CN102740467B - Uplink feedback method, terminal and the base station of High-Speed Dedicated Physical Control Channel - Google Patents

Abstract

The embodiment of the present invention provides uplink feedback method, terminal and the base station of a kind of HS-DPCCH.Wherein, the method includes: receive uplink feedback trigger message；Carrying out up transmission according to described uplink feedback trigger message, described up transmission includes that the uplink feedback resource according to receiving carries out uplink high-speed special physical control channel HS-DPCCH feedback.The embodiment of the present invention achieves the UE feedback for descending HS-DSCH data, and then base station can retransmit according to the data that this feedback decides whether to sending, avoid blind retransmission scheme of the prior art, the method increase the utilization rate of descending HS-DSCH resource, improve downlink throughput capacity.

Description

Uplink feedback method, terminal and base station of high-speed dedicated physical control channel

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an uplink feedback method, a terminal, and a base station for a high-speed dedicated physical control channel (HS-DPCCH).

Background

In the R7 version of 3GPP (3rd Generation Partnership Project) WCDMA (Wide-band Code Division Multiple Access), in order to improve the downlink data transmission rate of the UE in a CELL-Forward Access channel (CELL-FACH) state and a CELL-Paging channel (CELL-PCH) state, a new feature of enhanced FACH-CELL is introduced. By this feature, the UE can receive Downlink data from a high speed Downlink Shared Channel (HS-DSCH) in CELL-FACH and CELL-PCH states.

However, when the base station sends downlink data to the UE through the HS-DSCH channel, only blind retransmission, i.e. fixed repeated transmission, can be used at present. The blind retransmission mode reduces the utilization rate of downlink HS-DSCH resources and reduces downlink throughput.

Disclosure of Invention

The embodiment of the invention provides an HS-DPCCH uplink feedback method, a terminal and a base station, which can realize HS-DPCCH uplink feedback to avoid the problem caused by blind retransmission of downlink data.

The first aspect of the present invention provides an uplink feedback method for a high speed dedicated physical control channel HS-DPCCH, comprising:

receiving uplink feedback trigger information;

and performing uplink transmission according to the uplink feedback trigger information, wherein the uplink transmission comprises the feedback of an uplink high-speed dedicated physical control channel (HS-DPCCH) according to the received uplink feedback resource.

The second aspect of the present invention provides an uplink feedback method for HS-DPCCH, including:

issuing uplink feedback trigger information;

and receiving uplink transmission, wherein the uplink transmission comprises uplink HS-DPCCH feedback performed according to the downlink uplink feedback resource.

A third aspect of the present invention provides a UE, comprising:

a trigger receiving unit, configured to receive uplink feedback trigger information;

and the uplink sending unit is used for carrying out uplink sending according to the uplink feedback triggering information, and the uplink sending comprises carrying out uplink HS-DPCCH feedback according to the received uplink feedback resource.

A fourth aspect of the present invention provides a base station, comprising:

the trigger unit is used for issuing uplink feedback trigger information;

and the uplink receiving unit is used for receiving uplink transmission, and the uplink transmission comprises uplink HS-DPCCH feedback carried out according to the downlink uplink feedback resource.

A fifth aspect of the present invention provides an uplink feedback system for HS-DPCCH, comprising: a base station or UE, the base station in communication with the UE; wherein

The base station is used for issuing uplink feedback trigger information; receiving uplink transmission of UE;

the UE is used for receiving uplink feedback trigger information; and carrying out uplink transmission to the base station according to the uplink feedback trigger information, wherein the uplink transmission comprises uplink HS-DPCCH feedback according to the received uplink feedback resource.

The embodiment of the invention realizes the feedback of the UE for the downlink HS-DSCH data, and then the base station can decide whether to retransmit the transmitted data according to the feedback, thereby avoiding the blind retransmission mode in the prior art, improving the utilization rate of the downlink HS-DSCH resources and improving the downlink throughput.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a flowchart of an uplink feedback method for HS-DPCCH according to an embodiment of the present invention;

FIG. 2 is a flowchart of an uplink feedback method for HS-DPCCH according to another embodiment of the present invention;

FIG. 3 is a schematic diagram of the structure of a dummy packet in the embodiment shown in FIG. 2;

FIG. 4 is a flowchart of an uplink feedback method for HS-DPCCH according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of a UE according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another UE according to an embodiment of the present invention;

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

fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of an uplink feedback system of an HS-DPCCH according to an embodiment of the present invention.

Detailed Description

So that those skilled in the art can further understand the features and technical content of the present invention, reference is made to the following detailed description of the present invention and accompanying drawings, which are provided for reference and illustration only and are not intended to limit the present invention.

The technical solution of the present invention is described below with reference to the accompanying drawings and embodiments.

Referring to fig. 1, a flowchart of an uplink feedback method for HS-DPCCH according to an embodiment of the present invention is shown.

Step 101, receiving uplink feedback trigger information.

The base station sends uplink feedback trigger information to the UE, where the uplink feedback trigger information may include trigger information of an uplink random access indication, or may include trigger information of a specified uplink feedback resource. If the uplink feedback trigger information is trigger information including an uplink random access indication, the uplink feedback trigger information may specifically be an uplink random access indication sent by the base station to the UE through a physical layer, or may be an RNC indication message sent by an RNC (radio network Controller) to the UE. And after receiving the uplink feedback trigger information, the UE proceeds to the next step.

And 102, performing uplink transmission according to the uplink feedback trigger information, wherein the uplink transmission comprises uplink HS-DPCCH feedback according to the received uplink feedback resource.

In this step, the UE performs uplink transmission according to the specific content of the received uplink feedback trigger information, and if the received trigger information includes an uplink random access instruction, the UE performs uplink random access according to the instruction, receives an uplink feedback resource allocated by the base station in the access process, and then performs uplink HS-DPCCH feedback by using the resource. And if the received trigger information contains the specified uplink feedback resource, the UE performs uplink HS-DPCCH feedback according to the specified resource after uplink access. Please refer to the description of the following embodiments for specific procedures.

The uplink feedback resource may be a common E-DCH (Enhanced uplink DCH, Enhanced uplink dedicated channel) resource, or may be a dedicated uplink feedback resource, such as a scrambling code resource. The common E-DCH (common E-DCH) resource may be a resource configured by a system broadcast message, or a resource issued by the RNC through dedicated signaling. The dedicated uplink feedback resource at least comprises configuration information of the F-DPCH, configuration of the HS-DPCCH and the DPCCH.

The embodiment of the invention realizes the feedback of the UE for the downlink HS-DSCH data by receiving the uplink feedback trigger information and carrying out the uplink feedback, and then the base station can determine whether to retransmit the transmitted data according to the feedback, thereby avoiding the blind retransmission mode in the prior art, improving the utilization rate of downlink HS-DSCH resources and improving the downlink throughput.

Referring to fig. 2, a flowchart of an uplink feedback method for HS-DPCCH according to another embodiment of the present invention is shown.

Step 201, the UE receives uplink feedback trigger information, where the uplink feedback trigger information includes uplink random access indication information.

In this embodiment, the uplink feedback trigger information may be an uplink random access indication sent by the base station to the UE through the physical layer, or an RNC indication message sent by the RNC through a higher layer.

The base station sends uplink random access indication to the UE through a physical layer, specifically, the base station sends downlink HS-DSCH data to the UE; or the base station may send a downlink HS-SCCH instruction to the UE, where the instruction includes an instruction triggering uplink random access of the UE, and may also include an H-RNTI (HS-DSCH RNTI HS-DSCH, radio network temporary identifier) of the UE, and the base station may determine whether to send the downlink HS-SCCH (High Speed Shared Control Channel) instruction to the UE according to an instruction of the RNC in a FP (Frame Protocol).

For example, the HS-SCCH indication can adopt HS-SCCH type 1, and the definition of the HS-SCCH order is as follows:

For an HS-SCCH order，

xccs，1，xccs，2，...，xccs，7，xms，1 shall be set to‘11100000’

xtbs，1，xtbs，2，...，xtbs，6 shall be set to‘111101’

xhap，1，xhap，2，xhap，3，xrv，1，xrv，2，xrv，3 shall be set to‘000000’

xnd，1 is used for active/deactive.

of which xnd, 1 may be used as an indication of activation/deactivation. When xnd, 1 is set to 1 in the HS-SCCH indication received by the UE, the UE starts the random access procedure. When xnd, 1 is set to 0, the UE releases the occupied resources.

The RNC indicates the downlink Data volume information of the UE in the HS-DSCH Data Frame Type 2/3, and the Node B can judge whether the UE needs to initiate uplink random access according to the information and send HS-DPCCH feedback.

After a physical layer of the UE receives HS-DSCH data or receives an HS-SCCH instruction, and the instruction contains instruction information for triggering uplink random access, the physical layer of the UE informs an MAC layer to execute the next step and trigger random access; or the physical layer of the UE initiates a random access process according to the obtained ASC. The ASC is obtained by processing the ASC in the next step.

The RNC may specifically include the RNC including an indication message including uplink random access in a header of the MAC-ehs/MAC-c/MAC-d, and the UE executes the next step after receiving the RNC indication message to trigger random access.

Step 202, the UE triggers uplink random access.

In this embodiment, the UE initiates an uplink random access according to a specified random access parameter ASC (access service class), and a specific process of the random access is similar to that in the prior art and is not described herein again.

In this embodiment, the ASC is specified, specifically, the ASC may be directly specified by a MAC (Medium Access Control) layer of the UE, may be specified in advance in the UE, may be specified in advance by a convention between the UE and a network side, and may be obtained by the UE receiving a broadcast message/dedicated signaling from the network side, where the ASC obtaining paths are many and are not listed here. The ASC may be any value from 0 to 7.

After initiating uplink random access to the base station, the UE receives a response message returned by the base station, where the response message indicates common E-DCH resources available to the UE.

In step 203, after obtaining the available uplink common E-DCH resource, the UE sends uplink data on the uplink common E-DCH resource and executes an uplink resource collision detection process.

After the UE obtains the available uplink common E-DCH resource, it may directly utilize the uplink common E-DCH resource to perform uplink HS-DPCCH feedback to the base station, but because there may be uplink common E-DCH resource collision between UEs, the uplink common E-DCH resource may be unstable, in this embodiment, before utilizing the uplink common E-DCH resource to perform uplink HS-DPCCH feedback, the uplink resource collision detection is initiated to the base station by using the resource.

Specifically, after receiving the uplink common E-DCH resource, the UE first sends a DPCCH (Dedicated Physical Control Channel) to the base station, and starts a power Control process to select an appropriate power for subsequent uplink transmission. After DPCCH is transmitted for a period of time, the UE starts a collision detection timer, where the period of time may be:

the 10ms TTI is: 1+ "Additional E-DCH transmission back off") TTIs

The 2ms TTI is: 2+ "Additional E-DCH transmission back off") TTIs.

When the UE starts a collision detection timer, it sends uplink E-DPCH (enhanced dedicated Physical Channel) data to the base station for uplink resource collision detection, and if the UE does not have a high-level data packet to send at this time, the specific process of sending the uplink E-DPCH data may construct a virtual data packet, and then sends the virtual data packet to the base station in an uplink manner.

The virtual data packet may specifically adopt the following two ways:

the first method is as follows: and constructing a data packet with any size, wherein the data packet head carries the E-RNTI (E-DCHRNTI E-DCH, radio network temporary identifier) of the UE.

The second method comprises the following steps: special SI packets are constructed.

Since the UE does not send a high-level data packet, the role of sending the uplink E-DPCH data is only to verify whether there is an uplink resource conflict, so when constructing the virtual data packet, only the data packet of the physical layer is constructed, that is, the data packet is processed only in the physical layer, and the data packet does not need to be forwarded to the RNC for processing. For example: the size of the physical layer virtual data packet may be 18bits, after receiving the data packet subsequently, the base station may know that the data packet is a physical layer data packet according to the size of the data packet without performing subsequent high-level processing, and the special SI data packet may adopt an SI format of 18bits, as shown in fig. 3. The first 16bits of the data packet are the E-RNTI of the UE, and the SI of the last two bits can be any value, such as 00, 11, 01, 10, and the like.

In order that the base station can correctly process the virtual data packet constructed in any of the above manners, the UE may fill the E-DPCCH corresponding to the data packet with a special value, where the special value is for different E-TFCI (E-DCH Transport Format Combination Indicator) tables, for example:

2ms TTI E-DCH Transport Block Size Table 0：120；

2ms TTI E-DCH Transport Block Size Table 1：115，126，127；

2ms TTI E-DCH Transport Block Size Table 2：121；

2ms TTI E-DCH Transport Block Size Table 3：101，102，125，126，127；

10ms TTI E-DCH Transport Block Size Table 0: none;

10ms TTI E-DCH Transport Block Size Table 1：121-127。

in any form of virtual data packet, after receiving the data packet, the base station can judge whether the uplink common E-DCH resource corresponding to the E-RNTI conflicts with the uplink common E-DCH resources of the UE of other E-RNTIs according to the E-RNTI contained in the data packet. If no conflict exists, the base station feeds back a response message of the uplink resource conflict detection to the UE, wherein the response message can contain the E-RNTI of the UE; if there is a conflict, no response message is sent, or an indication message requesting the UE to release resources is further sent.

In step 204, the UE determines whether a response message of the uplink resource collision detection is received within a preset time.

The preset time is the time set by the conflict detection timer, and the UE always sends the virtual data packet during the effective period of the conflict detection timer until the timer is overtime or the UE receives response information returned by the base station. The UE judges whether response information of uplink resource conflict detection is received within the set time of the timer, if so, the next step is carried out; and if not, releasing the received uplink common E-DCH resource.

And step 205, performing uplink HS-DPCCH feedback according to the uplink common E-DCH resource.

After the UE receives the response information E-AGCH for the uplink resource conflict detection returned by the base station during the operation period of the conflict detection timer, the UE can start to send HS-DPCCH uplink feedback according to the timing relation of the channel. The HS-DPCCH uplink feedback carries ACK/NACK and Channel Quality Indication (CQI) through a HS-DSCH dedicated physical control channel (HS-DPCCH). After receiving the feedback of the uplink HS-DPCCH, the base station can avoid blind retransmission of downlink data according to the feedback.

During the time that the UE sends the uplink HS-DPCCH feedback, the UE may not send the E-DPCH data any more if there is no higher layer data. For the base station, there are two ways to monitor the E-DPCH channel:

the first method is as follows: a base station monitors an E-DPCH channel of UE all the time during the period that the UE occupies resources;

the second method comprises the following steps: the base station does not continuously monitor the E-DPCH. At this time, the period and the time for the base station to monitor the E-DPCH need to be configured.

In the above process, if the UE has higher layer data to transmit, the UE may transmit uplink data using the common E-DCH resource currently sending HS-DPCCH feedback.

After the data transmission process is completed, or when the uplink resource conflict exists, the mode for releasing the common e-DCH resource by the UE may be:

UE sends SI ═ 0 to release the resource implicitly; or the base station explicitly releases the resource through the E-AGCH.

In the embodiment of the invention, after receiving the uplink feedback trigger message, the uplink random access is firstly initiated, and then the uplink HS-DPCCH feedback is carried out according to the received common E-DCH resource, so that the feedback of the UE for the downlink HS-DSCH data is realized, and the base station can determine whether to retransmit the sent data according to the feedback, thereby avoiding the blind retransmission mode in the prior art, improving the utilization rate of the downlink HS-DSCH resource and improving the downlink throughput.

Referring to fig. 4, a flowchart of an uplink feedback method for HS-DPCCH according to another embodiment of the present invention is shown.

Step 401, the UE determines a standby uplink feedback resource.

In this embodiment, the UE may determine the spare or available uplink feedback resource in various ways, where the uplink feedback resource is used for the UE to perform uplink HS-DPCCH feedback.

Specifically, the UE receives an available uplink feedback resource broadcasted by the RNC, where the broadcast message includes the available uplink feedback resource of the UE; the uplink feedback resource can also be pre-configured or default configured before the network side and the UE; the RNC may also issue the available uplink feedback resources to the UE through RRC (Radio resource control) dedicated signaling.

The uplink feedback resource may be a scrambling resource, and the scrambling resource may include: uplink scrambling codes, channelization codes of F-dpch (fractional dpch), slot format, etc. that the UE can use. The uplink feedback resource may also be a common E-DCH resource configured by SIB/dedicated signaling.

Step 402, the UE receives a downlink HS-SCCH indication.

The HS-SCCH indication is issued by the base station to the UE, and includes a designated uplink feedback resource, where the designated uplink feedback resource is one of the available uplink feedback resources in the foregoing step.

The resource indication message HS-SCCH indication may be sent on an HS-SCCH channel, may be sent on an E-AGCH channel, or may be sent on an E-RGCH (Relative Grant channel) channel. The UE may also send uplink feedback for the indication message on the DPCCH channel for reliability of data transmission. When the base station uses the HS-SCCH channel to send the resource indication message, the indication message needs to include the identity H-RNTI of the UE and the number of the resource, which is used as an indication of the resource number (for example, discussing the resource at 32, in this case, 5 bits).

xhap，1，xhap，2，xhap，3，xrv，1，xrv，2，xrv，3 shall be set to xodt，1，xodt，2，xodt，3，xord，1，xord，2，xord，3

And step 403, after the uplink access, performing uplink HS-DPCCH feedback according to the specified uplink feedback resource.

After receiving the HS-SCCH instruction, the UE can automatically trigger uplink access, and specifically, after receiving the HS-SCCH instruction, the UE can initiate an uplink access process by adopting a signature corresponding to the resource, so that the Node B detection is facilitated; or after receiving the HS-SCCH instruction, the UE executes the transmission of the DPCCH by adopting the parameters corresponding to the resources, wherein the DPCCH adopts a power climbing mode until the NodeB detects the transmission of the UE; or after receiving the HS-SCCH instruction, the UE adopts the parameters corresponding to the resources to execute the transmission of the DPCCH and transmits the HS-DPCCH feedback after power control.

After the DPCCH is sent for a period of time, the UE carries out uplink HS-DPCCH feedback to the base station according to the specified uplink feedback resource. The period of time is the same as the period of time in step 203 of the previous embodiment, and is not described herein again. The uplink HS-DPCCH feedback procedure is similar to the previous embodiment and will not be described herein.

Because the uplink feedback resources, such as scrambling resources, are only used for the UE to send uplink HS-DPCCH feedback but cannot carry uplink transmission of high-level data, if the UE has high-level data to send uplink, it needs to re-initiate a random access process, and re-contend to obtain E-DCH resources to send the high-level data. The re-access procedure takes too long and requires UE resynchronization. It is thus possible to have the following enhancements:

1. when the UE needs to send the uplink data, the UE indicates the base station to send the uplink data through the DPCCH/HS-DPCCH channel.

And the base station indicates the resource number of the E-DCH which can be used by the UE on the HS-SCCH/F-DPCH channel according to the indication information of the UE.

And the UE sends uplink data according to the resource given by the base station.

In this process, the UE uplink data may still use the scrambling code specified by the base station, or may use the scrambling code corresponding to the resource specified by the base station.

2. When the UE needs to send the uplink data, the UE instructs the base station to send the uplink data through the DPCCH/HS-DPCCH channel.

The base station informs the RNC through the Fp control frame according to the indication information of the UE, and the RNC transmits the control information aiming at the UE to configure the information required by data transmission for the UE. (information of uplink and downlink channels, radio bearer information, etc.)

The data indication reporting mode of the HS-DPCCH can be as follows:

1) the CQI is taken as 0/31.

2) The UE avoids periodic transmission of CQI. Wherein, the ACK/NACK occupies 10bits, and the subsequent 20bits are DTX.

3. The RNC issues more common sets of E-DCH resources. Of which 32 sets are still used for random access by the UE and the other resources are used for UE initiated HS-DPCCH feedback, specified by the base station or RNC.

After the uplink data transmission of the UE is finished, the occupied resources may be released, and the release mode may adopt the following several methods:

1. if the UE sends the uplink data, the resource release mode is the same as that of the current common E-DCH: and according to the indication of the SIB, adopting an implicit or explicit resource release mode.

2. If the UE sends only HS-DPCCH feedback and there is no uplink data transmission all the time, the resource is deactivated by the HS-SCCH order. Or the UE starts the resource release timer after the conflict detection timer is overtime, and if the resource release timer is overtime and the UE has no downlink data reception all the time, the UE sends the scheduling information SI and releases the resources.

The embodiment of the invention determines the uplink feedback resource by receiving the uplink feedback trigger information, and then carries out uplink HS-DPCCH feedback according to the uplink feedback resource, thereby realizing the feedback of the UE for the downlink HS-DSCH data, and further the base station can decide whether to retransmit the sent data according to the feedback, avoiding the blind retransmission mode in the prior art, improving the utilization rate of the downlink HS-DSCH resource and improving the downlink throughput.

The above is a description of the method embodiment of the present invention, which can be applied to a flat architecture. The following describes an apparatus for carrying out the above method.

Fig. 5 is a schematic structural diagram of a UE according to an embodiment of the present invention.

The UE may include: trigger receiving section 501 and uplink transmitting section 502.

The trigger receiving unit 501 is configured to receive uplink feedback trigger information.

The uplink sending unit 502 is configured to perform uplink sending according to the uplink feedback trigger information, where the uplink sending includes performing uplink HS-DPCCH feedback according to the received uplink feedback resource.

First, the trigger receiving unit 501 of the UE receives an uplink feedback trigger message sent by the base station, where the uplink feedback trigger message may include trigger information of an uplink random access indication, or may include trigger information of a specified uplink feedback resource. Then, the uplink sending unit 502 performs uplink sending according to the specific content of the received uplink feedback trigger information, if the received trigger information includes an uplink random access instruction, the UE performs uplink random access according to the instruction, receives an uplink feedback resource allocated by the base station in the access process, and then performs uplink HS-DPCCH feedback by using the resource. And if the received trigger information contains the specified uplink feedback resource, the UE performs uplink HS-DPCCH feedback according to the specified resource after uplink access.

The embodiment of the invention realizes the feedback of the UE for the downlink HS-DSCH data through the units, and then the base station can determine whether to retransmit the transmitted data according to the feedback, thereby avoiding the problem caused by blind retransmission, improving the utilization rate of downlink HS-DSCH resources and improving the downlink throughput.

Fig. 6 is a schematic structural diagram of another UE according to an embodiment of the present invention.

The UE may include a trigger receiving unit 601 and an uplink transmitting unit 602.

The trigger receiving unit 601 is specifically configured to receive an uplink random access indication sent by a physical layer; or receiving an RNC indication message, where the RNC indication message includes indication information of uplink random access. The uplink random access indication sent by the physical layer and received by the trigger receiving unit 601 may specifically be downlink HS-DSCH data; or, indicating the downlink HS-SCCH, wherein the HS-SCCH indication comprises indication information for triggering uplink random access.

The uplink transmitting unit 602 may further include: an access sub-unit 6021, a detection sub-unit 6022, a response determination sub-unit 6023 and a feedback sub-unit 6024. The access subunit 6021 is configured to trigger uplink random access.

The detecting subunit 6022 is configured to initiate uplink resource collision detection according to the received uplink common E-DCH resource after receiving the uplink common E-DCH resource and before performing uplink HS-DPCCH feedback according to the uplink common E-DCH resource; the detecting subunit 6022 is specifically configured to construct a virtual data packet and perform uplink transmission, where the virtual data packet includes a radio network temporary identifier.

The response judgment subunit 6023 is configured to judge whether response information of uplink resource collision detection is received within a preset time, and if so, the feedback subunit 6024 performs uplink HS-DPCCH feedback according to the uplink common E-DCH resource; and if not, releasing the received uplink common E-DCH resource.

The feedback subunit 6024 is configured to perform uplink HS-DPCCH feedback according to the uplink common E-DCH resource after receiving the uplink common E-DCH resource.

In this embodiment, after the trigger receiving unit 601 receives the indication of the uplink random access, the access subunit 6021 of the uplink sending unit 602 executes the uplink random access, and after receiving the uplink common E-DCH resource, the feedback subunit 6024 may directly perform uplink HS-DPCCH feedback by using the common E-DCH resource, or the detection subunit 6022 may initiate uplink resource collision detection according to the common E-DCH resource, specifically, the detection subunit 6022 may construct a virtual data packet and perform uplink sending, if the corresponding judgment subunit of the UE receives a response message of uplink resource collision detection returned by the base station within a preset time of the collision detection timer, the feedback subunit 6024 performs uplink HS-DPCCH feedback according to the uplink common E-DCH resource, if the response message is not received until all the time or the response message is received after exceeding the preset time, the UE releases the received uplink common E-DCH resource.

The embodiment of the invention realizes the feedback of the UE for the downlink HS-DSCH data through the units, and then the base station can determine whether to retransmit the transmitted data according to the feedback, thereby avoiding the problem caused by blind retransmission, improving the utilization rate of downlink HS-DSCH resources and improving the downlink throughput.

Fig. 7 is a schematic structural diagram of another UE according to an embodiment of the present invention.

The UE may include a trigger receiving unit 701 and an uplink transmitting unit 702, and may further include a resource obtaining unit 703.

The resource obtaining unit 703 is configured to receive a broadcast of an available uplink feedback resource, and determine the available uplink feedback resource; or, pre-configuring available uplink feedback resources; or receiving an RRC dedicated signaling, wherein the RRC dedicated signaling comprises available uplink feedback resources.

A triggering receiving unit 701, configured to specifically receive a downlink HS-SCCH indication, where the HS-SCCH indication includes an assigned uplink feedback resource, and the assigned uplink feedback resource is one of the available uplink feedback resources.

The uplink sending unit 702 is specifically configured to perform uplink HS-DPCCH feedback according to the specified uplink feedback resource after uplink access.

In this embodiment, the resource obtaining unit 703 of the UE first determines the uplink feedback resource available to the UE, and then obtains the specified uplink feedback resource after receiving the downlink HS-SCCH instruction by the trigger receiving unit 701, and further performs uplink HS-DPCCH feedback by using the specified uplink feedback resource after performing uplink access by the uplink sending unit 702. The available uplink feedback resources may be scrambling resources and the like.

The embodiment of the invention realizes the feedback of the UE for the downlink HS-DSCH data through the units, and then the base station can determine whether to retransmit the transmitted data according to the feedback, thereby avoiding the problem caused by blind retransmission, improving the utilization rate of downlink HS-DSCH resources and improving the downlink throughput.

Fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.

The base station may include: a triggering unit 801 and an uplink receiving unit 802. The triggering unit 801 is configured to issue uplink feedback triggering information.

The uplink receiving unit 802 is configured to receive uplink transmission, where the uplink transmission includes uplink HS-DPCCH feedback performed according to the downlink uplink feedback resource.

First, a trigger unit 801 of a base station sends an uplink feedback trigger message to a UE, where the uplink feedback trigger message may include trigger information of an uplink random access indication or may include trigger information of a specified uplink feedback resource. Then, the uplink receiving unit 802 sends a common E-DCH resource to the UE after receiving the random uplink access of the UE, and then receives an uplink HS-DPCCH feedback initiated by the UE using the common E-DCH resource; or, the uplink receiving unit 802 directly receives the uplink access of the UE, and then receives the uplink HS-DPCCH feedback initiated by the UE using the specified uplink feedback resource included in the uplink feedback trigger message.

The embodiment of the invention realizes the feedback of the UE for the downlink HS-DSCH data through the units, and then the base station can determine whether to retransmit the transmitted data according to the feedback, thereby avoiding the problem caused by blind retransmission, improving the utilization rate of downlink HS-DSCH resources and improving the downlink throughput.

Fig. 9 is a schematic structural diagram of another base station according to an embodiment of the present invention.

The base station may include: a triggering unit 901 and an uplink receiving unit 902.

The triggering unit 901 is specifically configured to issue an uplink random access indication through a physical layer, and specifically configured to send downlink HS-DSCH data; or sending a downlink HS-SCCH instruction, wherein the HS-SCCH instruction comprises instruction information for triggering uplink random access.

The uplink receiving unit 902 may include: an access receiving subunit 9021, a response subunit 9022, a detection receiving subunit 9023, a collision judgment subunit 9024, and a feedback receiving subunit 9025.

An access receiving subunit 9021, configured to receive the uplink random access information.

A response subunit 9022, configured to send response information of the uplink random access information, where the response information includes the specified uplink common E-DCH resource.

A detection receiving subunit 9023, configured to receive uplink resource collision detection initiated according to the specified uplink common E-DCH resource, specifically, to receive a virtual data packet sent in an uplink, where the virtual data packet includes a radio network temporary identifier.

A conflict judgment subunit 9024, configured to judge whether the uplink common E-DCH resource conflicts, if not, return response information of uplink resource conflict detection within a preset time, and then receive, by the feedback receiving subunit 9025, uplink HS-DPCCH feedback sent according to the uplink common E-DCH resource, and if so, not return response information of uplink resource conflict detection.

A feedback receiving subunit 9025, configured to receive uplink HS-DPCCH feedback sent according to the uplink common E-DCH resource.

In this embodiment, after the triggering unit 901 of the base station issues an uplink random access instruction to the UE through the physical layer, the access receiving subunit 9021 of the uplink receiving unit 902 receives the uplink random access of the UE, and the response subunit 9022 sends response information of the uplink random access information to the UE, where the response information includes a specified uplink common E-DCH resource, and after receiving the resource, the UE may directly send an uplink HS-DPCCH feedback and receive the uplink HS-DPCCH feedback by the feedback receiving subunit 9025 of the base station, or the UE may initiate uplink resource collision detection according to the received uplink common E-DCH resource, receive the uplink HS-DPCCH by the detection receiving subunit 9023 of the base station, and determine whether the uplink common E-DCH resource collides by the collision determining subunit 9024, if there is no collision, return response information of the uplink resource collision detection within a preset time, and if there is a collision, not feed back the response information, after receiving the response information of the uplink resource collision detection returned by the base station, the UE initiates uplink HS-DPCCH feedback, and the feedback receiving subunit 9025 of the base station receives the feedback information, so that the base station can determine whether to retransmit the downlink data according to the feedback information.

The embodiment of the invention realizes the feedback of the UE for the downlink HS-DSCH data through the units, and then the base station can determine whether to retransmit the transmitted data according to the feedback, thereby avoiding the problem caused by blind retransmission, improving the utilization rate of downlink HS-DSCH resources and improving the downlink throughput.

In another embodiment of the present invention, the triggering unit of the base station may be further configured to send a downlink HS-SCCH indication, where the HS-SCCH indication includes an assigned uplink feedback resource, and the assigned uplink feedback resource is one of the predetermined available uplink feedback resources. The uplink receiving unit may be further configured to receive uplink HS-DPCCH feedback performed according to the specified uplink feedback resource after receiving the uplink access.

Fig. 10 is a schematic structural diagram of an uplink feedback system of HS-DPCCH according to an embodiment of the present invention.

The system may include a base station 1001 or a UE 1002, where the base station 1001 and the UE 1002 communicate.

The base station 1001 is configured to issue uplink feedback trigger information to the UE 1002; uplink transmission of the UE 1002 is received.

UE 1002, configured to receive uplink feedback trigger information sent by base station 1001; and performing uplink transmission to the base station 1001 according to the uplink feedback trigger information, wherein the uplink transmission comprises uplink HS-DPCCH feedback according to the received uplink feedback resource.

For the specific working process of the base station 1001 or the UE 1002, reference may be made to the content described in the foregoing embodiments of the base station or the UE, and details are not described here again.

The embodiment of the invention realizes the feedback of the UE for the downlink HS-DSCH data, and the base station can determine whether to retransmit the transmitted data according to the feedback, thereby avoiding the problem caused by blind retransmission, improving the utilization rate of the downlink HS-DSCH resources and improving the downlink throughput.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (31)

1. An uplink feedback method for a high speed dedicated physical control channel (HS-DPCCH) is characterized by comprising the following steps:

receiving uplink feedback trigger information;

triggering uplink random access according to the uplink feedback trigger information, and performing uplink transmission, wherein the uplink transmission comprises the feedback of an uplink high-speed dedicated physical control channel (HS-DPCCH) according to the received uplink feedback resource;

the receiving the uplink feedback trigger information includes:

receiving an uplink random access indication sent by a physical layer; or,

receiving an RNC (radio network controller) indication message, wherein the RNC indication message contains indication information for initiating uplink random access;

the uplink random access specifically includes:

executing uplink random access according to a preset random access parameter ASC; or,

executing uplink random access according to a random access parameter ASC agreed with a network side in advance; or,

and executing uplink random access according to the random access parameter ASC contained in the received broadcast message/special signaling of the network side.

2. The method of claim 1, wherein the uplink feedback resources comprise common enhanced uplink dedicated channel (E-DCH) resources or scrambling code resources.

3. The method according to claim 1, wherein the receiving the uplink random access indication sent by the physical layer specifically includes:

receiving data of a downlink high-speed downlink shared channel HS-DSCH; or,

and receiving an HS-SCCH instruction of a downlink high-speed shared control channel, wherein the HS-SCCH instruction comprises instruction information for triggering uplink random access.

4. The method according to claim 1 or 3, wherein the performing uplink transmission according to the uplink feedback trigger information includes:

and after the uplink public E-DCH resources are obtained, performing uplink HS-DPCCH feedback according to the uplink public E-DCH resources.

5. The method of claim 4, wherein before the performing the uplink HS-DPCCH feedback according to the uplink common E-DCH resource, further comprising:

initiating uplink resource conflict detection according to the obtained uplink public E-DCH resources;

judging whether response information of the uplink resource conflict detection is received within preset time, if so, executing the step of performing uplink HS-DPCCH feedback according to the uplink public E-DCH resource; and if not, releasing the received uplink public E-DCH resources.

6. The method according to claim 5, wherein the initiating uplink resource collision detection according to the received uplink common E-DCH resource comprises:

and constructing a virtual data packet and carrying out uplink transmission, wherein the virtual data packet comprises a wireless network temporary identifier.

7. The method of claim 6, wherein the processing of the dummy packets is terminated at a base station side.

8. The method of claim 6, wherein the size of the virtual data packet is 18 bits.

9. The method of claim 1, further comprising:

receiving a broadcast containing available uplink feedback resources, and determining the available uplink feedback resources; or,

pre-configuring available uplink feedback resources; or,

receiving a Radio Resource Control (RRC) dedicated signaling, wherein the RRC dedicated signaling comprises available uplink feedback resources.

10. The method according to claim 9, wherein the receiving the uplink feedback trigger information specifically includes:

and receiving a downlink HS-SCCH instruction, wherein the HS-SCCH instruction comprises an appointed uplink feedback resource, and the appointed uplink feedback resource is one of the available uplink feedback resources.

11. The method of claim 10, further comprising:

and when the uplink HS-DPCCH feedback is carried out according to the specified uplink feedback resource, if the specified uplink feedback resource is a scrambling code resource and uplink data needs to be sent, sending a pre-selected signature by adopting a scrambling code corresponding to the scrambling code resource, and carrying out random access to obtain a public E-DCH resource.

12. An uplink feedback method for an HS-DPCCH (high speed-dedicated physical control channel), comprising the following steps:

issuing uplink feedback trigger information;

receiving uplink random access information and uplink transmission, wherein the uplink transmission comprises uplink HS-DPCCH feedback carried out according to the issued uplink feedback resource;

the issuing of the uplink feedback trigger information comprises issuing an uplink random access indication through a physical layer;

the uplink random access specifically includes:

executing uplink random access according to a preset random access parameter ASC; or,

executing uplink random access according to a random access parameter ASC agreed with a network side in advance; or,

and executing uplink random access according to the random access parameter ASC contained in the received broadcast message/special signaling of the network side.

13. The method of claim 12, wherein the issuing the uplink random access indicator by the physical layer comprises:

sending downlink HS-DSCH data; or,

and sending a downlink HS-SCCH instruction, wherein the HS-SCCH instruction comprises instruction information for triggering uplink random access.

14. The method of claim 12 or 13, wherein the receiving the uplink transmission comprises:

sending response information of the uplink random access information, wherein the response information comprises specified uplink public E-DCH resources;

and receiving the uplink HS-DPCCH feedback sent according to the uplink public E-DCH resource.

15. The method of claim 14, wherein prior to the receiving the uplink HS-DPCCH feedback sent based on the uplink common E-DCH resource, further comprising:

receiving uplink resource conflict detection initiated according to the uplink public E-DCH resource;

and judging whether the uplink public E-DCH resources conflict or not, if not, returning response information of the uplink resource conflict detection in preset time, and then executing the step of receiving uplink HS-DPCCH feedback sent according to the uplink public E-DCH resources, and if so, not returning the response information of the uplink resource conflict detection.

16. The method of claim 15, wherein the receiving an uplink resource collision detection initiated according to the uplink common E-DCH resource comprises:

and receiving a virtual data packet sent by an uplink, wherein the virtual data packet comprises a wireless network temporary identifier.

17. The method of claim 16, wherein the processing of the dummy packets is terminated at a base station side.

18. The method according to claim 17, wherein the issuing of the uplink feedback trigger information specifically includes:

and sending a downlink HS-SCCH instruction, wherein the HS-SCCH instruction comprises an appointed uplink feedback resource, and the appointed uplink feedback resource is one of the predetermined available uplink feedback resources.

19. A UE, comprising:

a trigger receiving unit, configured to receive uplink feedback trigger information;

an uplink sending unit, configured to perform uplink random access according to the uplink feedback trigger information, and perform uplink sending, where the uplink sending includes performing uplink HS-DPCCH feedback according to a received uplink feedback resource;

the trigger receiving unit is specifically configured to receive an uplink random access indication sent by a physical layer; or receiving an RNC indication message, wherein the RNC indication message comprises indication information for initiating uplink random access.

20. The UE of claim 19, wherein the uplink transmitting unit comprises:

and the feedback subunit is used for carrying out uplink HS-DPCCH feedback according to the uplink public E-DCH resources after the uplink public E-DCH resources are obtained.

21. The UE of claim 20, wherein the uplink transmitting unit further comprises:

a detection subunit, configured to initiate uplink resource collision detection according to the received uplink common E-DCH resource, after obtaining the uplink common E-DCH resource, before performing uplink HS-DPCCH feedback according to the uplink common E-DCH resource;

a response judgment subunit, configured to judge whether response information of the uplink resource collision detection is received within a preset time, and if yes, perform uplink HS-DPCCH feedback by the feedback subunit according to the uplink common E-DCH resource; and if not, releasing the received uplink public E-DCH resources.

22. The UE of claim 21,

the detection subunit is specifically configured to construct a virtual data packet and perform uplink transmission, where the virtual data packet includes a wireless network temporary identifier.

23. The UE of claim 19, further comprising:

a resource obtaining unit, configured to receive a broadcast including an available uplink feedback resource, and determine the available uplink feedback resource; or, pre-configuring available uplink feedback resources; or receiving an RRC dedicated signaling, wherein the RRC dedicated signaling comprises available uplink feedback resources.

24. The UE of claim 23,

the trigger receiving unit is specifically configured to receive a downlink HS-SCCH indication, where the HS-SCCH indication includes an assigned uplink feedback resource, and the assigned uplink feedback resource is one of the available uplink feedback resources.

25. A base station, comprising:

the trigger unit is used for issuing uplink feedback trigger information;

an uplink receiving unit, configured to receive uplink random access information and uplink transmission, where the uplink transmission includes uplink HS-DPCCH feedback performed according to a downlink uplink feedback resource;

the triggering unit is specifically used for issuing an uplink random access instruction through a physical layer;

the uplink random access specifically includes:

executing uplink random access according to a preset random access parameter ASC; or,

executing uplink random access according to a random access parameter ASC agreed with a network side in advance; or,

and executing uplink random access according to the random access parameter ASC contained in the received broadcast message/special signaling of the network side.

26. The base station of claim 25,

the triggering unit is specifically used for sending downlink HS-DSCH data; or sending a downlink HS-SCCH instruction, wherein the HS-SCCH instruction comprises instruction information for triggering uplink random access.

27. The base station according to claim 25 or 26, wherein the uplink receiving unit comprises:

a response subunit, configured to send response information of the uplink random access information, where the response information includes a specified uplink common E-DCH resource;

and the feedback receiving subunit is used for receiving the uplink HS-DPCCH feedback sent according to the uplink public E-DCH resource.

28. The base station of claim 27, wherein the uplink receiving unit further comprises:

a detection receiving subunit, configured to receive an uplink resource collision detection initiated according to the uplink common E-DCH resource before the feedback receiving subunit receives an uplink HS-DPCCH feedback sent according to the uplink common E-DCH resource;

and the conflict judgment subunit is used for judging whether the uplink public E-DCH resource conflicts, if not, returning response information of the uplink resource conflict detection within preset time, and then receiving uplink HS-DPCCH feedback sent according to the uplink public E-DCH resource by the feedback receiving subunit, and if so, not returning the response information of the uplink resource conflict detection.

29. The base station of claim 28,

the detection receiving unit is specifically configured to receive a virtual data packet sent uplink, where the virtual data packet includes a radio network temporary identifier.

30. The base station of claim 25,

the triggering unit is specifically configured to send a downlink HS-SCCH indication, where the HS-SCCH indication includes an assigned uplink feedback resource, and the assigned uplink feedback resource is one of predetermined available uplink feedback resources.

31. An uplink feedback system for HS-DPCCH, comprising: a base station or UE, the base station in communication with the UE; wherein

The base station is used for issuing uplink feedback trigger information; receiving uplink transmission of UE;

the UE is used for receiving uplink feedback trigger information to trigger uplink random access; performing uplink transmission to the base station according to the uplink feedback trigger information, wherein the uplink transmission comprises performing uplink HS-DPCCH feedback according to the received uplink feedback resource;

the receiving the uplink feedback trigger information includes:

receiving an uplink random access indication sent by a physical layer; or,

receiving an RNC (radio network controller) indication message, wherein the RNC indication message contains indication information for initiating uplink random access;

the uplink random access specifically includes:

executing uplink random access according to a preset random access parameter ASC; or,

executing uplink random access according to a random access parameter ASC agreed with a network side in advance; or,

and executing uplink random access according to the random access parameter ASC contained in the received broadcast message/special signaling of the network side.