WO2006053495A1 - Procede de transmission - Google Patents

Procede de transmission Download PDF

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Publication number
WO2006053495A1
WO2006053495A1 PCT/CN2005/001936 CN2005001936W WO2006053495A1 WO 2006053495 A1 WO2006053495 A1 WO 2006053495A1 CN 2005001936 W CN2005001936 W CN 2005001936W WO 2006053495 A1 WO2006053495 A1 WO 2006053495A1
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WO
WIPO (PCT)
Prior art keywords
mac
signaling
pdu
qos
data
Prior art date
Application number
PCT/CN2005/001936
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English (en)
Chinese (zh)
Inventor
Gaoke Du
Xiaoqiang Li
Gert-Jan Van Lieshout
Original Assignee
Beijing Samsung Telecom R & D Center
Samsung Electronics Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Beijing Samsung Telecom R & D Center, Samsung Electronics Co., Ltd. filed Critical Beijing Samsung Telecom R & D Center
Publication of WO2006053495A1 publication Critical patent/WO2006053495A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to third generation mobile communications, and more particularly to a method of transmission of MAC-e signaling. Background technique
  • the second generation mobile communication system includes GSM (Global System for Mobile Communications) and IS (Interim Standard) - 95, and the main objective is to provide voice services.
  • GSM Global System for Mobile Communications
  • IS Interim Standard
  • GSM uses TDMA (Time Division Multiple Access) technology, which was commercialized in 1992 and is mainly used in Europe and China.
  • the IS-95 uses code division multiple access technology, mainly used in the United States and South Korea.
  • the third generation mobile communication system includes an asynchronous CDMA system (or WCDMA system, or UMTS) studied by the International Organization for Standardization of 3GPP (3 Id Generation Project Partnership), that is, the timing between the base stations is asynchronous, and 3GPP2 (3 Generation) Project Partnership 2)
  • the Synchronous CDMA System (or CDMA2000) studied by the International Organization for Standardization, that is, the timing between the base stations is the same.
  • Both synchronous and asynchronous third-generation mobile communication systems are standardizing on providing high-rate, high-quality data packet services.
  • 3GPP standardizes HSDPA (High Speed Downlink Access) to increase the downlink data rate
  • 3GPP2 also standardizes lxEV-DV (Evolution-Data and Voice).
  • 3GPP continues the enhancement of uplink packet data transmission (EUDCH) to improve uplink capacity and coverage.
  • the EUDCH introduces a HARQ (Hybrid Automatic Repeat Request) mechanism compared to the uplink DCH of Rel99/4/5, and is considering using a TTI (Transmission Time Interval) shorter than the uplink DCH of Rel99/4/5, for example with HSDPA - like 2ms.
  • HARQ Hybrid Automatic Repeat Request
  • E-DCH enhanced dedicated physical data channel
  • E-DPCCH enhanced dedicated physical control channel
  • Figure 4 shows the types of all physical channels after the introduction of the EUDCH. It includes the Dedicated Physical Control Channel (DPCCH) in Rel99, the Dedicated Physical Data Channel (DPDCH), and the Uplink Dedicated Physical Control Channel HS-DPCCH for HSDPA in Rel5, and the addition of E-DPDCH and E- after the introduction of EUDCH. DPCCH.
  • E-DPDCH is used to transmit data from the E-DCH transport channel
  • E-DPCCH is used to transmit control information for E-DPDCH decoding, such as E-TFI (large packet size) Small and transport format), scheduling information, HARQ information (such as receiving sequence number RSN).
  • E-TFI large packet size
  • RSN receiving sequence number
  • EUDCH Similar to HSDPA, in order to support the introduced HARQ technology, EUDCH also adds new entities at the MAC layer, see Figure 1. In the UE and Node B, the new MAC entity is called MAC-e, and the entity added on R C is called MAC-es.
  • the channel between the MAC-e and the physical layer is the newly defined E-DCH transport channel, and the data packet in the E-DCH is called MAC-e PDU.
  • the channel between the MAC-e and MAC-d entities is C-d Flow.
  • the data packet transmitted in the MAC-d Flow is a MAC-d PDU.
  • the main function of the UE-side MAC-e entity is: according to the scheduling command of the Node B and the available transmit power of the current UE, determine the size of the transmitted packet MAC-e PDU, and then select the appropriate number of MAC-d PDUs to load into In a MAC-e PDU, and sent to the physical layer for data transmission.
  • Another main function is to decide whether to retransmit the previously transmitted MAC-e PDU, that is, the HARQ function bear, based on the feedback of the Node B, the QoS requirements of the MAC-e PDU, and the like. While transmitting data, some state information about the UE is also encapsulated in the MAC-e PDU with the MAC-d PDU.
  • the status information about the UE is, the currently available transmit power, the amount of data to be sent in the memory, etc., which are all useful reference information for Node B scheduling. Since this information is transmitted through the MAC-e PDU and terminated at the MAC layer of the Node B, it is called MAC-e signaling (hereinafter referred to as MAC-e Signalling).
  • the main function of the MAC-e entity of the Node B is to generate an ACK/NACK according to whether the MAC-e PDU sent by the UE is successfully received or not.
  • the MAC-e PDU is successfully received, the MAC-e Signalling information is parsed, the data rate of the UE is scheduled (generating a scheduling command), and the data other than the MAC-e Signalling and the padding bits are removed from the MAC-e Payload.
  • the main function of the RNC's MAC-es entity is to sort the received data.
  • a MAC-e PDU consists of a MAC-e Header and a MAC-e Payload.
  • the MAC-e Header indicates the data structure of the subsequent MAC-e Payload.
  • MAC-e Payload consists of MAC-e Signalling, one or more MAC-d PDUs, and some padding bits (Padding).
  • MAC-e Signalling is the aforementioned UE status information useful for the scheduling of Node B. However, MAC-e Signalling is not included in every MAC-e PDU. It is only transmitted according to scheduling needs and when needed.
  • the MAC-e Header can indicate whether MAC-e?&710&(1 contains 0 Signalling information.
  • the MAC-d PDU is the main content of MAC-e Payload, which is a packet from some MAC-d Flow. The bit is used for padding only when all the information of the current face cannot constitute the length of a specified Ce PDU. It can also be seen from Figure 2 that MAC-d PDUs with different QoS attributes can be encapsulated in the same MAC-e PDU. Just because the MAC-e PDU may contain MAC-d PDUs with different QoS attributes, there must be a way to determine the QoS attributes of the entire MAC-e PDU.
  • the MAC-e PDU contains the case of MAC-e Signaling.
  • the specific description of the method is: When a MAC-e PDU contains only one MAC-d PDU of QoS attribute, the QoS is the QoS of the entire MAC-e PDU; when a MAC-e PDU contains multiple QoS attributes For different MAC_d PDUs, the QoS of the entire MAC-e PDU is the QoS of all MAC-d PDUs, requiring the most stringent QoS.
  • the QoS mentioned here mainly contains two attributes, one is the power offset (Power 0££361: abbreviated as 0), and the other is the maximum number of retransmissions.
  • UTRAN configures QoS attributes for each MAC-d Flow.
  • the QoS of a MAC-d PDU is the QoS attribute of the MAC-d Flow to which it belongs.
  • the P0 of the entire MAC-e PDU determined by the UE is the largest one of the P0 values of all MAC-d PDUs, and the UE
  • the determined maximum number of retransmissions of the entire MAC-e PDU is the maximum of the maximum number of retransmissions for all MAC-d PDUs.
  • the UE can determine the transmit power when transmitting the packet based on the QoS (mainly power offset P0) in combination with other information.
  • the specific method is: the network configures in advance the gain factor ⁇ (E-DPDCH/DPCCH power ratio) corresponding to each E-TFI under the reference QoS, and the power offset P0 between each QoS and the reference QoS.
  • the UE first determines the transmit power of the MAC-e PDU according to the gain factor corresponding to the E-TFI of the MAC-e PDU, and then according to the power offset P0 between the QoS of the MAC-e PDU and the reference QoS attribute, the transmit power A correction is made to finally determine the transmit power of the MAC-e PDU.
  • the current 3GPP does not consider the case where the MAC-e PDU contains MAC-e Signaling when determining the QoS attribute of the MAC-e PDU.
  • the information carried in the MAC-e Signalling is necessary for scheduling, so the MAC-e Signaling QoS attribute must also be considered when determining the QoS attributes of the MAC-e PDU.
  • the uplink scheduling information includes a rate increase request, a transmission power, and a size of a data to be transmitted in the memory. Since this information is for Node B scheduling, and Node B itself has only the MAC layer and the physical layer, this information cannot be transmitted at the layer above the MAC.
  • 3GPP basically prefers a rate increase request (Rate Request, only one bit is required) to define a frame structure at the physical layer.
  • Rate Increase Request only one bit is required
  • the MAC-e PDU where the MAC-e Signal ling is located has a very low transmission delay requirement.
  • the transmit power of the MAC-e PDU is relatively small, resulting in successful reception of the packet after repeated retransmissions.
  • the information in the MAC-e Signalling has failed because at this time, the transmission power of the UE or the amount of data to be transmitted in the memory has changed.
  • a method for transmitting MAC-e signaling includes the following steps:
  • the RNC configures QoS attributes for MAC-e signaling and notifies the UE
  • the UE When the UE performs data transmission, if the MAC-e PDU contains MAC-e signaling information, the UE determines the QoS of the entire MAC-e PDU according to the QoS of the MAC-e signaling and the QoS attribute of the data;
  • the UE determines the transmit power of the MAC-e PDU according to the determined QoS, thereby performing MAC e PDU transmission.
  • the UE when the MAC-e PDU is included in the MAC-e PDU, the UE can accurately determine the QoS attribute of the entire MAC-e PDU according to the needs of the MAC-e Signalling, so that the transmit power can be used reasonably, and the effective Transfer to MAC-e Signal ling.
  • Figure 1 is a schematic diagram of a newly added MAC entity in EUDCH
  • FIG. 2 is a structural diagram of a MAC-e PDU
  • Figure 3 is the PayLoad portion of a MAC-e PDU containing multiple MAC-d Flows
  • Figure 4 is a physical channel of the EUDCH.
  • the basic principle of the present invention is that when MAC-e signaling is included in the MAC-e PDU, the UE can accurately determine the QoS attribute of the entire MAC-e PDU according to the needs of the MAC-e signaling, so that the UE can use the transmission reasonably. Power, effective transmission of MAC-e signaling.
  • base station has the same meaning as the word "cell” in the 3GPP English specification.
  • present invention contains the following contents:
  • the RNC configures the QoS attribute for the MC-e signaling and notifies the UE of the attribute.
  • the MAC-e PDU includes MAC-e signaling
  • the QoS of the MAC-e signaling is considered in determining the QoS of the entire MAC-e PDU, and then the MAC is determined according to the determined QoS.
  • e The transmit power of the PDU, thereby performing MAC-e PDU transmission.
  • the UE determines whether to end the transmission of the MAC-e signaling by combining the acknowledgment information and other information of the base station with the MAC-e PDU.
  • the RC configures the QoS attribute for MAC-e signaling in detail and notifies the UE of the attribute.
  • the parameters included in the QoS attribute are the power offset (P0) and the maximum number of retransmissions. ⁇
  • the size of the power offset P0 in the QoS is determined by the network, and the UE is notified by means of RRC signaling or system information broadcast. If the Node B needs the information, the Node B can be signaled through the Iub/Iur interface.
  • the maximum number of retransmissions of MAC-e signaling is 0, that is, the maximum number of retransmissions of the entire MAC-e PDU is determined by the data portion, but
  • the number of transmissions of MAC-e signaling is not limited by the maximum number of retransmissions of the MAC-e PDU. That is, the (re)transmission of MAC-e signaling can continue until it is successfully received or the content of the MAC-e signaling changes, and the transmission of the MAC-e signaling is abandoned.
  • Method 2 When Method 2 is used to configure a fixed value for the maximum number of retransmissions of MAC-e signaling, the fixed value can be determined by the UTRAN and notify the UE and the Node B (if required by the Node B); Specified.
  • the MAC-e signaling in the MAC_e PDU is first classified: Case 1) Only MAC-e in the MAC-e PDU Signaling, no other data; Scenario 2) MAC-e PDU contains both data and MAC-e signaling.
  • the length of MAC-e signaling is relatively large, and the frequency of transmission is not frequent. It can be called "large length.” But the frequency is low" of MAC-e signaling.
  • the report of the Buffer status in all priority queues may be transmitted every 200 milliseconds, and there will be dozens or even hundreds of bits of information at a time.
  • the MAC-e PDU contains both data and MAC-e messages. Therefore, the length of MAC-e signaling is relatively small, but the frequency of transmission is relatively high, which can be called "small but high frequency" MAC-e signaling. For example, a bit of RR (Rate Request), each TTI or every two or three TTIs are transmitted once.
  • RR Rate Request
  • the QoS of the MAC-e signaling is the QoS of the entire MAC-e PDU, that is, the power offset P0 of the MAC-e signaling will be used for the MAC- e PDU power adjustment.
  • the UE can determine the QoS of the MAC-e PDU in two ways.
  • Method 1 Regardless of Case 2 and Case 3, the QoS of the MAC-e PDU is determined by the data portion.
  • Method 2 For case 2, the QoS of the MAC-e PDU is determined jointly by the MAC-e signaling and the data; for case 3, the QoS of the MAC-e PDU is determined only by the data portion thereof.
  • the following describes the UE determining whether to end the transmission of MAC-e signaling.
  • the specific process is:
  • the UE determines the base station that must receive the MAC-e signaling, and is referred to as a "receivable base station" for convenience of description. Then, the MAC-e signaling is placed in a certain MAC-e PDU for transmission and processed as follows: 1) When the MAC_e PDU The entire MAC-e PDU is retransmitted when it is not received by any one of the base stations and does not reach the maximum number of retransmissions of the MAC-e PDU; 2) when the MAC-e PDU is received by some (some) base stations, but is not All the received base stations receive, or the number of transmissions has reached the maximum number of retransmissions of the MAC-e PDU.
  • the data part of the MAC-e PDU does not need to be retransmitted, and the MAC-e signaling part needs to be retransmitted (ie, MAC-e signaling is placed in the subsequent MAC-e PDU for transmission); 3) When the MAC-e PDU is successfully received by all the necessary base stations, the transmission of the MAC-e signaling is stopped; 4) When MAC- Before the e-signal is successfully received by all the necessary base stations, when the content of the MAC-e signaling changes, the transmission of the old MAC-e signaling is stopped, and the updated MAC-e signaling is started.
  • the receiving base station is only the primary scheduling base station (Serving Cell); for some special MAC-e signaling, the receiving base station may contain more than one base station.
  • the primary scheduling base station Server Cell
  • the receiving base station may contain more than one base station.
  • Table 1 Because the QoS requirements of each MAC-d Flow and MAC-e signaling are different, four power offsets P0 are given in Table 1, corresponding to three MAG-d Flow and MAC-e signaling. QoS requirements.
  • the system needs to configure the gain factor corresponding to the different MAC-e PDU size (E-TFI) under the reference QoS.
  • E-TFI gain factor corresponding to the different MAC-e PDU size
  • a MAC-e PDU contains MAC-e signaling and also contains three MACs with different QoS attributes.
  • PDUo assumes that the size of the MAC-e PDU is E-TFIx, and in MAC-e signaling and three MAC-d flows, the QoS requirements of MAC-e signaling are the highest, then the transmit power required to transmit the packet Yes-
  • P E — DPKH is the transmit power of the E - DPCHCH channel where the MAC-e PDU is located;
  • P DPaH is the transmit power of the DPCCH channel.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention a trait à un procédé de transmission de signalisation de commande d'accès au support électronique, comprenant les étapes suivantes: la configuration par le RNC de l'attribut de qualité de service pour la signalisation de commande d'accès au support électronique et la notification de l'équipement d'utilisateur; lors de la transmission de données par l'équipement d'utilisateur, il détermine la qualité de service de toute l'unité de données de protocole de la signalisation de commande d'accès au support électronique selon la qualité de service de la signalisation de commande d'accès au support électronique et l'attribut de qualité de service de données, si l'unité de données de protocole de la signalisation de commande d'accès au support électronique comprend le message de la signalisation de commande d'accès au support électronique; la détermination par l'équipement d'utilisateur de la puissance de transmission de l'unité de données de protocole de signalisation de commande d'accès au support électronique selon la qualité de service déterminée en vue de la transmission de l'unité de données de protocole de signalisation de commande d'accès au support électronique. Dans l'invention, lorsque l'équipement d'utilisateur comporte la signalisation de commande d'accès au support électronique, l'équipement d'utilisateur peut déterminer l'attribut de qualité de service de toute l'unité de données de protocole de signalisation de commande d'accès au support électronique selon la requête de la signalisation de commande d'accès au support électronique, afin d'utiliser de manière raisonnable la puissance de transmission et transmettre efficacement la signalisation de commande d'accès au support électronique.
PCT/CN2005/001936 2004-11-16 2005-11-16 Procede de transmission WO2006053495A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200410092588 2004-11-16
CN200410092588.4 2004-11-16
CN200410104655.X 2004-12-31
CN200410104655XA CN1777080B (zh) 2004-11-16 2004-12-31 MAC-e信令的传输方法

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WO2006053495A1 true WO2006053495A1 (fr) 2006-05-26

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CN1777080A (zh) 2006-05-24

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