RESOURCE ALLOCATION METHOD, NETWORK DEVICE, AND WIRELESS SYSTEM

• US 20110274076A1
• Filed: 07/05/2011
• Published: 11/10/2011
• Est. Priority Date: 01/06/2009
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: XUE, Lixia, QU, Bingyu, Berggren, Fredrik, Classon, Brian
• Granted Patent: US 8,614,983 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04W 72/51 based on terminal or device properties

Abstract

A resource allocation method, a network device and a wireless system are disclosed. The method includes: sorting Resource Blocks (RBs) used by a terminal of a first system and a terminal of a second system according to a use situation of the RBs used by the terminal of the first system and the terminal of the second system; and allocating the sorted RBs. When some RBs are available to a Long Term Evolution (LTE) terminal, coexistence of an LTE-Advanced (LTE-A) terminal and the LTE terminal is enabled, and compatibility between the LTE-A terminal and the LTE terminal is ensured.

Claims

1. A resource allocation method, comprising:

sorting Resource Blocks (RBs) used by a terminal of a first system and a terminal of a second system according to a use situation of the RBs used by the terminal of the first system and the terminal of the second system; and

allocating the sorted RBs, wherein

the second system is a system which is evolved from the first system and is capable of providing a communication service for terminals of the first system.

2. The method according to claim 1, wherein:

the sorting the RBs used by the terminal of the first system and the terminal of the second system comprises;

sorting the RBs used by the terminal of the first system and the terminal of the second system, wherein the sorting starts from a public RB of the terminal of the first system and the terminal of the second system.

3. The method according to claim 2, wherein:

the allocating the sorted RBs comprises;

allocating the public RB of a terminal of a backward-compatible system and a terminal of an evolved system to the terminal of the backward-compatible system or the terminal of the evolved system by using a downlink (DL) Resource Allocation (RA) type0 mode, DL RA type1 mode, DL RA type2 mode, uplink (UL) no hopping mode, or UL hopping mode; and

/or

allocating a dedicated RB of the terminal of the evolved system to the terminal of the evolved system by using a DL RA type0 mode, DL RA type1 mode, UL no hopping mode, or UL mirror hopping mode;

wherein the backward-compatible system is the first system, and the evolved system is the second system.

4. The method according to claim 1, wherein:

the sorting the RBs used by the terminal of the first system and the terminal of the second system comprises;

sorting RBs used by the terminal of the first system and sorting RBs used by the terminal of the second system separately.

5. The method according to claim 4, wherein:

the allocating the sorted RBs comprises;

allocating a public RB of the terminal of the first system and the terminal of the second system to the terminal of the first system or the terminal of the second system by using a downlink (DL) Resource Allocation (RA) type0 mode, DL RA type1 mode, DL RA type2 mode, uplink (UL) no hopping mode, or UL hopping mode; and

allocating a dedicated RB of the terminal of the second system to the terminal of the second system by using a DL RA type0 mode, DL RA type1 mode, DL RA type2 Localized Virtual Resource Block (LVRB) mode, UL no hopping mode, or UL mirror hopping mode.

6. The method according to claim 3, wherein:

the allocating the public RB of the terminal of the first system and the terminal of the second system to the terminal of the second system by using the DL RA type0 mode comprises;

dividing the public RB into one or more Resource Block Groups (RBGs) according to resource allocation granularity of the terminal of the first system or integer times of the resource allocation granularity, wherein each RBG of the terminal of the second system is aligned with one or more RBGs of the terminal of the first system; and

allocating each RBG to the terminal of the second system by using a bitmap mode.

7. The method according to claim 5, wherein:

the allocating the public RB of the terminal of the first system and the terminal of the second system to the terminal of the second system by using the DL RA type0 mode comprises;

dividing the public RB into one or more Resource Block Groups (RBGs) according to resource allocation granularity of the terminal of the first system or integer times of the resource allocation granularity, wherein each RBG of the terminal of the second system is aligned with one or more RBGs of the terminal of the first system; and

allocating each RBG to the terminal of the second system by using a bitmap mode.

8. The method according to claim 3, wherein:

the allocating the dedicated RB of the second system to the terminal of the second system by using the DL RA type0 mode comprises;

combining the dedicated RB into one or more Resource Block Groups (RBGs) according to dedicated parts of the dedicated RB, or dividing the dedicated RB into one or more RBGs according to resource allocation granularity of the terminal of the first system or integer times of the resource allocation granularity; and

allocating each RBG to the terminal of the second system by using a bitmap mode.

9. The method according to claim 5, wherein:

the allocating the dedicated RB of the second system to the terminal of the second system by using the DL RA type0 mode comprises;

combining the dedicated RB into one or more Resource Block Groups (RBGs) according to dedicated parts of the dedicated RB, or dividing the dedicated RB into one or more RBGs according to resource allocation granularity of the terminal of the first system or integer times of the resource allocation granularity; and

allocating each RBG to the terminal of the second system by using a bitmap mode.

10. The method according to claim 3, wherein:

the allocating the public RB of the terminal of the first system and the terminal of the second system to the terminal of the second system by using the DL RA type1 mode comprises;

dividing the public RB into one or more Resource Block Groups (RBGs) according to resource allocation granularity of the terminal of the first system or integer times of the resource allocation granularity, wherein each RBG of the terminal of the second system is aligned with one or more RBGs of the terminal of the first system;

dividing the RBGs into RBG subsets, wherein the number of the RBG subsets is the same as the resource allocation granularity or integer times of the resource allocation granularity; and

allocating RBs in each RBG subset to the terminal of the second system by using a bitmap mode.

11. The method according to claim 5, wherein:

the allocating the public RB of the terminal of the first system and the terminal of the second system to the terminal of the second system by using the DL RA type1 mode comprises;

dividing the public RB into one or more Resource Block Groups (RBGs) according to resource allocation granularity of the terminal of the first system or integer times of the resource allocation granularity, wherein each RBG of the terminal of the second system is aligned with one or more RBGs of the terminal of the first system;

dividing the RBGs into RBG subsets, wherein the number of the RBG subsets is the same as the resource allocation granularity or integer times of the resource allocation granularity; and

allocating RBs in each RBG subset to the terminal of the second system by using a bitmap mode.

12. The method according to claim 3, wherein:

the allocating the dedicated RB of the second system to the terminal of the second system by using the DL RA type1 mode comprises;

combining the dedicated RB into one or more Resource Block Groups (RBGs) according to the dedicated parts of the dedicated RB, or dividing the dedicated RB into one or more RBGs according to resource allocation granularity of the terminal of the first system or integer times of the resource allocation granularity;

dividing the RBGs into RBG subsets, wherein the number of the RBG subsets is the same as the number of dedicated parts of the dedicated RB, the resource allocation granularity or integer times of the resource allocation granularity; and

allocating RBs in each RBG subset to the terminal of the second system by using a bitmap mode.

13. The method according to claim 5, wherein:

the allocating the dedicated RB of the second system to the terminal of the second system by using the DL RA type1 mode comprises;

combining the dedicated RB into one or more Resource Block Groups (RBGs) according to the dedicated parts of the dedicated RB, or dividing the dedicated RB into one or more RBGs according to resource allocation granularity of the terminal of the first system or integer times of the resource allocation granularity;

dividing the RBGs into RBG subsets, wherein the number of the RBG subsets is the same as the number of dedicated parts of the dedicated RB, the resource allocation granularity or integer times of the resource allocation granularity; and

allocating RBs in each RBG subset to the terminal of the second system by using a bitmap mode.

14. The method according to claim 2, wherein:

the allocating the sorted RBs comprises;

allocating continuous PRBs to the terminal of the second system by using a downlink (DL) Resource Allocation (RA) type2 Localized Virtual Resource Block (LVRB) mode or uplink (UL) no hopping mode; and

allocating the public RB to the terminal of the second system by using a DL RA type2 Distributed Virtual Resource Block (DVRB) mode or UL hopping mode.

15. The method according to claim 4, wherein:

the allocating the sorted RBs comprises;

allocating continuous PRBs to the terminal of the second system by using a downlink (DL) Resource Allocation (RA) type2 Localized Virtual Resource Block (LVRB) mode or uplink (UL) no hopping mode; and

allocating the public RB to the terminal of the second system by using a DL RA type2 Distributed Virtual Resource Block (DVRB) mode or UL hopping mode.

16. The method according to claim 1, wherein:

the RBs comprise a public RB of the terminal of the first system and the terminal of the second system, and a dedicated RB of the terminal of the second system, and a dedicated RB exists on at least side of the public RB.

17. A network device, comprising:

a sorting unit, configured to sort Resource Blocks (RBs) used by a terminal of a first system and a terminal of a second system according to a use situation of the RBs used by the terminal of the first system and the terminal of the second system; and

an allocating unit, configured to allocate the RBs sorted by the sorting unit.

18. The device according to claim 17, wherein:

the sorting unit is configured to sort the RBs used by the terminal of the first system and the terminal of the second system, wherein the sorting starts from a public RB of the terminal of the first system and the terminal of the second system; and

the allocating unit is configured to allocate the public RB of the terminal of the first system and the terminal of the second system to the terminal of the first system or the terminal of the second system by using a downlink (DL) Resource Allocation (RA) type0 mode, DL RA type1 mode, DL RA type2 mode, uplink (UL) no hopping mode, or UL hopping mode; and

/or

the allocating unit is configured to allocate a dedicated RB of the terminal of the second system to the terminal of the second system by using a DL RA type0 mode, DL RA type1 mode, UL no hopping mode, or UL mirror hopping mode.

19. The device according to claim 17, wherein:

the sorting unit is configured to sort RBs used by the terminal of the first system and sort RBs used by the terminal of the second system separately; and

the allocating unit is configured to allocate a public RB of the terminal of the first system and the terminal of the second system to the terminal of the first system or the terminal of the second system by using a downlink (DL) Resource Allocation (RA) type0 mode, DL RA type1 mode, DL RA type2 mode, uplink (UL) no hopping mode, or UL hopping mode; and

/or the allocating unit is configured to allocate a dedicated RB of the terminal of the second system to the terminal of the second system by using a DL RA type0 mode, DL RA type1 mode, DL RA type2 Localized Virtual Resource Block (LVRB) mode, UL no hopping mode, or UL mirror hopping mode.

20. A wireless system, comprising:

a network device, configured to sort Resource Blocks (RBs) used by a terminal of a first system and a terminal of a second system according to a use situation of the RBs used by the terminal of the first system and the terminal of the second system, and allocate the sorted RBs.