TWI427958B - Method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks simultaneously with multiple h-arq processes - Google Patents

Description

Method and device for simultaneously selecting multiple transmission formats and transmitting multiple transmission block groups by multiple H-ARQ method

The present invention is directed to a wireless communication system. More particularly, the present invention relates to a method of simultaneously transmitting a multi-transport block (TB) in a transmission time interval (TTI) by selecting a multi-transport format in a wireless communication system and using a multi-hybrid automatic repeat request (H-AQR) process. Device.

The evolution of High Speed Packet Access (HSPA+) and Universal Terrestrial Radio Access (UTRA) and Universal Terrestrial Radio Access Network (UTRAN) Long Term Evolution (LTE) aims to develop a wireless access network for high Data rate, low latency and packet optimization as well as improved system capacity and coverage. To achieve these goals, the evolution of wireless interfaces and wireless network architectures is being considered. In HSPA+, the null interfacing technology will still be based on code division multiple access (CDMA), but with a more efficient physical layer structure including independent channelization coding (different from channel quality) and multiple input multiple output. (MIMO). In LTE, orthogonal frequency division multiple access (OFDMA) and frequency division multiple access (FDMA) are proposed as null interplane technologies for downlink and uplink, respectively.

H-ARQ has been adopted by several wireless communication standards including the 3rd Generation Partnership Project (3GPP) and 3GPP2. In addition to the Radio Link Control (RLC) layer automatic repeat request (ARQ) function, H-ARQ can increase throughput, compensate for link adaptation errors, and provide efficient transmission rates over the channel. By setting the H-ARQ function in Node-B instead of the Radio Network Controller (RNC), the H-ARQ feedback (ie, positive acknowledgement (ACK) or negative acknowledgement (NACK)) can be significantly reduced. delay. A User Equipment (UE) receiver may combine the originally transmitted soft bits and the subsequently retransmitted soft bits to achieve higher Block Error Rate (BLER) performance. Chase consolidation or incremental redundancy can be implemented.

Asynchronous H-ARQ is used in High Speed Downlink Packet Access (HSDPA) and Synchronous H-ARQ is used in High Speed Uplink Packet Access (HSUPA). In both HSDPA and HSUPA, the radio resource allocated for transmission is the amount of coding in a certain frequency band based on a channel quality indicator (CQI). There is no difference in channelization coding. Therefore, an HSDPA Media Access Control (MAC-hs) stream or a HSUPA Media Access Control (MAC-e/es) stream that is multiplexed from multiple dedicated channel MAC (MAC-d) streams is assigned to an H. - ARQ processing and attaching a cyclic redundancy check (CRC) to a transport block.

The new entity layer attributes introduced in HSPA+ include MIMO and different channelization coding. The new entity layer attributes introduced in LTE include MIMO and different subcarriers (centralized or decentralized). By introducing these new entity layer attributes, the performance and transport format combination (TFC) selection process of the traditional single H-ARQ scheme should be changed. In the conventional single H-ARQ scheme, only one H-ARQ process is initiated at a time, and in each TTI, it is necessary to determine the TFC of only one transport block. The traditional TFC selection process does not have the function of TFC selection for more than one data block for multiple H-ARQ processing.

The present invention relates to a method and apparatus for using a multiple H-ARQ process in a wireless communication system to select a multiple transmission format and transmit multiple TBs in a TTI. The channel quality of the available physical resources and each of the available physical resources is determined, and H-ARQ processing associated with the available physical resources is identified. Determine the quality of service (QoS) requirements of the higher layer data streams to be transmitted. The higher layer data stream is mapped to at least two H-ARQ processes. The entity transmission parameters and the H-ARQ configuration are determined to support the QoS requirements mapped to the higher layer data streams for each H-ARQ process. The TB is generated from the mapped higher layer data stream according to the entity transmission parameters and H-ARQ configuration of each H-ARQ process, respectively. The TB is simultaneously transmitted via H-ARQ processing.

As referred to below, the term "wireless transmit/receive unit" (WTRU) includes, but is not limited to, user equipment (UE), mobile stations, fixed or mobile subscriber units, pagers, portable telephones, personal digital assistants (PDAs), computers. Or any other type of user device that can operate in a wireless environment. As referred to below, the term "base station" includes but is not limited to a Node B (Node-B), an evolved Node-B (eNB), a site controller, an access point (AP), or is capable of operating in a wireless environment. Any other type of interface connection device.

The present invention is applicable to any wireless communication system including, but not limited to, Wideband Coded Multiple Access (WCDMA), CDMA2000, HSPA+, LTE, OFDM, MIMO or OFDM/MIMO for 3GPP systems.

Features of the invention may be incorporated into an integrated circuit (IC) or may be configured in a circuit comprising a plurality of interconnected elements.

Different antenna spatial beam or channelization codes can experience different channel qualities, which can be represented by CQI feedback. The same Adaptive Modulation and Coding (AMC) can be used for all subcarrier, spatial beam or channelized coding, which are of independent subcarrier, spatial beam or channelized coding quality, respectively. Alternatively, channel conditions can be used to use different AMCs for different subcarrier, spatial beam or channelization coding to maximize performance.

When using AMCs that rely on subcarriers, spatial beams, or channelization coding, each data block assigned to each subcarrier, spatial beam, or channelization code is associated with a CRC in accordance with the present invention. Otherwise, in the case of a transmission error, since the entire packet is associated with a single CRC, the entire packet allocated to a different subcarrier, spatial beam or channelized code needs to be retransmitted. Retransmission of each data block that has been correctly received will waste valuable wireless resources. Since each antenna can be in different channel conditions, the same conditions are used when using MIMO. Therefore, according to the present invention, when multi-dimensional H-ARQ processing is used with each H-ARQ process corresponding to one or more subcarriers, channelization coding, and transmission antenna (or spatial beam), a single CRC is attached. To each transmission block. In the conventional separate H-ARQ scheme, only one H-ARQ process is initiated at a time, and in each TTI, it is necessary to determine the TFC of only one transport block. The traditional TFC selection process does not have the function of TFC selection for more than one data block for multiple H-ARQ processing to properly support the QoS requirements of higher layer data streams.

1 is a block diagram of an apparatus 100 for transmitting multiple transport blocks (TBs) simultaneously in a transmission time interval (TTI) using multiple H-ARQ processing in accordance with the present invention. The apparatus 100 can be a WTRU, a Node-B, or any other communication device. The apparatus 100 includes a plurality of H-ARQ processes 102a-102n, a plurality of multiplex and link adaptation processors 104a-104n, and a controller 106. Each multiplex and link adaptation processor 104a-104n is associated with an H-ARQ process 102a-102n. Each multiplex and link adaptation processor 104a-104n receives an entity resource configuration (ie, the subcarriers are decentralized or centralized, MIMO antenna configuration, etc.) and CQIs associated with these entity resources.

Each available H-ARQ process 102a-102n is associated with a particular entity resource group. The association of the entity resources with the H-ARQ processes 102a-102n may be dynamically determined, or the association may be configured semi-statically. A network entity (eg, an eNB scheduler) can determine how many physical resources should be allocated. Dynamically reallocating and specific H each time the TFC is selected by the multiplex and link adaptation processors 104a-104n, or each time the H-ARQ processes 102a-102n generate H-ARQ retransmissions for a particular TB -ARQ processes the associated entity resource. The reallocation of the physical resources may be performed based on the CQI of the particular physical resource, or the reallocation of the physical resources may be determined based on the predetermined frequency hopping pattern.

The multiplex and link adaptation processors 104a-104n independently perform link adaptation for each entity resource group and associated H-ARQ processes 102a-102n. Each multiplex and link adaptation processor 104a-104n determines a modulation and coding scheme (MCS), a multiplexed TB, a transmit power requirement, an H-ARQ redundancy version, and a maximum of each TTI retransmission. frequency. This transport information set is provided to each H-ARQ process 102a-102n.

Can be via independent spatial streams in the spatial domain (if MIMO is implemented), independent subcarriers in the frequency domain (if OFDMA or FDMA are implemented), independent channelization coding in the coding domain (if CDMA is implemented), in the time domain An independent time slot in or any combination of the above to define an entity resource. Independent subcarriers can be decentralized or centralized. Channelized coding is an entity resource that can be independently assigned to different TBs. In a CDMA system, different channelization codes can be assigned to transmit one TB or several TBs based on the channel conditions and data rates required for each TB. The maximum number of TBs that can be sent is less than or equal to the maximum number of available channelization codes. When several independent spatial streams, subcarriers, or channelization codes are available, several H-ARQ processes can be used to simultaneously transmit several TBs via different physical resources. For example, if two spatial streams are available in a 2x2 MIMO system, two independent H-ARQ processes can be used to simultaneously transmit two TBs via two spatial streams.

Different physical resources (ie different subcarriers, antenna spatial beams, channelization codes or time slots) can experience different channel qualities. The quality of each physical resource can be determined by one or more CQI measurements. The CQI can be fed back from the communicating party or can be obtained based on channel reciprocity. The CQI can also be represented by the licensed MCS and/or the maximum transport block size.

Controller 106 identifies available physical resources and H-ARQ processing associated with the available physical resources. Since each H-ARQ process 102a-102n is associated with a particular entity resource, the available H-ARQ process is also identified when the available entity resources are identified. The available physical resources and associated H-ARQ processing are determined at the beginning of the common TTI boundary. The association can also be semi-statically configured during multiple TTIs.

Available physical resources are the amount of independent spatial streams, subcarriers, channelization codes, and time slots that can be used for data transmission over a period of time. The available physical resources for a WTRU depend on a number of factors, such as the number of WTRUs that Node-B needs to support in one cell, the interference level from other cells, the WTRU's channel conditions, and the services that the WTRU needs to support. QoS levels (such as priority, potential, fairness, and buffer status), data rates that a WTRU needs to support, and so on.

In accordance with the present invention, multiple H-ARQ processes 102a-102n operate simultaneously and in parallel. Since the H-ARQ processes 102a-102n may employ different numbers of retransmissions for successful transmission, and because the data streams mapped to the H-ARQ processes 102a-102n may have QoS requirements that determine a different number of retransmissions or different TTI sizes, So if the H-ARQ processes are not synchronized with each other, then some H-ARQ may not be available. Any number of H-ARQ processes can be made available in any TTI. In accordance with the present invention, in a common TTI, more than one H-ARQ process and associated entity resource composition is available. The association between H-ARQ processing and physical resources can be coordinated via controller 106.

Controller 106 maps higher layer data streams 108a-108m (i.e., multiple streams of MAC or RLC Protocol Data Units (PDUs)) to at least two multiplex and link adaptation processors 104a-104n and their associated Hs - ARQ processing 102a-102n. In a common TTI for QoS normalization, the same higher layer data streams 108a-108m may be mapped with more than one multiplex and link adaptation processors 104a-104n and H-ARQ processes 102a-102n. The QoS requirements between the H-ARQ processes 102a-102n are common by mapping the same higher layer data stream or higher layer data stream group with multiple H-ARQ processes. In this case, each multiplex and link adaptation processor 104a-104n determines the MCS, transport block size, transmit power, maximum H-ARQ transmission, and transmission parameters based on the CQI of the associated entity resource group for use in The QoS or data flow groups for each transmission of the higher layer data stream are as similar as possible.

Alternatively, the higher layer data streams 108a-108m that can be encapsulated according to QoS requirements and different H-ARQs can also be processed based on the data stream QoS requirements and the CQI associated with the entity resource group allocated to each H-ARQ process. 102a-102n are mapped to achieve unequal error protection. For example, CQI may show that one entity resource group is superior to other entity resource groups. Higher layer data streams with higher QoS requirements can be mapped to H-ARQ processing associated with better physical resources. The number of higher layer data streams to be mapped to a particular H-ARQ process is determined based on QoS requirements, packet size, H-ARQ capacity, etc. of the higher layer data stream. Once the respective higher layer data streams to be transmitted using the particular H-ARQ process are determined, these data streams are multiplexed by the multiplex and link adaptation processors 104a-104n for different H-ARQ processes.

Each multiplex and link adaptation processor 104a-104n receives input (eg, CQI of the allocated physical resource, buffered capacity of the mapped data stream, etc.) and determines entity transmission parameters and H-ARQ configuration to support each An H-ARQ processes the QoS requirements of the mapped higher layer data streams 108a-108m. The entity transmission parameters include: transmission power, modulation and coding scheme, TTI size, transport block size and beamforming mode, subcarrier allocation, MIMO antenna configuration, and the like. The H-ARQ configuration parameters include: H-ARQ identifier, maximum number of retransmissions, redundancy version (RV), CRC size, and the like. The multiplex and link adaptation processors 104a-104n provide H-ARQ parameters to the associated H-ARQ processes 102a-102n.

The multiplex and link adaptation processors 104a-104n may employ the same MCS, transport block size, TTI size, and/or transmit power to all physical resources that are independent of the quality of the physical resources. Alternatively, the multiplex and link adaptation processors 104a-104n may use different MCS, transport block size, TTI size, and/or channel based conditions to transmit power to different physical resources to maximize performance.

When using AMC and H-ARQ operations that rely on physical resources, preferably each data block allocated to each physical resource is associated with a single CRC. With this scheme, the entire packet distributed to different physical resources does not need to be retransmitted in the case of transmission errors because each transport block is associated with a single CRC and processed via a single H-ARQ process 102a-102n.

The multiplex and link adaptation processors 104a-104n then select the appropriate TFC for the TB based on the channel quality indicator and the entity transmission parameters (ie, TB size, TB group size, TTI size, modulation and coding scheme (MCS)). TB is generated from the assigned higher layer data streams 112a-112m after transmission power, antenna beam, subcarrier allocation, CRC size, redundancy version (RV), and data blocks mapped to radio resources, and the like. One or more higher layer data streams can be multiplexed to one TB. A single CRC is attached to each TB for separate error detection and H-ARQ processing. Each TB and associated transmission parameters are provided to the assigned H-ARQ processes 102a-102n. The TB is then transmitted via the assigned H-ARQ processes 102a-102n, respectively.

The parameters supporting multiple H-ARQ processing may be signaled to the recipient before the receiver can use transmission or blind detection techniques to decode the transmission parameters. The resulting TB is sent to the H-ARQ processes 102a-102n with the associated transmission parameters for transmission.

2 is a flow diagram of a method 200 of simultaneously transmitting multiple TBs in a TTI using multiple H-ARQ processes in accordance with the present invention. Channel qualities of available physical resources and available physical resources associated with each H-ARQ process 102a-102n are identified (step 202). The QoS requirements and buffer capacity of the higher layer data streams 112a-112m to be transmitted are determined (step 204). It should be noted that the steps in method 200 may be performed in a different order, and some steps may be performed in parallel. For example, step 204 can be used prior to step 202 or performed synchronously.

Controller 106 may determine the type of higher layer data streams 112a-112m for TFC selection processing based on QoS parameters associated with those higher layer data streams. Controller 106 can also determine the order in which higher layer data streams are served. The processing order can be determined by QoS requirements or absolute priority. Alternatively, a life span time parameter may be determined during the process of determining a duration that the higher layer data packet may remain in the H-ARQ queue, such that the controller 106 may packetize the higher layer data based on the lifetime span time parameter. Prioritize or discard.

The higher layer data streams 112a-112m are mapped by controller 106 to respective H-ARQ processes 102a-102n. The entity transmission parameters and H-ARQ configuration are determined for each of the available H-ARQ processes 102a-102n to support the QoS required to map to the higher layer data streams 112a-112m of each H-ARQ process 102a-102n (step 206) . When more than one H-ARQ process is available for transmission in the TTI, it is necessary to determine which higher layer data stream 112a-112m should be mapped to a different H-ARQ process. The higher layer data streams 112a-112m may or may not have similar QoS requirements.

When the subset of all higher layer data streams 112a-112m or higher layer data streams 112a-112m to be mapped to different H-ARQ processes requires similar QoS, then the QoS provided by H-ARQ processes 102a-102n is normalized. (i.e., in each TTI, the transmission parameters (e.g., MCS, TB size, and transmission power) and H-ARQ configuration are adjusted, and the TFC is selected such that the QoS provided in the H-ARQ processes 102a-102n are similar). QoS normalization between multiple H-ARQ processes 102a-102n may be implemented by adjusting link adaptation parameters (e.g., MCS, TB size, transmission power, etc.) between multiple H-ARQ processes 102a-102n. For example, a higher MCS is assigned to an entity resource with better channel quality, and a lower MCS is assigned to an entity resource with poor channel quality. This can result in different sized multiplexed data blocks for different H-ARQ processing.

Alternatively, when higher layer data streams 112a-112m require different QoS, higher layer data streams 112a-112m may be mapped to H-ARQ processes 102a-102n associated with entity resources, where the entity resources have near matching higher layer data The quality of the QoS requirements for streams 112a-112m. An advantage of using multiple H-ARQ processing is its flexibility for multiplexed logical channels or MAC flows with different QoS requirements for different H-ARQ processes 102a-102n and associated physical resources. When an entity resource indicates that the channel quality is better than other entity resources, the data with higher QoS is mapped to the H-ARQ process associated with the entity resource. This increases the use of physical resources and maximizes system throughput. Alternatively, or in addition, the maximum number of MCS and/or retransmissions may be configured to differentiate the QoS to more closely match the QoS requirements of the logical channel or MAC flow.

After mapping the higher layer data streams 112a-112m to the H-ARQ processes 102a-102n, the higher layer data streams 112a-112m associated with each H-ARQ process 102a-102n are multiplexed, respectively, for The entity transmission parameters and H-ARQ configurations for each H-ARQ process 102a-102n are generated for each H-ARQ process 102a-102n (step 208). The data multiplex for each H-ARQ process 102a-102n can be processed sequentially or in parallel. The TB is then simultaneously transmitted via the associated H-ARQ processes 102a-102n (step 210).

The transmitted TB may or may not be successfully received at the communicating party. The failed TB is retransmitted in the subsequent TTI. Preferably, the size of the retransmitted TB remains the same size that the communicating party performs soft combining. There may be several options for retransmission of a failed TB.

According to the first option, the allocated physical resources for the H-ARQ retransmission of the TB remain unchanged (ie, the failed TB is retransmitted via the same physical resource and H-ARQ processing). The transmission parameters and H-ARQ configuration (ie TFC) can be changed. In particular, link adaptation parameters (eg, antenna selection, AMC, or transmit power) may be changed to maximize the chances of successfully transmitting the retransmitted TB. When the link adaptation parameters are changed for retransmission of a failed TB, the changed parameters may be signaled to the recipient. Alternatively, the receiver may employ a blind detection technique to eliminate the signaling load for the changed parameters.

According to a second option, the physical resources allocated for H-ARQ retransmission of the transport block can be dynamically reallocated (ie, the failed TB is retransmitted on different physical resources and the same H-ARQ process). Redistribution of physical resources may be based on CQI or based on known frequency hopping patterns.

In another option, failed H-ARQ transmissions may be segmented in multiple H-ARQ processing and each transmitted separately in segments to increase the likelihood of successful H-ARQ transmissions. According to this selection, the physical resources used to retransmit the TB are reallocated (ie, the failed TB is sent via different H-ARQ processing). H-ARQ processing for transmitting failed TBs in the previous TTI becomes available for transmission of any other TB in subsequent TTIs. The maximum transmit power, the number of subcarriers or channelization codes, the number or allocation of antennas, and the recommended MCS can be reallocated for retransmission of failed TBs. Preferably, a new licensed TFCS subset can be generated to reflect the physical resource changes for the failed TB. New parameters can be signaled to the recipient to ensure successful reception. Alternatively, a blind detection technique can be employed at the receiving side to eliminate the signaling load for the changed parameters.

Example

1. A method of transmitting multiple TBs in a TTI using multiple H-ARQ processing in a wireless communication system.

2. The method of embodiment 1 includes the step of identifying available physical resources and associated H-ARQ processing.

3. The method of any of embodiments 1-2, comprising the step of obtaining channel quality measurements for each available physical resource.

4. The method of any of embodiments 1-3, comprising the step of mapping at least one higher layer data stream to at least two H-ARQ processes.

5. The method of embodiment 4 includes the steps of determining physical transmission parameters and H-ARQ configurations to support QoS requirements mapped to higher layer data streams for each H-ARQ process.

6. The method of embodiment 5 includes the step of generating a TB from the mapped higher layer data stream based on the entity transmission parameters and the H-ARQ configuration of each H-ARQ process, respectively.

7. The method of embodiment 6 includes the step of simultaneously transmitting TB via H-ARQ processing.

8. The method of any of embodiments 5-7, wherein the entity transmission parameters and the H-ARQ configuration comprise a TFC for each TB.

9. The method of any one of embodiments 2-8 wherein the communication node comprises a plurality of antennas for MIMO and the available physical resources are identified based on the independent spatial data stream.

10. The method of any one of embodiments 2-9 wherein the available physical resources are identified based on independent frequency subcarriers.

11. The method of embodiment 10 wherein the subcarrier is a distributed subcarrier.

12. The method of embodiment 10 wherein the subcarrier is a concentrated subcarrier.

13. The method of any one of embodiments 2-12 wherein the available physical resources are identified based on independent channelization coding.

14. The method of any one of embodiments 2-13 wherein the available physical resources are identified based on different time slots.

15. The method of any one of embodiments 2-14 wherein the association of the entity resource and the H-ARQ process is dynamically determined.

16. The method of any one of embodiments 2-14 wherein the association of the entity resource and the H-ARQ process is configured semi-statically.

17. The method as in any one of embodiments 4-16, further comprising the steps of: selecting a higher layer data stream to be transmitted in the next TTI, thereby mapping only the selected higher layer data stream to H-ARQ deal with.

18. The method of embodiment 17 wherein a packet on each higher layer data stream is assigned a life span time to select a packet for transmission based on the lifetime span time.

19. The method of any one of embodiments 5-18, wherein when the QoS requirements of the higher layer data streams are similar, the entity transmission and the H-ARQ configuration are determined such that QoS between available H-ARQ processes It is similar.

20. The method of embodiment 19, wherein a higher order MCS is used for an H-ARQ process having a higher channel quality, and a lower order MCS is used for an H-ARQ process having a lower channel quality. .

twenty one. The method of any one of embodiments 19-20, wherein the maximum number of retransmissions is allocated for each H-ARQ process based on QoS requirements of higher layer data streams mapped to H-ARQ processing.

twenty two. The method of any one of embodiments 5-18, wherein when the QoS requirements of the higher layer data streams are not similar, each higher layer data stream is mapped to an H-ARQ process associated with the channel quality. The quality of the channel is close to a QoS requirement that matches the higher layer data stream.

twenty three. The method of any one of embodiments 5-18, wherein when the QoS requirements of the higher layer data streams are not similar, the QoS requirements based on a higher layer data stream mapped to the H-ARQ process are H- ARQ processes the maximum number of times a retransmission is allocated.

twenty four. The method of any one of embodiments 2-23, wherein when the transmission of the TB fails, the physical resource mapped to the H-ARQ process is not changed for retransmission of the TB.

25. The method of embodiment 24 wherein the entity transmission and the H-ARQ configuration are changed for retransmission of the TB.

26. The method of embodiment 24 wherein the TB is segmented for retransmission.

27. The method of any one of embodiments 2-23, wherein when the transmission of the TB fails, the physical resource mapped to the TB changes for retransmission of the TB.

28. The method of any one of embodiments 1-27, wherein the wireless communication system is an HSPA+ system.

29. The method of any of embodiments 1-27, wherein the wireless communication system is LTE of a 3G wireless communication system.

30. The method of any of embodiments 2-29, wherein the available physical resources and associated H-ARQ processing are determined at the beginning of the common TTI boundary.

31. The method of any of embodiments 5-30, wherein the entity transmission parameters comprise an MCS for each TB.

32. The method of embodiment 31 wherein an MCS for each TB is selected to differentiate the QoS requirements of the TB.

33. The method of embodiment 31 wherein the MCS for each TB is selected such that the QoS supported in the H-ARQ process is similar.

34. The method of any one of embodiments 5-33 wherein the entity transmission parameter comprises a transport block size for each TB.

35. The method of embodiment 34 wherein a TB size for each TB is selected to distinguish TB QoS requirements.

36. The method of embodiment 34 wherein a TB size for each TB is selected such that the QoS supported between H-ARQ processes is similar.

37. A device for transmitting multiple TBs in a TTI using multiple H-ARQ processes in a wireless communication system.

38. The apparatus of embodiment 37, comprising a complex H-ARQ process.

39. The apparatus of embodiment 38, comprising a controller configured to identify available physical resources and H-ARQ processing associated with the available physical resources, channel quality based on each available physical resource, and higher layer data flow The QoS requirements map at least one higher layer data stream to at least two H-ARQ processes, and determine entity transmission parameters and H-ARQ configurations to support QoS requirements mapped to higher layer data streams for each H-ARQ process.

40. The apparatus of embodiment 39, comprising a complex multiplex and link adaptation processor, each multiplex and link adaptation processor associated with an H-ARQ process and configured to process according to each H-ARQ The entity transport parameters and the H-ARQ configuration generate one TB from the higher layer data stream mapped to the overlay and link adaptation processors.

41. The apparatus of embodiment 40 wherein each multiplex and link adaptation processor is operative to determine a TFC for the mapped higher layer data stream.

42. The apparatus of any one of embodiments 39-41, wherein the controller identifies available physical resources based on independent spatial data streams generated by the plurality of antennas for MIMO.

43. The apparatus of any one of embodiments 39-42 wherein the controller identifies available physical resources based on independent subcarriers.

44. The apparatus of embodiment 43, wherein the subcarrier is a distributed subcarrier.

45. The apparatus of embodiment 43, wherein the subcarrier is a concentrated subcarrier.

46. The apparatus of any one of embodiments 39-45, wherein the controller identifies available physical resources based on independent channelization coding.

47. The apparatus of any one of embodiments 39-46 wherein the available physical resources are identified based on different time slots.

48. The apparatus of any one of embodiments 39-47 wherein the association of the physical resource and the H-ARQ process is dynamically determined.

49. The apparatus of any one of embodiments 39-47 wherein the association of the physical resource and the H-ARQ process is semi-statically configured.

50. The apparatus of any one of embodiments 39-49, wherein the controller is configured to: select at least one higher layer data stream to be transmitted in the next TTI and map only the selected higher layer data stream To H-ARQ processing.

51. The apparatus of embodiment 50 wherein a packet on the higher layer data stream is assigned a life span time such that the controller selects a packet for transmission based on the lifetime span time.

52. The apparatus of any one of embodiments 39-51, wherein when the QoS requirements of the higher layer data streams are similar, the controller determines the entity transmission and the H-ARQ configuration for processing in the available H-ARQ Normalize QoS.

53. The apparatus of embodiment 52, wherein a higher order MCS is employed for an H-ARQ process having a higher channel quality, and a lower order is used for an H-ARQ process having a lower channel quality MCS.

54. The apparatus of embodiment 52, wherein a maximum number of retransmission limits are assigned to each H-ARQ process based on QoS requirements of higher layer data mapped to H-ARQ processing.

55. The apparatus of any one of embodiments 39-51, wherein, when the QoS requirements of the higher layer data are not similar, the controller maps the higher layer data stream to an H-ARQ process associated with the quality of the channel. The channel quality closely matches the QoS requirements of the higher layer data stream.

56. The apparatus of any one of embodiments 39-51, wherein when the QoS requirements of the higher layer data are not similar, the controller is based on the QoS requirement of the higher layer data stream mapped to the H-ARQ process. The ARQ process allocates a maximum number of retransmission limits.

57. The apparatus of any one of embodiments 39-56, wherein when the transmission of the TB fails, the controller allocates the same physical resource for the retransmission of the TB.

58. The apparatus of embodiment 57, wherein the retransmission of the controller TB changes the physical transmission and the H-ARQ configuration.

59. The apparatus of any one of embodiments 57-58, wherein the controller segments the TB for retransmission.

60. The apparatus of any one of embodiments 39-56, wherein when the transmission of the TB fails, the controller changes the physical resource for retransmission of a TB.

61. The device of any one of embodiments 37-60, wherein the wireless communication system is an HSPA+ system.

62. The device of any one of embodiments 37-60, wherein the wireless communication system is LTE of a 3G wireless communication system.

63. The apparatus of any one of embodiments 39-62 wherein the available physical resources and associated H-ARQ processing are determined at the beginning of the common TTI boundary.

64. The apparatus of any one of embodiments 39-63, wherein the entity transmission parameter comprises an MCS for each TB.

65. The apparatus of embodiment 64 wherein an MCS for each TB is selected to distinguish QoS requirements of the TB.

66. The apparatus of embodiment 64 wherein an MCS for each TB is selected such that the supported QoS between H-ARQ processes is similar.

67. The apparatus of any one of embodiments 39-66, wherein the entity transmission parameter comprises a transport block size for each TB.

68. The apparatus of embodiment 67 wherein a TB size for each TB is selected to distinguish TB QoS requirements.

69. The apparatus of embodiment 67 wherein a TB size for each TB is selected such that the supported QoS between H-ARQ processes is similar.

Although the features and elements of the present invention are described in a particular combination of the preferred embodiments, each feature or element can be used alone or without the other features and elements of the preferred embodiment. Or not in all cases combined with other features and elements of the invention. The methods or flow charts provided in the present invention can be implemented by means of a computer program, software and firmware embodied in a computer readable storage medium, executed by a general purpose computer or processor. Examples of computer readable storage media include read only memory (ROM), random access memory (RAM), scratchpad, cache memory, semiconductor memory devices, magnetic media (eg, internal hard drives and removable magnetics) Discs, magnetic optical media, and optical media (such as CD-ROMs and digital versatile disks (DVD)).

By way of example, suitable processors include: general purpose processors, special purpose processors, conventional processors, digital signal processors (DSPs), multiple microprocessors, one or more microprocessors associated with DSP cores, controllers , microcontroller, dedicated integrated circuit (ASIC), field programmable gate array (FPGA) circuit, any other type of integrated circuit (IC) and/or state machine.

A processor associated with the software can be used to implement a radio frequency transceiver for use in a wireless transmit receive unit (WTRU), user equipment (UE), terminal, base station, wireless network controller, or any host. The WTRU can be used in conjunction with a module and implemented in hardware and/or software, such as cameras, video camera modules, video phones, speaker amplifiers, vibrating devices, speakers, microphones, television transceivers, hands-free handsets , keyboard, Bluetooth Module, frequency modulation (FM) wireless unit, liquid crystal display (LCD) display unit, organic light emitting diode (OLED) display unit, digital music player, media player, video game player module, internet browsing And/or any wireless local area network (WLAN) module.

102a-102n. . . H-ARQ processing

104a-104n. . . Multiplex and link adaptation processor

106. . . Controller

108a-108m. . . Higher layer data stream

The invention will be understood in more detail by the following description of the embodiments of the invention, which are illustrated by way of example, in which: FIG. 1 is a block diagram of an apparatus configured in accordance with the present invention; Figure 2 is a flow diagram of a method of simultaneously transmitting multiple TBs in a TTI using multiple H-ARQ processing in accordance with the present invention.

102a-102n. . . H-ARQ processing

104a-104n. . . Multiplex and link adaptation processor

106. . . Controller

108a-108m. . . Higher layer data stream

Claims (60)

A method of transmitting a multiple transport block (TB) in a transmission time interval (TTI), the method comprising: identifying at least two sets of available physical resources, each set of physical resources having different frequency subcarriers, and each set of entities The resource is associated with a specific hybrid automatic repeat request (H-ARQ) process; obtaining a channel quality measurement of each group of physical resources; mapping at least one higher layer data stream to at least two H-ARQ processes; independently determining each A set of available physical resources and associated H-ARQ processed entity transmission parameters and H-ARQ configurations to support QoS requirements mapped to the higher layer data stream for each H-ARQ process, wherein the entity transmission parameters include a modulation And coding scheme (MCS); generating a transport block (TB) from the higher layer data stream of the map according to the set of available physical resources and the associated H-ARQ processed entity transmission parameters and H-ARQ configurations, respectively; The TBs are transmitted in the TTI via the at least two H-ARQ processes. The method of claim 1, wherein the entity transmission parameters and the H-ARQ configuration comprise a transport format combination (TFC) for each TB. The method of claim 1, wherein the communication node comprises a plurality of antennas for multiple input multiple output (MIMO), and identifying available physical resources based on independent spatial data streams. The method of claim 1, further comprising simultaneously transmitting the TBs in the TTI via the at least two H-ARQ processes. The method of claim 4, wherein the subcarrier is a distributed subcarrier. The method of claim 4, wherein the subcarrier is a concentrated subcarrier. The method of claim 1, wherein the available physical resources are identified based on independent channelization coding. The method of claim 1, wherein the available physical resources are identified based on different time slots. The method of claim 1, wherein the association of the entity resource with the H-ARQ process is dynamically determined. The method of claim 1, wherein the association of the entity resource and the H-ARQ process is semi-statically configured. The method of claim 1, further comprising: selecting a higher layer data stream to be transmitted in the next TTI, thereby mapping only the selected higher layer data stream to the H-ARQ process. The method of claim 11, wherein a packet on each higher layer data stream is assigned a life span time to select a packet for transmission based on the lifetime span time. The method of claim 1, wherein when the QoS requirements of the higher layer data stream are similar, the entity transmission and the H-ARQ configuration are determined such that the QoS between available H-ARQ processes is similar. . The method of claim 13, wherein a higher order tone is used for an H-ARQ process having a higher channel quality. The Transmittance Coding Scheme (MCS) uses a lower order MCS for an H-ARQ process with a lower channel quality. The method of claim 13, wherein the maximum number of retransmissions is allocated for each H-ARQ process based on a QoS requirement of a higher layer data stream mapped to the H-ARQ process. The method of claim 1, wherein when the QoS requirements of the higher layer data stream are not similar, each higher layer data stream is mapped to an H-ARQ process associated with channel quality, the channel The quality is close to a QoS requirement that matches the higher layer data stream. The method of claim 1, wherein when the QoS requirements of the higher layer data stream are not similar, the QoS requirement based on a higher layer data stream mapped to the H-ARQ process is processed for H-ARQ. The maximum number of times to retransmit. The method of claim 1, wherein when the transmission of the TB fails, the physical resource mapped to the H-ARQ process is not changed by the retransmission of the TB. The method of claim 18, wherein the entity transmission and the H-ARQ configuration are changed for retransmission of the TB. The method of claim 18, wherein the TB is segmented for retransmission. The method of claim 1, wherein when the transmission of the TB fails, the physical resource mapped to the TB is changed for retransmission of the TB. The method of claim 1, wherein the wireless communication The system is an evolved High Speed Packet Access (HSPA+) system. The method of claim 1, wherein the wireless communication system is a Long Term Evolution (LTE) of a third generation (3G) wireless communication system. The method of claim 1, wherein the available physical resources and associated H-ARQ processing are determined at the beginning of a common TTI boundary. The method of claim 1, wherein the entity transmission parameter comprises a modulation and coding scheme (MCS) for each TB. The method of claim 25, wherein an MCS for each TB is selected to distinguish the QoS requirements of the TB. The method of claim 25, wherein the MCS for each TB is selected such that the supported QoS between the H-ARQ processes is similar. The method of claim 1, wherein the entity transmission parameter comprises a transport block size for each TB. The method of claim 28, wherein a TB size for each TB is selected to distinguish the QoS requirements of the TB. The method of claim 28, wherein a TB size for each TB is selected such that the QoS supported between the H-ARQ processes is similar. A device for transmitting a multiple transport block (TB) in a transmission time interval (TTI), the device comprising: complex H-ARQ processing; A controller configured to identify at least two sets of available physical resources, each set of physical resources having different frequency subcarriers, and each set of physical resources being associated with a particular hybrid automatic repeat request (H-ARQ Processing, mapping at least one higher layer data stream to at least two H-ARQ processes based on channel quality of each set of available physical resources and quality of service (QoS) requirements of the higher layer data stream; at least two multiplexes and links An adaptation processor, each multiplex and link adaptation processor being associated with one of the at least two H-ARQ processes and configured to independently determine the entity transmission parameters and H of the associated H-ARQ process - ARQ configuration to support QoS requirements mapped to the higher layer data stream of the associated H-ARQ process, wherein the entity transmission parameters comprise a modulation and coding scheme (MCS); each multiplex and link adaptation process The device is configured to generate a TB from the higher layer data stream mapped to the multiplex and link adaptation processor according to the entity transmission parameter and the H-ARQ configuration processed by the associated H-ARQ; and a transmitter , configured to send associations in the TTI The H-ARQ process at least two of the plurality of TB. The apparatus of claim 31, wherein each multiplex and link adaptation processor is operative to determine a transport format combination (TFC) for the mapped higher layer data stream. The apparatus of claim 31, wherein the controller identifies the available physical resource based on an independent spatial data stream generated by a plurality of antennas for multiple input multiple output (MIMO). The device of claim 31, wherein the controller identifies the available physical resource based on an independent subcarrier. The device of claim 34, wherein the subcarrier is a distributed subcarrier. The apparatus of claim 34, wherein the transmitter is further configured to simultaneously transmit the TBs associated with the at least two H-ARQ processes in the TTI. The device of claim 31, wherein the controller identifies the available physical resource based on an independent channelization code. The apparatus of claim 31, wherein the available physical resources are identified based on different time slots. The apparatus of claim 31, wherein the association of the entity resource with the H-ARQ process is dynamically determined. The apparatus of claim 31, wherein the association of the entity resource and the H-ARQ process is statically configured. The apparatus of claim 31, wherein the controller is configured to: select at least one higher layer data stream to be transmitted in the next TTI and map only the selected higher layer data stream to the H- ARQ processing. The apparatus of claim 41, wherein a packet on the higher layer data stream is allocated a life span time such that the controller selects a packet for transmission based on the lifetime span time. The apparatus of claim 31, wherein the controller determines the entity when the QoS requirements of the higher layer data stream are similar Transport and H-ARQ configuration to normalize QoS between available H-ARQ processing. The apparatus of claim 43, wherein a higher order modulation and coding scheme (MCS) is used for an H-ARQ process having a higher channel quality, and for a lower channel quality H - The ARQ process uses a lower order MCS. The apparatus of claim 43, wherein a maximum number of retransmission restrictions are assigned to each H-ARQ process based on QoS requirements mapped to the higher layer data processed by the H-ARQ. The device of claim 31, wherein when the QoS requirements of the higher layer data are not similar, the controller maps the higher layer data stream to an H-ARQ process associated with a channel quality, The channel quality is close to the QoS requirements that match the higher layer data. The device of claim 31, wherein when the QoS requirements of the higher layer data are not similar, the controller processes the H-ARQ based on the QoS requirements of the higher layer data mapped to the H-ARQ process. Assign the maximum number of retransmission limits. The apparatus of claim 31, wherein when a transmission of one TB fails, the controller allocates the same physical resource for the retransmission of the TB. The apparatus of claim 48, wherein the controller changes the physical transmission and the H-ARQ configuration for retransmission of the TB. The device of claim 48, wherein the controller segments the TB for retransmission. The apparatus of claim 31, wherein when the transmission of the TB fails, the controller changes the physical resource for retransmission of one TB. The device of claim 31, wherein the wireless communication system is an evolved high speed packet access (HSPA+) system. The device of claim 31, wherein the wireless communication system is a Long Term Evolution (LTE) of a third generation (3G) wireless communication system. The apparatus of claim 31, wherein the available physical resources and associated H-ARQ processing are determined at the beginning of the common TTI boundary. The apparatus of claim 31, wherein the entity transmission parameter comprises a modulation and coding scheme (MCS) for each TB. The apparatus of claim 55, wherein an MCS for each TB is selected to distinguish the QoS requirements of the TB. The apparatus of claim 55, wherein an MCS for each TB is selected such that the QoS supported between the H-ARQ processes is similar. The apparatus of claim 31, wherein the entity transmission parameter comprises a transport block size for each TB. The apparatus of claim 58 wherein a TB size for each TB is selected to differentiate the QoS requirements of the TB. The apparatus of claim 58 wherein a TB size for each TB is selected such that the H-ARQ process is between The QoS that is aided is similar.