KR20140142277A - Ack channel design for early termination of r99 downlink traffic - Google Patents

Abstract

A method, apparatus and computer program product for wireless communication are provided. The device receives the transmission and sends an Ack on the transmission. The packet transmission apparatus starts transmission of a packet, and receives an Ack regarding transmission. The Ack may indicate early decoding of the packets included in the transmission. This makes it possible for the packet transmission apparatus to stop transmission of the packet before transmission of the entire packet. Ack may be determined by applying a pre-configured boost to the transmit power of at least a portion of the slot through which Ack is transmitted, modulating symbols normally transmitted in the slot by a codeword pattern, and transmitting at least one of the Acks through the DPDCH Can be transmitted using one.

Description

ACK CHANNEL DESIGN FOR EARLY TERMINATION OF R99 DOWNLINK TRAFFIC FOR R99 DOWN LINK TRAFFIC

35 U.S.C. Priority claim under § 120

This patent application claims priority from International Application No. PCT / CN2012 / 071938, filed March 5, 2012, entitled " Ack Channel Design for Early Termination of R99 Downlink Traffic, " Assigned to the assignee of the present application and expressly incorporated herein by reference.

References to co-pending patent applications

This patent application is related to co-pending United States patent applications:

Filed February 24, 2012, entitled " METHOD TO IMPROVE FRAME EARLY TERMINATION SUCCESS RATE OF CIRCUIT SWITCHED VOICE SENT ON R99DCH, " filed February 24, 2012, assigned to the assignee of the present invention and expressly incorporated herein by reference. &Quot; Method and System to Improve Early Termination Success Rate "(Attorney Reference 121586) filed on February 21, 2013, which claims priority to U.S. Provisional Application Ser. And

No. 61 / 603,109, filed February 24, 2012, entitled " Ack Channel Design for Early Termination of R99 Uplink Traffic, " which is assigned to the assignee of the present invention and which is expressly incorporated herein by reference. &Quot; Ack Channel Design for Early Termination of R99 Uplink Traffic "filed on February 21, 2013 (Attorney Docket No. 121588)

This patent application,

International Patent Application No. PCT / CN2012 / 071676, filed February 27, 2012, entitled " Ack Channel Design for Early Termination of R99 Downlink Traffic ", assigned to the assignee of the present invention and expressly incorporated herein by reference. number; And

International Patent Application No. PCT / CN2012 / 071665, filed February 27, 2012, entitled " Frame Early Termination of UL Transmissions on Dedicated Channel ", assigned to the assignee of the present invention and expressly incorporated herein by reference, .

The present disclosure relates generally to methods, computer program products and apparatus that include acknowledgments of communication systems, particularly early decoding of packet transmissions.

Wireless communication networks are widely deployed to provide various communication services such as telephony, video, data, messaging and broadcasts. These networks, which are usually multiple access networks, support communications for multiple users by sharing available network resources. An example of such a network is the UMTS Terrestrial Radio Access Network (UTRAN). UTRAN is a third generation (3G) mobile phone technology supported by the Radio Access Network (RAN), the Third Generation Partnership Project (3GPP), defined as part of the Universal Mobile Telecommunications System (UMTS). UMTS, which is followed by Global System for Mobile Communications (GSM) technologies, includes Wideband Code Division Multiple Access (W-CDMA), Time Division-Code Division Multiple Access (TD-CDMA), and Time Division- Air interface standards. UMTS also supports enhanced 3G data communication protocols, such as High Speed Packet Access (HSPA), which provide high data transfer rates and capacity to associated UMTS networks.

As the demand for mobile broadband access continues to grow, research and development continue to enhance UMTS technologies to meet and enhance the user experience of mobile communications as well as to meet the growing demand for mobile broadband access. Become

The following description presents a simplified summary of these aspects in order to provide a basic understanding of one or more aspects. This summary is not a comprehensive overview of all aspects contemplated and is not intended to identify key or critical elements of all aspects or to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

Through the use of early decoding, the system capacity can be substantially increased and the receiver power consumption can be reduced. For example, system capacity can be increased when the transmitter is able to stop transmitting packets as soon as it is known that the receiver has successfully decoded the packet prematurely. Receiver power consumption can also be saved since the appropriate receiver subsystems can be powered down from the successful early decoding time to the end of the packet period.

To realize these capacity increments, the transmitter needs a way to receive a notification from the receiver informing itself that the packet has been decoded before transmission of the whole packet. Thus, there is a need for a fast and reliable feedback channel that allows the receiver to inform the transmitter of the success or failure of its early decoding attempts. The aspects presented herein provide the ability for the receiver to send such a notification to the transmitter.

In the context of this disclosure, methods, computer program products and apparatus are provided. The device receives the transmission and sends an acknowledgment (Ack) about the transmission. Ack may be determined by applying a pre-configured boost to the transmit power of at least a portion of the slot through which the Ack is transmitted, by modulating the symbols normally transmitted in the slot with a codeword pattern, and by using a dedicated physical data channel (DPDCH) Or < / RTI >

The device can further decode the packets included in the transmission prematurely. The Ack may indicate that the packet was decoded early.

In another aspect of the disclosure, methods, computer program products and apparatus are provided. The device transmits the wireless communication to, for example, the receiving device. The device receives an Ack for transmission. Ack may be received as a transmission using at least one of a pre-configured boost applied to the transmit power of at least a portion of the slot through which the Ack is transmitted, modulation by a codeword pattern of symbols normally transmitted in the slot, and transmission over the DPDCH have.

The Ack includes an indication of early decoding of the packets included in the transmission. Thereafter, the device may abort transmission of the packet in response to receiving the Ack.

To the accomplishment of the foregoing and related ends, the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative aspects of the one or more aspects. These features, however, are intended to be illustrative of but a few of the various ways in which the principles of various aspects may be employed, and the description is intended to include all such aspects and their equivalents.

BRIEF DESCRIPTION OF THE DRAWINGS The disclosed aspects will now be described with reference to the accompanying drawings, provided purely by way of example and not of limitation, wherein the same notations denote the same elements.

1 is a diagram illustrating an example of a hardware implementation for an apparatus using a processing system.
2 is a block diagram conceptually illustrating an example of a telecommunication system.
3 is a conceptual diagram illustrating an example of an access network.
4 is a block diagram conceptually illustrating an example of communication between a Node B and a UE in a telecommunication system.
Figure 5 illustrates aspects of Ack transmission over the uplink.
6 is a flow chart of a method of wireless communication.
7 is a flow chart of a method of wireless communication.
8 is a conceptual data flow diagram illustrating data flow between different modules / means / components in an exemplary apparatus.
9 is a conceptual data flow diagram illustrating data flows between different modules / means / components in an exemplary apparatus.
10 is a diagram illustrating an example of a hardware implementation for an apparatus using a processing system.

The following detailed description with reference to the accompanying drawings is intended as a description of various configurations and is not intended to represent only configurations in which the concepts described herein may be practiced. The detailed description includes specific details to provide a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some instances, well known structures and components are shown in block diagram form in order to avoid obscuring these concepts.

As used herein, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity such as but not limited to a combination of hardware, firmware, software and hardware, software, . For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, an execution thread, a program, and / or a computer. By way of illustration, both an application running on a computing device and a computing device may be a component. One or more components may reside within a process and / or thread of execution, one component may be localized on one computer, and / or distributed between two or more computers. Further, such components may execute from various computer readable media having various data structures stored therein. The components may include one or more data packets (e.g., from one component interacting with another component over a network (e.g., the Internet) with other systems in a distributed system and / Lt; / RTI > and / or < / RTI > remote data).

In addition, various aspects are described herein in connection with a terminal that may be a wired terminal or a wireless terminal. A terminal may also be referred to as a system, device, subscriber unit, subscriber station, mobile station, mobile, mobile device, remote station, remote terminal, access terminal, user terminal, terminal, communication device, user agent, user device, . A wireless terminal may be a cellular telephone, a satellite telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device having wireless connectivity capabilities, Lt; RTI ID = 0.0 > processing devices. Also, various aspects are described herein in connection with a base station. A base station may be utilized to communicate with the wireless terminal (s) and may also be referred to as an access point, a Node B, or some other terminology.

Also, the term " or "is intended to mean " exclusive" or "rather than exclusive" That is, unless otherwise specified or clear from the context, the phrase "X uses A or B" is intended to mean any of the natural, general permutations. That is, the following cases where the phrase "X uses A or B ", i.e. X uses A; X uses B; Or in the case where X uses both A and B. Also, the terms used in the present application and in the appended claims are to be construed to mean "one or more ", unless the context clearly dictates otherwise or singular.

The techniques described herein may be used for various wireless communication networks, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "network" and "system" are often used interchangeably. CDMA systems can implement radio technologies such as Universal Terrestrial Radio Access (UTRA), cdma2000, and the like. UTRA includes wideband-CDMA (W-CDMA) and other variants of CDMA. Cdma2000 also covers IS-2000, IS-95 and IS-856 standards. The TDMA system may implement radio technology such as Global System for Mobile Communications (GSM). OFDMA systems can implement radio technologies such as bulb UTRA (E-UTRA), ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMDM. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) is the release of UMTS using E-UTRA, which uses OFDMA on DL and SC-FDMA on UL. UTRA, E-UTRA, UMTS, LTE and GSM are described in documents from the organization named as "3rd Generation Partnership Project (3GPP) ". In addition, cdma2000 and UMB are described in documents from the organization named "3rd Generation Partnership Project 2 (3GPP2) ". In addition, such wireless communication systems often use peer-to-peer (e.g., mobile-to-peer) communications using unpaired unlicensed spectrums, 802.xx wireless LAN, BLUETOOTH, and any other short- To-mobile) ad hoc network systems.

Various aspects or features will be presented in connection with systems that may include multiple devices, components, modules, and the like. It is to be understood and appreciated that the various systems may not include all of the devices, components, modules, etc. discussed in connection with the drawings and / or including additional devices, components, modules, . Combinations of these approaches can also be used.

1 is a conceptual diagram illustrating an example of a hardware implementation for an apparatus 100 using a processing system 114. As shown in FIG. The processing system may further include an early decoding component (120) configured to transmit and receive Early Decoding Acks. For example, the early decoding component 120 may include Ack transmission functions similar to those described in connection with FIGS. 6 and 8 and Ack reception functions similar to those described in connection with FIGS. 7 and 9 . In some aspects, the early decoding component 120 may be a standalone component in the processing system 9114 or may be a stand-alone component in the processing system 9114 or by one or more processing modules within the processor 104 or stored as a computer-readable medium 106, 104), or some combination thereof. ≪ RTI ID = 0.0 >

For example, aspects of the Ack transmission capability of the early decoding component 120 may include applying pre-configured boost to the transmit power of at least a portion of the slot through which Ack is transmitted, applying symbols that are normally transmitted in the slot to a codeword pattern , And transmitting an Ack over the DPDCH, for example, to transmit an Ack of early decoding.

Aspects of the Ack receive function of early decoding component 120 may receive an Ack of, for example, early decoding after starting transmission of a packet. Ack may be received as a transmission using at least one of a pre-configured boost applied to the transmit power of at least a portion of the slot through which the Ack is transmitted, modulation by a codeword pattern of symbols normally transmitted in the slot, and transmission over the DPDCH have.

In this example, the processing system 114 may be implemented with a bus architecture that is generally represented by bus 102. The bus 102 may include any number of interconnect busses and bridges in accordance with the particular application of the processing system 114 and overall design constraints. The bus 102 may include one or more processors generally represented by the processor 104, a computer-readable medium generally represented by the computer-readable medium 106, and an early decoding component 120 in some aspects. Which links the various circuits together. The bus 102 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and will not be further described. Bus interface 108 provides an interface between bus 102 and transceiver 110. The transceiver 110 provides a means for communicating with various other devices via a transmission medium. According to the properties of the device, a user interface 112 (e.g., a keypad, display, speaker, microphone, joystick) may also be provided.

The processor 104 is responsible for managing the general processing and bus 102, including the execution of software stored on the computer-readable medium 106. The software, when executed by the processor 104, causes the processing system 114 to perform the various functions described above for any particular device. The computer-readable medium 106 may also be used to store data operated by the processor 104 when executing software.

The various concepts presented throughout this disclosure may be implemented over a wide variety of different telecommunications systems, network architectures, and communication standards.

2, aspects of the early decoding component 120 disclosed herein may include user equipment (UE) 210 operating in a UMTS system 200 using a W-CDMA air interface / RTI > and / or by Node B 208. < RTI ID = 0.0 > The UMTS network includes three interaction domains: Core Network (CN) 204, UMTS Terrestrial Radio Access Network (UTRAN) 202, and UE 210. In this example, the UTRAN 202 provides various wireless services including telephony, video, data, messaging, broadcasts, and / or other services. The UTRAN 202 may comprise a plurality of radio network subsystems (RNS), such as an RNS 207, each controlled by a separate radio network controller (RNS), such as an RNC 206. Herein, the UTRAN 202 may include any number of RNCs 206 and RNSs 207 in addition to the RNCs 206 and RNSs 207 illustrated herein. The RNC 206 is a device responsible for allocating, reconfiguring, and releasing radio resources within the RNS 207 among other things. The RNC 206 may be interconnected to other RNCs (not shown) in the UTRAN 202 via various types of interfaces, such as direct physical connections, virtual networks, etc., using any suitable transport network.

For example, the communication between the UE 210 and the Node B 208, which may be the UE 1130 of FIG. 1, may be considered to include a physical (PHY) layer and a medium access control (MAC) layer. In addition, communication between UE 210 and RNC 206 via individual Node B 208 can be considered to include a radio resource control (RRC) layer. In this specification, a PHY layer can be considered as a layer 1, a MAC layer can be considered as a layer 2, and an RRC layer can be considered as a layer 3. The following information utilizes terms introduced in the Radio Resource Control (RRC) Protocol Specification, 3GPP TS 25.331 v9.1.0, which is incorporated herein by reference. As noted above, the UE 210 may include an early decoding component 120 as described in connection with FIG.

The geographic area covered by the SRNS 207 may be divided into a number of cells, where the radio transceiver device serves each cell. A radio transceiver device is generally referred to as a Node B in UMTS applications but may also be referred to as a base station (BS), a base transceiver station (BTS), a radio base station, a radio transceiver, a transceiver function, a base service set (BSS) ESS), an access point (AP), or any other suitable term. For clarity, three Node Bs 208 are shown in each SRNS 207, although SRNSs 207 may include any number of wireless Node Bs. Node Bs 208 provide wireless access points to the core network (CN) 204 to any number of UEs. Although only one Node B 208 is illustrated as having an early decoding component 120, each of the Node Bs 208 may include such components, as described in connection with FIG. Examples of mobile devices include, but are not limited to, cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptops, notebooks, netbooks, smartbooks, personal digital assistants (PDAs), satellite radios, global positioning system Device, a digital audio player (e.g., an MP3 player), a camera, a game console, or any other similar functional device. A mobile device is commonly referred to as a user equipment (UE) in UMTS applications but may also be referred to as a mobile station (MS), a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, , A mobile subscriber station, an access terminal (AT), a mobile terminal, a wireless terminal, a remote terminal, a handset, a terminal, a user agent, a mobile client, a client, or some other appropriate terminology. In the UMTS system, the UE 210 may further include a Universal Subscriber Identity Module (USIM) 211 that includes the subscriber information of the user for the network. For purposes of example, one UE 210 is shown communicating with multiple Node Bs 208. A DL, also referred to as a forward link, refers to a communication link from a Node B 208 to a UE 210, and a UL, also referred to as a reverse link, refers to a communication link from a UE 210 to a Node B 208.

The core network 204 may interface with one or more access networks, such as the UTRAN 202. As shown, the core network 204 is a UMTS core network. However, as those skilled in the art will appreciate, the various concepts presented throughout this disclosure may be implemented in a RAN or other suitable access network to provide UEs with access to types of core networks other than GSM networks .

The core network 204 includes a circuit-switched (CS) domain and a packet-switched (PS) domain. Some elements of the circuit-switched elements are a mobile service switching center (MSC), a visitor location register (VLR), and a gateway MSC. The packet-switching elements include a Serving GPRS Support Node (SGSN) and a Gateway GPRS Support Node (GGSN). Some network elements such as EIR, HLR, VLR and AuC may be shared by both circuit-switched and packet-switched domains. In the illustrated example, core network 204 supports circuit-switched services using MSC 212 and GMSC 214. In some applications, the GMSC 214 may be referred to as a media gateway (MGW). One or more RNCs, such as the RNC 206, may be coupled to the MSC 212. The MSC 212 is a device that controls call setup, call routing, and UE mobility functions. The MSC 212 also includes a visitor location register (VLR) that includes subscriber-related information for the duration that the UE is within the coverage area of the MSC 212. [ The GMSC 214 provides a gateway through the MSC 212 to allow the UE to access the circuit-switched network 216. The core network 204 includes a home location register (HLR) 215 that contains subscriber data, such as data, that reflects the details of services subscribed by a particular user. The HLR is also associated with an Authentication Center (AuC) that includes subscriber-specific authentication data. When a call is received for a particular UE, the GMSC 214 queries the HLR 215 to determine the location of the UE and forwards the call to the particular MSC serving the location.

Core network 204 also supports packet-switched data services using a Serving GPRS Support Node (SGSN) 218 and a Gateway GPRS Support Node (GGSN) 220. GPRS, representing general packet radio service (GPRS), is designed to provide packet-data services at rates that are higher than the rates available for standard line-switched data services. The GGSN 220 provides a connection to the UTRAN 202 in the packet-based network 222. The packet-based network 222 may be the Internet, a private data network, or some other suitable packet-based network. The main function of the GGSN 220 is to provide packet-based network connectivity to the UEs 210. The data packets may be communicated between the GGSN 220 and the UEs 210 via the SGSN 218 and the SGSN 218 may use the same functions that the MSC 212 performs in the circuit- It is mainly performed in the domain.

The UMTS air interface may be a spread spectrum direct-sequence code division multiple access (DS-CDMA) system. Spectrum spreading DS-CDMA spreads user data through multiplication by a sequence of pseudo random bits called chips. The W-CDMA air interface to the UTRAN 202 is based on this direct sequence spread spectrum technique and additionally requires frequency division duplexing (FDD). FDD uses a different carrier frequency for the uplink (UL) and downlink (DL) between the Node B 408 and the UE 210. Another air interface for UMTS that utilizes DS-CDMA and uses Time Division Duplexing (TDD) is the TD-SCDMA air interface. Those skilled in the art will recognize that the following principles are equally applicable to the TD-SCDMA air interface, although the various examples described herein may refer to a W-CDMA air interface.

Referring to FIG. 3, an access network 300 in the UTRAN architecture is illustrated. A plurality of access wireless communication systems includes a plurality of cellular regions (cells), including cells 302, 304, and 306, each of which may include one or more sectors. As described in connection with FIGS. 5-10, aspects of the early decoding and Ack transmission, including the early decoding component 120 of FIG. 1, may be performed by UEs 330, 332, 334, 336, 338 and 340 and cells 302, 304, and 306, respectively. For example, the UE 336 may receive the packet transmission 350 from the transmitter 344. The UE 336 may attempt to decode the packet transmission 350 prematurely before receiving the entire packet transmission 450. [ Once the UE 336 successfully decodes the packet transmission early, the UE 336 may send the Ack 352 to the transmitter 344. [ This makes it possible for the transmitter to stop transmitting the packet transmission, thus increasing the system capacity.

Multiple sectors may be formed by groups of antennas, with each antenna responsible for communicating with the UEs in the portion of the cell. For example, in cell 302, antenna groups 312, 314, and 316 may correspond to different sectors, respectively. In cell 304, antenna groups 318, 320, and 322 may correspond to different sectors, respectively. In cell 306, antenna groups 324, 326, and 328 may correspond to different sectors, respectively. Cells 302, 304, and 306 may include various wireless communication devices, e.g., user equipment or UEs, capable of communicating with one or more sectors of each cell 302, 304, For example, UEs 330 and 332 may communicate with Node B 342, UEs 334 and 336 may communicate with Node B 344, and UEs 338 and 340 may communicate with Node B 344. [ And may communicate with the Node B 346. Here, each Node B 342, 344, 346 is connected to all of the UEs 330, 332, 334, 336, 338, 340 of the respective cells 302, , ≪ / RTI >

A serving cell change (SCC) or handover may occur when UE 334 moves from an exemplary location in cell 304 into cell 306 where communication with UE 334 may be referred to as a source cell Cell 306 that may be referred to as a target cell. Management of the handover procedure may be performed at the UE 334, at the Node Bs corresponding to individual cells, at the radio network controller 206 (see FIG. 2) or at other appropriate nodes of the radio network. For example, during a call with the source cell 304 or at some other time, the UE 334 may send various parameters of the source cell 304 as well as various parameters of neighboring cells such as cells 306 and 302 Can be monitored. In addition, depending on the quality of these parameters, the UE 334 may maintain communication with one or more of the neighboring cells. During this time, the UE 334 may maintain a list of cells in which the active set, i.e., the UE 334, is concurrently connected (the DL dedicated physical channel DPCH or the partial DL dedicated physical channel F- The UTRA cells that are allocating can configure the active set).

The modulation and multiple access schemes used by the access network 300 may vary according to the particular telecommunications standard being used efficiently. By way of example, standards may be extended to EV-DO (Evolution-Data Optimized) or Ultra Mobile Broadband (UMB). EV-DO and UMB are air interface standards published by the 3rd Generation Partnership Project 2 (3GPP2) as part of the CDMA2000 family of standards and use CDMA to provide broadband Internet access to mobile stations. Universal Terrestrial Radio Access (UTRA) using Wideband-CDMA (W-CDMA) and other variations of CDMA, such as standard TD-SCDMA; A Global System for Mobile Communications (GSM) using TDMA; And FLASH-OFDM using this bulb UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20 and OFDMA. UTRA, E-UTRA, UMTS, LTE and GSM are described in documents from the 3GPP authority. CDAM2000 and UMB are described in documents from the 3GPP2 organization. The multiple access technology used and the actual wireless communication standard will depend on the overall design constraints imposed on the particular application and system.

4 is a block diagram of communication between a UE 450 and an exemplary Node B 410 where the Node B 410 may be a Node B 308 of FIGURE 2, UE 310. < / RTI > As described herein, at the Node B 410, the Ack transmission function of the early decoding component 120 of FIGS. 1 and 2 may be performed by any of the TX processor 420, the TX frame processor, and the controller / processor 440 ≪ / RTI > The Ack receive function of the early decoding component of the Node B 410 may include any of the RX processor 438, the RX frame processor, and the controller / processor 440. At the UE 450, the Ack transmission function of the early decoding component 120 of FIGS. 1 and 2 may include any of the TX processor 480, the transmission frame processor 482 and the controller / processor 490 . The Ack reception function of the early decoding component 120 at the UE 450 may include any of the RX processor 470, the RX frame processor 460 and the controller / processor 490.

In a DL communication, the transmit processor 420 may receive data from the data source 412 and control signals from the controller / processor 440. The transmit processor 420 provides various signal processing functions for the reference signals (e.g., pilot signals) as well as data and control signals. For example, the transmit processor 420 may perform cyclic redundancy check (CRC) codes for error detection, coding and interleaving to facilitate forward error correction (FEC), various modulation schemes (e.g., binary phase Mapping to signal constellations based on phase shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), M-quadrature amplitude modulation (M- The multiplication with spreading and scrambling codes using orthogonal variable spreading factors (OVSFs) can be provided to generate a series of symbols. The channel estimates from channel processor 444 may be used by controller / processor 440 to determine coding, modulation, spreading and / or scrambling schemes for transmit processor 420. These channel estimates may be derived from the reference signal transmitted by the UE 450 or from feedback from the UE 450. [ The symbols generated by the transmit processor 420 are provided to the transmit frame processor 430 to generate a frame structure. Transmission frame processor 430 generates this frame structure by multiplexing the information and symbols from controller / processor 440 to generate a series of frames. The frames are then provided to a transmitter 432 which provides various signal conditioning functions including amplifying, filtering and modulating the frames to enable the transmitter 432 to transmit DL transmission. Antenna 434 may include one or more antennas including, for example, beam-steered bidirectional adaptive antenna arrays or other similar beam technologies.

At the UE 450, the receiver 454 receives the DL transmission over the antenna 452 and processes the transmission to recover the information modulated with the carrier. The information reconstructed by the receiver 454 is provided to a receive frame processor 460 that parses each frame and the receive frame processor 460 provides information from the frames to the channel processor 494 Data, control, and reference signals to receive processor 470. The receive processor 470 then performs the inverse of the processing performed by the transmit processor 420 of the Node B 410. More specifically, receive processor 470 descrambles and despreads the symbols and then determines the most likely signal constellation points transmitted by Node B 410 based on the modulation scheme. These soft decisions may be based on the channel estimates computed by the channel processor 494. The soft decisions are then decoded and deinterleaved to recover the data, control and reference signals. Thereafter, the CRC codes are checked to determine whether the frames have been successfully decoded. The data conveyed by the successfully decoded frames will then be provided to a data sink 472 and the data sink 472 may communicate with applications running within the UE 450 and / For example, a display). The control signals carried by the successfully decoded frames will be provided to the controller / processor 490. When frames are not successfully decoded by the receiver processor 470, the controller / processor 490 may also send an acknowledgment (ACK) and / or a negative acknowledgment (NACK) protocol to support retransmission requests for these frames Can be used.

In the UL, data from the data source 478 and control signals from the controller / processor 490 are provided to the transmit processor 480. The data source 478 may represent applications running in the UE 450 and various user interfaces (e.g., keyboard). Similar to the functions described in connection with the DL transmission by the Node B 410, the transmission processor 480 includes CRC codes, coding and interleaving to facilitate FEC, mapping to signal constellations, spreading using OVSFs And scrambling to generate a series of symbols. The channel estimates derived by the channel processor 494 from the reference signal transmitted by the Node B 410 or from the feedback contained in the midamble transmitted by the Node B 410 may be suitably coded, Can be used to select scrambling schemes. The symbols generated by the transmit processor 480 may be provided to the transmit frame processor 482 to generate a frame structure. Transmission frame processor 482 generates this frame structure by multiplexing the information and symbols from controller / processor 490 to generate a series of frames. Thereafter, the frames are provided to a transmitter 456, which provides various signal conditioning functions, including amplifying, filtering, and modulating the carriers, to transmit UL transmission over the wireless medium via antenna 452. [ do.

The UL transmission is processed at the Node B 410 in a manner similar to that described in connection with the receiver function of the UE 450. Receiver 435 receives UL transmission over antenna 434 and processes the transmission to recover information modulated with the carrier. The information reconstructed by the receiver 435 is provided to a receive frame processor 436 that parses each frame and the receive frame processor 436 provides information from the frames to the channel processor 444, And reference signals to a receive processor 438. The receive processor 438 performs the inverse of the processing performed by the transmit processor 480 of the UE 450. Data and control signals carried by frames that are successfully decoded may then be provided to a data sink 439 and a controller / processor, respectively. If some of the frames have not been successfully decoded by the receive processor 438, the controller / processor 440 may also generate an acknowledgment (ACK) and / or a negative acknowledgment (" acknowledgment ") to support retransmission requests for these frames NACK) protocol can be used.

Controllers / processors 440 and 490 may be used to direct operation at Node B 410 and UE 450, respectively. For example, controller / processors 440 and 490 may provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The computer readable media of memories 442 and 492 may store data and software for Node B 410 and UE 450, respectively. The scheduler / processor 446 of the Node B 410 may be used to allocate resources to the UEs and to schedule downlink and / or uplink transmissions to the UEs.

Through the use of early decoding, the system capacity can be substantially increased and the receiver power consumption can be reduced. For example, system capacity can be increased when the transmitter is able to stop transmitting packets as soon as it is known that the receiver has successfully decoded the packet prematurely. Receiver power consumption can also be saved since the appropriate receiver subsystems can be powered down from the successful early decoding time to the end of the packet period.

To realize these capacity gains, the transmitter needs a way to receive an indication from the receiver informing it that the packet has been decoded before transmission of the whole packet. Thus, there is a need for a fast and reliable feedback channel that allows the receiver to inform the transmitter of the success or failure of its early decoding attempts.

(Hereinafter referred to as " Increasing Capacity in Wireless Communications, "PCT / CN2009 / 075179 (WO2011 / 063569) (CDM) approaches, and the content of the international application is incorporated herein by reference. U.S. Provisional Application No. 61 / 603,109, Attorney Docket No. 121588P1, filed on February 24, 2012, entitled " Ack channel design for early termination of R99 uplink traffic ", herein incorporated by reference, 2], detailed design principles and options have been proposed, some of which are specific to Ack for uplink traffic and many of which are equally applicable to both uplink and downlink Ack channels Do. International Application No. PCT / CN2012 / 071665 (Attorney Docket No. 121601P1), filed on February 27, 2012, entitled " Frame Early Termination of UL transmissions on dedicated channel ", incorporated herein by reference, (Hereinafter referred to as [3]), some specific design options have been considered for the Ack channel for downlink traffic in the context of defining algorithms for early termination of transmission in response to Acks.

The aspects presented here use these approaches to provide additional implementation aspects and design options that provide solutions to issues that may arise.

R99 packets transmitted during time durations, e.g., transmission time intervals (TTI) of 10 ms, 20 ms, 40 ms, or 80 ms, may be decoded by the receiver before reception of the entire packet. Once decoded, the Ack may be sent to inform the device to send a R99 packet that will stop the transmission, thus reducing the transmission power requirements and increasing the system capacity.

As described in [3], one design option for transmitting the Ack / Nack on the uplink is to transmit the on / off keyed Ack / Negative acknowledgment in all sub- (Ack / Nack) on the uplink dedicated physical control channel (DPCCH) by replacing the transmission power control (TPC) field by the NACK field.

In order to be reliably received, Ack may require higher transmit power than TPC. One option is to boost the Ack symbols by a pre-configured power offset for TPC symbols. In some cases, selective boosting of certain symbols within a slot may result in detrimental RF disturbances. In order to prevent this, the entire DPCCH slot to which Ack is to be transmitted may be boosted with respect to the power level at which Ack was transmitted according to the current R99 specification. This power boost is applied not only to the slots to which "Nack" is transmitted but also to the slots to which "Ack" is to be transmitted or to the slots that are not reserved for Ack / Nack transmission. Receiver algorithms that rely on DPCCH symbol power measurements can be modified as appropriate to account for this known power boost once the Ack / Nack detector detects an Ack in a particular slot.

Replacing the TPC by Ack in the selected uplink slots has the effect of reducing the power-control rate for the downlink. Similar to the case described in [2], negative performance influences from it may include configuration parameters such as power-control step size and receiver algorithm parameters, such as SNR estimation filter coefficients, to account for the reduced power- Can be mitigated by optimization. Also, as in [2], this effect may be achieved by an alternative design that replaces only the portion of the TPC symbols by the Ack / Nack symbols in the slots reserved for transmitting Ack / Nack, for example TPC and Ack / Nack symbols Can be reduced by in-phase-quadrature-phase (IQ) multiplexing.

Another approach to Ack channel design is the CDM approach where Ack / Nack is transmitted over different channels using separate spreading codes. This has the advantage that at the expense of using additional code resources, the uplink power-control rate is not affected. However, the new code resources do not have to be exclusive to the Ack / Nack channel, and other already existing ones can be modified to accommodate the Ack / Nack channel. For example, the encoding of enhanced DPCCH (E-DPCCH) or fast DPCCH (HS-DPCCH) may be modified to include bits indicating Ack / Nack.

The aforementioned methods systems may reside in a UE receiver and / or a Node B transmitter. In addition, the implementation of the currently discussed embodiments may involve changes in standards.

The Ack can be transmitted by replacing the TPC fields of specific pre-defined slots (e.g., all of the respective alternative slots) by the on-off keyed Ack / Nack field. Through the use of this on-off keying, "off" transmissions transmitted with zero power represent Nack until "on" transmission is transmitted with pre-configured power to indicate a positive Ack. Thus, only the Nack symbol will be transmitted at zero power, and all symbols in the slot will have the same transmit power. This will result in a degradation of the waveform cubic metric, thus requiring a transmit power back-off. The aspects presented here avoid this problem and provide a way to transmit Ack while preserving the characteristics that all symbols in the slot have the same transmit power.

One way to avoid the above-mentioned problem using on-off keying is to use NACK rather than zero power, rather than dummy symbols, for example, to indicate Nack using discontinuous transmission (DTX). The Ack is indicated using the same symbol, but can be transmitted at a high power level. In both cases, the same power level may be used for all symbols of the slot. Although the slot carrying the Ack may have a different power level than carrying Nack, the power discontinuity is only once per slot, as opposed to once per symbol when the on-off keying of the Ack / Nack field is used Occurs. The receiver may be difficult to distinguish Ack from Nack by using only transmit power levels due to channel fading, power control, and the like. Thus, different symbols may also be used to indicate Ack and Nack. For example, Nack may be a symbol value of -1 transmitted at low power, while Ack may be a symbol value of +1 transmitted at high power. The high power may include an increase in DELTA _Ack as illustrated in Fig. This increases the separation between the two possible symbol hypotheses so that the receiver can more accurately decode between Acks and Nacks. The asymmetric performance requirements for Nack-to-Ack versus Ack-to-Nack error probabilities can be realized by an appropriate choice of decision thresholds just as in the case of on-off keying. However, such a decision may be based on coherent detection rather than net energy level measurement and thus requires channel estimation to serve as a phase reference. The pilot symbols transmitted in the same slot on the DPCCH may serve as a phase reference. Once the TFCI has been decoded, it can also be used as a pilot for demodulation of the DPDCH, for example. Its use can also be extended to aid demodulation of the Ack / Nack field.

Another approach to Ack / Nack signaling is to continue to use on-off keying, similar to that proposed in [2], but to continue I-Q multiplexing the TPC field and Ack / Nack. In this aspect, the TPC may be transmitted per slot to maintain the current 1500 Hz downlink power-control rate in accordance with current specifications in the slots in which Nack is signaled. In order to signal Ack, all non-TCP symbols in the slot may be power-boosted. TPC symbols can be boosted to half the power of non-TPC symbols and the other half of the power for TPC symbols can be used to transmit TPC symbols and multiplexed Ack symbols IQ. The power for each branch, I and Q, varies faster than once per slot (in the Ack symbol). However, the total power for both the I and Q branches varies only once per slot. Thus, this can potentially reduce the impact on the cubic metric.

The approaches discussed above attempt to conserve as much of the existing slot structure as possible and thus can only modify the slot power level for slots in which the Ack symbol itself and Ack are transmitted in the slots reserved for Ack / Nack signaling . Its intent is to keep the current processing of other symbols in the slot, e.g., pilot and transport format combination indicator (TFCI) as unaffected as possible. Other aspects may include some modifications to such processing. For example, when the uplink DPDCH packet is not yet decoded and the pilots are used to demodulate the DPDCH, transmitting an Ack in the slot causes the pilots in that slot to be received at a higher power than normal. The channel estimation algorithm of the receiver needs to consider using the input from the Ack / Nack decision module and the channel estimation may be degraded if the Ack / Nack detector fails to perform well. If receiver algorithm changes are inevitable, additional aspects may modify the maximum slot structure to make more complex receiver schemes necessary but provide better performance.

For example, the Ack / Nack information may be encoded using two orthogonal binary codewords that modulate the pilot symbols in each slot. For example, if p1, p2, p3, p4, p5, p6 are the six pilot symbols that are normally transmitted in a particular slot, then Nack can be indicated by transmitting these six symbols. However, the symbols p1, p2, p3, -p4, -p5 and -p6 may be sent to indicate the Ack. The receiver compares the energies of the correlations between the received pilots r1, r2, r3, r4, r5, r6 and the two orthogonal vectors [1 1 1 1 1 1] and [1 1 1-1-1-1] Ack can be distinguished from Nack.

Distributing information across multiple slot symbols may reduce additional power requirements for transmitting Acks. This also prevents the TPC field from reserving slots replaced by Ack and thus the TPC can be transmitted per slot, thus preserving the current 1500 Hz downlink power control rate.

In a further aspect, once the transmitter knows that the receiver has decoded the TFCI field by, for example, receiving an Ack on the downlink, the transmitter may extend the orthogonal code overlay of the Ack / Nack information to include both pilot and TFCI symbols .

In another variation, modulation by orthogonal vectors (e.g., one orthogonal vector is composed of Mode 1s and the other is made up of the same number of +1s and -1s) is associated with pilots or pilots and TFCI Instead, it can only be applied to the TPC field. In this case, the pilots can be used as a phase reference for demodulating the resulting TPC / Ack-Nack field. For example, if the TPC field has two bits, the current specification requires a transmission of 00 or 11 to indicate an up or down command. Unused values 10 and 01 may be used to multiplex the Ack information with the TPC. For example, a value of 10 may represent an Ack and a TPC up command, while 01 may represent an Ack and TPC down command, values 00 and 11 may retain their semantics according to the current specification, In addition to Nack.

As mentioned previously, all of the approaches described above require the receiver to modify its DPCCH pilot processing depending on whether or not an Ack has been detected in the slot to account for any additional transmit power boosts that have been applied to the slot. The outlined CDM approach, in which an Ack is transmitted via an individual spreading code, avoids this requirement. Instead, when using the CDM approach, the receiver must monitor the reception states for this spreading code. However, the use of new spreading codes may have a small impact on cubic metrics, and reusing codes for existing control channels (E-DPCCH or HSDPCCH) may modify the encoding of the codes to include Ack / Nack information I will ask.

Accordingly, aspects may include reusing the uplink DPCCH for this purpose. If the DPDCH was already decoded and acknowledged, the transmitter would have turned off the DPDCH transmissions. Therefore, the DPDCH can then be reused to transmit the Ack. Ack can be indicated by transmitting a predetermined pattern of modulation symbols. Alternatively, the Ack may be indicated by transmitting the same symbols transmitted if the DPDCH has not already been decoded. As another option, the Ack may be indicated by transmitting some of the functions of these symbols being transmitted, for example a negative acknowledgment of these symbols. The transmission may be of a predetermined power offset (T2P) for the DPCCH and need not be the same as the normal DPDCH T2P used for the other slots for which Ack is not transmitted.

Although the uplink DPDCH transmission has not yet been decoded, Ack can be signaled in its corresponding slot by increasing the DPDCH T2P for that slot. This increase can make it more difficult to detect when the DPDCH is compared to the situation when the DPDCH was already decoded in case the detector was simply facing the presence or absence of the DPDCH. This difficulty of detection can be compensated for by using a sufficiently large T2P increase. The value of the T2P increase used may also be a function of other parameters such as a spreading factor and these parameters may affect the performance of the receiver subsystem to detect such T2P increase. Detection may be further facilitated by repeating Ack across multiple slots if possible or until the UE detects that an Ack has been received. A determination can be made as to whether the Ack was received by monitoring the receiver power of the downlink data packet even after the downlink data packet has been decoded to determine that transmission of the downlink data packet has been stopped in response to the Ack.

In another approach, the transmission of Ack may be delayed until the uplink DPDCH is decoded to increase its reliability. This increase in reliability can be made at the expense of some of the downlink early termination gain.

Finally, even though the previous scheme of reusing the DPDCH for Ack has been described in connection with acknowledgment of downlink packet transmissions, with respect to Ack transmission on the uplink, Lt; RTI ID = 0.0 > Ack < / RTI > For this purpose, some of the schemes described in [2] may require transmitting very high power concentrated in a single Ack symbol, which may cause issues of RF implementations. Instead, if the downlink DPDCH has already been decoded, the Ack power can be spread across the multiple DPDCH symbols, thus reducing harmful RF effects. This also makes it possible to transmit an Ack in any slot and thus can reduce the Ack delay compared to some schemes of [2], where Ack can only be transmitted in a specific spare subset of slots.

In any of these aspects, a determination may also be made as to whether to transmit an Ack based on other criteria, even if the packet was decoded. For example, the receiver may decide not to transmit Ack even if the receiver decoded the packet transmission prematurely when the transmitter to transmit the Ack is close to its maximum power limit. The receiver can also decide that when a packet is decoded very close to its own completion, the receiver will not transmit an Ack even though it has decoded the packet transmission prematurely. For example, the UE can make such a determination when the amount of time that the packet transmission can be stopped after considering the delay when receiving the Ack is very small or zero.

The methods discussed above may be implemented as appropriate in the UE receiver and / or the Node B transmitter, for example. In addition, the present invention may involve changes in standards.

6 is a flow diagram of a method 600 of wireless communication. The method may be performed by a wireless device, such as a UE or a Node B, that receives wireless communications. In an aspect, the device may be an apparatus 802 as described in connection with FIG. At 601, the device receives a transmission, for example a packet transmission. The device may receive wireless communications from a packet transfer device, such as a Node B or a UE, e.g., 850 of FIG. 8 or 902 of FIG. Receiving may be performed by a receiving module, e. G. 804 of Fig. At 602, the device sends an acknowledgment about the transmission received at 601. In an aspect, the acknowledgment may be sent via a transmission module, e.g., 808, illustrated in FIG. Ack may be configured to apply a preconfigured boost to the transmit power of at least a portion of the slot through which Ack is transmitted, e.g., at 604, to modulate the codeword pattern with symbols to be transmitted normally, as at 606, and 608 Lt; RTI ID = 0.0 > Ack < / RTI > over the DPDCH, as shown in FIG.

The Ack may be transmitted via UL or DL. For example, an Ack for traffic packets transmitted on the R99 downlink channel may be transmitted on specific slots of the R99 uplink channel. Such an R99 uplink channel may comprise a DPCCH channel.

The device may, at 610, selectively decode the packets included in the transmission prior to receiving the entire packet, and Ack may indicate that the packet was decoded prematurely. Alternative aspects are illustrated with dotted lines. In an aspect, decoding may be performed by a decoding module, e.g., 806 illustrated in FIG.

The Ack can only be transmitted once per packet decoding. Alternatively, the Ack may be transmitted a number of times for each successful decoding of the packet. This can increase the reliability of reception of the Ack. In another aspect, Ack can only be repeated in certain circumstances. Thus, the device may determine, at 612, whether to send an additional Ack. This determination may be based, for example, on whether the transmission of the packet has been interrupted. This determination may be made by continuously monitoring the energy of the received packet after the received packet is decoded to determine whether the packet transmitter has stopped transmitting the packet in response to the previous Ack. In an aspect, a determination as to whether to send the supplemental Ack may be performed by the Ack / Nack decision module, e.g., 810 illustrated in conjunction with FIG.

At 604, Ack is transmitted by applying a preconfigured boost to the transmit power of at least a portion of the slot through which Ack is transmitted, e.g., as illustrated in FIG. In an aspect, the pre-configured boost may be performed by a boost module, e.g., 812 illustrated in conjunction with FIG.

At 604, when an Ack is transmitted by applying a pre-configured boost to the transmit power of at least a portion of the slot through which Ack is transmitted, the pre-configured boost is applied to the transmit power of the Ack symbol of the slot at 614, It can only be applied to symbols.

At 604, the pre-configured boost may be applied at 616 to the transmit power of the entire slot over which Ack is transmitted.

When the pre-configured boost at 616 is applied to the entire slot, the pre-defined boost P can be applied to the transmit power of all non-TPC symbols in the slot, and the boost of P / 2 can be applied to the TCP symbol and Ack at 618 have. The Ack may be further I-Q multiplexed with TPC symbols. This enables the use of on-off keying. However, through the use of I-Q multiplexing, the TPC can be transmitted per slot, for example, to preserve the current 1500 Hz downlink power control rate of the slots in which Nack is indicated. When an Ack is transmitted, the power for each branch, e.g., I and Q, may change faster than once per slot, e.g., in the Ack symbol. However, the total power for both I and Q varies once per slot. This can reduce the influence on the cubic metric.

At 604, not only slots that are not reserved for Acks but also Nack are transmitted can be transmitted without changing the transmit power. To prevent discontinuity in transmit power, Nack can be transmitted using a dummy symbol rather than using zero transmit power. The Ack may be transmitted using the same symbol or may be transmitted at a higher power level. As another option, Ack may be transmitted using a different symbol than Nack. For example, Ack may be transmitted using +1 while Nack is transmitted using -1. This may make it easier for the receiver to determine either Ack or Nack when decoding the transmission.

At 606, Ack is transmitted by modulating the codeword pattern with symbols that are not normally transmitted in the slot. In an aspect, the modulation may be performed by a modulation module, e. G., 814 illustrated in connection with FIG.

The pattern of symbols may be modulated at 620 to provide orthogonal binary codewords. Thus, the modulation may provide a pilot symbol pattern for Ack, as opposed to modulating orthogonal binary codewords, e.g., Nack. The pattern may contain the same number of +1 and -1 symbols for a subset of DPCCH symbols that are normally transmitted in a slot. For example, when symbols p1, p2, p3, p4, p5, p6 are normally transmitted in a particular slot, the pattern includes orthogonal codewords p1, p2, p3, -p4, While Nack will be indicated by transmitting the symbols without modulation, for example, p1, p2, p3, p4, p5, p6. 7, the receiver computes the vectors of received pilots r1, r2, r3, r4, r5, r6 and the two orthogonal vectors [1 1 1 1 1 1] and [ 1-1-1], it is possible to distinguish Ack from Nack.

Thus, as noted, Nack can be transmitted without changing the pattern of symbols.

In addition to modulating by the codeword pattern of symbols, similar to the boost applied at 604, Ack can be transmitted using the boosted transmit power in slots where Ack is signaled.

The symbols modulated by the codeword pattern may include at least one of pilot symbols, TCP symbols and TFCI symbols.

The symbols modulated by the codeword pattern may initially include any of the pilot symbols and TPC symbols, and the symbols may be extended to include the TFCI once the TFCI symbols are decoded by their receiver. For example, the symbols to be modulated may be extended to include TFCI symbols in the determination that the TFCI has been decoded by its receiver. For example, this determination can be made by receiving an Ack over the downlink.

The Ack can be distributed over a number of pilot symbols. This reduces the additional power requirement to transmit the Ack. Transmitting code word patterns through pilot symbols avoids reserving slots in which the TPC field is replaced by the Ack field, which causes the TPC field to be transmitted per slot to preserve the 1500 Hz downlink power control rate.

When the pattern of symbols includes TPC symbols, symbols representing 10 and 01 may be used to indicate Ack. In this case, modulation by orthogonal vectors may be applied only to TPC fields instead of pilots or TFCIs. This allows the pilot to be used as a phase reference for demodulating the resulting TPC / Ack-Nack field. For example, if the TPC field has two bits, the current specification requires a transmission of 00 or 11 to indicate an up or down command. Unused values 10 and 01 may be used to multiplex the Ack information with the TPC. For example, a value of 10 may indicate an Ack and a TPC up command, while a value of 01 may indicate an Ack and a TPC down command. Values < RTI ID = 0.0 > 00 < / RTI > and < RTI ID = 0.0 > 11 < / RTI >

The Ack may be transmitted at 608 via the DPDCH. The power ratio between the DPDCH and the DPCCH may be increased in a slot in which Ack is transmitted in proportion to the value otherwise used at 624. Even under normal operation, for example when the Ack is not transmitted, the power ratio may vary depending on the packet type transmitted. Thus, in order to signal Ack, this fixed increase in the power ratio between the DPDCH and the DPCCH versus the fixed power ratio between the DPDCH and the DPCCH can be used to mean Ack or is normally transmitted for a particular packet type being transmitted, . The power ratio between DPDCH and DPCCH, which is used to mean Ack, may be a predetermined ratio. Regardless of whether a fixed power ratio or an increase in power is used, the value of the power ratio amount may differ depending on whether or not the DPDCH is determined to be decoded. In an aspect, transmission over the DPDCH is performed by a DPDCH module, e.g., 816 of FIG.

By using the DPDCH to transmit the Ack rather than transmitting the Ack via the individual spreading code, the influence on the cubic metric caused by the spreading code is prevented. It is also avoided that the receiver needs to monitor the reception conditions for this additional spreading code.

The Ack may be transmitted at 626 by reusing the DPDCH after determining that the DPDCH has been decoded. If the DPDCH was already decoded and acknowledged, the transmitter would have turned off the DPDCH transmissions. Hence, then, the DPDCH can be reused to transmit the Ack. The Ack transmission may be delayed until a determination is made that the DPDCH has been decoded. This increases the reliability of Ack.

The Ack can be transmitted using a predetermined set of symbols. In another aspect, the Ack may be transmitted using the transmitted symbols if the DPDCH has not yet been decoded. In another aspect, the Ack can be transmitted using a function of these symbols to be transmitted if the DPDCH has not yet been decoded, e.g., using negative acknowledgments of the transmitted symbols.

If, for example, the downlink DPDCH has already been decoded, the Ack power can be spread over multiple DPDCH symbols rather than concentrating very high transmit power on a single Ack symbol, thus reducing harmful RF effects. This also makes it possible to transmit an Ack in any slot, thereby reducing the Ack delay compared to situations where an Ack can only be transmitted in a specific spare subset of slots.

The transmission may be at a predetermined power offset T2P for the DPCCH, which need not be the same as the normal DPDCH T2P used for other slots for which Ack is not transmitted. Although the DPDCH transmission has not yet been decoded, Ack can be signaled in its corresponding slot by increasing the DPDCH T2P for that slot. This increase will make it more difficult to detect when the DPDCH is compared to the situation when the DPDCH was already decoded if the detector was simply faced with detecting the presence or absence of the DPDCH. This can be compensated for by using a sufficiently large T2P increase. The value of the T2P increase used may also be a function of other parameters such as a spreading factor and these parameters may affect the performance of the receiver subsystem to detect such T2P increase. Detection may be further facilitated by repeating Ack across multiple slots at 612 if possible or until the determination that an Ack has been received. A determination as to whether an Ack has been received may be made by monitoring the receiver power of the downlink data packet to determine that the transmission of the receiver has been interrupted.

Reuse of the DPDCH for Ack may be performed for Ack transmissions on the uplink or for Ack transmissions on the downlink to acknowledge uplink packets to acknowledge downlink packet transmissions.

The aspects described in connection with FIG. 6 may be applied to transmit an Ack over UL or DL, for example over a UL or DL DPDCH / DPCCH.

7 is a flow diagram of a method 700 of wireless communication. The method may be performed by a wireless device that transmits packets of wireless communication, such as a UE or a Node B. In an aspect, the device may be the device 902 described in connection with FIG. The device may send packets to the receiving device, e.g., 950 of FIG. 9 or 802 of FIG.

At 602, the device sends wireless communication to, for example, a receiving device. This may include initiating transmission of the packet. In an aspect, such transmission may be performed by a transmission module, e.g., 908 illustrated in FIG.

At 704, the device receives an Ack for transmission. In an aspect, reception is performed by a receiving module, e.g., 904 of FIG. Ack may be received as a transmission using at least one of a pre-configured boost applied to the transmit power of at least a portion of the slot through which the Ack is transmitted, modulation by a codeword pattern of symbols normally transmitted in the slot, and transmission over the DPDCH have.

Acks may be received on specific slots of the R99 uplink channel for traffic channels transmitted on the R99 downlink channel. The R99 uplink channel may comprise a DPCCH channel. The Ack may be received via UL or DL.

The Ack may indicate an early decoding of the packets included in the transmission before receiving the entire packet. Thus, at 706, the device may suspend transmission of the packet before transmitting the entire packet, in response to receiving the Ack notifying the device that the receiving device has already decoded the packet. For example, the transmission module 908 may stop transmission based on a determination by the Ack / Nack detection module 910 that an Ack has been received.

When an Ack is received as a transmission with a pre-configured boost applied to the transmit power of at least a portion of the slot through which Ack is transmitted, the boost may be applied to the transmit power of the Ack symbol in the slot. In an aspect, the device may, at 708, use pilot symbols transmitted in the same slot as Ack over the DPCCH as a phase reference for decoding Ack. In an aspect, use of pilot symbols as a phase reference may be performed by an Ack / Nack detection module, e.g., 910, to detect Ack. In another aspect, the device may modify the receiver algorithms at 710, taking into account the boost applied to the transmit power of the Ack when it is determined that Ack was transmitted in the slot. The modification may be performed by a receiver modification module, e.g., 912 of FIG. In another aspect, the device may, at 712, compute the transmit powers of these other channels based on the T2P ratios of the transmit power without boost and the transmit powers of the other channels. In an aspect, computing of the transmit powers of the other channels may be performed by a transmit power module, e.g., 914 of FIG.

In yet another aspect, Ack may be received as a transmission with a pre-configured boost applied to the transmit power of at least a portion of the slot through which Ack is transmitted, and the boost is applied to the transmit power of the entire slot over which the Ack is transmitted.

In yet another aspect, Ack may be received as a transmission with a pre-configured boost applied to the transmit power of at least a portion of the slot through which Ack is transmitted. The pre-defined boost P may be applied to the transmit power applied to all non-TPC symbols in the slot, and the boost of P / 2 may be applied to TPC symbols and Ack. The Ack can be I-Q multiplexed with the TPC symbol.

Slots that are not reserved for Ack and slots where Nack is transmitted may be received as transmissions without changing the transmission power.

When an Ack is received as a transmission with modulation by a codeword pattern of symbols normally received in a slot, the codeword pattern may be modulated to provide orthogonal binary codewords for Ack, as opposed to Nack. For example, the codeword pattern may include the same number of +1 and -1 symbols for a subset of DPCCH symbols that are normally received in a slot. Nack can be received without changing the symbols. At 714, the device can decode the Ack by comparing the energies of the received Ack with the two orthogonal vectors. In an aspect, the decoding may be performed by an Ack / Nack detection module, e.g., 910 of FIG. 9, to detect Ack.

 An Ack with modulation by a codeword pattern of symbols may also be received with a boosted transmit power in the slots to which Ack is signaled.

The symbols that are modulated by the codeword pattern may include at least one of pilot symbols, TPC symbols, and TFCI symbols. Symbols modulated by a codeword pattern including pilot symbols may be distributed over a plurality of pilot symbols.

Symbols modulated by a codeword pattern comprising TPC symbols may comprise one of the symbols representing 10 and 01 as described in connection with FIG. At 716, the device may use the pilot as a phase reference for demodulating the TPC symbols to decode the Ack. In an aspect, use of the pilot may be performed by an Ack / Nack detection module, e.g., 910 of FIG. 9, to detect Ack.

When the Ack is received as a transmission over the DPDCH, one of the fixed power ratio between the DPDCH and the DPCCH and the power ratio between the DPDCH and the DPCCH is proportional to the value that would otherwise be used, e.g., Ack in the slot where the Ack is received . The power ratio between DPDCH and DPCCH, which is used to mean Ack, can be predetermined. Whether a fixed power ratio or an increase in power ratio is used, the value of the power ratio may differ depending on whether the DPDCH is decoded or not.

The Ack may be received as a reuse of the DPDCH after the DPDCH is decoded. In an aspect, Ack may be received as a transmission using a predetermined set of symbols. In another aspect, Ack may be received as a transmission using symbols that would have been transmitted if the DPDCH has not yet been decoded. In another aspect, Ack can be received as a transmission using a function of symbols that would have been transmitted if the DPDCH has not yet been decoded.

FIG. 8 is a conceptual data flow diagram 800 illustrating the flow of data between different modules / means / components in an exemplary device 802. FIG. The device may be a device that receives wireless communications of packets as described in connection with the aspects of FIG. The device may be, for example, a UE or a Node B. Apparatus 802 includes a receiving module 804 that receives transmissions from a transmitting device 850. The transmitting device 850 is a device, e.g., a UE or a Node B, for transmitting packets of wireless communication. Apparatus 802 includes a decoding module 806 that attempts to early decode packets prior to reception of a silent transmission, and an Ack associated with the received transmission, e.g., a transmission that transmits an Ack of early decoding once early decoding is performed Module 808. < RTI ID = 0.0 > The Ack is transmitted to the transmitting device 850 by the transmitting module 808. As described in connection with FIG. 6, Ack includes applying a pre-configured boost to the transmit power of at least a portion of the slot through which Ack is transmitted, modulating symbols normally transmitted in the slot with a codeword pattern, and And transmitting the Ack via the DPDCH.

The device 802 may further include an Ack / Nack determination module 810 that determines whether to repeat the Ack. The determination may be based on whether a previous Ack has been received, for example it may include an additional determination as to whether or not the transmission of the packet by the transmitting device 850 has been aborted.

6, device 802 may further include a boost module 812 that applies a pre-configured boost to the transmit power of at least a portion of the slot through which Ack is transmitted.

The apparatus may further comprise a modulation module 814 for modulating symbols normally transmitted in the slot by a code word pattern to indicate Ack as described in connection with FIG.

The apparatus may further include a DPDCH module 816 for transmitting an Ack over the DPDCH, for example by reusing the DPDCH once the DPDCH is decoded, as described in connection with FIG.

The apparatus may include additional modules that perform each of the steps of the algorithm in the above-described flowcharts of Fig. Thus, each step in the above-described flowcharts of FIG. 6 may be performed by a module, and the device may include one or more of these modules. The modules are specifically configured to perform the mentioned processes / algorithms and are implemented by a processor configured to perform the mentioned processes / algorithms and stored in a computer-readable medium for implementation by a processor, or a portion thereof May be one or more hardware components that perform the combination.

9 is a conceptual data flow diagram 900 illustrating the flow of data between different modules / means / components of the exemplary device 902. Apparatus 902 may be a device that transmits wireless communications as described in connection with aspects of FIG. The device 902 may be, for example, a UE or a Node B. [ The device 902 includes a transmission module 908 that transmits wireless communications to a receiving device 05. The receiving device is a device, e.g., a UE or a Node B, that receives packets of wireless communication. 950 may be similar to the device 802 described with respect to FIG.

Apparatus 902 also includes a receive module 904 that receives an Ack, e.g., an Ack of early decoding, on the transmission from the receiving device 950. Such an Ack may be received before transmission of the entire packet by the transmission module 908. [ Ack may be a pre-configured boost applied to the transmit power of at least a portion of the slot through which Ack is transmitted, a modulation by a codeword pattern of symbols to be normally transmitted in a slot, and a transmission via a DPDCH Lt; / RTI > may be received as one of the transmissions using any.

The apparatus may further include an Ack / Nack detection module 810 for determining Ack. Once an Ack of early decoding is received, the transmission module 908 may stop the transmission of the packet, as determined by the Ack / Nack detection module 910. Depending on the manner in which the Ack is transmitted, the Ack / Nack detection module 910 may use any of the pilot symbols transmitted in the same slot as the Ack over the DPCCH as a phase reference for decoding Ack and decode the Ack Ack may be determined using the pilot as a phase reference to demodulate the modulated pattern of TPC symbols to decode the Ack, for example.

Apparatus 902 includes a receiver modification module (e. G., A receiver modification module) 910 that modifies receiver algorithms to account for the boost applied to the transmit power of Ack when, for example, the Ack / 912). The apparatus may include a transmit power module 914 that computes the transmit powers of the other channels based on the T2P ratios of the transmit power without boost and the transmit powers of the other channels. In an aspect, computing of the transmit powers of the other channels may be performed by transmit power module 914. [

The apparatus may include additional modules that perform each of the steps of the algorithm in the flowcharts described above in Fig. Thus, each step in the above-described flowcharts of FIG. 7 may be performed by a module, and the device may include one or more of these modules. The modules are specifically configured to perform the mentioned processes / algorithms and are implemented by a processor configured to perform the mentioned processes / algorithms and stored in a computer-readable medium for implementation by a processor, or a portion thereof May be one or more hardware components that perform the combination.

As illustrated in FIG. 10, a single device may include both modules for early decoding decoding functions and forwarding functions associated with early decoding, e.g., a single device may transmit Acks of early decoding, And may include modules for receiving Acks.

10 is a diagram 900 illustrating an example of a hardware implementation of an apparatus 802 ' / 902 ' using a processing system 1014. The processing system 1014 may be implemented with a bus architecture generally represented by bus 1024. The bus 1024 may include any number of interconnect buses and bridges depending on the overall design constraints and the particular application of the processing system 1014. The bus 1024 is coupled to the processor 1004 by means of a processor 1004, modules 804, 806, 808, 810, 812, 814, 816, 904, 908, 910, 912 and 914, and a computer-readable medium 1006 Link together various circuits including one or more processors and / or hardware modules. Bus 1024 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known to those skilled in the art and will not be described any further.

The processing system 1014 may be coupled to the transceiver 1010. Transceiver 1010 is coupled to one or more antennas 1020. Transceiver 1010 provides a means for communicating with various other devices via a transmission medium. The processing system 1014 includes a processor 1004 coupled to a computer-readable medium 1006. The processor 1004 is responsible for general processing, including the execution of software stored on the computer-readable medium 1006. The software, when executed by the processor 1004, causes the processing system 1014 to perform the various functions described above for any particular device. The computer-readable medium 1006 may also be used to store data operated by the processor 1004 when executing the software. The processing system further includes modules 804, 806, 808, 810, 812, 814, 816, 904, 908, 910, 912 and 914. The modules may be software modules running on processor 1004 and resident / stored in computer readable medium 1006, one or more hardware modules coupled to processor 1004, or any combination thereof. When the device 802 'or 902' is a Node B, the processing system 1014 may be a component of the Node B 1010 and may be coupled to the memory 442 and / or the TX processor 420, the RX processor 438, Controller / processor 440. < RTI ID = 0.0 > When the device 802 'or 902' is a UE, the processing system 1014 may be a component of the UE 450 and may comprise at least one of the TX processor 480, the RX processor 470 and the controller / processor 490 . ≪ / RTI >

The various illustrative logical blocks, modules, and circuits described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array Or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but, in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. Additionally, at least one processor may include one or more modules operable to perform one or more of the steps and / or operations described above.

In addition, the steps of the algorithm or method described in connection with the aspects disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. Alternatively, the storage medium may be integrated into the processor. In addition, in some aspects, the processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal. Additionally, in some aspects, steps and / or operations of the method or algorithm may be performed on one or more of the codes and / or instructions on the machine readable medium and / or computer readable medium that may be incorporated into the computer program product Or may reside as any combination or set.

In one or more aspects, the functions described may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted via one or more instructions or code on a computer-readable medium. Computer-readable media includes both communication media and non-transitory computer storage media including any medium that facilitates transfer of a computer program from one place to another. The storage medium may be any available media that can be accessed by a computer. By way of example, and not limitation, such non-transitory computer readable media may be embodied in a computer-readable medium such as RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, Program code means, and any other medium that can be accessed by a computer. Also, any connection means is appropriately referred to as a computer-readable medium. For example, if the software is transmitted from a web site, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, Wireless technologies such as coaxial cable, fiber optic cable, twisted pair, DSL, or infrared, radio, and microwave are included within the definition of the medium. The discs and discs used herein may be a compact disc (CD), a laser disc, an optical disc, a digital versatile disc (DVD), a floppy disc, Ray disc in which discs usually reproduce data magnetically, while discs reproduce data optically using lasers. Combinations of the above should also be included within the scope of computer-readable media.

Various aspects of a telecommunication system have been presented in connection with a W-CDMA system. As those skilled in the art will readily appreciate, the various aspects described throughout this disclosure may be extended to other telecommunications systems, network architectures, and communication standards.

By way of example, various aspects may be extended to other UMTS systems such as TD-SCDMA and TD-CDMA. Various aspects may also be used for long term evolution (LTE) (in FDD, TDD or both modes), LTE-Advanced (LTE-A), CDMA 2000, EV-DO Systems using Evolution-Data Optimized, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UltraWideband (UWB), Bluetooth and / Systems. ≪ / RTI > The actual telecommunications standard, network architecture and / or communication standard used will depend on the overall design constraints imposed on the particular application and system.

It should be understood that the particular order or hierarchy of steps in the disclosed methods is exemplary of exemplary processes. It should be understood that, based on design preferences, a particular order or hierarchy of steps in the methods may be rearranged. The appended method claims present elements of the various steps in a sample order, and are not intended to be limited to the particular order or hierarchy presented, unless specifically quoted herein.

The previous description is provided to enable those skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects. Accordingly, it is not intended that the claims be limited to the aspects disclosed herein, but should be accorded the broadest interpretation so as to encompass the claims, wherein elements referred to singularly are, unless specifically so stated, " Quot; is intended to mean " one or more, " Unless specifically stated otherwise, the term "part" refers to one or more. The phrase referring to "at least one" of the list of items refers to any combination of these items including single members. As an example, at least one of "a, b, or c" b; c; a and b; a and c; b and c; a, b and c. All structural and functional equivalents of elements of the various aspects described throughout this disclosure which are known or later known to those skilled in the art are expressly incorporated herein by reference and are intended to be included in the claims. Further, any disclosure disclosed herein is not intended to be in the public domain, whether or not such disclosure is expressly recited in a claim. It is to be understood that any element of any claim, whether expressly referred to as a " means for "or " in step" 35 USC It shall not be construed in accordance with the provisions of §112, sixth paragraph.

While the foregoing disclosure discusses exemplary aspects and / or embodiments, various changes and modifications may be made without departing from the scope of the described aspects and / or embodiments defined by the appended claims, . In addition, although elements of the described aspects and / or embodiments may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated. Additionally, all or portions of any aspect and / or embodiment may be utilized as all or part of any other aspect and / or embodiment, unless otherwise stated.

Claims (40)

A method of wireless communication,
Receiving a transmission;
Applying a pre-configured boost to the transmit power of at least a portion of the slot to which acknowledgment (Ack) is transmitted; modulating symbols normally transmitted in the slot with a codeword pattern; and modulating a dedicated physical data channel (DPDCH) And transmitting the Ack for the transmission using at least one of transmitting the Ack through the Ack. 2. The method of claim 1, wherein the Ack is transmitted on specific slots of an R99 uplink channel for traffic packets transmitted on an R99 downlink channel, the R99 uplink channel comprising a DPCCH , A method of wireless communication. 2. The method of claim 1, further comprising: early decoding a packet included in the transmission prior to receiving the entire packet, the Ack indicating that the packet was decoded prematurely; And
Determining whether an additional Ack should be transmitted, the determination being based on whether the transmission of the packet has been aborted. 2. The method of claim 1, wherein the Ack is transmitted over an UL. 2. The method of claim 1, wherein the Ack is sent over a DL. The method of claim 1, wherein the Ack is transmitted by applying a pre-configured boost to the transmit power of at least a portion of the slot through which the Ack is transmitted, the boost being applied to the entire slot to which the Ack is transmitted, Applied to transmit power;
Slots not transmitted for the Ack and slots for which a negative acknowledgment (Nack) is transmitted are transmitted without changing the transmitter power. 2. The method of claim 1, wherein the Ack is transmitted by applying a pre-configured boost to the transmit power of at least a portion of a slot through which the Ack is transmitted;
The pre-defined boost P is applied to the transmit power applied to all non-TPC symbols in the slot;
A boost of P / 2 is applied to the transmitter power control (TPC) symbols and the Ack; And
Wherein the Ack is in-phase-quadrature (IQ) multiplexed with the TPC symbol. 2. The method of claim 1, wherein the Ack is transmitted by modulating the symbols normally transmitted in the slot according to a codeword pattern, the codeword pattern comprising an orthogonal binary codeword for Ack opposite to a negative acknowledgment (Nack) Wherein Nack is transmitted without changing the modulated symbols. 9. The method of claim 8, wherein the code word pattern comprises the same number of +1 and -1 symbols for a subset of DPCCH symbols normally transmitted in the slot. 9. The apparatus of claim 8, wherein the symbols modulated by the codeword pattern comprise at least one of pilot symbols, transmitter power control (TPC) symbols, and transport format combination indicator (TFCI) symbols;
When the symbols to be modulated by the codeword pattern include pilot symbols, the symbols may include TFCI symbols in the determination that the TFCI has been decoded by its receiver or that the Ack is distributed over multiple pilot symbols Expand; And
Wherein when the symbols modulated by the codeword pattern comprise TPC symbols, the Ack comprises one of the symbols representing 10 and 01. 2. The method of claim 1, wherein the Ack is transmitted on a dedicated physical data channel (DPDCH), and the power ratio between the DPDCH and the DPCCH is proportional to a value used in another manner, A method of wireless communication that is increased. 12. The method of claim 11, wherein one of the fixed power ratio between the DPDCH and the DPCCH and the increase of the power ratio between the DPDCH and the DPCCH is used to denote the Ack, and the value of the fixed power ratio or the increase of the power ratio, Or < RTI ID = 0.0 > and / or < / RTI > The method of claim 1, wherein the Ack is transmitted after re-using a dedicated physical data channel (DPDCH) after determining that the DPDCH is decoded;
In the Ack,
A predetermined set of symbols;
Symbols transmitted when the DPDCH is not yet decoded;
A function of symbols transmitted when the DPDCH is not yet decoded; And
Lt; RTI ID = 0.0 > DPDCH < / RTI > is decoded. 18. A computer program product comprising a computer-readable medium having stored thereon processor-readable instructions,
The processor-readable instructions cause the computer to:
Receive a transmission; And
Applying a pre-configured boost to the transmit power of at least a portion of the slot to which acknowledgment (Ack) is transmitted; modulating symbols normally transmitted in the slot with a codeword pattern; and modulating a dedicated physical data channel (DPDCH) And transmitting the Ack on the transmission using at least one of transmitting the Ack through the Ack. A receiver configured to receive a transmission; And
Applying a pre-configured boost to the transmit power of at least a portion of the slot to which acknowledgment (Ack) is transmitted; modulating symbols normally transmitted in the slot with a codeword pattern; and modulating a dedicated physical data channel (DPDCH) Wherein the transmitter is configured to transmit an Ack for the transmission using at least one of transmitting the Ack over the Ack. 16. The apparatus of claim 15, further comprising: a decoder configured to prematurely decode a packet included in the transmission prior to receiving the entire packet, the Ack indicating that the packet was decoded prematurely; And
Further comprising at least one of an Ack decision module configured to determine whether to send an additional Ack. 16. The method of claim 15,
A portion of a slot through which the Ack is transmitted, the boost applied to a transmit power of the Ack symbol of the slot;
The transmission power of the entire slot through which the Ack is transmitted and
The Ack is transmitted by applying a pre-configured power boost to at least one of at least a portion of a slot to which it is transmitted,
A pre-defined boost P is applied to the transmit power applied to all non-TPC symbols of the slot, a boost of P / 2 is applied to the transmitter power control (TPC) symbols and the Ack,
Wherein the Ack is in-phase-quadrature (IQ) multiplexed with the TPC symbol. 16. The method of claim 15, wherein the Ack is transmitted by modulating symbols normally transmitted in the slot according to a codeword pattern, wherein the codeword pattern includes an orthogonal binary codeword for Ack opposite to a negative acknowledgment (Nack) Wherein the device is modulated to provide at least one of the following: Means for receiving a transmission;
Applying a pre-configured boost to the transmit power of at least a portion of the slot to which acknowledgment (Ack) is transmitted; modulating symbols normally transmitted in the slot with a codeword pattern; and modulating a dedicated physical data channel (DPDCH) And means for transmitting an Ack on the transmission using at least one of transmitting the Ack over the Ack. 20. The apparatus of claim 19, further comprising means for early decoding a packet included in the transmission prior to receiving the entire packet, the Ack indicating that the packet was early decoded. 21. The apparatus of claim 20, further comprising: means for determining whether to send an additional Ack, the determination being based on whether transmission of the packet has been aborted. A method of wireless communication,
Transmitting wireless communication; And
And receiving an acknowledgment (Ack) on the transmission,
The Ack includes at least a pre-configured boost applied to the transmit power of at least a portion of the slot through which the Ack is transmitted, modulation by a codeword pattern of symbols normally transmitted in the slot, and transmission over a dedicated physical data channel (DPDCH) Lt; RTI ID = 0.0 > 1, < / RTI > 23. The method of claim 22, wherein the Ack is transmitted on specific slots of an R99 uplink channel for traffic packets transmitted on an R99 downlink channel, the R99 uplink channel comprising a DPCCH , A method of wireless communication. 24. The method of claim 22, wherein the Ack indicates an early decoding of a packet included in the transmission before receiving the entire packet,
The method further comprising aborting transmission of the packet upon receipt of the Ack. 23. The method of claim 22 wherein the Ack is received as a transmission with a pre-configured boost applied to a transmit power of at least a portion of a slot to which the Ack is transmitted, the boost applied to a transmit power of the Ack symbol of the slot, Slots that are not reserved for the Ack and slots for which a negative acknowledgment (Nack) is transmitted are received as transmissions with no change in the transmission power,
The method comprises:
Using a pilot symbol transmitted in the same slot as the Ack on a dedicated physical control channel (DPCCH) as a phase reference for decoding the Ack;
Modifying the receiver algorithms to account for the boost applied to the transmit power of the Ack when it is determined that the Ack has been transmitted in the slot; And
Computing the transmit powers of the other channels based on the T2P ratios of the transmit power without boost and the transmit powers of the other channels. 23. The method of claim 22, wherein the Ack is received as a transmission with a pre-configured boost applied to a transmit power of at least a portion of a slot through which the Ack is transmitted;
The pre-defined boost P is applied to the transmit power applied to all non-TPC symbols in the slot;
A boost of P / 2 is applied to the transmitter power control (TPC) symbols and the Ack; And
Wherein the Ack is in-phase-quadrature (IQ) multiplexed with the TPC symbol. 23. The method of claim 22, wherein the Ack is received as a transmission with a modulation by a codeword pattern of symbols normally transmitted in the slot, the codeword pattern comprising an orthogonal 2 < RTI ID = 0.0 > / RTI > code words,
The method further comprises decoding the Ack by comparing the received Ack's energies with two orthogonal vectors;
Wherein the symbols modulated by the codeword pattern comprise at least one of pilot symbols, transmit power control (TPC) symbols, and transport format combination indicator (TFCI) symbols. 28. The apparatus of claim 27, wherein the symbols modulated by the codeword pattern comprise TPC symbols, the Ack comprising one of the symbols representing 10 and 01;
The method further comprising using a pilot as a phase reference for demodulating the TPC symbols to decode the Ack. 23. The method of claim 22, wherein the Ack is received as a transmission over a dedicated physical data channel (DPDCH) and the power ratio between the DPDCH and the DPCCH is transmitted in proportion to a value used in another manner Lt; / RTI >
One of a fixed power ratio between the DPDCH and the DPCCH and an increase of the power ratio between the DPDCH and the DPCCH is used to denote the Ack, and the value of the fixed power ratio or the increase of the power ratio depends on whether the DPDCH is decoded , A method of wireless communication. 23. The method of claim 22, wherein the Ack is received as a reuse of the DPDCH after the dedicated physical data channel (DPDCH) is decoded;
In the Ack,
Transmission using a predetermined set of symbols;
Transmission using the transmitted symbols if the DPDCH has not yet been decoded; And
And if the DPDCH is not yet decoded, a transmission using a function of the transmitted symbols. 18. A computer program product comprising a computer-readable medium having stored thereon processor-readable instructions,
The processor-readable instructions cause the computer to:
Transmitting wireless communication; And
And to receive an acknowledgment (Ack) on the transmission,
The Ack includes at least a pre-configured boost applied to the transmit power of at least a portion of the slot through which the Ack is transmitted, modulation by a codeword pattern of symbols normally transmitted in the slot, and transmission over a dedicated physical data channel (DPDCH) A computer program product received as said transmission using one. A transmitter configured to transmit wireless communications; And
And a receiver configured to receive an acknowledgment (Ack) on the transmission,
The Ack includes at least a pre-configured boost applied to the transmit power of at least a portion of the slot through which the Ack is transmitted, modulation by a codeword pattern of symbols normally transmitted in the slot, and transmission over a dedicated physical data channel (DPDCH) Wherein the transmission is received as the transmission using one. 33. The apparatus of claim 32, wherein the transmitter is further configured to abort transmission of the packet when the Ack indicates early decoding of a packet included in the transmission before receiving the entire packet. 34. The method of claim 32 wherein the Ack is received as a transmission with a pre-configured boost applied to a transmit power of at least a portion of a slot through which the Ack is transmitted, the boost applied to a transmit power of the Ack symbol of the slot,
The device
An Ack detection module configured to use a pilot symbol transmitted in the same slot as the Ack on a dedicated physical control channel (DPCCH) as a phase reference for decoding the Ack;
A receiver modification module configured to modify receiver algorithms to account for the boost applied to the transmit power of the Ack when it is determined that the Ack has been transmitted in the slot; And
Further comprising at least one of a transmit power module configured to compute transmit powers of the other channels based on T2P ratios of transmit power without boost and transmit powers of other channels. 33. The method of claim 32, wherein the Ack is received as a transmission with a modulation by a codeword pattern of symbols normally received in the slot, the codeword pattern comprising an orthogonal 2 < RTI ID = 0.0 > / RTI > code words,
The apparatus includes means for decoding the Ack by at least one of comparing the energies of the received Ack with two orthogonal vectors and using the pilot as a phase reference for demodulating the TPC symbols to decode the Ack. And a configured Ack detection module. Means for transmitting wireless communications; And
Means for receiving an acknowledgment (Ack) on the transmission,
The Ack includes at least a pre-configured boost applied to the transmit power of at least a portion of the slot through which the Ack is transmitted, modulation by a codeword pattern of symbols normally transmitted in the slot, and transmission over a dedicated physical data channel (DPDCH) Wherein the transmission is received as the transmission using one. 37. The apparatus of claim 36, further comprising means for using pilot symbols transmitted in the same slot as the Ack on a dedicated physical control channel (PDCCH) as a phase reference for decoding the Ack. 37. The apparatus of claim 36, further comprising means for modifying receiver algorithms to account for the boost applied to the transmit power of the Ack when it is determined that the Ack was transmitted in the slot. 37. The apparatus of claim 36, further comprising means for computing transmit powers of the other channels based on T2P ratios of transmit power without boost and transmit powers of other channels. 33. The method of claim 32, wherein the Ack is received as a transmission with modulation by a codeword pattern of symbols that would normally have been received in the slot;
The codeword pattern is modulated to provide orthogonal binary codewords for Ack, as opposed to a negative acknowledgment (Nack)
The apparatus comprises:
Means for decoding the Ack by comparing energies of received Ack with two orthogonal vectors; And
And means for using a pilot as a phase reference for demodulating the TPC symbols to decode the Ack, wherein the symbols modulated by the codeword pattern comprise TPC symbols and the Ack is at 10 And < RTI ID = 0.0 > 01. ≪ / RTI >

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