CN2857338Y - Radio transmitting/receiving unit of carrying out reinforced upper chain multiple tasks - Google Patents

Radio transmitting/receiving unit of carrying out reinforced upper chain multiple tasks Download PDF

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Publication number
CN2857338Y
CN2857338Y CNU2005201128174U CN200520112817U CN2857338Y CN 2857338 Y CN2857338 Y CN 2857338Y CN U2005201128174 U CNU2005201128174 U CN U2005201128174U CN 200520112817 U CN200520112817 U CN 200520112817U CN 2857338 Y CN2857338 Y CN 2857338Y
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CN
China
Prior art keywords
mac
entity
cochain
combination
multitask
Prior art date
Application number
CNU2005201128174U
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Chinese (zh)
Inventor
史蒂芬·E·泰利
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美商内数位科技公司
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Priority to US58896004P priority Critical
Priority to US60/588,960 priority
Priority to US11/113,763 priority
Application filed by 美商内数位科技公司 filed Critical 美商内数位科技公司
Application granted granted Critical
Publication of CN2857338Y publication Critical patent/CN2857338Y/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0215Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • H04W28/0221Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices power availability or consumption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0268Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

Abstract

A method and apparatus for enhanced uplink multiplexing are disclosed. A set of combinations of MAC-d flows (and/or logical channels) that are allowed to be multiplexed within a MAC-e PDU is defined for a WTRU. The WTRU MAC-e entity selects a combination among a set of allowed combinations for multiplexing MAC-d flows for each MAC-e PDU. Certain MAC-d flow combinations may be defined that can not be blocked from transmission even when the WTRU is in a transmit power restricted state. The amount of data from each logical channel or corresponding MAC-d flow that can be multiplexed within a MAC-e PDU may be defined to ensure guaranteed data rates. When the WTRU is in a restricted power condition, an indication of the restricted power condition may be passed to the Node-B with the EU transmission.

Description

Carry out the wireless transmitter/receiver unit that strengthens the cochain multitask

Technical field

The relevant a kind of wireless telecommunication system of the utility model, especially relevant a kind of device that strengthens the cochain multitask of carrying out.

Background technology

In the third generation (3G) wireless telecommunication system, a wireless transmitter/receiver unit (WTRU) has the ability that the application of multiple different service quality (QoS, Quality of Services) demand is carried out in support simultaneously.Be logic channel about application from wireless link key-course (RLC) individual data stream, these logic channels are controlled (MAC) layer interior mapping to transmission channel (TrCH) in medium accesses, each TrCH is associated with a specific QoS, and the logic channel with similar QoS demand is just videoed to the TrCHs that shares.

It is because of allowing the error protection of different brackets that but different TrCHs multitask to CCTrCH Coded Composite Transport Channels (CCTrCH), each TrCH have that a specified coding rate and the encoding rate rate in CCTrCH match.The TrCHs combination that is allowed in a CCTrCH Transmission Time Interval is defined by a transport format combination set (TFCS), and this TFCS is defined in TrCHs permission multitask combination in each CCTrCH TTI.

Among each TTI, this MAC is by selecting a transformat combination (TFC) in this TFCS or the configuration TFC subclass, it is selected to the transmission priority of each TrCH logic channel that TFCs is based on reflection, and the TFC selective rule is based on the transmission of maximization highest priority data.

This TFCS is configured to allow some TrCH data combination and does not allow other TrCH data combination, and this mechanism is in order to guarantee the minimum and maximum data transfer rate of each TrCH in CCTrCH.

Among each TTI, the TFCs in TFCS is examined to judge whether this TFCs can be supported by the ERP of this WTRU.The TFC that can not be supported can be regarded as at the power in excess state, and can be in the periodic transfer of a weak point, if can't satisfy transmit power needs in this cycle, then TFC can be blocked transmission, and some TFCs in " minimal set " can not be blocked.Transmission channel configuration, TFC selective rule and the minimal set of these TFCS all are the QoS that is used for keeping individual data stream.

Developed at present and enhancing cochain (EU) with transmission latency of being reduced in cochain and increase radio resource efficiency.A WTRU only provides an EU TrCH, because each WTRU only has an EU TrCH, therefore transformat (TFs) table of an EU TrCH is only arranged and can't differentiate the demand of Different Logic channel priority and QoS, the CCTrCH TFCS of configuration and TFC selective rule are suitably coordinated the transmission multitask in TTI, only just useful when the TrCHs that the logic channel that a plurality of TrCHs and shared QoS demand are provided is videoed extremely specific.Owing to only an EU TrCH arranged, these multitasks rules and to offer the QoS of individual data stream just invalid to EU.

In order suitably to keep the QoS demand of individual data stream, therefore just need for logic channel or reflection to the MAC-d stream that strengthens cochain medium accesses control (MAC-e) protocol Data Unit (PDUs), define new WTRU multitask rule.

The utility model content

The purpose of this utility model provides a kind of wireless transmitter/receiver unit can carry out the multitask of enhancing cochain suitably to keep the QoS demand of individual data stream.

A kind of wireless transmitter/receiver unit that strengthens the cochain multitask of carrying out is characterized in comprising: (a) wireless link key-course; (b) a special channel media access control entity is connected to this wireless link key-course; (c) one strengthens cochain medium accesses controlled entity, be connected to this special channel media access control entity, in order to from a combination that allows to select the combination of sets special channel media access control stream, and flow to a protocol Data Unit that strengthens the control of cochain medium accesses according to selected this special channel media access control of special channel media access control stream combination multitasking; And (d) physical entity, be connected to this enhancing cochain medium accesses controlled entity.

The utility model is a kind of device that strengthens the cochain multitask of carrying out.For each WTRU defines the combination that one group of MAC-d flows (and/or logic channel), it allows multitask in a MAC-e PDU.This WTRUMAC-e entity is that each MAC-e PDU selects a combination from the permission combination of one group of multitask MAC-d stream.Some logic channel of definable or corresponding MAC-d stream make up and can't be blocked transmission, when promptly this WTRU of box lunch is in a transmission power limit state.Definable from each logic channel or corresponding MAC-d stream and can a MAC-e PDU in the data volume of multitask, guaranteed certain data transfer rate.When WTRU was in a power-limiting state, it can reduce the EU traffic load and is lower than the EU channel that is received from Node B and assigns the load allowed, and the indication of this power-limiting state can be passed to the Node B of this EU transmission.Wireless transmitter/receiver unit of the present utility model can be carried out and strengthen the cochain multitask, and it provides the combination of sets that defines one group of MAC-d stream (and/or logic channel) for each WTRU, so that allow multitasking in a MAC-e PDU.

Description of drawings

By the description of a hereinafter preferred embodiment, the example that is given, and with reference to corresponding accompanying drawing, the utility model can obtain to understand in more detail, wherein:

Figure 1 shows that according to the WTRU calcspar of the utility model in order to the EU multitask;

Figure 2 shows that according to the program flow diagram of the utility model in order to the EU multitask; And

Figure 3 shows that this entity comprises the mac function except that control signal according to the embodiment calcspar of the utility model one WTRU MAC-e entity.

Embodiment

After this, proprietary term " WTRU " comprises but is not limited to user's equipment, one and moves platform, fixing or moving user unit, a calling set or can operate any type of device under a wireless environment.When after this this paper mention proprietary term " Node B ", it comprises but is not limited to a base station, a platform controller, an access point or any type of interface arrangement under wireless environment.

Figure 1 shows that according to WTRU 100 calcspars of the utility model in order to the EU multitask.This WTRU comprises a rlc layer 102, a MAC-d entity 104, a MAC-e entity 106 and a PHY entity 108.This rlc layer 102, this MAC-d entity 104 and this PHY entity 108 are carried out the similar functions of WTRU in existing wireless telecommunication system.It should be noted that configuration shown in Figure 1 provides an example, and this MAC-d entity and the performed function of MAC-e entity can merge into an entity, and the function of entity can be implemented in more or less functional entity also among Fig. 1.

This rlc layer 102 comprises one or more RLC entity, and all the logic channel with specific is relevant for each, for example Dedicated Control Channel (DCCH) or special flow channel (DTCH).Each MAC-d stream has its relevant QoS attribute.This MAC-e entity 106 comprises a multitask function 106a and an EU TFC selection function 106b.This MAC-e entity to MAC-e PDUs, is selected a suitable TF for strengthening cochain dedicated channel (E-DCH) with this MAC-d stream multitask simultaneously.This PHY entity 108 is handled the MAC-ePDUs of wireless transmission.

This WTRU 100 is configured to support that the EU by single EU TrCH transmits.According to the utility model, the permission of one group of MAC-d stream (and/or logic channel) combination, it allows multitask in a MAC-e PDU, is each WTRU 100 definition.MAC-e PDU multitask rule is defined, and it is described can select for which data from MAC-d stream (and/or logic channel), and multitask to MAC-e PDU is to keep the QoS demand.This rule can be pre-defined by standard, or send a signal to WTRU 100 by radio network controller (RNC) by Radio Resource control (RRC) program.The RRC that sends combination of sets provides the ability of RNC control logic channel or corresponding MAC-d stream, has reached its specific QoS demand.

Be that convenient WTRU is in some MAC-d stream (and/or logic channel) combination that the transmission power limit state can not be blocked transmission yet, also can be defined to avoid the blockade of arbitrary MAC-d stream (and/or logic channel).Also can under the EU transmission assignment that does not need from Node B, allow the transmission of these combinations.

According to an execution mode of the present utility model, can multitask in a MAC-ePDU from each MAC-d stream (and/or logic channel), the PDUs quantity of every Transmission Time Interval (TTI) also can be configured.The PDUs quantity of every TTI is represented the data transfer rate of each channel, and for instance, all allow to make up one or more PDUs that can comprise from a particular logical channel, and it will guarantee always to serve this particular logical channel.

According to another execution mode of the utility model, but this combination of sets can be from the particular data rate definition of each multitask to the MAC-d of this MAC-e PDUs stream (and/or logic channel), combination of sets can also particular data rate in conjunction with/or do not define in conjunction with the particular data rate of other MAC-d stream (and/or logic channel).Data transfer rate from each MAC-d stream (and/or logic channel) can meet the data transfer rate that other other MAC-d flows (and/or logic channel) clearly, and in some combination, other channel can not transmit data.Combination also can be drawn the possible speed of each MAC-d stream (and/or logic channel) of identification, and allows this WTRU to select any known speed from other channel, and it can not surpass the physical channel or the transmission power limit of assigning.

In allowing combination of sets, the absolute or relevant priority multitask of definable rule is to keep suitable prioritization between MAC-d stream (and/or logic channel).According to absolute priority mechanism, the logic channel of higher-priority or MAC-d stream is always serviced before than the logic channel of low priority or MAC-d stream, and selected multitask combination is to support to gather interior highest priority data for the TFs of EU TrCH definition.

Perhaps, the logic channel or the combination of MAC-d stream of being disposed by the RRC signalling procedure can be better than absolute priority, the configurable logic channel or the permission combination of MAC-d stream in a MAC-e PDU of this RRC signal procedure, but core network is data of description size or the quantity of MAC-d PDUs also, and it allows to flow multitask to each MAC-e PDU by each logic channel or MAC-d.

According to relative priority mechanism, one weight mechanism is described so that suitably serve the low priority channel, it is each MAC-d stream (and/or logic channel) definition one weight, and the effective frequency range on E-DCH is given each logic channel or MAC-d stream according to the weight allocation of definition.The method allows data transfer rate to distribute on logic channel or corresponding MAC-d stream, and avoids the frequency range hunger (starvation) of low priority channel.

Allow combination of sets to be sent by the RRC program clearly, this RRC configuration allows this RNC control WTRU multitask to select, and it is unique to radio access bearer (RAB) demand.The specific permission combining and configuring of logic channel or MAC-d stream is with in each MAC-e PDU multitasking.

In each EU TTI, WTRU monitors the state that MAC-d stream (and/or logic channel) allows combination continuously, and selects a suitable transmission combination according to monitor state.If the transmit power needs of a particular combinations surpasses the dump power demand of permission WTRU E-DCH transmission,, and should combination can be blocked by the E-TFC selection just then this combination is in a power in excess state.May need several E-DCH TTIs the launch time of detecting and blocking MAC-d stream (and/or logic channel) combination.When transmitting power is enough, has a similar mechanism and be incorporated into this permission combination of sets in order to give back this.

Be that convenient WTRU is in some MAC-d stream (and/or logic channel) combination that the transmission power limit state also can not block transmission, also can be defined to avoid the blockade of any MAC-d stream (and/or logic channel), under need not assigning, also can allow the transmission of these combinations from the EU channel of Node B.Because an EU TrCH is only arranged, and the TFCs collection of a plurality of TrCHs of undefined correspondence, only be TFs table of single EU TrCH definition, therefore need be in minimum centralized definition MAC-d stream (and/or logic channel) combination, this minimal set can not be blocked.For instance, E-DCH minimal set definable always makes can be from any MAC-d stream or logical tone as at least one MAC-d PDU of transmission, promptly convenient E-DCH can with this dump power be limited.

In order to can comprise the combination of every MAC-d stream (and/or logic channel) in every TTI multitask MAC-d stream (and/or logic channel) to MAC-e PDUs rule, it comprises the I load of a logic channel or MAC-d stream, and video to other logic channel of EU TrCH or MAC-d stream and do not have data, these combination of sets may be defined as minimal set, this can be a signal and sends radio bearer, to guarantee that signal is sent to this Node B in a Power Limitation state.

Under existing 3GPP standard, TFC is that a TrCH is given in configuration, and it is provided in CCTrCH, and minimum on the TrCH may be transmitted and other TrCHs does not have transfer of data, and these TFCs always are allowed to transmit to avoid blocking the possibility of separate channel.Only there is being a TrCH to support that aspect the EU of many logic channels or MAC-d stream, single a reservations TFC is not enough, concerning EU TrCH, needs several EU TFs or the TFCs minimal set to support that multitask is made up.EU TF or TFC comprise the minimum possibility load transmission configuration that allows a logic channel or MAC-d stream.

When WTRU is in the power-limiting state, its with this EU traffic load be reduced to the EU channel that is received from Node B assign allow down, the indication of power-limiting state just can be passed to this Node B with this EU.This indication can send message (for example new information assembly) by a signal clearly and send, and this WTRU can be for the grade of this WTRU ERP.

Node B can not have this WTRU of misinterpretation and whether is in a Power Limitation state, and this Node B can detect this WTRU Power Limitation state by channel assignment that relatively is sent to this WTRU and the correspondence transmission that is received from WTRU.Surpass transmission if this channel is assigned, and WTRU continues on the speed that reduces transmission or indicate it to have more multidata needs to send, just then this Node B detects this WTRU Power Limitation state and takes suitable moving.

Figure 2 shows that according to program 200 flow charts of the utility model in order to the EU multitasking.One WTRu is configured to support the EU transmission by a single EU TrCH.At first define the permission combination of sets of one group of MAC-d stream (and/or logic channel) for each WTRU, it allows multitasking to MAC-e PDU (step 202).The transmission data are handled at rlc layer by at least one RLC entity, and transfer to a MAC-d entity (step 204) via at least one logic channel.These transmission data are videoed on a MAC-d entity to one or more MAC-d stream (step 206), and each MAC-d stream is associated with specific QoS attribute.From allow combination of sets, select the combination (step 208) of a kind of MAC-d stream (and/or logic channel).From the data based selected combination multitasking of this MAC-d stream to MAC-e PDUs (step 210).This MAC-e PDU transfers to physical layer to carry out physical layer process (step 212) via an EUTrCH.

Figure 3 shows that this entity comprises the mac function except that control signal according to the embodiment calcspar of WTRU MAC-e entity 1-6 of the present utility model.Figure 3 shows that three function squares, yet configuration shown in Figure 3 provides as example, and should be noted that and not break away from other configuration of enforcement under the technology of the present utility model, this function square can or separate with more or less function combinations of blocks, the order of function square also can different order change, and this function square can be carried out simultaneously or in proper order.

Enter the first function square 1061 of this MAC-e entity 106 from the data of the corresponding MAC-d stream of logic channel meeting, this first function square 1061 is from the permission combination of MAC-d stream (and/or logic channel), and decision MAC-d flows the subclass of (and/or logic channel) combination.Optionally, this first function square 1061 can be according to the possible speed of each MAC-d stream (and/or logic channel) of RRC configuration decision.

The second function square 1062 is the subclass decision effective power and the E-TFCs of MAC-d stream (and/or logic channel) combination, and the effective power of E-DCH also can be a configuration parameters.Optionally, the second function square 1062 can decide this E-TFC based on the combination minimal set that can not be blocked transmission.

The 3rd function square 1063 produces MAC-e PDUs with multitasking MAC-d stream according to a pre-set criteria, and for example configuration logic channel or MAC-d stream priority is with maximization transmission highest priority data.

Although feature of the present utility model and assembly are all described in the particular combinations mode in embodiment, but each feature or assembly can use alone among the embodiment, and do not need further feature or combination of components with better embodiment, or with/do not do various combination with further feature of the present utility model and assembly.

Claims (5)

1. carry out the wireless transmitter/receiver unit that strengthens the cochain multitask for one kind, it is characterized in that comprising:
(a) a wireless link key-course;
(b) a special channel media access control entity is connected to this wireless link key-course;
(c) one strengthens cochain medium accesses controlled entity, be connected to this special channel media access control entity, in order to from a combination that allows to select the combination of sets special channel media access control stream, and flow to a protocol Data Unit that strengthens the control of cochain medium accesses according to selected this special channel media access control of special channel media access control stream combination multitasking; And
(d) physical entity is connected to this enhancing cochain medium accesses controlled entity.
2. implementation as claimed in claim 1 strengthens the wireless transmitter/receiver unit of cochain multitask, it is characterized in that this wireless link key-course comprises one or more wireless link controlled entity, and whenever this entity is relevant with a Dedicated Control Channel.
3. implementation as claimed in claim 1 strengthens the wireless transmitter/receiver unit of cochain multitask, it is characterized in that this wireless link key-course comprises one or more wireless link controlled entity, and whenever this entity is relevant with a special flow channel.
4. implementation as claimed in claim 1 strengthens the wireless transmitter/receiver unit of cochain multitask, it is characterized in that this special channel media access control entity comprises:
(c1) multi-task unit; And
(c2) the transport format combination selection unit of an enhancing cochain.
5. implementation as claimed in claim 1 strengthens the wireless transmitter/receiver unit of cochain multitask, it is characterized in that this special channel media access control entity and this enhancing cochain medium accesses controlled entity are to be positioned at a single one physical entity.
CNU2005201128174U 2004-07-19 2005-07-18 Radio transmitting/receiving unit of carrying out reinforced upper chain multiple tasks CN2857338Y (en)

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US58896004P true 2004-07-19 2004-07-19
US60/588,960 2004-07-19
US11/113,763 2005-04-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101809917A (en) * 2007-09-28 2010-08-18 交互数字专利控股公司 Method and apparatus for selecting a radio link control protocol data unit size
US9059875B2 (en) 2007-09-28 2015-06-16 Interdigital Patent Holdings, Inc. Method and apparatus for creating an enhanced medium access control packet data unit for enhanced transport format combination selection in wireless communications
US9655090B2 (en) 2009-04-24 2017-05-16 Interdigital Patent Holdings, Inc. Method and apparatus for generating a radio link control protocol data unit for multi-carrier operation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100563592B1 (en) * 1998-10-01 2006-09-22 엘지전자 주식회사 method for branching data in the 3rd generation mobile communication system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101809917A (en) * 2007-09-28 2010-08-18 交互数字专利控股公司 Method and apparatus for selecting a radio link control protocol data unit size
CN101809917B (en) * 2007-09-28 2013-10-09 交互数字专利控股公司 Method and apparatus for selecting a radio link control protocol data unit size
US8879534B2 (en) 2007-09-28 2014-11-04 Interdigital Patent Holdings, Inc. Method and apparatus for selecting a radio link control protocol data unit size
US9059875B2 (en) 2007-09-28 2015-06-16 Interdigital Patent Holdings, Inc. Method and apparatus for creating an enhanced medium access control packet data unit for enhanced transport format combination selection in wireless communications
US9078158B2 (en) 2007-09-28 2015-07-07 Interdigital Patent Holdings, Inc. Method and apparatus for generating radio link control protocol data units
US9609548B2 (en) 2007-09-28 2017-03-28 Interdigital Patent Holdings, Inc. Method and apparatus for selecting a radio link control protocol data unit size
US9655090B2 (en) 2009-04-24 2017-05-16 Interdigital Patent Holdings, Inc. Method and apparatus for generating a radio link control protocol data unit for multi-carrier operation

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NO20151760L (en) 2007-04-12

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