Dynamic resource allocating method and apparatus, base station, terminal

A dynamic resource and allocation method technology, applied in the field of communication, can solve the problems of high control signaling overhead, LTE control channel scheduling high-frequency carriers, etc.

Active Publication Date: 2015-11-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the problems in the related technologies that the LTE control channel cannot be used to schedule the uplink and downlink services and uplink service transmissions of multiple transmission symbols on the high-frequency carrier, and in the independent networking network of the LTE carrier and the high-frequency carrier, the control signaling overhead is relatively large, etc., this paper The invention provides a dynamic resource allocation method and device, a base station, and a terminal to at least solve the above technical problems

Method used

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  • Dynamic resource allocating method and apparatus, base station, terminal
  • Dynamic resource allocating method and apparatus, base station, terminal
  • Dynamic resource allocating method and apparatus, base station, terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0197] Assuming that there are at least two carrier elements linked to a terminal UE1, the two carrier elements can be located at the same node TP0 or at two different nodes TP1 and TP2, and TP1 and TP2 have ideal backhaul links (smaller backhaul delay). It is assumed that the LTE carrier element is CC0, and the high-frequency carrier element is CC1. When the base station wants to send downlink data to UE1 on CC1 and expects UE1 to receive it correctly, the base station sends corresponding downlink control indication signaling on CC0 to indicate the time domain resource position of the downlink data corresponding to UE1 on CC1. Such as Figure 5 shown. Wherein, it is assumed that CC0 is a 4GLTE carrier, and CC1 is a high-frequency carrier. DR means that UE1 receives downlink data on CC1. HARQ means that UE1 feeds back the HARQ information for downlink data on the uplink carrier corresponding to CC0. RR means that UE1 receives and retransmits downlink data on the high-frequen...

Embodiment 2

[0214] The base station indicates the number of corresponding downlink data resource allocation time units by using the downlink control indication signaling in a predetermined manner. The RAE is composed of N (N>0) transmission symbols in the time domain, and the N value base station and the terminal can be defined in a predefined manner, wherein, there is a one-to-one correspondence between the N value and the 4GLTE carrier element bandwidth, or N There is a corresponding relationship between the value and the bandwidth of the high-frequency carrier element, as shown in Table 2. Wherein Zn (1-4) is an integer greater than zero.

[0215] Table 2

[0216] System Bandwidth (MHz)

N value selection

≤X1

Z1

X1+1~X2

Z2

X2+1~X3

Z3

X3+1~X4

Z4

[0217] The base station schedules UE1 to receive downlink data on corresponding one or more RAEs on the downlink carrier corresponding to CC1 through the DL Grant signaling on th...

Embodiment 3

[0231] The base station indicates the number of corresponding downlink data resource allocation time units by using the downlink control indication signaling in a predetermined manner. The RAE is composed of N (N>0) transmission symbols in the time domain, and the N-value base station can be configured to the terminal through high-layer signaling. Preferably, the predefined N value is one of the following values: 24, 28, 30, 32, 40, 42.

[0232] The base station schedules UE1 to receive downlink data on one or more corresponding RAEs on CC1 through DL Grant signaling on the 4G carrier CC0.

[0233] When the maximum time window scheduled by DLGrant is when, and includes Y RAEs, then the base station instructs UE1 to receive downlink data in one or more RAEs of the Y RAEs. Preferably, the value of Y is 10, or the value of Y is the number of RAEs included in the time domain within 1 ms.

[0234]Preferably, when the first resource allocation mode is adopted in the DLGrant (s...

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Abstract

Provided are a dynamic resource allocation method and device, a base station and a terminal. The method comprises: a base station acquiring resource allocation information about downlink data and / or uplink data indicated by downlink control signalling, wherein the resource allocation information comprises the location and number of resource allocation elements (RAEs); the RAEs comprise N transmission symbols in a time domain; and the RAEs completely occupy the full bandwidth in a frequency domain, or each RAE occupies one BP among X bandwidth parts (BPs) in the frequency domain, the X BPs forming the frequency domain, where N is an integer greater than 0, and X is an integer greater than 1; and the base station sending the resource allocation information to a terminal. By means of the technical solution provided in the present invention, the problems in the related art that it is not possible to use an LTE control channel to schedule uplink and downlink services of a plurality of transmission symbols on a high-frequency carrier and the transmission of uplink services, and that the overhead of control signalling is relatively high in a network independently networked by an LTE carrier and the high-frequency carrier and the like are solved, thus achieving that the LTE carrier schedules the high-frequency carrier across carriers.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for allocating dynamic resources, a base station, and a terminal. Background technique [0002] In high-frequency communication, since a higher carrier frequency is used for transmission, the average path loss will be much larger than that of the traditional Long-Term Evolution (LTE) system. For example, we use a carrier frequency of 28GHz for transmission. , using the formula: [0003] L f Indicates the path loss of the LTE system; the calculated average ratio information between the high-frequency path loss value and the LTE path loss value is: [0004] L H / L L = ( 4 πR λ H ) 2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/12
CPCH04L5/00H04L5/001H04L5/0044H04L5/0082H04L5/0091H04L5/0055H04W72/21H04W72/23H04W72/0453H04W72/12
Inventor 李春旭郭森宝张峻峰
Owner ZTE CORP
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