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A method and device of the resource allocation method and device of a physical hybrid transmission channel

A resource allocation device and retransmission indication technology, applied in the direction of network traffic/resource management, wireless communication, transmission system, etc., can solve problems such as complex resource allocation and increased system complexity, and achieve saving transmission power, reducing complexity, The effect of improving resource utilization

Active Publication Date: 2018-03-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prior art considers changing PUSCH resource allocation and uplink DMRS cyclic shift n at the same time DMRS To realize the resource allocation of PHICH, the resource allocation of PUSCH is more complicated, especially in the frequency hopping mode, the resource allocation of PUSCH is more complicated, if the resource allocation of PUSCH needs to be changed in the process of PHICH resource allocation, the complexity of the system will be made improve

Method used

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  • A method and device of the resource allocation method and device of a physical hybrid transmission channel
  • A method and device of the resource allocation method and device of a physical hybrid transmission channel
  • A method and device of the resource allocation method and device of a physical hybrid transmission channel

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Experimental program
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Embodiment 1

[0058] Such as figure 1 shown, including the following steps:

[0059] Step 1, all users who are to be assigned PHICH resources form a user set; configure a PHICH resource set, and the PHICH resource set is used to mark whether the PHICH resource is available;

[0060] Preferably, when configuring the PHICH resource set, the PHICH group set can also be configured, and the PHICH group set is used to record the PHICH group number of the available PHICH resource;

[0061] In addition, when configuring the PHICH resource set, the remaining user set can also be configured, and the remaining user set is used to record users whose PHICH resource allocation fails;

[0062] Preferably, the user set can be formed in the following manner: the users whose cyclic shift must be 0 form the first subset, and the users of MU-MIMO (Multiple User-Multiple Input Multiple Output, multi-user multiple input multiple output) form the second subset Two sub-sets, other remaining users to be allocated...

Embodiment 2

[0071] For the PHICH resource allocation method under Normal CP in the LTE system, the flow chart of this embodiment is as follows figure 2 shown, including the following steps:

[0072] Step S101: Shift the cycle by n DMRS Minimum PRB index of the user whose value must be 0 A subset B1 is formed in order from small to large, and the MU-MIMO user's A subset B2 is formed in ascending order, and the other remaining users who are to be allocated PHICH resources Form a subset B3 in ascending order, and combine the above three subsets into a user set B, that is, B=[B1, B2, B3]; form groups available for PHICH in ascending order. group set A, namely in The total number of PHICH groups configured for the base station side; set the allocation counter ASSI_NUM to 0; create a PHICH whose size is the maximum number of groups × the maximum number of users that can be accommodated in the group The matrix PHICH_ASSI is initialized to 0, which is used to mark whether the PHICH re...

Embodiment 3

[0106] This embodiment describes a resource allocation device for implementing the methods of Embodiment 1 and Embodiment 2, such as image 3 As shown, including the configuration module and the resource allocation module, where:

[0107] The configuration module is configured to form a user set for all users to be allocated PHICH resources; configure a PHICH resource set, and the PHICH resource set is used to mark whether the PHICH resource is available;

[0108] The resource allocation module is configured to perform the following cyclic operation on each user in the user set: set a cyclic shift value for the user until the PHICH resource calculated using the set cyclic shift value is in the PHICH resource set as available, allocate the available PHICH resource to the user, and mark the resource as unavailable in the PHICH resource set; until there is no available resource in the PHICH resource set or each user in the user set executes the above loop operation.

[0109]Pref...

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Abstract

A resource allocation method and device of a physical hybrid ARQ indicator channel (PHICH). The method comprises: defining all uses to whom PHICH resources are to be allocated as a user set; configuring a PHICH resource set, the PHICH resource set being used for marking whether PHICH resources are available; performing the following loop operations on each user in the user set: setting a cyclic shift value for the user until a PHICH resource calculated by using the cyclic shift value is available in the PHICH resource set, allocating the available PHICH resource to the user, and marking the PHICH resource as an unavailable resource in the PHICH resource set; performing the loop operations until no PHICH resource is available in the PHICH resource set or until the loop operations have been performed on all the users in the user set. The technical solution does not affect the PHICH resource allocation, and furthermore, makes the user distribution in a PHICH group as even as possible, thereby improving the utilization of the PHICH resources, saving the PHICH transmit power, and reducing the complexity of resource allocation at the entire base station side.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a PHICH (Physical hybrid-ARQ indicator channel, physical hybrid retransmission indicator channel) resource allocation method and device. Background technique [0002] In the LTE (Long Term Evolution, long-term evolution) system, the PHICH carries the ACK (Acknowledgment, confirmation response) / NACK (Negative Acknowledgment, negative response) response made by the base station to the uplink PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) information. ACK / NACK information of multiple users mapped to the same group of resource elements constitutes a PHICH group. Under the normal CP (cyclic prefix, cyclic prefix), a PHICH group can accommodate 8 users, and a PHICH group under the extended CP can accommodate 4 users. ACK / NACK information belonging to the same group is distinguished by different orthogonal sequences. [0003] The LTE standard stip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/26H04W72/04H04L1/18
CPCH04L1/1893H04W72/04Y02D30/70
Inventor 雷超琴李俊
Owner ZTE CORP
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