RANDOM ACCESS CHANNEL CONSTRUCTING METHOD AND EQUIPMENT FOR WIRELESS COMMUNICATION SYSTEM

• US 20110002401A1
• Filed: 12/02/2008
• Published: 01/06/2011
• Est. Priority Date: 01/10/2008
• Status: Abandoned Application

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Liang, Chunli, Dai, Bo, Xia, Shuqiang, Hao, Peng, Yu, Bin
• Application Number:
  US12/812,369
• Publication Number:
  US 20110002401A1
• Time in Patent Office: Days
• US Class Current: 375/259
• CPC Class Codes: H04W 74/002 Transmission of channel access control information

Abstract

A method and an apparatus for constructing a random access channel of a wireless communication system, in which the method includes the following steps: setting a length of a preamble; setting a length of a cyclic prefix according to the length of the preamble; and setting a random access channel structure consisting of the preamble and the cyclic prefix. The random access channel designed by the method can be flexibly set to transmit in the UpPTS, and can satisfy the demand of a small coverage scenario in a better manner.

Claims

1. A method for constructing a random access channel of a wireless communication system, comprising:

setting a length of a preamble;

setting a length of a cyclic prefix according to the length of the preamble;

setting a random access channel structure consisting of the preamble and the cyclic prefix.

2. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 4096*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 592*Ts, 1184*Ts, 448*Ts, 480*Ts, 464*Ts, 1872*Ts, 1320*Ts, 1328*Ts, 288*Ts, 304*Ts, 1024*Ts, 512*Ts, 1792*Ts, 1240*Ts, 1248*Ts}.

3. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 6144*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 848*Ts, 296*Ts, 304*Ts, 2128*Ts, 1392*Ts, 1400*Ts, 1696*Ts, 592*Ts, 608*Ts, 1536*Ts, 432*Ts, 448*Ts, 768*Ts, 216*Ts, 224*Ts, 2048*Ts, 1312*Ts, 1320*Ts}.

4. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 8192*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 1104*Ts, 368*Ts, 376*Ts, 2384*Ts, 1464*Ts, 1472*Ts, 2208*Ts, 736*Ts, 752*Ts, 2048*Ts, 576*Ts, 592*Ts, 1024*Ts, 288*Ts, 296*Ts, 2304*Ts, 1384*Ts, 1392*Ts}.

5. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 10240*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 1360*Ts, 440*Ts, 448*Ts, 2640*Ts, 1536*Ts, 1544*Ts, 2720*Ts, 880*Ts, 896*Ts, 2560*Ts, 720*Ts, 736*Ts, 1280*Ts, 360*Ts, 368*Ts, 2560*Ts, 1456*Ts, 1464*Ts}.

6. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 12288*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 1616*Ts, 512*Ts, 520*Ts, 336*Ts, 1024*Ts, 1040*Ts, 3232*Ts, 672*Ts, 864*Ts, 880*Ts, 3072*Ts, 512*Ts, 1536*Ts, 432*Ts, 440*Ts, 256*Ts}.

7. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 14336*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 1872*Ts, 584*Ts, 592*Ts, 3152*Ts, 1680*Ts, 1688*Ts, 3744*Ts, 1168*Ts, 1184*Ts, 3584*Ts, 1008*Ts, 1024*Ts, 1792*Ts, 504*Ts, 512*Ts, 3072*Ts, 1600*Ts, 1608*Ts}.

8. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 16384*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 2128*Ts, 656*Ts, 664*Ts, 3408*Ts, 1752*Ts, 1760*Ts, 4256*Ts, 1312*Ts, 1328*Ts, 4096*Ts, 1152*Ts, 1168*Ts, 2048*Ts, 576*Ts, 584*Ts, 3328*Ts, 1672*Ts, 1680*Ts}.

9. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 18432*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 2384*Ts, 728*Ts, 736*Ts, 3664*Ts, 1824*Ts, 1832*Ts, 4768*Ts, 1456*Ts, 1472*Ts, 4608*Ts, 1296*Ts, 1312*Ts, 2304*Ts, 648*Ts, 656*Ts, 3584*Ts, 1744*Ts, 1752*Ts}.

10. The method for constructing the random access channel according to claim 1, wherein the length of the preamble is set to be 20480*Ts, and setting the length of the cyclic prefix according to the length of the preamble specifically comprises:

setting the length of the cyclic prefix to be one of the following values {0*Ts, 2640*Ts, 800*Ts, 808*Ts, 3920*Ts, 1896*Ts, 1904*Ts, 5280*Ts, 1600*Ts, 1616*Ts, 5120*Ts, 1440*Ts, 1456*Ts, 2560*Ts, 720*Ts, 728*Ts, 3840*Ts, 1816*Ts, 1824*Ts}.

11. An apparatus for constructing a random access channel of a wireless communication system, comprising:

first means, configured to set a length of a preamble;

second means, configured to set a length of a cyclic prefix according to the length of the preamble; and

third means, configured to set a random access channel structure consisting of the preamble and the cyclic prefix.

12. The apparatus for constructing the random access channel according to claim 11, wherein

the first means sets the length of the preamble to be 4096*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 592*Ts, 1184*Ts, 448*Ts, 480*Ts, 464*Ts, 1872*Ts, 1320*Ts, 1328*Ts, 288*Ts, 304*Ts, 1024*Ts, 512*Ts, 1792*Ts, 1240*Ts, 1248*Ts};

or

the first means sets the length of the preamble to be 6144*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 848*Ts, 296*Ts, 304*Ts, 2128*Ts, 1392*Ts, 1400*Ts, 1696*Ts, 592*Ts, 608*Ts, 1536*Ts, 432*Ts, 448*Ts, 768*Ts, 216*Ts, 224*Ts, 2048*Ts, 1312*Ts, 1320*Ts};

or

the first means sets the length of the preamble to be 8192*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 1104*Ts, 368*Ts, 376*Ts, 2384*Ts, 1464*Ts, 1472*Ts, 2208*Ts, 736*Ts, 752*Ts, 2048*Ts, 576*Ts, 592*Ts, 1024*Ts, 288*Ts, 296*Ts, 2304*Ts, 1384*Ts, 1392*Ts};

or

the first means sets the length of the preamble to be 10240*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 1360*Ts, 440*Ts, 448*Ts, 2640*Ts, 1536*Ts, 1544*Ts, 2720*Ts, 880*Ts, 896*Ts, 2560*Ts, 720*Ts, 736*Ts, 1280*Ts, 360*Ts, 368*Ts, 2560*Ts, 1456*Ts, 1464*Ts};

or

the first means sets the length of the preamble to be 12288*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 1616*Ts, 512*Ts, 520*Ts, 336*Ts, 1024*Ts, 1040*Ts, 3232*Ts, 672*Ts, 864*Ts, 880*Ts, 3072*Ts, 512*Ts, 1536*Ts, 432*Ts, 440*Ts, 256*Ts};

or

the first means sets the length of the preamble to be 14336*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 1872*Ts, 584*Ts, 592*Ts, 3152*Ts, 1680*Ts, 1688*Ts, 3744*Ts, 1168*Ts, 1184*Ts, 3584*Ts, 1008*Ts, 1024*Ts, 1792*Ts, 504*Ts, 512*Ts, 3072*Ts, 1600*Ts, 1608*Ts};

or

the first means sets the length of the preamble to be 16384*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 2128*Ts, 656*Ts, 664*Ts, 3408*Ts, 1752*Ts, 1760*Ts, 4256*Ts, 1312*Ts, 1328*Ts, 4096*Ts, 1152*Ts, 1168*Ts, 2048*Ts, 576*Ts, 584*Ts, 3328*Ts, 1672*Ts, 1680*Ts};

or

the first means sets the length of the preamble to be 18432*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 2384*Ts, 728*Ts, 736*Ts, 3664*Ts, 1824*Ts, 1832*Ts, 4768*Ts, 1456*Ts, 1472*Ts, 4608*Ts, 1296*Ts, 1312*Ts, 2304*Ts, 648*Ts, 656*Ts, 3584*Ts, 1744*Ts, 1752*Ts};

or

the first means sets the length of the preamble to be 20480*Ts, and the second means sets the length of the cyclic prefix to be one of the following values {0*Ts, 2640*Ts, 800*Ts, 808*Ts, 3920*Ts, 1896*Ts, 1904*Ts, 5280*Ts, 1600*Ts, 1616*Ts, 5120*Ts, 1440*Ts, 1456*Ts, 2560*Ts, 720*Ts, 728*Ts, 3840*Ts, 1816*Ts, 1824*Ts}.