reason for the release is that the cell was changed. Or through the control PDU of the MAC layer.

Step 504, after the Node B of the original cell 1 receives the release instruction from the UE, it releases the original HS-RACH resources of the UE, discards the incorrectly received data packets in the HARQ entity, and no longer waits for the retransmission of the UE;

Step 505: After sending the release indication, the UE immediately releases the HS-RACH resources of the original cell, does not retransmit the data packets that have not received correct responses, and then immediately uses the uplink access resources of the target cell 2 to send the HS-RACH resource to the target cell 2. Community update news.

In the technical solution of this embodiment, when the UE determines that a cell change is required, the resource release can be realized by actively sending a resource release instruction to the NodeB.

Please refer to FIG. 6 , which is a flowchart of a method for releasing resources according to Embodiment 5 of the present invention.

Steps included in Figure 6:

Step 601, the UE uses the HS-RACH to send uplink data in the current cell;

Step 602, UE sends release instruction to Node B;

If the UE has no data to send, or after the RLC layer, MAC layer buffer data cache amount is 0 for a period of time, the UE thinks that it does not need to continue to use the HS-RACH resource, and can also actively release the resource. The NodeB on the network side is notified by sending an HS-RACH release instruction. The sending forms include: through special SI, or MAC layer control PDU, or physical layer signaling such as using a special E-TFC value in E-DPCCH or using HS- Special CQI values in DPCCH, etc.

Step 603: After receiving the release instruction from the UE, the Node B releases the original HS-RACH resources of the UE, and returns a response to the UE; the resource release response of the response can be indicated through the media access control protocol data unit.

Step 604: After the UE sends the release instruction, if it receives the response returned by the Node B within the predetermined time, it will release the resources directly; if it exceeds the predetermined time and does not receive the response from the network side, it will release the resources by itself.

It should be noted that the UE may also release the resources directly after sending the release instruction without waiting for the response returned by the Node B.

In the technical solution of this embodiment, when the UE determines that cell replacement is required, it can actively send a resource release instruction to the NodeB, and realize resource release after receiving the response returned by the NodeB.

The foregoing content introduces the resource release method of the embodiment of the present invention in detail, and accordingly, the embodiment of the present invention provides a terminal, a network side device, and a network system.

Please refer to FIG. 7 , which is a schematic diagram of a structure of a terminal according to an embodiment of the present invention.

As shown in FIG. 7 , the terminal includes: an information acquisition unit 701 , a decision-making unit 702 , and a processing unit 703 .

The information acquiring unit 701 is configured to acquire trigger information detected by itself.

The trigger information acquired by the information acquiring unit 701 is specifically: information indicating that the terminal does not send data, the amount of data sent by the terminal is lower than a threshold, or the terminal changes a cell.

The decision unit 702 is configured to determine to release the allocated HS-RACH resources according to the trigger information acquired by the information acquisition unit 701 .

The processing unit 703 is configured to release the allocated HS-RACH resources at the local end after the decision-making unit 702 determines to release the allocated HS-RACH resources.

The terminal further includes: a sending unit 704, configured to send a resource release instruction to the network side after the decision-making unit 702 determines to release the allocated HS-RACH resources.

Please refer to FIG. 8 , which is a schematic structural diagram of a terminal 2 according to an embodiment of the present invention.

As shown in FIG. 8 , the terminal includes: a receiving unit 801 and a processing unit 802 .

The receiving unit 801 is configured to receive a resource release indication, and the resource release indication is issued after the network side determines to release the allocated HS-RACH resources according to the trigger information.

The processing unit 802 is configured to release the allocated HS-RACH resource at the local end according to the resource release instruction received by the receiving unit 801 .

The terminal further includes: an information reporting unit 803, configured to send the trigger information detected by itself to the network side before the receiving unit 801 receives the resource release instruction. The trigger information sent by the information reporting unit 803 to the network side is specifically: information indicating that the terminal has no data to send, the amount of data sent by the terminal is lower than a threshold, or the terminal changes a cell.

Please refer to FIG. 9 , which is a schematic structural diagram of a network side device according to an embodiment of the present invention.

As shown in FIG. 9 , the network side device includes: an information acquisition unit 901 , a decision unit 902 , and a processing unit 903 .

The information acquiring unit 901 is configured to acquire trigger information.

The acquisition of trigger information by the information acquisition unit 901 may be: acquisition of trigger information sent by a terminal, or acquisition of trigger information obtained after detecting a terminal.

Specifically, the trigger information acquired by the information acquiring unit 901 may be: information sent by the terminal indicating that the terminal has no data to send, that the amount of data sent by the terminal is lower than the threshold, or that the terminal changes cells; or: information detected by itself indicating that the terminal No data is sent, the amount of data sent by the terminal is lower than the threshold, or the terminal changes the cell information; or: the information sent by the radio network controller RNC determines to change the terminal state according to the amount of data sent by the terminal, the load of the cell where the terminal is located, or the service quality requirements of the terminal information; or: the information that the error rate of the data sent by the terminal is higher than a specified value detected by itself within a set time.

The decision unit 902 is configured to determine to release the allocated HS-RACH resources according to the trigger information acquired by the information acquisition unit 901 .

The processing unit 903 is configured to release the allocated HS-RACH resources at the local end after the decision-making unit 902 determines to release the allocated HS-RACH resources.

The network side device may further include a sending unit 904, configured to send a resource release instruction to the terminal after the decision unit 902 determines to release the allocated HS-RACH resource.

Please refer to FIG. 10 , which 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.

As shown in FIG. 10 , the terminal is marked as 1001 , and the network side device is marked as 1002 .

The network system includes two implementations.

Implementation mode one:

The terminal 1001 is configured to acquire trigger information, determine to release the allocated HS-RACH resources according to the acquired trigger information, and release the allocated HS-RACH resources at the local end after the determination to release the allocated HS-RACH resources . The network side device 1002 is configured to release the allocated HS-RACH resource at the local end after learning that the terminal 1001 determines to release the allocated HS-RACH resource.

Implementation mode two:

The network side device 1002 is configured to acquire trigger information, determine to release the allocated HS-RACH resources according to the acquired trigger information, and release the allocated HS-RACH resources at the local end after determining to release the allocated HS-RACH resources. RACH resources. The terminal 1001 is configured to release the allocated HS-RACH resources at the local end after learning that the network side device 1002 determines to release the allocated HS-RACH resources.

To sum up, although the prior art proposes a scheme of using HS-RACH instead of RACH to realize uplink transmission, this scheme has not yet provided a method for releasing HS-RACH resources, so the used HS-RACH resources may be occupied all the time. cannot be released, so the solution process proposed by the prior art is not complete and cannot be practically applied at present, but the technical solution provided by the embodiment of the present invention is to obtain the trigger information; according to the acquired trigger information, determine the released HS- RACH resources; after the release of the allocated HS-RACH resources is determined, the network side and the terminal release the allocated HS-RACH resources respectively, so that the used HS-RACH resources can be released according to specific conditions, which improves the The process of implementing the uplink transmission scheme by using HS-RACH instead of RACH enables the scheme to be practically applied.

Furthermore, 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 can be consistent, the release process is also very simple, and the effective utilization rate of resources is also improved.

A resource release method, a terminal, a network side device and a network system provided by the embodiments of the present invention have been described above in detail. For those of ordinary skill in the art, based on the ideas of the embodiments of the present invention, specific implementation methods and application scopes There will be changes in all the above. In summary, the content of this specification should not be construed as limiting the present invention.

Claims (14)

1. a method for releasing resource, is characterized in that, comprising:

The terminal being in forward access channel status Cell_FACH state determines that the rlc layer of described terminal and the buffer data buffer memory of MAC layer were 0 maintenance a period of time;

Described terminal, after the buffer data buffer memory of the rlc layer and MAC layer of determining described terminal was 0 maintenance a period of time, is determined to discharge the high speed random access channel HS-RACH resource of distributing;

Described terminal, after determining the HS-RACH resource that release distributes, discharges the HS-RACH resource of distributing described in described terminal; And send resource release instruction, with the HS-RACH resource making described network side to discharge described distribution in present networks side to network side.

2. method for releasing resource according to claim 1, is characterized in that:

The resource release instruction of described transmission is indicated by physical layer signaling, or is indicated by media access control protocol data unit.

3. method for releasing resource according to claim 1, is characterized in that:

Described terminal discharges the HS-RACH resource of distributing described in described terminal and comprises:

Described terminal is receiving the HS-RACH resource of the described distribution of the rear release of resource release response that described network side returns,

Described resource release response returns to described terminal by described network side after the resource receiving the transmission of described terminal discharges instruction.

4. method for releasing resource according to claim 3, is characterized in that:

The resource release instruction of described transmission is indicated by physical layer signaling, or is indicated by media access control protocol data unit.

5. method for releasing resource according to claim 3, is characterized in that: the resource release response of described transmission is indicated by media access control protocol data unit.

6. a method for releasing resource, is characterized in that,

Network equipment receives the resource release instruction of the terminal transmission being in Cell_FACH state, and described resource release is designated as described terminal and sends after the buffer data buffer memory of the rlc layer and MAC layer of determining described terminal was 0 maintenance a period of time and determines to discharge the HS-RACH resource of distribution;

Described network equipment, according to the resource release instruction received, discharges the HS-RACH resource of distributing at network side.

7. method according to claim 6, is characterized in that, the method comprises further:

Described network equipment, after receiving described resource release instruction, sends resource release response to described terminal, with the HS-RACH resource making described terminal distribute in the described terminal of release after receiving described resource release response.

8. the method for releasing resource according to claim 6 or 7, is characterized in that:

The resource release instruction of described transmission is indicated by physical layer signaling, or is indicated by media access control protocol data unit.

9. method for releasing resource according to claim 7, is characterized in that: the resource release response of described transmission is indicated by media access control protocol data unit.

10. a terminal, described terminal is in Cell_FACH state, it is characterized in that, comprising:

Information acquisition unit, for obtaining the trigger message self detected, described trigger message shows that the rlc layer of described terminal and the buffer data buffer memory of MAC layer were 0 maintenance a period of time;

Decision package, the trigger message for obtaining according to described information acquisition unit is determined to discharge the high speed random access channel HS-RACH resource of distributing;

Processing unit, for determine the HS-RACH resource that release distributes at described decision package after, discharges the HS-RACH resource of described distribution at local terminal; And

Transmitting element, for determine the HS-RACH resource that release distributes at described decision package after, sends resource release instruction to network side.

11. 1 kinds of resource releasing devices, is characterized in that, comprising:

For receiving the unit of the resource release instruction of the terminal transmission being in Cell_FACH state, described resource release is designated as described terminal and sends after the buffer data buffer memory of the rlc layer and MAC layer of determining described terminal was 0 maintenance a period of time and determines to discharge the HS-RACH resource of distribution;

For according to the resource release instruction received, discharge the unit of the HS-RACH resource of distributing at network side.

12. resource releasing devices according to claim 11, is characterized in that, comprise further:

For after receiving described resource release instruction, send the unit of resource release response to described terminal, with the HS-RACH resource making described terminal distribute in the described terminal of release after receiving described resource release response.

13. resource releasing devices according to claim 11 or 12, is characterized in that:

The described described resource release instruction received is indicated by physical layer signaling, or is indicated by media access control protocol data unit.

14. resource releasing devices according to claim 12, is characterized in that:

The resource release response of described transmission is indicated by media access control protocol data unit.