CN200983594Y

CN200983594Y - Wireless transmission/receiving unit, communication node B and wireless network controller

Info

Publication number: CN200983594Y
Application number: CNU2005200181605U
Authority: CN
Inventors: S·E·泰利; 张国栋; S·G·迪克
Original assignee: InterDigital Technology Corp
Current assignee: InterDigital Technology Corp
Priority date: 2004-05-07
Filing date: 2005-05-08
Publication date: 2007-11-28
Anticipated expiration: 2015-05-08
Also published as: CN1951029B; CN1951029A

Abstract

A medium access control (MAC) layer architecture and functionality for supporting enhanced uplink (EU). A MAC entity for EU, (i.e., a MAC-e entity), is incorporated into a wireless transmit/receive unit (WTRU), a Node-B and a radio network controller (RNC). The WTRU MAC-e handles hybrid-automatic repeat request (H-ARQ) transmissions and retransmissions, priority handling, MAC-e multiplexing, and transport format combination (TFC) selection. The Node-B MAC-e entity handles H-ARQ transmissions and retransmissions, E-DCH scheduling and MAC-e de-multiplexing. The RNC MAC-e entity provides in-sequence delivery and handles combining of data from different Node-Bs.

Description

Wireless transmission/receive unit, the Node B that communicates with and radio network controller

Technical field

The utility model relates to a radio communication device, a wireless transmission/receive unit (WTRU) of for example communicating by letter with a Node B.The utility model is particularly related in wireless communication system, in order to support medium access control (MAC) the layer structure and the function of enhanced uplink (EU).

Background technology

In order to improve the method in up link covering, production capacity and propagation delay time, in third generation partner program (3GPP) the 6th edition (R6), possess some special knowledge now.In order successfully to carry out these methods, the scheduling of UL physical resource and assignment will move to a Node B from a radio network controller (RNC), making that Node B is made decision on the short distance basis and managed the UL Radio Resource can be more efficient than RNC, even if RNC keeps the integral body control to this Node B.

Share in the time slot one, can handle one or more independently UL transmission on enhancing dedicated channel (E-DCH), this enhancing dedicated channel (E-DCH) is between this WTRU and a global system for mobile communications (UMTS) terrestrial radio access network (UTRAN).One of them example is a MAC layer mixed automatic repeat request (H-ARQ), or simple mac layer ARQ operation, and wherein each single transmission may need the transmission again of varying number successfully to be received by this UTRAN.

The utility model content

The purpose of this utility model provides a kind of device with media access control layer structure of supporting enhanced uplink, and uplink radio resources can be used more efficient and more neatly thus.

The utility model relates to a kind of wireless transmission/receive unit, it is communicated by letter with a Node B, this wireless transmission/receive unit comprises: one rate request/assignment device, in order to send a rate request to this Node B, transmit data so that strengthen dedicated channel, and handle a speed that is received from this Node B and authorize in order to speed of response request via one; One priority treatment device, it is electrically connected to this rate request/assignment device, and this priority treatment device is managed the assignment and a mixed automatic repeat request program of these data according to the priority of the data that will transmit; One transport format combination selection device, it is electrically connected to this priority treatment device, and this transport format combination selection device is in order to select a transformat combination of these data; And a mixed automatic repeat request device, it is electrically connected to this transport format combination selection device, and this mixed automatic repeat request is transmitted these data again according to the transmission feedback again from this Node B.

The utility model also provides a Node B, and it is communicated by letter with a wireless transmission/receive unit, and this Node B comprises the medium access control device that is full of an enhanced uplink, it is characterized in that, the medium access control device of this enhanced uplink comprises:

One scheduler, in order to management enhancing dedicated channel resource between the wireless transmission/receive unit in a unit, and the mixed automatic repeat request device of a wireless transmission/receive unit, and receive rate request, and respond this rate request and send a speed and grant to a wireless transmission/receive unit from a wireless transmission/receive unit;

One demultiplexer is in order to separate multiplexed processing to communicating protocol data unit; And

One mixed automatic repeat request device, it is electrically connected to this scheduler and this demultiplexer, and this mixed automatic repeat request device response is fed back and produce and send a transmission from the enhancing dedicated channel transmission of this wireless transmission/receive unit.

The utility model also provides one and a wireless transmission/receive unit nodes in communication B, and this Node B comprises the medium access control device of enhanced uplink, it is characterized in that, the medium access control device of this enhanced uplink comprises:

One controller, it is in order to receiving the rate request from a wireless transmission/receive unit, and sends a speed that is produced by a scheduler and authorize, in order to management enhancing dedicated channel resource between wireless transmission/receive unit in a unit;

One demultiplexer, it is in order to separate multiplexed processing to communicating protocol data unit; And

One mixed automatic repeat request device, it is electrically connected to this controller and this demultiplexer, and this mixed automatic repeat request device is in order to produce and to send a transmission feedback, with the enhancing dedicated channel transmission of response from this wireless transmission/receive unit.

In addition, the utility model also provides a kind of radio network controller, it is characterized in that, this radio network controller comprises:

One receiver, it is in order to the received communication protocol Data Unit, and each communicating protocol data unit has a transmission sequence number; And

One reordering apparatus is in order to this communicating protocol data unit of resequencing according to its transmission sequence number.

The utility model relates to a kind of WTRU, and it is communicated by letter with a Node B, and this WTRU has one in order to support that EU's improves MAC layer structure and function.The new EU mac device of this MAC-e of being called device is definition and is integrated in a WTRU, a Node B and the RNC.This WTRU MAC-e is responsible for handling the selection of H-ARQ transmission and transmission again, priority treatment, the multiplexed transmission of MAC-e and transformat combination (TFC).This Node B MAC-e device is responsible for handling H-ARQ transmission and is transmitted again, strengthens that dedicated channel (E-DCH) is dispatched and MAC-e separates multiplexed transmission.This RNC MAC-e device then provides in proper order and transmits, and is responsible for handling the data combination from different nodes B.

This WTRU MAC-e comprises an EU rate request/assignment device, a priority treatment device, a TFC choice device and a H-ARQ device.This EU rate request/assignment device is sent rate request to a Node B, in order to authorize by the speed that this Node B received via E-DCH transmission data and processing, the assignment of these these data of priority treatment device management and according to a H-ARQ program of the priority of these data that will be transmitted, this TFC choice device is selected a TFC of these data, and this H-ARQ device transmits these data again according to the transmission feedback from this Node B.This Node B MAC-e comprises a scheduler, a demultiplexer and a H-ARQ device.

Thereby can support the 26S Proteasome Structure and Function of medium access control (MAC) layer of enhanced uplink (EU), improve up link covering, production capacity and propagation delay time, and obtained uplink radio resources can more efficient and beneficial technical effects that more applied in a flexible way.

Description of drawings

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

Fig. 1 is the block diagram according to wireless communication system of the present utility model;

Fig. 2 is the block diagram according to the comnnnication protocol structure of WTRU of the present utility model;

Fig. 3 is the block diagram according to MAC-e structure in the WTRU of the present utility model;

Fig. 4 is the block diagram according to MAC-e structure in the Node B of the present utility model; And

Fig. 5 is according between WTRU of the present utility model and the Node B, the block diagram of the MAC-e structure of WTRU and Node B and signal processing.

Embodiment

After this, proprietary term " WTRU " comprises but any type of device that is not limited to a subscriber equipment (UE), a mobile radio station, a fixing or moving user unit, a calling set or can operates 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 site controller, an access point or the interface arrangement of any kind under wireless environment.

Feature of the present utility model can be integrated into an integrated circuit (IC), or is configured on the circuit that comprises many interconnecting assemblies.

Fig. 1 is the block diagram according to a wireless communication system 10 of the present utility model, and this system 10 comprises a WTRU 100, a Node B 200 and a RNC 300.This RNC 300 controls whole EU running by the EU parameter that disposes this Node B 200 and this WTRU 100, for example initial transmission power grade, maximum allow the available channel resources of EU through-put power or every Node B, between this WTRU 100 and this Node B 200, set up an E-DCH 102 to support the EU transmission.

About E-DCH transmission aspect, this WTRU 100 sends a rate request to this Node B 200 via a UL EU signaling channel 104.Work is in response, and this Node B 200 is sent a speed via a down link (DL) EU signaling channel 106 and granted to this WTRU 100.After the EU radio-resource-configuration was given this WTRU 100, this WTRU 100 can be via these E-DCH 102 transmission E-DCH data.For responding this E-DCH transmission, this Node B is sent affirmation (ACK) message or non-affirmation (NACK) message of H-ARQ running via this DL EU signaling channel 106, this Node B 200 also can respond this E-DCH transfer of data, authorizes response this WTRU 100 with speed.

Fig. 2 is the comnnnication protocol structure block diagram according to E-DCH 102 of the present utility model.A kind of new EU mac device that is called MAC-e of design in this WTRU 100, this Node B 200 and this RNC 300 is to handle all about the function of E-DCH transmission and reception.One MAC-e device 120 is integrated into this WTRU 100, and this WTRU is between a MAC-d device 130 and a physical layer (PHY) device 110.This MAC-e 120 in this WTRU handles H-ARQ transmission and transmission again, priority treatment, MAC-e is multiplexed and TFC selects.One MAC-e device 220 is integrated into this Node B 200, and it handles the H-ARQ transmission and transmission again, E-DCH scheduling and MAC-e separate multiplexed.One MAC-e device 320 is integrated into this RNC300, so that the data combination of sending in proper order and handling from different nodes B is provided.

Fig. 3 is that this WTRU MAC-e 120 comprises an EU rate request/assignment device 122, a priority treatment device 124, a TFC choice device 126 and a H-ARQ device 128 according to the block diagram of MAC-e 120 structures in the WTRU 100 of the present utility model.It should be noted that Fig. 3 is provided as a preferred embodiment of the present utility model, and device shown in Figure 3 can be integrated into one and share the MAC functional device, and a plurality of function can be performed by functional device more or less.

When this WTRU 100 has the E-DCH data to wait via this E-DCH 102 transmission, this EU rate request/assignment device 122 is responsible for to this Node B 200 request Radio Resources, this EU rate request can be following one of them: the flux capacity of a flow Volume Indicator, a requested data rate, a TFC index and each data flow is measured (TVM) quantity.This rate request can be delivered to Node B 200 via physical layer or MAC layer signal, rate request is based on Radio Link control (RLC) data TVM and produces, this TVM can comprise the flux capacity of the data of E-DCH transmission, or optionally more comprises the initiatively data of H-ARQ program of tool that wait transmits again.

When receiving a speed by this Node B 200 (WTRU may authorize by receiving speed above a Node B), this WTRU 100 authorizes (that is speed and/or time scheduling), this EU rate request/assignment device 122 can be notified this priority treatment device 124, there is available resource to use for this transfer of data, the speed of this reception is authorized the subclass that can judge this E-DCH transmission format composite set (TFCS), and/or zero-time and duration (optionally).

By sending this rate request, this WTRU 100 can require this Node B 200 to change the set of the permission UL TFC in this TFCS, and this Node B 200 can authorize by sending this speed, changes the permission UL TFC in this TFCS.This WTRU 100 can send a schedule information and be updated to this Node B 200, to provide buffering area to occupy and/or available transmission power information, so that the dispatching device 222 in this Node B 200 can determine suitable TFCS indicating device and transmission time gap.In order to dispatch with fast velocity by Sustainable Control, this Node B 200 can be sent parameter, and this parameter is represented this patient effective interference of system, thereby makes WTRU under the rate controlled pattern away from the extra interference of importing into.Finishing of the method can be passed through this Node B 200, sends the permission through-put power of the EU transmission that 100 of this WTRU can use in this speed is authorized.

This priority treatment device 124 can be according to the priority of these data, and the assignment of management traffic and H-ARQ program based on the transmission feedback of coming autocorrelative DL EU signal, can determine a new transmission or a transmission again.In addition, a formation of each Medium Access Control (MAC) Protocol Data Unit (PDU) identification (ID) and transmission sequence number (TSN) also can determine.This TSN is unique to each priority level in an E-DCH, and each new data block just increment is once.Selectable, this priority treatment device 124 can be inserted in before low priority data transmits again, one new transmission of higher-priority data can be activated at any time with the support priority treatment, rather than waits for the transmission again of being untreated of low priority data.

According to the information that is sent among authorizing in this speed, a TFC of the data that these TFC choice device 126 meeting selections will be transmitted on this E-DCH 102, and multiplexed a plurality of MAC-d flows to a MAC-e PDU.This speed is authorized and can definitely be authorized or authorize relatively, definitely authorizes the absolute limitations of the maximum that the UL resource that this WTRU may use is provided, and authorizing relatively then with respect to use value last time increases and reduce resource limit.

It is to be subject to maximum permission through-put power that this TFC selects, and authorizes the corresponding TFCS subclass that is allowed from the speed of this Node B 200.TFCS selects to be based on bgical channel priority power, and making that this TFC selects can be with the transmission maximization of high priority data, the allowing to be combined in when this TFC selects and also be considered of this MAC-d stream among a MAC-e PDU, and this combination is disposed by this RNC.

This H-ARQ device 128 is handled all needs the work of H-ARQ communication protocol, and this H-ARQ device 128 is responsible for storing the MAC-e load and transmit them again when bust this.This H-ARQ device 128 can be supported a plurality of examples (H-ARQ program) of this H-ARQ communication protocol, and the EU that is disposed in this WTRU 100 has the H-ARQ program more than.

According to the utility model, preferably carry out a synchronous H-ARQ, so the H-ARQ running is based on synchronous DL ACK and NACK and transmission again synchronously among this UL.

Fig. 4 is the block diagram according to MAC-e 220 structures in the Node B 200 of the present utility model.This Node B MAC-e 220 comprises a scheduler 222, a demultiplexer 224 and a H-ARQ device 226.In this Node B, be preferably each WTRU one MAC-e device 220 is provided, and be preferably each unit one scheduler is provided, E-DCH element resources between this scheduler 222 management WTRU.

E-DCH resource and H-ARQ program between this scheduler 222 management WTRU.Based on rate request from WTRU 100, this scheduler 222 produces speed and authorizes, and give WTRU 100 with it via DL EU signaling channel 106, this speed is provided by the TFC set that provides information may select with decision WTRU 100, and indicates a WTRU to be allowed to be used for carrying out the maximum resource amount of E-DCH transmission.This scheduler 222 is controlled on the corresponding EU signaling channel, the transmission that the reception of rate request and speed are authorized.Select as another kind, a separate control means (not shown) can be provided in Node B MAC-e 220, authorize in order to receive this rate request and to transmit this speed, and this scheduler 222 just can provide outside this Node B MAC-e 220.

This demultiplexer 224 is separated the multiplexed MAC-d of becoming PDU with MAC-e PDU, MAC-d flow to being multiplexed in this WTRU 100 of MAC-e PDU and is supported, multiple MAC-d stream can be configured to a WTRU, and can be by multiplexed in same MAC-e PDU.Combination by these RNC 300 configuration MAC-d streams can be multiplexed in a MAC-e PDU.The MAC-e PDU of this multiplexed processing separates the multiplexed MAC-d of becoming stream by this demultiplexer 224, and this Node B is separated multiplexed processing can cause MAC-d or RLC PDU rearrangement, and MAC-e PDU rearrangement can be carried out by this RNC 300.

Rearrangement can be carried out in this Node B MAC-e, the quantity of this H-ARQ program as can be known therein, or in this RNC MAC-e, carry out.Get back to Fig. 2, this RNC MAC-e 320 comprises a reordering apparatus, in order to the MAC-e PDU according to the transmission sequence number that is received (TSN) rearrangement reception.MAC-e PDU with continuous T SN is transferred into analytic function, and the PDU with the low TSN of an error rate then can not be transferred into this analytic function, and this analytic function can remove this MAC-e gauge outfit before it is delivered to higher level.This RNC 300 comprises a plurality of rearrangement formations, has the PDU of different priority levels in order to rearrangement.

When rearrangement is to carry out in this RNC MAC-e, this Node B 200 with the data passes of this H-ARQ program number and decoding success to this RNC 300, this H-ARQ program also can be passed to this RNC time of reception and be known undoubtedly by Node B, this H-ARQ program number can by a System Frame Number (SFN) or a Connection Frame Number (CFN) and in this WTRU 100 H-ARQ application configuration scheme obtained.

This H-ARQ device 226 produces ACK and NACK, and with the transmit mode of indication E-DCH transmission, a H-ARQ device can be supported a plurality of examples of stopping and waiting for H-ARQ communication protocol.

Fig. 5 be according to the utility model between this WTRU 100 and this Node B 200, the MAC-e block diagram of WTRU100 and Node B 200 accompaniment signal programs.When this WTRU MAC-e120 receives (step 502) will be via the data of an E-DCH 102 transmission the time by WTRU rlc layer 140, this EU rate request device 122 is sent a rate request to this Node B 200 (step 504), and this Node B 200 is authorized response (step 506) with a speed.In case receiving this speed authorizes, there is available radio resources these EU rate request device 122 notice priority treatment unit 124 for this transfer of data (step 508), these data of multiplexed processing are followed in this priority treatment unit 124, and assign a H-ARQ program according to the priority of these data, and the TFC of these data can be by this TFC choice device selected (step 510,512), and these data can be via the H-ARQ program transmission (step 514) of this E-DCH102 with this assignment.This Node B 200 is sent a feedback signal (step 516) by DL EU signaling channel 106, if this feedback signal is to be a NACK, then these data can independently be transmitted (step 518) again, or receive other speed authorize after again the transmission (step 520).

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

Although the utility model is described by preferred embodiment, to those skilled in the art, it is conspicuous can doing various variations in desorption claim scope of the present utility model not.

Claims

1. wireless transmission/receive unit, it is communicated by letter with a Node B, it is characterized in that, and this wireless transmission/receive unit comprises:

One rate request/assignment device in order to send a rate request to this Node B, is transmitted data so that strengthen dedicated channel via one, and is handled a speed that is received from this Node B and authorize in order to speed of response request;

One priority treatment device, it is electrically connected to this rate request/assignment device, and this priority treatment device is managed the assignment and a mixed automatic repeat request program of these data according to the priority of the data that will transmit;

One transport format combination selection device, it is electrically connected to this priority treatment device, and this transport format combination selection device is in order to select a transformat combination of these data; And

One mixed automatic repeat request device, it is electrically connected to this transport format combination selection device, and this mixed automatic repeat request is transmitted these data again according to the transmission feedback again from this Node B.

2. wireless transmission/receive unit as claimed in claim 1, wherein this rate request/assignment device is that one of them the form that flux capacity by a flow Volume Indicator, a requested data rate, a transport format combination index and each data is measured quantity sends this rate request.

3. wireless transmission/receive unit as claimed in claim 1, wherein this rate request/assignment device is to transmit this rate request via physical layer signal.

4. wireless transmission/receive unit as claimed in claim 1, wherein this rate request/assignment device is to transmit this rate request via the media access control layer signal.

5. wireless transmission/receive unit as claimed in claim 1, wherein this rate request/assignment device is by considering that the Radio Link capacity of controlling the data flows decides this rate request.

6. wireless transmission/receive unit as claimed in claim 5, wherein this rate request/assignment device waits for that by considering a data capacity transmission decides this rate request again in this mixed automatic repeat request program.

7. wireless transmission/receive unit as claimed in claim 1, wherein this rate request/assignment device is to authorize the one at least that decision strengthens dedicated channel transport format composite set subclass and strengthens the zero-time of dedicated channel transmission from this speed.

8. wireless transmission/receive unit as claimed in claim 7, wherein this rate request/assignment device is the duration of authorizing this enhancing dedicated channel transmission of decision from this speed.

9. wireless transmission/receive unit as claimed in claim 1, wherein this transport format combination choice device is according to a maximum through-put power that allows, and selects this transformat combination by the one at least that this speed is authorized a corresponding transmission format composite set subclass that is allowed.

10. wireless transmission/receive unit as claimed in claim 1, wherein this priority treatment device is in order to assign data flow in a notice back that receives from this rate request/assignment device.

11. wireless transmission/receive unit as claimed in claim 1, wherein this priority treatment device is in order to a new transmission of higher-priority data is jumped the queue than a transmission again of low priority data.

12. wireless transmission/receive unit as claimed in claim 1, wherein this mixed automatic repeat request device is in order to not need the not transmission again of the data of success transmission of transmission again independently under the further rate request.

13. wireless transmission/receive unit as claimed in claim 1, wherein this mixed automatic repeat request device is in order to transmit the not data of success transmission again after transmission ground speed is authorized again with receiving another data.

14. wireless transmission/receive unit as claimed in claim 1, wherein this rate request/assignment device be in order to meeting send about buffering area take and available transmission power information one of them gives this Node B at least.

15. wireless transmission/receive unit as claimed in claim 1, wherein the transmission of this feedback and be transmitted in this wireless transmission/receive unit again and this Node B in can be synchronously.

16. wireless transmission/receive unit as claimed in claim 1, wherein to authorize be one definitely to authorize to this speed, and it provides an absolute limitations of the maximum quantity of the spendable uplink resource of this wireless transmission/receive unit.

17. wireless transmission/receive unit as claimed in claim 1, wherein to authorize be one to authorize relatively to this speed, and it is that more previous employed value is to increase or to reduce this resource limit.

18. a Node B, it is communicated by letter with a wireless transmission/receive unit, and this Node B comprises the medium access control device that is full of an enhanced uplink, it is characterized in that, the medium access control device of this enhanced uplink comprises:

19. Node B as claimed in claim 18, wherein this demultiplexer is in order to carry out the rearrangement of dedicated channel communications protocol Data Unit.

20. Node B as claimed in claim 18, wherein this demultiplexer is in order to carry out the rearrangement of Radio Link control communicating protocol data unit.

21. Node B as claimed in claim 18, wherein this scheduler is not to handle in order to execution priority.

22. Node B as claimed in claim 18 comprises a plurality of medium access control devices, wherein each medium access control device provides to each wireless transmission/receive unit.

23. Node B as claimed in claim 22, wherein this scheduler is the enhancing dedicated channel resource in order to management wireless transmission/receive unit in a unit.

24. one and a wireless transmission/receive unit nodes in communication B, this Node B comprises the medium access control device of enhanced uplink, it is characterized in that, the medium access control device of this enhanced uplink comprises:

25. a radio network controller is characterized in that, this radio network controller comprises:

26. radio network controller as claimed in claim 25 further comprises a plurality of rearrangement formations, in order to the communicating protocol data unit of the different priority levels of rearrangement tool.