CN101521625B - Method and equipment for distributing network transmission resource - Google Patents
Method and equipment for distributing network transmission resource Download PDFInfo
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Abstract
The invention discloses a method for distributing network transmission resource. The method aims at the resource transmitted by activation/silence characteristic distribution of services such as VoIP and the like, adopts different resource distribution strategies by activation period re-transmission and silence period primary transmission/re-transmission , transmits a silence period primary transmission data package or a primary transmission and re-transmission data package by a reserved resource block (M is less than Y and not less than X) with the spacing of M, transmits an activation periodprimary transmission data package by the reserved resource block (N1 is less than V and not less than U) with the spacing of N1, and transmits an activation period re-transmission data package by a s tatic/dynamic resource block which is dynamically distributed. The invention also discloses equipment for distributing the network transmission resource. When the method and the equipment are applied,the system does not need to dynamically dispatch the resource for activation period re-transmission and does not need to dynamically dispatch the resource for the silence period re-transmission furth er. The method and the equipment improve the utilization ratio of the system resource, simplify the signaling cost for silence period re-transmission simultaneously and reduce the power consumption ofthe UE.
Description
Technical field
The present invention relates to voice-over-net (VoIP, Voice Over Internet Protocol) resource technology, particularly a kind of method and apparatus of distribution network transfer resource.
Background technology
The VoIP business is widely used a kind of packet domain in the prior art (PS, Packet Switch) speech business.The VoIP speech business can utilize long-term evolution plan (LTE, Long Term Evolved) shared channel (SCH in the system, Shared Channel), and adopt high speed downlink packet access/high speed uplink packet to insert (HSDPA/HSUPA, High Speed Downlink Packet Access/HighSpeed Uplink Packet Access) technology is carried out voice transfer, can realize mixing automatic re-transmission (HARQ, Hybrid Automatic Repeat Request), fast dispatch, Adaptive Modulation and Coding (AMC, Adaptive Modulation and Coding) and channel resource function such as distribute rationally.
In the VoIP transmission course,, then need to retransmit this packet after transmission first if certain packet fails correctly to be received by the other side.Wherein, packet is called the first packet that passes when transmitting first, and can be described as retransmission data packet may when retransmitting.Accordingly, biography packet and retransmission data packet may allocation of transmission resources headed by need be before VoIP transmission.
At first by base station (Node B) or radio network controller (RNC, Radio Network Controller) static allocation is a plurality of is used to transmit the first head that passes packet and passes Resource Block, also claim the reserved resource piece, below be that example describes with Node B, the time interval that the head of per two static allocation passes between the Resource Block is 20ms.Then, by subscriber equipment (UE, User Equipment) in each first time interval that passes between the Resource Block, by High-Speed Shared Control Channel (HS-SCCH, High-Speed Shared Control Channel) monitors the dynamic resource indication information that the base station sends, if the indication information that receives is represented and need be retransmitted, then UE request base station is carried out dynamic resource scheduling and is used to transmit the re-transmission Resource Block of retransmission data packet may with dynamic assignment, and the re-transmission Resource Block of dynamic assignment is any two first biographies between the Resource Block.Fig. 1 is the schematic diagram of VoIP transmission example among the existing LTE.In Fig. 1, solid rectangular block represents that the head of static allocation passes Resource Block, and hollow rectangular block is represented the re-transmission Resource Block of dynamic assignment.As seen from Figure 1, the re-transmission Resource Block of dynamic assignment is all two first biographies between the Resource Block.
In the practical application, VoIP is a kind of real-time, interactive class business, and the talk both sides respectively have 50% activation probability, and promptly a side is in state of activation, and the opposing party of talk promptly is in silent status, side speech just, and the opposing party answers.Between active period, the head that the every interval 20ms of UE sends a 320bit passes packet; In quiet period, the head that the every interval 160ms of UE sends a 320bit passes packet.And because the time interval that the head of static allocation passes between the packet is 20ms, thereby in quiet period, in fact per 8 first biographies have only 1 to be used in the first packet that passes of transmission in the Resource Block.
As seen, the method for existing distribution network voice transfer resource can cause a large amount of head to pass Resource Block and be in idle condition in quiet period, has wasted system resource.And the base station needs the Resource Block of dynamic assignment re-transmission constantly, thereby has increased system resource overhead, has reduced usage factor of system resource.Further, after head spread out of mistake, UE need monitor the dynamic resource indication information in head passes time interval between the Resource Block, cause the UE power consumption bigger.
Summary of the invention
In view of this, the invention provides a kind of method of distribution network transfer resource, can improve resource utilization ratio and reduce the UE power consumption.
The present invention also provides a kind of equipment of distribution network transfer resource, can improve resource utilization ratio and reduce the UE power consumption.
The method of a kind of distribution network transfer resource provided by the invention comprises:
For user equipment (UE) is distributed in reserved resource piece in the quiet period, and be distributed in reserved resource piece in the active period for UE, be specially: earlier the time interval is the reserved resource piece of M in the quiet period for described UE is distributed in, and the time interval is other reserved resource pieces of N1 in the quiet period for described UE is distributed in outside the time interval is the reserved resource piece of M then; Wherein, described M, N1 pass the data packet transmission interval and are less than or equal to the first biography of quiet period data packet transmission at interval more than or equal to active period is first;
When UE is in quiet period, utilize first packet and the retransmission data packet may of passing of reserved resource piece transmission quiet period in the described quiet period;
When UE is between active period, utilize the first packet that passes of reserved resource piece transmission active period in the described active period, utilize the Resource Block of dynamic assignment dynamically to retransmit or utilize other UE idle reserved resource piece in quiet period to carry out the dynamic re-transmission of active period retransmission data packet may.
Preferably, when UE is in quiet period, utilize reserved resource piece transmission quiet period first pass packet and the retransmission data packet may of the time interval for M, other reserved resource pieces that are positioned at the time interval and are outside the reserved resource piece of M are that UE is at the idle Resource Block of quiet period, Resource Block idle in the described quiet period is used to carry user face data, and/or detect UE and whether need to enter active period, and by this Resource Block transmission dedicated signaling, UE enters active period in order to indication.
Preferably, the time interval in quiet period is the reserved resource number of blocks of M, equals default first number of times and the maximum retransmission sum of passing.
Preferably, the head in quiet period passes packet and is correctly received, and determines that then remaining all reserved resource pieces are idle Resource Block in this quiet period, and reclaims the reserved resource piece that the remaining described time interval is M in this quiet period.
Preferably, retransmission data packet may in quiet period is by correct reception and do not reach described maximum retransmission, determine that then remaining all reserved resource pieces are idle Resource Block in this quiet period, and reclaim the reserved resource piece that the remaining described time interval is M in this quiet period.
Preferably, in default very first time interval, on default reserved resource piece, do not receive any new data packets of described UE transmission, determine that then described UE is in quiet period.
Preferably, all new data packets quantity of the described UE transmission that receives on default reserved resource piece in the second default time interval do not reach predetermined threshold value, determine that then described UE is in quiet period.
Preferably, in the first or second default time interval, receive A new data packets of described UE transmission, determine that then described UE leaves quiet period; Or,
M is that UE reserves the reserved resource more than A at interval in quiet period, surpasses A if UE receives the new data packets of described UE transmission in first or second time interval, determines that then described UE leaves quiet period; Perhaps,
M is that UE reserves one or N reserved resource at interval in quiet period, if the network equipment detects UE and uses this resource transmission data, then in the at interval next or several M of this M interval, continue as this UE and reserve one or N resource, surpass A if UE receives the new data packets of described UE transmission in first or second time interval, determine that then described UE leaves quiet period;
Wherein, A is a predetermined threshold value, and its value is natural number.
Preferably, the UE or the network equipment are notified the beginning and the end of opposite end quiet period by the mode of dedicated signaling; Or
Utilize that untapped intermediate code is offset the beginning and the end of indicating quiet period in the TDD system, receiving terminal judges by detecting having or not of intermediate code skew whether transmitting terminal enters quiet period; Or
Utilize that a pair of untapped intermediate code is offset the beginning and the end of indicating quiet period in the TDD system, send one of them intermediate code skew expression and enter quiet period, send another intermediate code skew expression and leave quiet period.
A kind of equipment of distribution network transfer resource, this equipment comprises: static resource piece allocation units, dynamic resource block allocation units and transmission unit, wherein,
Static resource piece allocation units, be used to user equipment (UE) to be distributed in the interior reserved resource piece of quiet period, and be distributed in reserved resource piece in the active period for UE, be specially: earlier the time interval is the reserved resource piece of M in the quiet period for described UE is distributed in, and the time interval is other reserved resource pieces of N1 in the quiet period for described UE is distributed in outside the time interval is the reserved resource piece of M then; Wherein, described M, N1 pass the data packet transmission interval and are less than or equal to the first biography of quiet period data packet transmission at interval more than or equal to active period is first;
The dynamic resource block allocation units are used to the re-transmission Resource Block of UE dynamic assignment in active period;
Transmission unit is used for when UE is in quiet period, utilizes first packet and the retransmission data packet may of passing of reserved resource piece transmission quiet period in the described quiet period; When UE is in active period, utilize the first packet that passes of reserved resource piece transmission active period in the described active period, utilize the re-transmission Resource Block of dynamic assignment or the reserved resource piece transmission active period retransmission data packet may of other UE free time in quiet period.
As seen from the above technical solution, the method and apparatus of a kind of distribution network transfer resource of the embodiment of the invention, the resource of distributing transmission at the activation/characteristic of mourning in silence of VoIP, by active period being retransmitted and the different resource allocation policy of the first biography/re-transmission employing of quiet period, (X≤M＜Y) transmission quiet period head passes packet can to utilize the reserved resource piece that is spaced apart M, or first the biography and retransmission data packet may, utilization is spaced apart the reserved resource piece of N, and (the first packet that passes of the transmission of U≤N＜V) active period utilizes the Resource Block transmission active period retransmission data packet may of dynamic assignment.Perhaps, utilize reserved resource piece transmission active period and the quiet period retransmission data packet may of the free time in the quiet period; Wherein, quiet period retransmits the idle reserved resource of the quiet period of using this UE, and active period retransmits the idle reserved resource of the quiet period of using other UE.
Utilization is carried out active period and/or quiet period re-transmission at the untapped idle reserved resource piece of quiet period, and system need not to active period dynamically retransmits reserved resource, further, also need not to have improved usage factor of system resource into quiet period retransmits the dynamic dispatching resource; Simultaneously, simplified the signaling consumption that quiet period retransmits, UE need not monitor the dynamic resource indication information by HS-SCCH whole first the biography in the Resource Block interval, has reduced the power consumption of UE.
Description of drawings
Fig. 1 is the schematic diagram of VoIP transmission example among the existing LTE.
Fig. 2 is the schematic flow sheet of a kind of distribution network transfer resource of the present invention.
Fig. 3 is first schematic diagram of a kind of distribution network transfer resource of the present invention.
Fig. 4 is second schematic diagram of a kind of distribution network transfer resource of the present invention.
Fig. 5 is the 3rd schematic diagram of a kind of distribution network transfer resource of the present invention.
Fig. 6 is the 4th schematic diagram of a kind of distribution network transfer resource of the present invention.
Fig. 7 is the 5th schematic diagram of a kind of distribution network transfer resource of the present invention.
Fig. 8 is the 6th schematic diagram of a kind of distribution network transfer resource of the present invention.
Fig. 9 is the concrete schematic diagram of a kind of distribution network transfer resource of the present invention.
Figure 10 is the device structure schematic diagram of a kind of distribution network transfer resource of the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
The embodiment of the invention is at the activation/characteristic of mourning in silence of VoIP transmission, the head biography of quiet period and the head of re-transmission and active period are passed the resource allocation policy reserved resource different with retransmitting employing, for the quiet period prepared separation is reserved resource piece (X≤M＜Y) transmit head to pass and/or retransmission data packet may of M, for the active period prepared separation is reserved resource piece (U≤N1＜V) transmit head to pass packet of N1, active period retransmits and adopts dynamic assignment, and quiet period retransmits the idle reserved resource piece that utilizes in the quiet period.Perhaps, be quiet period reserved resource piece, active period and quiet period retransmit the idle reserved resource piece that all utilizes in the quiet period.
In describing below, for describing for simplicity, X (20ms) is identical at interval if the first biography data packet arrival time interval of active period is with the first biography of active period data packet transmission, and the quiet period data packet arrival time interval, Y (160ms) was identical at interval with the first biography of quiet period data packet transmission.
Fig. 2 is the schematic flow sheet of a kind of distribution network transfer resource of the present invention.Referring to Fig. 2, this flow process comprises:
In this step, distributes resource blocks can adopt following dual mode:
Mode one, be used for the first head that passes packet of active period and quiet period and pass Resource Block employing static resource allocation mode, the re-transmission Resource Block (active period re-transmission) that is used for the active period retransmission data packet may adopts dynamic resource scheduling, be dynamic assignment static state/dynamic resource block, the re-transmission Resource Block of quiet period retransmission data packet may (quiet period re-transmission) utilizes the idle reserved resource piece in the quiet period.Can not need to be the idle reserved resource piece of quiet period retransmission data packet may dynamic dispatching.
Mode two is used for the first head that passes packet of active period and quiet period and passes Resource Block employing static resource allocation mode, and the re-transmission Resource Block that is used for active period and quiet period retransmission data packet may utilizes the interior idle reserved resource piece of quiet period.Like this, need not further to improve resource utilization into active period and the idle reserved resource piece of quiet period retransmission data packet may dynamic dispatching.
Fig. 3 is first schematic diagram of a kind of distribution network voice transfer of the present invention resource.Referring to Fig. 3, be primarily aimed at the resource block assignments in the mode one: solid solid-line rectangle piece represents that the head of active period or quiet period static allocation passes Resource Block, solid dashed rectangle piece is represented the idle reserved resource piece of static allocation, solid solid-line rectangle piece and solid dashed rectangle piece are formed quiet period reserved resource piece, and hollow solid-line rectangle piece represents that the active period of dynamic assignment retransmits Resource Block.The active period of dynamic assignment retransmits Resource Block all between the first biography of two active periods Resource Block.The head of active period and quiet period passes Resource Block, i.e. solid solid-line rectangle piece among the figure, adopt the static resource allocation mode, the head that distributes passes Resource Block and is spaced apart X (20ms), certainly, the activation/characteristic of mourning in silence based on the VoIP transmission, for passing the Resource Block time interval, the head of active period static allocation can be 20ms, also can be according to actual needs, for the head of active period static allocation passes the Resource Block time interval is N1 (U≤N1≤V), wherein, U is the first data packet transmission interval that passes of active period, and V is that quiet period head passes data packet transmission at interval.And be the head of quiet period static allocation pass the Resource Block time interval also can be more than or equal to 20ms smaller or equal to 160ms, active period retransmits and adopts dynamic resource scheduling, promptly utilize dashed rectangle piece solid among the figure, quiet period retransmits the idle reserved resource utilize in the quiet period, i.e. solid solid-line rectangle piece and/or solid dashed rectangle piece among the figure.
Resource distribution mode in mode two is that example describes below, but the resource distribution mode of reference pattern two in the mode one, and be not only resource distribution mode shown in Figure 3.Different with mode two is that active period retransmits and adopts dynamic resource scheduling in the mode one, and is same as the prior art, need not be used for active period at quiet period reserved resource piece and retransmit.
In the practical application, the static resource allocation mode can adopt existing reserved resource mode, promptly every interval X (20ms) reserved resource piece.
Fig. 4 is second schematic diagram of a kind of distribution network voice transfer of the present invention resource.Referring to Fig. 4, the first biography of UE active period utilizes the head of static allocation to pass Resource Block, the first biography Resource Block time interval of active period is X (20ms), the first biography Resource Block time interval of quiet period is 160ms, hollow and solid dashed rectangle piece is represented the idle reserved resource piece of quiet period, hollow dashed rectangle piece is used to detect UE and whether leaves quiet period, and solid dashed rectangle piece is represented untapped idle reserved resource piece.The first Resource Block that passes of idle reserved resource piece and quiet period is formed quiet period reserved resource piece.
Hollow dashed rectangle piece is used to detect UE whether to leave silent status for detecting the reserved resource piece that whether has new data packets to arrive, if receiving terminal has not detected data packet transmission at this reserved resource piece, represents that then UE still is in quiet period; If receiving terminal detects this reserved resource piece the new data packets transmission is arranged, represent that then UE enters active period; If receiving terminal has detected the retransmission data packet may transmission, then mark UE temporarily is in quiet period, Node B or RNC continuation reservation one new hollow dashed rectangle piece are used to detect UE and whether leave silent status, and not detected data packet transmission or detected this reserved resource piece at new reserved resource piece until receiving terminal has the new data packets transmission.
Pass through above-mentioned steps, after definite UE still was in quiet period, Node B or RNC reclaimed untapped idle reserved resource piece between this UE quiet period transmission intercal Y, are used for this UE active period or other UE active periods, and/or quiet period re-transmission, and/or other professional dynamic dispatching.
In the practical application, can in quiet period, interval M be that UE reserves the hollow dashed rectangle piece more than the A piece also,, determine that then this UE leaves quiet period if UE receives the new data packets of UE transmission above A in the first or second default time interval.
Perhaps, M is that UE reserves one or the hollow dashed rectangle piece of N piece at interval in quiet period, if the network equipment detects UE and uses this resource transmission new data, then in the at interval next or several M of this M interval, continue as this UE and reserve one or the hollow dashed rectangle piece of N piece; Surpass A if UE receives the new data packets of UE transmission in the first or second default time interval, determine that then this UE leaves quiet period.Wherein, A is a predetermined threshold value, and its value is natural number.
Above-mentionedly be used to detect the method whether UE enters active period by reserve one or N piece resource for quiet period UE, both guaranteed that Node B or RNC can reclaim the reserved resource of quiet period, also guaranteed whether Node B or RNC can enter active period by fast detecting UE simultaneously.
Fig. 5 is the 3rd schematic diagram of a kind of distribution network voice transfer of the present invention resource.Referring to Fig. 5, be used for detecting the method that UE leaves silent status and be described at Fig. 4, do not repeat them here.At this decision rule that active period enters quiet period is described.Do not receive the new data packets of UE transmission on the reserved resource in default very first time interval, the new data packets quantity of the UE that perhaps receives in second default time interval transmission does not reach predetermined threshold value, determines that this UE is in quiet period.
In the practical application,, also can adopt the mode of Resources allocation shown in Figure 6 for the resource of the system of saving.
Fig. 6 is the 4th schematic diagram of a kind of distribution network transfer resource of the present invention.Referring to Fig. 6, at active period, the head that is spaced apart X (20ms) for the UE static allocation passes Resource Block; Quiet period is spaced apart M (the reserved resource piece of X=20ms≤M≤Y=160ms) for the UE static allocation, be used for first biography of quiet period and re-transmission, the time interval in quiet period is the reserved resource number of blocks of M, can equal default first number of times and the maximum retransmission sum of passing.
In the practical application, if the head in quiet period passes packet and is correctly received, or retransmission data packet may is received and is not reached described maximum retransmission by correct, and determine that by the method among Fig. 4 remaining all reserved resource pieces in this quiet period for idle Resource Block, reclaim untapped idle reserved resource piece between this UE quiet period transmission intercal Y.
Perhaps, adopt the mode of Resources allocation shown in Figure 7.
Fig. 7 is the 5th schematic diagram of a kind of distribution network voice transfer of the present invention resource.Referring to Fig. 7, in the quiet period starting stage, (X=20ms≤M≤Y=160ms) is a UE static allocation reserved resource piece to every interval M, be used for first biography of quiet period and/or re-transmission, the time interval in quiet period is the reserved resource number of blocks of M, can equal default first number of times and the maximum retransmission sum of passing, again after several M static allocation Z (1≤Z≤N) individual active period retransmits Resource Block, utilizes the method detection UE among Fig. 4 or Fig. 5 whether to enter active period.In quiet period, (X=20ms≤M≤Y=160ms) is a UE static allocation reserved resource piece to every interval M, is used for that quiet period is first to be passed and retransmit, again between the M of interval static allocation Z (the individual Resource Block of 1≤Z≤N) is used for active period and retransmits, like this, if Z is 1, then can carries out an active period and retransmit; If Z is greater than 1, (A≤Z), can cause other (Z-A) the individual reserved resource piece between the M of interval to be in idle condition under the correct situation after active period retransmits through A re-transmission then.Whether enter the active period method with respect to the detection UE among Fig. 4, this method is reserved one by several M cycles of every interval and is detected the idle reserved resource that new data packets arrives, and has reduced and has detected the reserved resource expense that whether has new data packets to arrive.
In the practical application, for the mode of Fig. 6 and Resources allocation shown in Figure 7, can also be active period and quiet period retransmit correct after, reclaim the idle reserved resource piece of M at interval again, be used for other UE active period, and/or quiet period retransmits.Perhaps,
In the practical application, can also adopt the mode of Resources allocation shown in Figure 8.
Fig. 8 is the 6th schematic diagram of a kind of distribution network voice transfer of the present invention resource.Referring to Fig. 8, no longer UE is entered or leaves quiet period at this and be described.In quiet period, (X=20ms≤M≤Y=160ms) is a UE static allocation reserved resource piece to every interval M, is used for that quiet period is first to be passed and the re-transmission of activation/quiet period.After Node B or RNC receive ACK, reclaim the idle reserved resource piece that is spaced apart M of all free time in the Y of interval, be used for other UE active period, and/or the re-transmission of quiet period; If receive NACK, then continuing as this UE keeps next M reserved resource piece at interval and is used for retransmitting, up to retransmission data packet may transmission correct or reach maximum retransmission N after reclaim the idle reserved resource piece of this Y at interval again, be used for other UE active period, and/or the quiet period re-transmission.
Institute it should be noted that above-mentioned in every interval M (X=20ms≤M≤Y=160ms) is UE static allocation reserved resource piece, for different application scenarioss, at interval the value of M may and inequality, be configured according to actual needs by concrete application scenarios.
Step 202 when UE is in quiet period, is utilized first packet or first packet and the retransmission data packet may of passing of passing of reserved resource piece transmission in the quiet period;
When UE is between active period, utilize the first first packet that passes of Resource Block transmission that passes of reservation in the active period, utilize the re-transmission Resource Block of dynamic assignment or utilize the idle reserved resource piece transmission retransmission data packet may of other UE in quiet period.
In this step, the corresponding resource blocks that quiet period transmission first biography packet or first biography packet and retransmission data packet may and the first biography of active period transmission packet all utilize this UE to reserve.Node B or RNC obtain the idle reserved resource piece of UE in quiet period, utilize idle reserved resource piece to carry out active period, and/or quiet period retransmits.
In the present embodiment, owing to be that the activation/characteristic of mourning in silence at UE is carried out the first distribution that passes and retransmit Resource Block, Node B or RNC need determine to activate/beginning and the end of quiet period, so that after UE enters quiet period, obtain UE at the idle reserved resource piece of quiet period, reclaim or utilize idle reserved resource piece to carry out active period, and/or quiet period retransmits.
Determine the beginning of activation/quiet period and the method for end, can be to adopt (user's face) Resource Block transmission dedicated signaling idle in the quiet period, promptly by Resource Block idle in the quiet period is used to carry user face data, and/or whether detection UE needs to enter active period, and by this Resource Block transmission dedicated signaling, UE enters active period in order to indication; Or notify the beginning and the end of opposite end quiet period by the mode of dedicated signaling; Or untapped intermediate code skew (Midamble Shift) in the TDD system is used to indicate the beginning and the end of quiet period, receiving terminal judges by detecting having or not of a certain intermediate code skew whether transmitting terminal enters quiet period, and vice versa; Or be used to indicate the beginning and the end of quiet period by a pair of untapped intermediate code skew in the TDD system, and send a certain intermediate code skew expression and enter quiet period, send another intermediate code skew expression and leave quiet period.
Also can be by in the window of Node B or RNC, receiving K1 first packet or first packet and the retransmission data packet may of passing of passing continuously, the expression active period begins; Or do not receive K2 first packet or first packet and the retransmission data packet may of passing of passing continuously, all data packet numbers of the UE that promptly receives in default time interval transmission do not reach predetermined threshold value, the beginning of expression quiet period; Wherein, K1, K2 can be provided with in advance according to actual needs by Node B or RNC.For example, if the reserved resource piece time interval is bigger, its value can be less; Otherwise value can be bigger.In the present embodiment, the first packet that passes can carry " New " sign and is used for passing packet headed by the expression in its packet, in the present embodiment, head is passed packet and retransmission data packet may is called packet.In the practical application, also can pass beginning or the end that packet or packet are indicated active period by the head that has or not continuous reception some.Can also be in certain reserved resource block gap, to receive/do not receive that continuous or discrete predefined packet/head passes the sign of packet as the beginning or the end of active period.
In continuous K2 reserved resource block gap, do not have the first packet/packet that passes and send, send both sides and think that this link enters quiet period.Node B reclaims the reserved resource piece of quiet period free time, is used for active period, and/or quiet period retransmits.
Because Node B is when distributing the static resource piece for UE, considered active period, and/or quiet period retransmits required reserved resource piece, therefore, in this step, when definite UE is in quiet period, obtain the reserved resource piece of the free time of UE in quiet period, specifically can not repeat them here referring to described in the step 201.
As the continuous K1 of Node B reserved resource block gap (K1xM, for example 160ms or 200ms etc.) in all receive the first packet/packet that passes, determine that then this user enters active period, by Node B dynamic dispatching Resource Block or utilize the reserved resource piece of the quiet period free time that Node B reclaims, be used to transmit the retransmission data packet may of UE between active period.In the practical application, Node B receives/does not receive that continuous or discrete predefined packet/head passes the sign of packet as the beginning or the end of active period in certain reserved resource block gap.
Fig. 9 is the concrete schematic diagram of a kind of distribution network transfer resource of the present invention.Referring to Fig. 9, among Fig. 9, the time interval of reserved resource piece is that (X=20ms≤M≤Y=160ms), suppose that UE1 and UE2 are in active period, UE3 and UE4 are in quiet period to M.When UE3 and/or UE4 need carry out that quiet period is first to be passed or retransmit, utilize the reserved resource piece of the quiet period time interval for M; Pass or retransmit successfully if UE3 and/or UE4 quiet period are first, the time interval that Node B reclaims the quiet period free time is the reserved resource piece of M, is used for UE1 and/or UE2 active period and retransmits.In the practical application, also can be that the reserved resource piece of M is used for UE1 and/or the re-transmission of UE2 quiet period with the time interval of quiet period free time.
In the practical application,, in the above-mentioned example, suppose that the first packet error rate (BLER, Block Error Ratio) that passes packet is 10%～30% in the LTE system because the activation probability of VoIP voice is 50%.If the quiet period reserved resource piece time interval is 20ms, the first time interval that passes packet arrival of quiet period is 160ms, then the resource utilization of this system is 20/160=1/8, the availability of idle reserved resource piece is (1-1/8) * 50%=43.75%, therefore, enough BLER are 10%～30% retransmission cost.
As seen from the above-described embodiment, the resource of distributing transmission at the activation/characteristic of mourning in silence of VoIP, by active period and the first biography/re-transmission of quiet period are adopted different resource allocation policies, active period retransmits and adopts dynamic resource scheduling, and the quiet period re-transmission utilizes the reserved resource piece of the free time in the quiet period.Perhaps, active period and quiet period retransmit the reserved resource piece that all utilizes the free time in the quiet period.And, when being quiet period static allocation reserved resource piece, can be that every interval X (20ms) distributes the reserved resource piece; Also can be that (X=20ms＜M≤Y=160ms) distributes reserved resource piece, the compartment reserved resource piece between the M of interval again to every interval M; Also can be behind the reserved resource piece that distributes some interval M, distribute several continuous X reserved resource piece at interval; Can also be that (X=20ms≤M＜Y=160ms) distributes the reserved resource piece to every interval M, Node B or RNC reclaim the interval Y reserved resource piece that is spaced apart M or X of all interior free time after receiving ACK again, if receive NACK, then continue as this UE keep next M at interval or next X at interval the reserved resource piece of M between at interval be used for retransmitting, up to the retransmission data packet may transmission correct or reach maximum retransmission N after reclaim this Y reserved resource piece of the free time at interval again.System need not to retransmit the dynamic dispatching resource into active period, further, also need not to quiet period retransmits the dynamic dispatching resource, the reserved resource piece that utilizes the reserved resource piece to be in the free time of idle condition in quiet period carries out active period and/or quiet period retransmits, and has improved usage factor of system resource; Simultaneously, simplified the signaling consumption that quiet period retransmits, UE need not monitor dynamic resource indication informations such as HS-SCCH in the whole first Resource Block interval that passes, and has reduced the power consumption of UE.
Figure 10 is the device structure schematic diagram of a kind of distribution network transfer resource of the present invention.Referring to Figure 10, this equipment comprises: static resource piece allocation units, dynamic resource block allocation units and transmission unit, wherein,
Static resource piece allocation units are used to UE to be distributed in reserved resource piece in the quiet period, and are the reserved resource piece of UE in being distributed between active period;
The dynamic resource block allocation units are used to the re-transmission Resource Block of UE dynamic assignment in active period.
Transmission unit is used for when UE is in quiet period, utilizes first packet or first packet and the retransmission data packet may of passing of passing of reserved resource piece transmission in the quiet period; When UE is between active period, utilize the first packet that passes of reserved resource piece transmission in the active period, utilize the re-transmission Resource Block of dynamic assignment or the reserved resource piece transmission retransmission data packet may of other UE free time in quiet period.
Idle reserved resource piece reallocation unit, be used for dynamic assignment UE between active period the re-transmission Resource Block and from idle reserved resource piece distribute UE in quiet period the re-transmission Resource Block or from idle reserved resource piece the re-transmission Resource Block of distribution UE in active period and quiet period.
More than lift preferred embodiment; the purpose, technical solutions and advantages of the present invention are further described; institute is understood that; the above only is preferred embodiment of the present invention; not in order to restriction the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for a distribution network transfer resource is characterized in that, this method comprises:
For user equipment (UE) is distributed in reserved resource piece in the quiet period, and be distributed in reserved resource piece in the active period for UE, be specially: earlier the time interval is the reserved resource piece of M in the quiet period for described UE is distributed in, and the time interval is other reserved resource pieces of N1 in the quiet period for described UE is distributed in outside the time interval is the reserved resource piece of M then; Wherein, described M, N1 pass the data packet transmission interval and are less than or equal to the first biography of quiet period data packet transmission at interval more than or equal to active period is first;
When UE is in quiet period, utilize first packet and the retransmission data packet may of passing of reserved resource piece transmission quiet period in the described quiet period;
When UE is between active period, utilize the first packet that passes of reserved resource piece transmission active period in the described active period, utilize the Resource Block of dynamic assignment dynamically to retransmit or utilize other UE idle reserved resource piece in quiet period to carry out the dynamic re-transmission of active period retransmission data packet may.
2. the method for claim 1 is characterized in that,
When UE is in quiet period, utilize reserved resource piece transmission quiet period first pass packet and the retransmission data packet may of the time interval for M, other reserved resource pieces that are positioned at the time interval and are outside the reserved resource piece of M are that UE is at the idle Resource Block of quiet period, Resource Block idle in the described quiet period is used to carry user face data, and/or whether detection UE needs to enter active period, and by this Resource Block transmission dedicated signaling, UE enters active period in order to indication.
3. method as claimed in claim 2 is characterized in that, the time interval in quiet period is the reserved resource number of blocks of M, equals default first number of times and the maximum retransmission sum of passing.
4. method as claimed in claim 3, it is characterized in that, head in quiet period passes packet and is correctly received, and determines that then remaining all reserved resource pieces are idle Resource Block in this quiet period, and reclaims the reserved resource piece that the remaining described time interval is M in this quiet period.
5. method as claimed in claim 3, it is characterized in that, retransmission data packet may in quiet period is by correct reception and do not reach described maximum retransmission, determine that then remaining all reserved resource pieces are idle Resource Block in this quiet period, and reclaim the reserved resource piece that the remaining described time interval is M in this quiet period.
6. as any described method in the claim 1 to 5, it is characterized in that, in default very first time interval, on default reserved resource piece, do not receive any new data packets of described UE transmission, determine that then described UE is in quiet period.
7. as any described method in the claim 1 to 5, it is characterized in that, all new data packets quantity of the described UE transmission that receives on default reserved resource piece in the second default time interval do not reach predetermined threshold value, determine that then described UE is in quiet period.
8. as any described method in the claim 1 to 5, it is characterized in that,
In the first or second default time interval, receive A new data packets of described UE transmission, determine that then described UE leaves quiet period; Or,
M is that UE reserves the reserved resource more than A at interval in quiet period, surpasses A if UE receives the new data packets of described UE transmission in first or second time interval, determines that then described UE leaves quiet period; Perhaps,
M is that UE reserves one or N reserved resource at interval in quiet period, if the network equipment detects UE and uses this resource transmission data, then in the at interval next or several M of this M interval, continue as this UE and reserve one or N resource, surpass A if UE receives the new data packets of described UE transmission in first or second time interval, determine that then described UE leaves quiet period;
Wherein, A is a predetermined threshold value, and its value is natural number.
9. as any described method in the claim 1 to 5, it is characterized in that the UE or the network equipment are notified the beginning and the end of opposite end quiet period by the mode of dedicated signaling; Or
Utilize that untapped intermediate code is offset the beginning and the end of indicating quiet period in the TDD system, receiving terminal judges by detecting having or not of intermediate code skew whether transmitting terminal enters quiet period; Or
Utilize that a pair of untapped intermediate code is offset the beginning and the end of indicating quiet period in the TDD system, send one of them intermediate code skew expression and enter quiet period, send another intermediate code skew expression and leave quiet period.
10. the equipment of a distribution network transfer resource is characterized in that, this equipment comprises: static resource piece allocation units, dynamic resource block allocation units and transmission unit, wherein,
Static resource piece allocation units, be used to user equipment (UE) to be distributed in the interior reserved resource piece of quiet period, and be distributed in reserved resource piece in the active period for UE, be specially: earlier the time interval is the reserved resource piece of M in the quiet period for described UE is distributed in, and the time interval is other reserved resource pieces of N1 in the quiet period for described UE is distributed in outside the time interval is the reserved resource piece of M then; Wherein, described M, N1 pass the data packet transmission interval and are less than or equal to the first biography of quiet period data packet transmission at interval more than or equal to active period is first;
The dynamic resource block allocation units are used to the re-transmission Resource Block of UE dynamic assignment in active period;
Transmission unit is used for when UE is in quiet period, utilizes first packet and the retransmission data packet may of passing of reserved resource piece transmission quiet period in the described quiet period; When UE is in active period, utilize the first packet that passes of reserved resource piece transmission active period in the described active period, utilize the re-transmission Resource Block of dynamic assignment or the reserved resource piece transmission active period retransmission data packet may of other UE free time in quiet period.
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